MANAGEMENT OF PATIENTS WITH SARS-COV-2 INFECTIONS AND OF PATIENTS WITH CHRONIC LUNG DISEASES DURING THE COVID-19 PANDEMIC (AS OF 9 MAY 2020)

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https://doi.org/10.1007/s00508-020-01691-0

Management of patients with SARS-CoV-2 infections and
of patients with chronic lung diseases during the COVID-19
pandemic (as of 9 May 2020)
Statement of the Austrian Society of Pneumology (ASP)

Holger Flick · Britt-Madelaine Arns · Josef Bolitschek · Brigitte Bucher · Katharina Cima · Elisabeth Gingrich ·
Sabin Handzhiev · Maximilian Hochmair · Fritz Horak · Marco Idzko · Peter Jaksch · Gabor Kovacs ·
Roland Kropfmüller · Bernd Lamprecht · Judith Löffler-Ragg · Michael Meilinger · Horst Olschewski ·
Andreas Pfleger · Bernhard Puchner · Christoph Puelacher · Christian Prior · Patricia Rodriguez · Helmut Salzer ·
Peter Schenk · Otmar Schindler · Ingrid Stelzmüller · Volker Strenger · Helmut Täubl · Matthias Urban ·
Marlies Wagner · Franz Wimberger · Angela Zacharasiewicz · Ralf Harun Zwick · Ernst Eber

© The Author(s) 2020

Summary The coronavirus disease 2019 (COVID-19)                     has to be adapted during the pandemic but must still
pandemic is currently a challenge worldwide. In Aus-                be guaranteed.
tria, a crisis within the healthcare system has so far
been prevented. The treatment of patients with com-                 Keywords SARS-CoV-2 · COVID-19 · Community
munity-acquired pneumonia (CAP), including SARS-                    acquired pneumonia · ARDS · Chronic lung disease
CoV-2 infections, should continue to be based on ev-
idence-based CAP guidelines during the pandemic;                    Introduction
however, COVID-19 specific adjustments are useful.
The treatment of patients with chronic lung diseases                The Austrian healthcare system is currently con-
                                                                    fronted with the challenge of the coronavirus disease

H. Flick · G. Kovacs · H. Olschewski                                F. Horak
Division of Pulmonology, Department of Internal Medicine,           Allergy Center Vienna West, Vienna, Austria
Medical University of Graz, Graz, Austria
                                                                    M. Idzko
B.-M. Arns                                                          Division of Pulmonology, Department of Internal Medicine
Department of Internal Medicine I, Hanusch Krankenhaus,             II, Medical University of Vienna, Vienna, Austria
Vienna, Austria
                                                                    P. Jaksch
J. Bolitschek · F. Wimberger                                        Division of Thoracic Surgery, Department of Surgery,
Elisabethinen Hospital Linz, Linz, Austria                          Medical University of Vienna, Vienna, Austria
B. Bucher · K. Cima · H. Täubl                                      G. Kovacs · H. Olschewski
Department of Pulmonology, Tirol Kliniken, Hospital                 Ludwig Boltzmann Institute for Lung Vascular Research,
Hochzirl-Natters, Natters, Austria                                  Graz, Austria
E. Gingrich                                                         R. Kropfmüller · B. Lamprecht · H. Salzer
Private Practice in Pulmonology, Vienna, Austria                    Department of Pulmonology, Kepler University Hospital,
                                                                    Medical Faculty, Johannes Kepler University, Linz, Austria
S. Handzhiev
Department of Pulmonology, University Hospital Krems,               J. Löffler-Ragg
Krems, Austria                                                      Department of Internal Medicine II (Infectious Diseases,
                                                                    Pneumology, Rheumatology), Medical University of
M. Hochmair
                                                                    Innsbruck, Innsbruck, Austria
Respiratory Oncology Unit, Karl Landsteiner Institute of
Lung Research and Pulmonary Oncology, Department                    M. Meilinger · M. Urban
of Internal and Respiratory Medicine, Krankenhaus                   Department of Internal and Respiratory Medicine,
Nord—Klinik Floridsdorf, Vienna, Austria                            Krankenhaus Nord—Klinik Floridsdorf, Vienna, Austria

K                    Management of patients with SARS-CoV-2 infections and of patients with chronic lung diseases during the. . .
main topic

2019 (COVID-19) pandemic. Since March 2020, inci-                  In order to attain all three of the aforementioned
sive adaptations to the thus far well-established med-             goals, as far as the current resources (which are lim-
ical care structures and procedures have been rapidly              ited due to the pandemic) allow, alignment of medical
implemented in order to be prepared for a high num-                activities with existing evidence-based and well-im-
ber of acutely and severely ill patients suffering from            plemented guidelines and their adaptation to the
COVID-19. Simultaneously, the speed of the spread                  currently difficult situation, as might be required in
of SARS-CoV-2 in Austria could be effectively reduced              individual cases, should be continued. Especially
by radical, preventive social measures and a critical              with respect to chronic diseases, acting with good
overburdening of the medical care centres has so far               judgement and open communication with patients
been successfully prevented.                                       and relatives are required to find feasible solutions.
   In the current situation, there are three goals for
pneumologists:                                                     Management of patients with SARS-CoV-2
1. Optimal medical care for severely ill patients suffer-          infections
   ing from COVID-19 in order to achieve the lowest
   possible SARS-CoV-2 mortality rate.                             The current epidemiological situation
2. Guarantee of an unchanged best possible medical
                                                                   General facts on COVID-19
   acute care of patients with other severe pulmonary
   diseases (infections, asthma, chronic obstructive               Since January 2020, the COVID-19 pandemic has
   pulmonary disease (COPD), interstitial lung dis-                spread rapidly worldwide. According to the World
   ease (ILD) or cystic fibrosis (CF) exacerbations, pul-          Health Organization (WHO) up to now 3,759,967
   monary embolism, probable malignant pulmonary                   COVID-19 cases have been confirmed worldwide and
   lesions, etc).                                                  259,474 patients have already died [1].
3. Continuation of important medical treatment of                     Epidemiological information on and study results
   people with underlying severe chronic diseases                  from COVID-19 must still be interpreted with cau-
   (lung cancer, asthma, COPD, pulmonary hyperten-                 tion. They are subject to powerful dynamics and mul-
   sion, ILD, CF, status post lung transplantation, sleep          tifactorial influences, display a variable data quality
   associated breathing disorders, etc.). These patients           and due to differences in healthcare structures and
   require special attention, because they could be                epidemiological features allow only limited interna-
   further threatened by a SARS-CoV-2 infection.                   tional comparisons. Therefore, as is common practice
                                                                   in antibiotic stewardship, national and regional data
A. Pfleger · P. Rodriguez · V. Strenger · M. Wagner ·              should be systematically gathered and regularly ana-
E. Eber, Professor of Paediatrics, MD, ATSF, FERS ()              lyzed. This is the only way in which the current local
Division of Paediatric Pulmonology and Allergology,                situation can be adequately assessed.
Department of Paediatrics and Adolescent Medicine,                    Like influenza, COVID-19 is a viral infectious dis-
Medical University of Graz, Auenbruggerplatz                       ease with a variable course (from asymptomatic to
34/2, 8036 Graz, Austria                                           mild to severe to fatal). In Europe, most of the people
ernst.eber@medunigraz.at
                                                                   positively tested show mild symptoms. Conversely,
B. Puchner                                                         more than 80% of the hospitalized patients suffered
Division of Pulmonology, Reha Zentrum Münster, Münster,            from fever, cough and respiratory distress (Table 1;
Austria                                                            [2, 3]). In particular, older and comorbid patients are
C. Puelacher                                                       severely affected and present with severe community
Interdisciplinary Outpatient Sleep Laboratory, Telfs, Austria      acquired pneumonia (CAP) with resulting hypoxia. In
C. Prior                                                           addition, possible COVID-19 specific phenomena are
Private Practice in Pulmonology, Innsbruck, Austria                described, such as a reduced sensation of dyspnea,
                                                                   whereby a respiratory deterioration may not be sub-
P. Schenk
                                                                   jectively perceived for a long time, a lack of increase
Department of Pulmonology, Landesklinikum Hochegg,
Grimmenstein, Austria                                              of the respiratory rate despite severe oxygenation dis-
                                                                   turbance, and a temporary loss of smell and taste.
O. Schindler                                                          Due to the infectiousness of the pathogen, hospi-
Department of Internal, Respiratory and Critical Care
                                                                   tal-associated SARS-CoV-2 pneumonia can also be ex-
Medicine, State Hospital II, Location Enzenbach,
Gratwein-Straßengel, Austria                                       pected in the future.
                                                                      According to the European Centre for Disease
I. Stelzmüller                                                     Prevention and Control (ECDC), severe COVID-19
Private Practice in Pulmonology, Salzburg, Austria
                                                                   courses (need for hospitalization) have so far been
A. Zacharasiewicz                                                  observed in Europe in 28% of all cases; however, due
Department of Paediatrics, Teaching Hospital of the Medical        to undetected mild courses, a high number of unre-
University of Vienna, Wilhelminen Hospital, Vienna, Austria        ported cases and a higher rate of mild courses can be
R. H. Zwick                                                        assumed.
Therme Wien Med, Vienna, Austria

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Table 1        Symptoms of a SARS-CoV-2 infection [2, 3]                 Table 2 Hospital and ICU mortality rates for COVID-
Symptoms             Positively tested people    Hospitalized            19 worldwide as compared to other CAP-associated
                     (including mild cases)      COVID-19 patients       pathogens from solely European and North American stud-
                                                                         ies
Fever/chills         49%                         85%
Cough                24%                         86%                                                        Hospital mortality   ICU mortality
Shortness of         –                           80%                     CAP in general [7, 15–19]          12.9–14.1%           17.0–29.5%
breath                                                                   S. pneumoniae [18, 20, 21]         8.0–12.0%            17.5–26.0%
Myalgia              –                           34%                     L. pneumonia [22–25]               3.9–18.5%            21.6%
Diarrhea             2%                          27%                     Viral CAP in general [26, 27]      14.8%                22.0%
Nausea/vomiting      –                           24%                     Influenza A/B [10, 19, 28–31]      12.6%                17.1–41.2%
Sore throat          12%                         18%                     COVID-19
Headache             –                           16%                     China (Wuhan)a [32–36]             10.7–21.9%           61.5%
Nasal congestion,    4%                          16%                     USA (New York)b [37]               21.0%                78.0%
rhinorrhea
                                                                         Europe (ECDC) [2]                  14%                  –
Chest pain           –                           15%                                     a
                                                                         United Kingdom [26]                –                    34.8–46.8%
Abdominal pain       –                           8%
                                                                         Spaina [38]                        –                    29.2%
Fatigue              8%                          –
                                                                         Italy (Lombardy)a [39]             –                    25.6%
Aching               7%                          –                       a
                                                                           COVID-19 pandemic epicenters
                                                                         b
                                                                          Epicenter New York: on 23 April 2020 approx. tenfold more SARS-CoV-2
   An average of 16% of hospitalized patients suffered                   infected people/100,000 inhabitants and 20-fold more COVID-19
                                                                         deaths/100,000 inhabitants than in Austria at the same time [40]
from a very serious illness course (need for intensive                   CAP community acquired pneumonia, COVID-19 coronavirus disease 2019,
care or respiratory support) and COVID-19 hospital                       ECDC European Centre for Disease Prevention and Control, ICU intensive
mortality in Europe is currently at 14% [2].                             care unit
   There are relevant differences in Europe with re-
spect to COVID-19 deaths per 100,000 inhabitants.
With a comparable COVID-19 incidence (175–250                           Hospitalization and mortality risk for COVID-19
cases/100,000 inhabitants), 7–9 deaths/100,000 have                     and community-acquired pneumonia due to other
been registered in Austria, Denmark, Germany, and                       pathogens
Liechtenstein and 31–39 deaths/100,000 in France,                       In order to realistically classify the current COVID-19
Sweden, and the Netherlands [4]. In Europe, the high-                   data, they must also be compared with the incidence
est burden of COVID-19 is currently reported from                       and course of other severe respiratory infections as
Belgium (455 cases/100,000 and 75 deaths/100,000                        they occurred before the COVID-19 pandemic. In
inhabitants). In line with these figures, the European                  principle, pathogen-induced CAP which requires hos-
monitoring of excess mortality for public health action                 pitalization (hCAP) is frequent. With an incidence
(EuroMOMO) network has recorded an exceptionally                        of 296 hCAP per 100,000 inhabitants, an estimated
high pandemic-associated excess mortality rate in                       26,222 patients with hCAP are treated in Austria ev-
certain European countries (UK, France, Spain, Bel-                     ery year and 2185 patients every month [7]. With an
gium, the Netherlands, Italy, and Switzerland), but                     average hospital mortality rate of 13% (Table 2) Austria
a significantly lower one in Austria and other coun-                    has 3409 (39/100,000) hCAP deaths per year and 284
tries, such as Denmark, Germany, Greece, Norway,                        hCAP deaths per month whereas COVID-19 caused
and Ireland [5].                                                        491 deaths per month during the peak phase of the
   In Austria, 15,735 persons have so far been tested                   pandemic (27 March–27 April 2020). It can therefore
positive for SARS-CoV-2 and 615 (3.9%) have died                        be assumed that in Austria the pandemic caused at
from or with COVID-19. At present, 230 COVID-19                         least a transient doubling of hCAP deaths/100,000 in-
patients are hospitalized (peak at the beginning of                     habitants.
March with 1010 hospitalized patients) and 79 are be-                      Influenza must be considered separately as the in-
ing treated in intensive care units (peak at the begin-                 fluenza case fatality rate is only partly caused by in-
ning of March with 267 ICU patients) (24–34% more                       fluenza pneumonia but 400,000 influenza-associated
than the European average). Thus, at the beginning of                   deaths are annually expected worldwide [8, 9].
March 26% (currently only 8%) of all available inten-                      The incidence of inpatient influenza cases in Eu-
sive care beds in Austria were occupied by COVID-19                     rope ranges between 12–95/100,000 depending on the
patients [6]. Primary data on the number of patients                    season of the year and the effective vaccination cov-
previously treated in hospitals or intensive care units                 erage rate of the population, and for children in Aus-
and the mortality rates are currently unavailable in                    tria between 2002 and 2018 was 50/100,000 [10–13].
Austria.                                                                If this incidence is applied to Austria, assuming an
                                                                        ICU rate of 7% and a hospital mortality rate of 4%,
                                                                        during each influenza season there will be 1152–8416
                                                                        inpatients, 81–589 cases requiring ICU, and 46–337

K                        Management of patients with SARS-CoV-2 infections and of patients with chronic lung diseases during the. . .
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Table 3 Comparison of comorbidities of patients who                    care. The significance of typical cardiopulmonary,
died from COVID-19 or other pneumonia pathogens (pneu-                 renal and metabolic comorbidities for the course of
mococcus, influenza, etc.) [41–44]                                     CAP is well-known from influenza, pneumococcal
Comorbidities of deceased pa-    COVID-19       Other CAP pathogens    and legionella infections, and plays a decisive role in
tients                           (%)            (%)
                                                                       SARS-CoV-2 CAP to the same extent. Consequently,
Arterial hypertension            40–75          54                     as is the case with other CAP pathogens, the risks
Diabetes                         20–31          31                     of hospitalization and mortality of SARS-CoV-2 CAP
Heart diseases                   23–49          38                     increase significantly from the age of 60 years and
Neurologic disorders             13             16–19                  with the number of concomitant diseases (Table 3; [7,
Carcinomas                       2–18           28                     10, 15, 29, 41]).
Chronic renal insufficiency      23             13–27                     Furthermore, the COVID-19 pandemic has clearly
Chronic lung diseases            8–19           6–24                   demonstrated that the mortality rate of an acute in-
Dementia                         18             28
                                                                       fection is always determined by social and structural
                                                                       factors (e.g. timely public health interventions to slow
 CAP community acquired pneumonia, COVID-19 coronavirus disease 2019
                                                                       the spread of a pandemic infection, prompt and flex-
                                                                       ible structural adjustments to the healthcare system,
inpatient deaths in Austria. For the period from De-                   the number of immediately available intensive care
cember to April (influenza season), for Austria this                   or mechanical ventilation beds, capacity for isolation
means that there are 288–2104 inpatients and 20–147                    and protection in the outpatient and inpatient area,
influenza cases requiring ICU per month. Due to                        short-term and effective medical staff training).
a very low influenza vaccination rate as compared to                      In some countries and regions there were acute
other European countries, higher rather than lower                     supply emergencies and therefore it can be assumed
rates can be expected for Austria. This assumption is                  that in these critical and partly catastrophic medi-
supported by calculations of the Agentur für Gesund-                   cal situations, not all acutely and severely ill patients
heit und Ernährungssicherheit (AGES), which based                      could be provided with the required timely and ade-
on the statistical model FluMOMO, supposes an aver-                    quate medical care. For example, the mortality rate
age of 2326 influenza deaths per year in the last 4 years              in the primarily unprepared epicenter (Wuhan city
and thus 582 influenza deaths per month during the                     in Hubei province) was initially 12% and later in the
influenza season (COVID-19: currently approximately                    other Chinese provinces only about 1% [45]. This is
450 deaths per month, as of 19 April 2020) [14]. Ac-                   substantiated by excess mortality rates recorded by
cordingly, the annual wave of influenza in Austria is                  EuroMOMO in some countries that were severely af-
very likely to lead to a burden on the healthcare sys-                 fected by the pandemic.
tem comparable to that of the current COVID-19 pan-
demic. Therefore, systematic recording like that cur-                  SARS-CoV-2 in children
rently established for COVID-19 should also be intro-                  In an analysis of the first approximately 45,000 labo-
duced in Austria with respect to influenza-associated                  ratory-confirmed COVID-19 cases in China, children
deaths amongst hospitalized patients.                                  39.0 °C. Cough-
pathogens, and depending on the functionality of the                   ing and tachypnea are described in about 30–50%
healthcare system hospital mortality would appear to                   and pharyngitis (5–45%), rhinitis (10–30%), diar-
be comparable to that of other pathogen-induced CAP                    rhea (10–30%) and vomiting (6%) are significantly
(Table 2).                                                             less frequent [48–51]. Similarly to adults, laboratory
   The CAP mortality risk is determined by the extent                  tests showed an increase in C-reactive protein (CRP)
of immediate lung parenchyma damage, secondary                         (moderate), transaminases, lactate dehydrogenase,
infections/complications, age and pre-existing co-                     D-dimer and creatine kinase, as well as leukopenia
morbidities, and the quality of the available medical                  (primarily lymphopenia) [51].

   Management of patients with SARS-CoV-2 infections and of patients with chronic lung diseases during the. . .       K
main topic

Fig. 1 Guidance for pa-
                                    Acute respiratory symptoms (cough, shortness of breath, possibly fever) during the COVID-19 pandemic
tients regarding the severity
of a possible SARS-CoV-2
infection                       Mild symptoms                                           Severe symptoms

                                • Previously healthy paents:                           • Previously healthy paents:
                                  only light coughing, no shortness of breath             severe coughing and shortness of breath

                                • Co-morbid paents (ComoP) with chronic                • Co-morbid paents (ComoP) with chronic
                                  cough/dyspnea: minor increase in coughing or            cough/dyspnea: significant increase in coughing or
                                  shortness of breath                                     shortness of breath

                                9 Observe course of disease at home (a rapid            9 Call the 24h-hotline 1450 and follow the
                                  deterioraon may occur 7-10 days aer the onset         instrucons given
                                  of symptoms; in this case immediate presentaon       9 In the case of ComoP, if necessary, addional
                                  to hospital)                                            telephone consultaon with the responsible
                                9 Seek informaon about current instrucons               doctor‘s office/department
                                  (Ministry of Social Affairs, AGES) and call the 24h-   9 When suspecng a life threatening situaon,
                                  hotline 1450                                            present to hospital immediately
                                9 In the case of ComoP addional telephone
                                  consultaon with the responsible doctor’s
                                  office/department

   Due to the less specific symptoms in children, it is                  Epidemiological outlook
difficult to make a reliable clinical diagnosis. Accord-                 As soon as the governmental pandemic prevention
ingly, especially in pediatric patients it is important to               measures are eased, the Austrian healthcare system
test extensively for SARS-CoV-2 and to implement ap-                     must be further prepared for more than a renewed
propriate protective measures for medical personnel.                     increase in the number of COVID-19 cases. All other
   Severe courses of respiratory insufficiency, or the                   respiratory infections (e.g. influenza, RSV, Pneumo-
need for intensive care constitute the exception [47].                   coccus, Mycoplasma and Bordetella infections), the
Severe COVID-19 infections have been repeatedly sus-                     spread of which as in the case of SARS-CoV-2 was
pected in infants; however, these were mostly only                       concomitantly suppressed by the pandemic preven-
suspected cases (without SARS-CoV-2 testing). The                        tion measures, will also increase again.
authors assume that other viruses (especially respira-                       Within this context, the increased public awareness
tory syncytial virus [RSV]) might have caused a con-                     of potentially threatening infectious diseases created
siderable percentage of the severe courses of the in-                    by the COVID-19 pandemic is to be welcomed. As
fection [52]. Only a few pediatric COVID-19 deaths                       a next step, targeted reasonable, individual and social
have been reported in the literature so far [46, 47, 53].                preventive measures have to be developed and sup-
   Due to the often milder disease course in children,                   ported. For example, these could not only include
it has been discussed whether oligosymptomatic and                       the individual willingness for protective vaccination
asymptomatic children could play an essential role in                    against influenza and other relevant pathogens but
the transmission, without this hypothesis ever having                    also a deeper understanding among the population of
been confirmed scientifically [52]. On the contrary,                     how to autonomously differentiate between harmless
a recent study from Iceland showed that when screen-                     infections that should be cured at home and serious
ing asymptomatic individuals, the proportion of virus                    acute illnesses that must be treated by a general prac-
excretion is threefold higher in 40–50 year-olds (ap-                    titioner or in hospital (Fig. 1).
prox. 1.5%) than in children/young people between
the ages of 10 and 20 years (approx. 0.5%). In a group                   Management of SARS-CoV-2 pneumonia
of more than 800 children under 10 years of age, not
a single child was tested positive [54].                                 Basic management of SARS-CoV-2 CAP
   The SARS-CoV-2 infections in children with risk                       Serious SARS-CoV-2 pneumonia is a severe viral CAP
factors and underlying diseases (chronic respiratory                     (svCAP), the clinical presentation of which (acute on-
diseases such as cystic fibrosis, severe asthma, bron-                   set, bilateral pneumonia, progressive respiratory fail-
chopulmonary dysplasia as well as cardiac diseases,                      ure, high risk of mortality) is comparable to that of se-
primary and secondary immunodeficiencies, underly-                       vere influenza CAP (Table 2). In the current pandemic
ing malignant diseases, malnutrition, etc.) are rarely                   situation, the guarantee of sufficient medical care for
reported in pediatric analyses [46, 52]. Whether or                      such severe medical conditions is of crucial impor-
not it can be derived that these children are less at                    tance. Due to the frequency of svCAP (especially dur-
risk than adults with risk factors, or whether children                  ing the annual influenza season), the medical centers
from risk groups have more effectively been protected                    in Austria are familiar with the clinical management
against infection, remains unclear.                                      of svCAP.

K                    Management of patients with SARS-CoV-2 infections and of patients with chronic lung diseases during the. . .
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Fig. 2 Guidance for physi-
                                      Acute respiratory symptoms (cough, shortness of breath, possibly fever) during the COVID-19 pandemic
cians regarding the de-
gree of severity of a prob-
able SARS-CoV-2 infec-            Mild disease (outpaent treatment possible)              Severe disease (inpaent treatment required)
tion (adapted from [55,
                      a           • So far healthy, or minor ComoP (ComoP/1a)              • So far healthy, or minor ComoP (ComoP/1a)
pp. 151–200]).         Robert
                                    (prior confinement in bed
main topic

Fig. 3 Guidance for the
                                Indicaons for immediate intensive care management (ICU)
identification of critically
ill CAP patients during the       o Severe O2-refractory hypoxia with imminent respiratory exhauson
COVID-19 pandemic (CAP
as an emergency) (adapted         o Volume-refractory hypotension
from [55, pp. 151–200]).
a
  Robert Koch       Institute   9 Adherence to strict hygienic measuresa
guidelines on hygienic mea-     9 Mechanical venlaon (NIV or invasive venlaon)
sures within the framework      9 Vasopressive therapy and extended shock therapy
of the treatment and care
of patients with a SARS-        9 Anbioc therapy
CoV-2 infection: https://
www.rki.de/DE/Content/          An indicaon for intensified therapy and close monitoring exists, if ≥3 of 9 of the modified IDSA/ATS minor
InfAZ/N/Neuartiges_             criteria are met (increased risk for decompensaon requiring ICU):
Coronavirus/Hygiene.html.
CAP community-acquired            o PaO2 ≤55 mmHg in room air or PaO2/FIO2 -rao ≤250
pneumonia, UD underlying          o Respiratory rate ≥30/min
disease, IDSA/ATS Infec-          o Mullobar infiltrates in the chest x-ray
tious Diseases Society of
                                  o Newly developed disturbance of consciousness
America/American Thoracic
Society, NIV non-invasive         o Systolic blood pressure
main topic

general more sensitive than those from nasopharyn-                 are available and that these drugs should be further
geal smears [57]; however, for reasons of hygiene nei-             tested in RCTs. Nevertheless, the FDA has approved
ther sputum induction nor diagnostic bronchoscopy                  the use of chloroquine and hydroxychloroquine for
should be solely performed for confirming COVID-19.                hospitalized COVID-19 patients (body weight >50 kg)
In intubated patients with an initially negative PCR               outside of studies. For remdesevir, the FDA deci-
from the upper respiratory tract, further PCR testing              sion was based on unpublished topline data from
in a lower respiratory tract specimen (e.g. tracheal se-           a randomized, double-blind, placebo-controlled trial
cretions via closed suction system) is recommended.                (NCT04280705) and from another open-label trial
This increases the diagnostic sensitivity and reduces              (NCT04292899). At present, the European Medicines
the false negative test rate [58, 59].                             Agency (EMA) has not granted approval for chloro-
    A chest x-ray is neither sufficiently sensitive nor            quine, hydroxychloroquine, remdesivir or any other
precise enough for the diagnosis of SARS-CoV-2 CAP;                specific SARS-CoV-2 therapy or vaccination.
however, if the clinical signs and symptoms are spe-
cific and the PCR result is positive, x-ray findings typ-          Systemic steroids
ical for COVID-19 (bilateral mostly ground glass-like              With a few exceptions, a large number of studies
peripheral and basal consolidations) are sufficient.               and meta-analyses showed no benefit and even an
    In justified cases (as mentioned), severe cases, or            increased fatality rate for systemic steroids in svCAP
for better differentiation of alternative diagnoses or             or viral acute respiratory distress syndrome (vARDS)
complications, a chest CT scan is indicated [60]. Typ-             [66–68]. Accordingly, the routine use of systemic
ical COVID-19 chest CT findings are bilateral, mul-                steroids for the treatment of svCAP/vARDS includ-
tifocal, peripheral/subpleural and dorsobasal ground               ing COVID-19 is not recommended [62]; however, in
glass opacities with or without consolidations. In the             exceptional circumstances, systemic steroids may be
course of the disease, consolidation areas may in-                 considered in cases of viral CAP:
crease and a crazy paving pattern may occur. Sensitiv-                According to the septicemia guidelines, hydrocorti-
ity, specificity, negative and positive predictive values              sone is indicated for refractory shock with massive
of chest CT scans were described in a larger study                     hemodynamic instability [69, 70].
as 97%, 25%, 65% and 83%, respectively [61]. Thus,                    Severe COPD exacerbation: 0.5 mg prednisolone/
SARS-CoV-2 CAP can be detected sensitively by chest                    kg/day for 5–7 days, then stop.
CT, but the radiological changes may also result from                 Severe asthma exacerbation: 0.5 mg prednisolone/
other infections or diseases, or complications.                        kg/day for a maximum of 7 days, then slowly taper-
                                                                       ing over a further 7 days.
Specific SARS-CoV-2 CAP therapy                                       In the course of svCAP, systemic steroids may be
In general, treatment of a SARS-CoV-2 CAP, as of                       considered in suspected individual cases of or-
another bacterial or viral pneumonia, should follow                    ganizing pneumonia, postpneumonic interstitial
relevant guidelines (see above). Currently, there is                   pneumonia, hemophagocytic lymphohistiocytosis,
broad discussion about antiviral and anti-inflamma-                    or exacerbation of pre-existing pulmonary fibrosis.
tory treatment approaches that have yet to be suf-
ficiently validated (remdesivir, chloroquine, hydrox-              Respiratory intensive care
ychloroquine, tocilizumab, recombinant angiotensin                 Patients requiring intensive care and ventilation
converting enzyme 2 and others). They should there-                should be treated according to generally accepted
fore not be used as standard therapy in clinical rou-              national and international recommendations. Thus,
tine. According to the WHO recommendations, their                  for the usually predominant severe oxygenation dis-
efficacy, safety and tolerability should first be tested           order, an escalation from a ventilation mask with
in clinical trials, preferably randomized controlled               reservoir (non-rebreather mask) via high-flow nasal
trials (RCT) [62, 63]. Until results from RCTs are                 oxygenation (HFNO) to non-invasive ventilation (NIV)
available, experimental therapies outside clinical tri-            is recommended. In all international recommenda-
als must be extremely well justified and considered                tions, special focus is placed on the protection of the
solely in selected individual cases (compassionate                 practitioner, in particular during measures such as
use). They should not be used uncritically, potentially            intubation, NIV, HFNO, bronchoscopy or nebuliza-
harmful side effects must be considered and wherever               tion [69, 71, 72]. Aerosol production is probably not
possible, their application should be documented in                significantly increased with oxygen therapy, HFNO,
registers [64].                                                    nebulization and NIV with non-vented systems, and
   On 28 March 2020, the U.S. Food and Drug Ad-                    a significantly increased risk for personnel is presently
ministration (FDA) issued an emergency use autho-                  not assumed. In contrast, an increased risk for per-
rization for chloroquine/hydroxychloroquine, and                   sonnel has been shown for intubation, bronchoscopy,
on 1 May 2020 for remdesivir for the treatment of                  endotracheal aspiration and the use of vented sys-
COVID-19 [65]. The FDA points out that only in                     tems, or in the absence of a virus filter in the expi-
vitro or anecdotal clinical data and case series on                ratory part of ventilation systems. A recent COVID-
the efficacy of chloroquine and hydroxychloroquine                 19 position paper of the German Respiratory Society

  Management of patients with SARS-CoV-2 infections and of patients with chronic lung diseases during the. . .    K
main topic

provided a good overview of aerosol production and                cruitment maneuvers and deterioration when exces-
the resultant risk for practitioners [73].                        sively high positive end-expiratory pressure (PEEP) is
   If available, HFNO and NIV of COVID-19 patients                used (>10 cm H2O). The frequent severe oxygenation
should be performed in negative pressure rooms.                   impairment is primarily due to vasoplegia with an
In clinical practice, however, the number of nega-                altered ventilation-perfusion ratio and microthrom-
tive pressure rooms is limited in Austria, and HFNO               botic events.
and NIV are also acceptable in other facilities; how-                In the L-type, O2/HFNO application, NIV or inva-
ever, personal protection measures must be strictly               sive ventilation with lower PEEP (6–10 cm H2O) and
adhered to.                                                       prone positioning are usually effective. Higher tidal
   Since aerosol formation increases with augmented               volumes are well tolerated without lung injury (venti-
HFNO flow rate, the flow rate should be set as low as             lator induced lung injury, VILI).
possible and an oronasal mask (FFP1 mask) should be                  The H-type (high elastance) is characterized by
applied to the patient’s face to reduce aerosol release.          poor compliance (15 cm H2O),
delay.                                                            but frequently low plateau pressures is useful. It can
   Irrespective of the type of ventilation, the use of            be assumed that COVID-19 ARDS patients also benefit
a respirator with a double-hose system and bacteria/              significantly from prone positioning according to the
virus filter at the expiratory section of the breathing           ProSEVA protocol [62, 75]. Recruitment maneuvers
circuit is recommended. Ventilation with a single-                (Lachmann maneuvers) can also be tried in patients
hose system and vented systems should be avoided                  with the H-type [76].
due to aerosol formation. Ventilators for home venti-                A transition from the L-type to the H-type is pos-
lation, including obstructive sleep apnoea syndrome               sible and may be recognized early due to increased
(OSAS) therapy, should therefore not be used in the in-           breathing effort (esophageal manometry, change in
patient setting for SARS-CoV-2 positive patients, but             CVP, assessment of the work of breathing).
should be replaced by suitable ventilators, or an ap-                According to present experience and autopsy re-
propriate mask construction with a filter at the expira-          ports, euvolemia is recommended because overhydra-
tory valve. Air humidifiers of home ventilators should            tion disproportionately worsens the respiratory situa-
not be used [74]. If only ventilators with a single-              tion.
hose system and distal flow measurement are avail-                   To date, there is no substantial evidence for the ap-
able, a filter must be installed at the patient side, with        plication of the aforementioned experimental COVID-
the resultant increase in airway resistance to be taken           19 therapies for patients in intensive care. Based on
into account. If a continuous positive airway pressure            the principle primum nil nocere, the use of insuffi-
(CPAP) helmet is used, a filter must be attached to the           ciently validated and unapproved medications is only
expiratory part.                                                  recommended in clinical trials, or in compassionate
   For intubation, video laryngoscopy and rapid se-               use programs. Moreover, potential side effects and
quence induction with full relaxation are recom-                  possible interactions with standard intensive care
mended to prevent aerosol formation, possible cough-              medication have to be considered [77]. Equally, the
ing of the patient and close proximity of the airway              evidence for efficacy of a supportive therapy with
operator to the patient’s head. Nebulization should be            zinc, ascorbic acid or selenium is also insufficient.
avoided in favor of the use of metered dose inhalers.                The WHO guidelines for the treatment of COVID-
   According to the severity of the oxygenation impair-           19 incorporate the subject of intensive care and we
ment, intubation and invasive ventilation are often               recommend the regular updates to be followed and
recommended for an oxygenation index (PaO2/FiO2)                  accounted for [62].
≤200 [72]. Whether in such a case NIV is still feasi-                Microcirculatory disturbances on a thrombotic
ble as an alternative has to be individually assessed             basis are assumed, and after a risk-benefit analy-
for each patient. Depending on the underlying pul-                sis a pharmacologic thrombosis prophylaxis is also
monary disease and the clinical condition, with spe-              indicated for the frequently occurring (moderate)
cial regard to the load of the respiratory muscles,               thrombocytopenia [78, 79].
the cooperation of the patient, strict protective mea-               As occurs during other serious infections, COVID-
sures for the medical staff, and the user’s experience            19 ARDS patients may develop a form of secondary
with NIV are particularly important. In the presence              hemophagocytic lymphohistiocytosis (sHLH). There-
of ARDS and no improvement with NIV, intubation                   fore, a close watch must be kept for signs of a massive
should not be delayed.                                            hyperinflammatory response. Specific and adequately
   Two phenotypes of COVID-19 lung disease are dis-               evaluated diagnostic criteria for COVID-19 sHLH are
tinguished (Fig. 4): the L-type (low elastance) is char-          not yet available [80, 81]. Diagnosis and classification
acterized by good compliance, a poor response to re-              of sHLH so far have been based on the practice-ori-

K                  Management of patients with SARS-CoV-2 infections and of patients with chronic lung diseases during the. . .
main topic

                                                                COVID-19 with SpO260 mmHg
• pH >7.35
• Clinical improvement

 a
  Special consideraons for NIV: Protecve staff clothing! Tight-fing masks! Double-hose system with bacteria/virus filter! When using single-hose
 systems, place filters at the proximal end close to the paent! Helmets only for isolated oxygenaon impairment and with a double-hose system.

Fig. 4   Guidance for the respiratory management of severe SARS-CoV-2 CAP

ented and evaluated HScore [82, 83]. A freely available                          NIV and aerosol therapy, this therapy increases virus
calculator can be found at http://saintantoine.aphp.                             transmission to the environment. In this case, an in-
fr/score/. There is no gold standard for the therapy                             dividual risk-benefit assessment must be performed;
of sHLH; the current evidence is based on case se-                               however, if possible, PAP should be continued under
ries, and RCTs have yet to be conducted. As with                                 strict hygiene and isolation measures. According to
other non-COVID-19 associated sHLH, in individual                                current evidence, PAP does not exacerbate COVID 19
cases especially systemic corticosteroids, but also cy-                          infections. When single-hose systems and vented
closporine, intravenous immunoglobulins, anakinra,                               masks have been used so far, for the protection of
tocilizumab or other therapies may be considered                                 the practitioner it is recommended to not use air hu-
[84].                                                                            midifiers if possible and change to non-vented masks
                                                                                 with a special exhalation valve and filter. If avail-
Aerosol therapy                                                                  able, switching to a two-hose system is an alternative
During any form of inhalation or respiratory sup-                                option.
port therapy (nebulization, O2 via nasal cannula/
mask, HFNO, NIV), aerosol formation and thus an                                  Bronchoscopy in COVID-19 patients
increased risk of infection for healthcare profession-                           Bronchoscopy is not recommended for the exclusion
als and patients must be expected (see also section                              or verification of COVID-19 (lack of therapeutic con-
on “Cardiorespiratory physiotherapy”) [85]. These                                sequence, unnecessary risk for personnel, and possi-
treatment forms should only be used if indicated, and                            ble risk of clinical deterioration due to bronchoscopy);
in view of the possible risk of contamination of the                             however, in exceptional situations, bronchoscopy may
surroundings by aerosols should either be applied                                be indicated in confirmed or suspected COVID-19 pa-
in a relatively restrictive manner or even avoided.                              tients (e.g. in immunosuppressed patients to exclude
Preferably, bronchodilators or corticosteroids should                            Pneumocystis pneumonia).
be inhaled with dry powder inhalers or (also with NIV                               Bronchoscopy involves the risk of aerosol forma-
or invasive ventilation) metered dose inhalers [86].                             tion and thus a significantly increased risk of SARS-
   For further details see the sections on “Respiratory                          CoV-2 infection for personnel present during the pro-
intensive care” and “Cardiorespiratory physiotherapy”.                           cedure. Bronchoscopy in intubated patients probably
                                                                                 has a lower transmission risk.
Hospitalized COVID-19 patients with sleep-related                                   In accordance with international recommenda-
breathing disorders                                                              tions, if SARS-CoV-2 infection is suspected or con-
If a patient treated with positive airway pressure                               firmed, the following should be considered during the
(PAP) for a sleep-related breathing disorder devel-                              COVID-19 pandemic [87–89]:
ops COVID-19, it may be assumed that analogous to

   Management of patients with SARS-CoV-2 infections and of patients with chronic lung diseases during the. . .                               K
main topic

Fig. 5 Guidance on limi-
                               Resources for the medical care of seriously ill paents are sll largely available:
tations/withdrawal of ther-
                               • Decisions on medical care are generally made on the basis of the individual needs of each paent (paent-
apy (DNE, DNI, DNR etc.)         oriented)
during the COVID-19 pan-       • Intensive care is principally not indicated (applies generally without a pandemic situaon), if
demic. DNE do not esca-           9 the dying process has begun irreversibly,
late, DNI do not intubate,        9 from a medical point of view therapy is hopeless (no improvement or stabilisaon to be expected),
DNR do not resuscitate            9 survival would be linked to a permanent stay on an ICU,
                                  9 the paent refuses intensive care.

                               If resources are increasingly exhausted, disaster medicine aspects have to be considered:
                               • Priorisaon takes place due to the obligaon to enable as many paents as possible to benefit from medical
                                   care with the resources available
                               • Priorisaon is based on the criterion of clinical success (who has the higher probability of survival, or a beer
                                   overall prognosis)
                               • Priorisaon is not jusfiable due to the principle of equality only within the COVID-19 paent group
                               • The mulple eye principle is applied in decision making (if possible, two experienced physicians and one
                                   representave of the nursing staff)

                               See also:
                               •   Österreichische Gesellscha für Anästhesiologie, Reanimaon und Intensivmedizin: hps://www.anaesthesie.news/wp-
                                   content/uploads/gari_checkliste_triage_icu_final_26.3.2020.pdf und hps://www.anaesthesie.news/wp-content/uploads/gari_sop_triage_covid-
                                   19_arge_ethik_final_26.3.2020.pdf
                               •   Deutsche Interdisziplinäre Vereinigung für Intensiv- und No allmedizin u.a.: hps://pneumologie.de/fileadmin/user_upload/Aktuelles/2020-03-
                                   25_COVID-19_Ethik_Empfehlung_Endfassung_2020-03-25.pdf
                               •   Naonal Instute for Clinical Excellence: hps://www.eugms.org/fileadmin/user_upload/NICE_crical-care-admission-algorithm-pdf-8708948893.pdf
                               •   Österreichische Palliavgesellscha:
                                   hps://www.palliav.at/index.php?eID=tx_securedownloads&p=17&u=0&g=0&t=1588259787&hash=2327ddccbb3591eacb289a5f33267eb2eedca37c&fil
                                   e=/fileadmin/redakteur/images/news/OPG.DokumentCOVID19.final.2020.03.20.pdf

   Extremely restrictive indications for a bronchoscopy.                          Routine bronchoscopies in non-COVID-19 patients
   Primary use of other sensitive diagnostic proce-                               (e.g. for the evaluation of pulmonary nodules/lesions
    dures (e.g. obtaining tracheal secretions via a closed                         or interstitial lung diseases) should only be performed
    suction system for microbiological testing including                           during the current pandemic if strictly indicated, with
    SARS-CoV-2 PCR).                                                               increased personal protection measures (including
   Bronchoscopy is indicated in emergency situations                              the use of FFP2 or FFP3 masks) and strict adherence
    (e.g. life-threatening hemoptoe, high-grade airway                             to hygiene protocols.
    stenosis, or foreign body aspiration), or if an alter-
    native diagnosis can be verified, which would lead                             Therapeutic goals, treatment limitations and withdrawal
    to a significant change in therapeutic management.                             of treatment in COVID-19 patients
   Reduction of staff (bronchoscopist, bronchoscopy                               The ethical principles of intensive and palliative care
    assistance, if necessary an anesthesia team) to                                apply equally to COVID-19 patients. Since in sev-
    a core team. No students, basic or advanced trainees                           eral countries even increased intensive care resources
    in the bronchoscopy suite.                                                     have been completely exhausted, guidelines for the
   Strict personal protection for the entire team (dis-                           allocation of intensive care beds, triage and palliative
    posable protective gown, disposable gloves, FFP3                               care have been established in Austria [90, 91]. Based
    mask, protective glasses/visor, hair protection).                              on the patient’s present state of health and the sever-
    Strict attention to correctly putting on and taking                            ity of the infection and respect for the will of the pa-
    off protective clothing.                                                       tient, capacities should be kept available for patients
   If justifiable, rigid bronchoscopies with jet venti-                           for whom a higher probability of survival is predicted
    lation should not be performed; however, should                                [92]. Not only is this a difficult undertaking due to
    a rigid bronchoscopy be unavoidable, it should be                              the lack of validated predictive scores for COVID-19,
    performed in an intubated patient with conven-                                 but it also ignores the problem that patients without
    tional ventilation and reduced aerosol escape, e.g.                            SARS-CoV-2 infection, or those with clinically silent
    using a FLUVOG attachment (KARL STORZ SE & Co.                                 infection, may require intensive care for other reasons
    KG, Tuttlingen, Germany).                                                      (e.g. COPD exacerbation, myocardial infarction, poly-
   Bronchial lavage should be performed as fraction-                              trauma, etc.) (Fig. 5). The German and British pro-
    ated procedure (10 ml NaCl 0.9% for each fraction;                             fessional societies have developed recommendations
    to reduce the transmission risk, the suction device                            regarding clinical-ethical decision-making [93, 94].
    should be clamped after sampling or before discon-
    nection).
   Bronchoscopes are to be cleaned and disinfected in
    a validated manner; there is no evidence that these
    processes have to be changed for SARS-CoV-2.

K                   Management of patients with SARS-CoV-2 infections and of patients with chronic lung diseases during the. . .
main topic

Fig. 6 Patient information:
                                  The following measures are recommended to all paents with comorbidies and certain paents with chronic
preventive measures to pro-
                                  lung diseases to prevent infecons, or in the case of an infecon, to reduce the risk of a severe course of the
hibit COVID-19 and/or a se-       disease:
vere course of the disease
(recommendations for pa-          9 Adherence to recommended hygiene measures and restricon of social contacts for chronically ill paents (see
tients with underlying dis-         RKI recommendaons regarding hygiene measures within the framework of the treatment and care of paents
eases)                              with a SARS-CoV-2 infecon: hps://www.rki.de/DE/Content/InfAZ/N/Neuarges_Coronavirus/Hygiene.html)
                                  9 In the case of symptoms of an infecon contact with the health care system in due me (see figure 1)
                                  9 Connuaon of the previous treatment of the chronic lung disease (no disconnuaon of medicaon due to
                                    fears regarding SARS-CoV-2, confer with physician)
                                  9 Cessaon of smoking
                                  9 Connuaon of physical acvies in order to prohibit muscular decondioning
                                  9 Compleon of the vaccinaon status with regard to pneumococcus at the next opportunity
                                  9 As from November, vaccinaon against influenza

General management of patients with chronic                                  –   FEV1
main topic

reslizumab, benralizumab, and dupilumab) should                  porarily worsen the respiratory symptoms of patients
also remain unchanged. According to present knowl-               with chronic lung diseases, but the patients usually
edge a negative influence on the immune defence                  recover without consequences, including a complete
against SARS-CoV-2 is not expected from these bio-               recovery of lung function.
logicals, but from oral corticosteroids (the therapeutic
alternative).                                                    Lung cancer
   Under no circumstances should the drugs be dis-
continued on the assumption that they could impair               There is currently no evidence to suggest that discon-
the immune system; a well-controlled asthma is the               tinuing or interrupting anti-tumor therapy, such as
best provision for a mild course of a SARS-CoV-2 in-             chemotherapy and/or immunotherapy is necessary.
fection. In addition, patients with asthma should pay            Diagnosis and therapy should be continued according
close attention to any marked changes in their symp-             to current standards; however, an individual decision
toms, especially to a sudden increase in breathless-             should always be reached between the physician and
ness and newly occurring cough and fever. While                  the patient. For further details we suggest consulting
shortness of breath and cough are common in pa-                  the current ASCO, ESMO and DGHO/ÖGHO recom-
tients with asthma, fever may possibly indicate an               mendations [96–98].
infection and should be taken seriously and further
assessed.                                                        Cystic fibrosis (CF)

COPD                                                             Adult CF patients are at risk of a possibly severe dis-
COPD patients should also adhere strictly to their               ease course with SARS-CoV-2 infection. Apart from
regular therapy in order to prevent exacerbations.               adherence to the generally valid prevention measures
If in the current situation an exacerbation occurs               (hand hygiene, social distancing) adult CF patients
and requires medical consultation or hospitalization             should stay at home and not seek social contacts in
(Fig. 1), patients cannot follow the most important              professional or other types of social environment.
recommendations for the prevention of a SARS-CoV-2               Third parties should undertake shopping for food and
infection, namely staying at home and keeping at                 supplies of medications or respiratory physiotherapy
a distance to other people. In general, regularly ap-            devices and the purchases should be placed in front
plied medication contributes to good disease control             of the door.
and this also applies to COPD; thus, a high degree                  Furthermore, with respect to routine appointments
of adherence to therapy is of advantage especially in            in outpatient clinics, contact should be made with the
this pandemic. Dyspnea and cough are typical COPD                respective center in order to clarify which examina-
signs and symptoms; a sudden worsening of dysp-                  tions can be postponed, and which outpatient visits
nea and increased body temperature should prompt                 might take place under special conditions in the re-
suspicion of SARS-CoV-2 infection in these patients              spective unit, or whether in individual cases the visit
(Fig. 1); however, fever could also be due to a COPD             can be replaced by telephone consultations and in-
exacerbation. While systemic corticosteroids are cur-            structions.
rently not recommended for COVID-19, their use for                  The CF centers are making every effort to suspend
the treatment of a common COPD exacerbation is                   outpatient visits that are not absolutely necessary
justified.                                                       as long as this does not cause disadvantages for the
                                                                 patients. The usual therapeutic measures such as
Asthma and COPD patients with probable or confirmed              chest physiotherapy, medical, and nutritional therapy
SARS-CoV-2 infection                                             should be continued in a particularly careful man-
Patients with chronic respiratory diseases and a SARS-           ner. In the case of clinical deterioration, signified by
CoV-2 infection have an equal chance of a mild                   fever and increased cough with or without respiratory
course of the disease that can be treated in domes-              distress, it is advisable to contact the responsible CF
tic isolation. High grade fever should be avoided,               centre by telephone, especially if a visit to the center
and sufficient hydration is recommended. Even in                 has already been scheduled.
stable phases of their disease, many COPD patients                  Clearly indicated inpatient i.v. antibiotic treatment
control oxygen saturation independently with finger              courses should be administered in any case. If inpa-
pulse oximetry. If the oxygen saturation falls below the         tient treatment of a SARS-CoV-2 infection is necessary,
usual range, medical care should be sought. If it is not         a tailored antibiotic therapy adapted to the respective
possible to control oxygen saturation at home, breath-           microbial spectrum will be initiated.
ing should be closely monitored. If dyspnea at rest                 A recently published article reported on ten SARS-
or during minimal physical activity increases, med-              CoV-2 infected CF patients in Lombardy (out of a to-
ical care should be sought. Asthma patients should               tal of 42,161 infected people in Lombardy and 101,739
document their symptoms and peak flow values in                  in Italy on 31 March 2020). In each case, the in-
the usual manner. Marked changes require medical                 fection had been transmitted by a family member.
attention. Generally speaking, COVID-19 can tem-                 In addition, five patients were reported from France,

K                 Management of patients with SARS-CoV-2 infections and of patients with chronic lung diseases during the. . .
main topic

seven from the UK, five from Germany and three (in-                Pulmonary hypertension
cluding one transplantation patient) from Spain (all
of them adults) [99]. In this limited number of pa-                Patients with pulmonary hypertension, and in partic-
tients, the SARS-CoV-2 infection did not lead to a no-             ular pulmonary arterial hypertension (PAH), belong
ticeable worsening of the underlying disease. The                  to the risk patient group; however, there are no data
CF centers are encouraged to report patients infected              on the clinical course of COVID-19 in patients with
with SARS-CoV-2 to the European CF registry (ser-                  PAH. We are also unaware of any recent publications
vicedesk@ecfregistry.eu).                                          that have investigated specific correlations between
                                                                   this viral disease and pulmonary vascular disease.
Interstitial lung diseases                                            As with other lung diseases, infection prevention
                                                                   is of general importance in patients with PAH. De-
Due to structural lung changes, immunosuppressive                  pending on the severity of the underlying disease,
therapy, diffusion impairment with a frequently ex-                even mild respiratory infections have been reported
isting need for supplemental oxygen and advanced                   to cause a temporary increase in the pressure load of
age, patients with interstitial lung disease (ILD) are             the right heart up to clinical decompensation. A pneu-
a COVID-19 risk group. In order to minimize the risk               monia caused by SARS-CoV-2 leads to a deterioration
of infection, ILD patients should adhere rigorously to             of oxygenation, and the accompanying local and sys-
social distancing and other recommended protective                 temic inflammatory reactions also suggest the possi-
measures. Support from family members, neighbors                   bility of a worsening of the right ventricular function.
and aid organizations with respect to the organiza-                In an autopsy study, an accumulation of marked right
tion of supplies of food and medication is essential,              ventricular dilatation in deceased COVID-19 patients
although at the same time direct contact with people               was described [100].
not living in the same household should be strictly                   As a consequence, the officially recommended
avoided.                                                           measures for social distancing appear to be of signifi-
    Scheduling of appointments in ILD outpatient clin-             cant importance for patients with pulmonary vascular
ics should be optimized in order to avoid long wait-               diseases; however, this should not result in delayed
ing times and patient crowding. With written consent               diagnostics. Suspected cases of acute pulmonary em-
and by means of technical support, alternatives such               bolism should continue to be assessed and treated
as video chats can be considered for routine follow-               according to guidelines as soon as possible in or-
ups. To minimize direct contact between physicians                 der that patients with a potentially fatal acute illness
and thus the risk of infection transmission, alternative           are not harmed. Patients with suspected severe pul-
(e.g. digital) forms of communication should also be               monary hypertension should also be subjected to
considered for multidisciplinary case discussions (ILD             examinations including right heart catheterization
boards).                                                           without delay and treatment should be initiated in
    For a timely diagnosis of a SARS-CoV-2 infection,              accordance with the guidelines.
it is necessary to perform PCR testing as soon as new                 Patients with PAH therapy should adhere to the
signs and/or symptoms of illness develop. This allows              generally recommended hygiene and other measures
the early detection of other causes of the symptoms                and, if there are signs and/or symptoms of a SARS-
or an acute exacerbation and appropriate treatment                 CoV-2 infection, depending on the severity of the
can be initiated without delay.                                    symptoms, they should contact their general practi-
    Many ILD patients are treated with immunosup-                  tioner, consultant or specialist at the centre and start
pressive agents. Thus, in the case of a viral infection            antibiotic therapy early.
more severe disease courses can be expected. Antifi-                  The need for a regular outpatient visit at the PAH
brotic therapy in fibrosing ILD and immunosuppres-                 centre should be assessed on an individual basis. Pa-
sive therapy in inflammatory ILD should be continued               tients should take precautionary measures with regard
in ILD patients, who are not suffering from COVID-19,              to their specific PAH medication (supplies for at least
in order not to risk ILD exacerbation. If a SARS-CoV-2             8 weeks) and, if necessary, in the case of supply short-
infection is confirmed, an individual assessment must              ages duly contact the PAH centre. Close telephone
be made as to whether immunosuppressive therapy                    contacts with patients are recommended and should
should be reduced or temporarily discontinued.                     be practiced by the centers.
    Treatment of patients with advanced ILD and
COVID-19 is likely to generate ethical concerns and                Pulmonary rehabilitation and smoking cessation
difficult therapeutic decisions may be required. An                therapy
open discussion of the issues with patients and their
families and the definition of treatment goals may                 The Pension Insurance Fund (Pensionsversicherungs-
be necessary. For patients with advanced ILD and                   anstalt, PVA) is classified as being part of the criti-
COVID-19, palliative measures should also be consid-               cal infrastructure of Austria. It is legally obliged to
ered.                                                              maintain services and in particular those of its own
                                                                   rehabilitation centers. In the health service area, the

  Management of patients with SARS-CoV-2 infections and of patients with chronic lung diseases during the. . .   K
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