Efficacy of hydrocortisone acetate/hyaluronidase vs triamcinolone acetonide/hyaluronidase in the treatment of oral submucous fibrosis

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Efficacy of hydrocortisone acetate/hyaluronidase vs triamcinolone acetonide/hyaluronidase in the treatment of oral submucous fibrosis
Indian J Med Res 131, May 2010, pp 665-669

Efficacy of hydrocortisone acetate/hyaluronidase vs triamcinolone
acetonide/hyaluronidase in the treatment of oral submucous fibrosis

Mangal Singh, H.S. Niranjan, Ravi Mehrotra*, Devashish Sharma** & S.C. Gupta

Departments of E.N.T. & Head & Neck Surgery, *Pathology &** Statistics & Demography, M.L.N. Medical
University College & S.R.N. Hospital, Allahabad, India

Received June 30, 2008

              Background & objective: Oral submucous fibrosis is a common premalignant condition caused by
              chewing arecanut and other irritants in various forms. Its medical treatment is not yet fully standardized,
              although the optimal doses of its medical treatment is in the form of hydrocortisone acetate combined
              with hyaluronidase. The problem with the prevailing treatment was injections at weekly interval. In this
              study we compared the efficacy of hydrocortisone acetate and hyaluronidase at weekly interval versus
              triamcinolone acetonide and hyaluronidase at 15 days interval.
              Methods: Patients of OSMF (100) were randomly divided into two groups A and B. Group A patients
              received combination of hydrocortisone acetate (1.5 ml)/hyaluronidase (1500 IU) at weekly interval
              submucosally in pterygomandibular raphe, half dose on each side for 22 wk. Group B patients received
              combination of triamcinolone acetonide (10 mg/ml)/ hyaluronidase (1500 IU) at 15 days interval for 22
              wk. Treatment outcome was evaluated on the basis of improvement in symptom score, sign score and
              histopathological improvement. Student’s ‘t’ test was applied for comparing the results.
              Results: No statistically significant difference in symptom score, sign score and histopathological
              improvement was seen between the two groups.
              Interpretation & conclusion: Treatment regimen of group B was more convenient to the patients because
              less number of visits required and cheap. No side effects were seen. A follow up study is required to see
              long term effects.

Key words Hyaluronidase - hydrocortisone acetate - oral submucous fibrosis - tiamcinolone acetonide

     Oral submucous fibrosis (OSMF) is a chronic                       confined to South East Asian countries especially in the
debilitating and a well recognized potentially malignant               Indian subcontinent. Pathogenesis is not yet established
condition of oral cavity associated with arecanut                      but it is believed to be due to multifactorial causes. The
chewing characterized by generalized fibrosis of oral                  disease initially presents as burning sensation in oral
soft tissue resulting in marked rigidity and progressive               cavity. It is clinically divided into three stages4. In stage
inability to open the mouth1-3. This disease is mainly                 1 there is stomatitis, erythematous mucosa, vesicles,

                                                                 665
Efficacy of hydrocortisone acetate/hyaluronidase vs triamcinolone acetonide/hyaluronidase in the treatment of oral submucous fibrosis
666                                             INDIAN J MED RES, may 2010

mucosal ulcers, melanotic mucosal pigmentation and               oropharynx, partial or complete inability to protrude
mucosal petechiae. In stage 2, fibrosis occurs in ruptured       out the tongue (ankyloglossia) with or without reduced
vesicles and ulcers when they heal. There is blanching           mouth opening (trismus). After diagnosis staging
of oral mucosa. Vertical and circular palpable fibrotic          was done according to the criteria of Pindborg 1989­4.
bands are seen in buccal mucosa. Specific findings               Patients of stage II OSMF having trismus were included
include trismus, stiff and small tongue, blanched and            in this study. Stage I and III were excluded. Trismus
leathery floor of mouth, fibrotic and depigmented                was defined as mouth opening less than normal. Normal
gingiva, rubbery soft palate with decreased mobility,            mouth opening was interincisor distance of 5.25 cm in
blanched and atrophic tonsils, shrunken band like                males and 4.75 cm in females as measured by a caliper.
uvula and sinking of cheek not commensurate with age             All patients were properly explained about the study
or nutritional status. In stage 3 there are sequelae in          and their consent was taken. The study was cleared by
the form of leukoplakia in about 25 per cent of cases,           Institutional Review Board.
speech and hearing deficits because of involvement of
tongue, palate and eustachian tubes5,6.                               The symptoms and signs were noted on a working
                                                                 proforma. Scoring of symptoms like burning sensation
      Most important aspect of medical treatment is              in mouth upon consumption of spicy or hot foods and
cessation of habit of eating betel quid, arecanut, other local   repeated vesicles or ulcer formation was done according
irritants, spicy and hot food, alcohol and smoking. The          to verbal complaint rating scale of 0-10 points, where 0
most common mode of medical treatment had been the               means no symptom and 10 means severe most symptom
use of steroids in its various forms7-11. Used other methods     as perceived by the patient subjectively and signs were
include injection of placental extract12, use of trypsin,        scored from 0 to 10 points according to a new criteria.
collagenase, hyaluronidase and elastase13 and intralesional      Trismus was scored as 0 means no trismus where
Interferon-γ (IFN-γ)14. Oral zinc has been used15 as also oral   interincisor distance was 5.25 cm or more in males
pentoxiphylline16 and lycopene with varying benefits17.          and 4.75 cm or more in females, scored as 2 or grade I
     Local injection of hyaluronidase mixed with                 where interincisor distance was more than 3 cm but less
hydrocortisone acetate had been used at our centre for the       than normal, scored as 5 or grade III where interincisor
last 20 ys with satisfactory clinical results and without any    distance was 2-3 cm and scored as 10 where interincisor
significant side effects. The problem with the treatment         distance was less than 2 cm. Ankyloglossia was scored
was that the doses and duration of treatment had not been        as 5 when protrusion of tongue was partial and scored
standardized. In a previous study, the treatment regimen         10 when there was inability to protrude out the tongue.
was standardized with patients of OSMF with trismus              Vesicles or ulcers in oral cavity were scored 1 when
be treated by 1.5 ml (37.5 mg) hydrocortisone acetate            there were unilateral single, scored 2 when bilateral
mixed with 1500 IU of hyaluronidase injection given              single, scored 3 when unilateral multiple and scored 4
intralesionally half dose on each side at weekly interval        when bilateral multiple. Areas of fibrosis were scored
for 22 wk18. The problem with prevailing treatment was           2 for each area – soft palate including uvula, right or
injection at weekly interval. So, this study was planned         left anterior faucial pillar including tonsil, right or left
to see the efficacy of this treatment as compared to             buccal mucosa including gingivobuccal sulcus, right or
triamcinolone acetonide (10 mg/ml) combined with                 left retromolar trigone, tongue or floor of mouth.
hyaluronidase (1500 IU) intralesionally once in 15 days              The pretreatment histopathological examination of
for a total of 11 injections.                                    the biopsy specimen from cheek mucosa was done in
                  Material & Methods                             each case and histopathological staging of OSMF was
                                                                 done according to Pindborg and Sirsat criteria19.
    This prospective randomized single blinded
outcome based study was done on 100 cases of                         All the four histopathological stages viz., very
clinically diagnosed oral submucous fibrosis done                early, early, moderately advanced and advanced
during 2005-2006. Clinical diagnosis of OSMF was                 stage were given scores of 1, 2, 3 and 4 respectively.
based on symptom of burning sensation in mouth                   Patients were randomly divided into group A and B
upon consumption of spicy or hot foods, repeated                 according to a lottery system by keeping a mixture
vesiculation or ulceration in oral cavity and signs              of 50 chits each of group ‘A’ and group ‘B’. Patients
observed were vesicles/ulcers in oral cavity, areas of           were asked to pick up one chit and his treatment
fibrosis in vestibule of mouth, oral cavity proper and           group was decided. Patients of group ‘A’ (n=50) were
Efficacy of hydrocortisone acetate/hyaluronidase vs triamcinolone acetonide/hyaluronidase in the treatment of oral submucous fibrosis
Singh et al: EFFICACY OF HYDROCORTISONE ACETATE VS TRIAMCINOLONE ACETONIDE IN OSMF                                      667

treated by a combination of hydrocortisone acetate                     female ratio was 6.14:1. 71 per cent were in the habit of
(1.5 ml 25 mg/ml) and hyaluronidase (1500 IU) at                       using pan masala or dohra. Only 22 per cent used them
weekly interval for 22 wk and group ‘B’ were treated                   with betel quid and 7 per cent used betel quid only.
by a combination of triamcinolone acetonide, 10 mg/                    Pre-treatment histopathological staging showed most
ml and hyaluronidase (1500 IU) at 15 days interval                     patients in moderately advanced stage (55%) followed
for 22 wk, i.e. 11 injections in 22 wk. Injection in all               by early stage (43%) and advanced stage (2%).
patients were given submucosally in retromolar trigone
and adjacent soft palate and cheek, half dose on each                       All the patients who were registered were followed
side by one observer and response to treatment was                     up for 3 months after completion of treatment. There
assessed by another observer. The other clinician who                  were no dropouts. All the patients were aware of the fact
was observing response to treatment was not aware of                   that they are being treated for a pre-cancerous lesion.
the treatment group. After completion of treatment,                    There was no delay from diagnosis to commencement
repeat biopsy and histopathological examination was                    of therapy. But many patients although initially agreed
done to look for histopathological improvement. The                    for a post-treatment biopsy, refused biopsy after
histopathologist who was evaluating post-treatment                     completion of treatment.
biopsies was not aware of the treatment group.                             Table I shows pre-treatment and post-treatment
The response to treatment was assessed by noting                       symptom and sign scores, improvement in total (i.e.
subjective improvement in symptom score, objective                     symptom + sign) score and histopathological score in
improvement in sign score and histopathological score.                 group A and B. A comparison between both groups
Side effects of treatment both local as well as systemic               did not provide any statistically significant difference
e.g., weight gain, blood pressure etc., were also noted.               (P>0.05).
Period of post-treatment follow up was three months.
All the registered patients were followed up.                              Table II shows the details of change in
                                                                       histopathological stage of OSMF in both treatment
                           Results
                                                                       groups. Figs 1 and 2 show the photograph of
   Patients of OSMF were between 14-65 yr old,                         histopathology slides of a patient from group ‘A’ which
a majority in their 30 (average 34 yr). The male to                    shows change in stage from moderately advanced to

Table I. Pre treatment and post-treatment symptom and sign score, improvement in total (i.e. symptom + sign) score and histopathological
score in group ‘A’ (n=50) and  group B (n=50)  (Data are mean ± SD)
                                                                           Score
                                             Group A                                                   Group B
                     Pre-treatment        Post-treatment   Reduction in score      Pre-treatment   Post-treatment   Reduction in score
Symptoms
Burning sensation in 336.56 ± 27.16         42.48 ± 7.26     294.48 ± 15.76      328.18 ± 31.43      37.67 ± 9.11      291.04 ± 16.41
mouth upon
consumption of spicy
or hot foods
Repeated vesicle/    147.33 ± 15.58         22.49 ± 5.67     124.89 ± 15.24      149.71 ± 12.69      19.88 ± 6.42      129.27 ± 14.72
formation
in oral mucosa
Sign
trismus              304.17 ± 19.58       133.33 ± 11.48     170.42 ± 16.27      292.59 ± 17.97    127.35 ± 13.67     165.89 ± 15.11
Ankyloglossia        205.54 ± 16.67         95.47 ± 8.59     110.72 ± 17.51      195.83 ± 19.13      90.28 ± 9.81     105.67 ± 16.76
Vesicles/Ulcers        46.26 ± 5.72         11.16 ± 2.76       35.61 ± 7.24        44.52 ± 5.78      10.57 ± 2.89       33.94 ± 8.41
Fibrosis             680.59 ± 47.86       360.43 ± 27.51     320.76 ± 54.76      688.59 ± 47.46    354.73 ± 29.21     333.86 ± 61.53
Total (Symtom+sign) 1707.42 ± 77.41       659.28 ± 49.87    1049.01 ± 97.14     1695.49 ± 81.57    633.48 ± 41.56    1036.01 ± 86.95
Score
Histopathological      39.05 ± 4.89         29.43 ± 3.78         9.67 ± 1.72        40.58 ± 5.06     30.55 ± 4.78        10.23 ± 2.05
score
Comparison between mean reduction of score between Group A and Group B shows no statistical significant difference between symptoms,
sign score, improvement in total (symptom + sign) score and histopathological score (P>0.05)
Efficacy of hydrocortisone acetate/hyaluronidase vs triamcinolone acetonide/hyaluronidase in the treatment of oral submucous fibrosis
668                                                   INDIAN J MED RES, may 2010

Table II. Pre-treatment histopathological staging and post-treatment   of properly designed trials and lack of standardized
histopathological staging of both group A (n=15) and group B (n=15)    doses and duration of treatment we had standardized
Histopathological           Group A                  Group B           and recommended the treatment18. The problem with
staging                Pre-      Post-     Pre-      Post-
                                                                       this treatment was injections at weekly interval.
                    treatment treatment treatment treatment            Triamcinolone acetonide is a better corticosteroid for
Very early              0          2         0        2                intralesional injection as it has better local potency,
Early                   6         12         5        11               longer duration of action and lesser systemic absorption.
Moderately              9          1        10        2                It was hypothesized that if it will be given at 15 days
advanced                                                               interval as in the treatment of keloid and hypertrophic
Advanced                0             0          0             0       scar, then it will be convenient to the patients. However,
                                                                       there was not a single big study. Only case reports were
early stage and Figs 3 and 4 showed similar change in                  available10. We had followed a new scoring system in
group ‘B’. No local or systemic side effects were found                which each symptom, sign and histopathological stage
in either treatment groups.                                            of OSMF was given a particular score before and after
                                                                       completion of therapy. Objectivity of the study was thus
                            Discussion
                                                                       increased by observing improvement in symptom score
    Despite much progress in understanding                             and by measuring pre and post-treatment interincisor
pathogenesis9,20 treatment of OSMF in the absence                      distance with a caliper and seeing histopathological

                                                               (1)                                                               (2)

                                                               (3)                                                               (4)
Figs 1-4. Photographs of histopathology slides of a patient from group ‘A’ (Figs 1 & 2) and group ‘B’ (Figs 3 & 4) which show change in
stage from moderately advanced to early stage.
Singh et al: EFFICACY OF HYDROCORTISONE ACETATE VS TRIAMCINOLONE ACETONIDE IN OSMF                                   669

improvement. None of the previous studies had used                  5.   Khanna S. Histological changes in palatal and paratubal
this type of outcome measures. It is clear from our study                muscles in oral submucous fibrosis. MS thesis, University of
                                                                         Allahabad; 1999.
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Reprint requests: Dr Mangal Singh, Professor, Department of ENT & Head & Neck Surgery, M.L.N Medical University College &
                  S.R.N. Hospital, Allahabad 211 001, India
                  e-mail: drmangalsingh@rediffmail.com
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