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Study of 35 Cases of Hansen's Disease, which Required Treatment beyond Fixed Duration--Multi Drug Therapy.

Multi Drug Therapy (MDT) is the main weapon against leprosy since its inception in 1981. India achieved the level of elimination (< 1 case/10,000) on 31st December 2005. It has been proved in few studies that despite 2 years of regular therapy 10% of the patients continue to harbour viable persisters. There are many problems related with FD-MDT. Many cases have residual disease activity after completion of treatment. Aims of the present study was to study the profile of RFT cases in leprosy treated with FD-MDT, who required extended MDT, duration between completion of FD -MDT and clinical presentation, Acid Fast Bacilli (AFB) status, histopathology and type of leprosy at the time of presentation. A prospective study of 35 RFT (Released FromTreatment) cases with signs of activity were recruited in period betveen May 2007 to November 2001. All cases were diagnosed clinically and investigations were done for AFB smear, histopathological examination and Fite Faraco staining. We found that all the 35 cases, which required extended MDT, age group ranged from 10 to 65 years. Majority (71.4%) had taken previous Multi-Bacillary (MB) treatment for 1 year duration. Eleven (31.42%) of cases came within one year, 17 (48.57%) between one to two years and 7 (20%) cases after two years of stopping FD-MDT. AFB smear was positive in 36.84% of cases in which done. Majority of previously diagnosed MB cases presented as BT/TT in histopathology. Thus there is need to search for reliable prognostic markers for therapeutic purposes.