A hospital based epidemiological study of snakebite in Paschim Medinipur district, West Bengal, India.

Objective: Snakebite is a serious medical problem in district, West Bengal, India. In the present study, hospital based data on snakebite cases and deaths were collected from 10 blocks of the district to obtain a picture of this neglected public health issue.

Methods: Retrospective data of snakebite and deaths from 2012 to 2016 was collected from the 5 Rural hospitals (RH) and 5 Block level Primary Health Centres(BPHC) of the ten blocks of district in a prescribed format addressing issues including the demographic factors regarding the victims, seasonal pattern, history of snakebite in previous 5 years, outcome of the bite, any reporting of death.

Results: A total number of 1633 snakebites were reported in the study during the period of 2012-2016. The hospital data from the ten blocks reported 17 deaths due to snakebite in the given period. It was found that about 34% of the snake bites occurred from June to September. The age-wise distribution of snakebite cases show that majority of snakebite affected cases were within the age of 21-45 years. Males(62%) suffered more than the females(38%). The case fatality rate reported from the hospital based data was 1.04%. 60% of the snakebites occurred during morning to noon hours. The clinical manifestation of snakebite included regional edema in the affected limb, hypotension, malaise, vomiting, abdominal pain and diarrhea. The bite to hospital time was found to be 120 ± 6.5 mins(n = 750 cases) and bite to ASV injection time was found to be 270 ± 3.5 mins(n = 750 cases).

Conclusion: Snakebite is a neglected health issue in district. Lack of snakebite data is due to under reporting. In the present study we have attempted to investigate the official data available on snakebite from 10 blocks of district which has been identified for high snakebite incidence.