Demographics of animal bite victims & management practices in a tertiary care institute in Mumbai, Maharashtra, India.

Background & objectives: Rabies is an important public health problem worldwide and more than 55,000 people die annually of the disease. The King Edward Memorial Hospital, Mumbai, is a tertiary referral centre where a rabies clinic runs 24 hours. In view of lack of information about the demographics of the disease in an urban environment the present study was carried out. Methods: Data on 1000 consecutive animal bite victims presenting to the institute in 2010 were collected over a 15 wk period. An electronic database was specially created for capturing information and was modelled on the information available from the WHO expert consultation on rabies, 2005. Economic burden from the patients’ perspective was calculated using both direct and indirect costs. Results: The victims were largely males (771 subjects). The dog was the major biting animal (891, 89.1%).Bites were mainly of Category III (783, 78.3%). One twenty three subjects used indigenous treatments only for local wound care. Of the Category III bites, only 21 of 783 (2.7%) patients were prescribed human rabies immunoglobulin (HRIG) which was primarily for severe bites or bites close to or on the face. A total of 318 patients did not complete the full Essen regime of the vaccine. The median cost to the patient per bite was ` 220 (3.5 USD). Interpretation & conclusions: Our findings showed that the use of HRIG was low with less than 2 per cent of the Category III patients being prescribed it. As vaccine and HRIG continue to remain expensive, the intradermal vaccine, shorter regimes like the Zagreb regime and monoclonal antibodies may offer safer and cost-effective options in the future. Further studies need to be done in different parts of the country.

Should one vaccinate patients with chronic liver disease for hepatitis A virus in India?

BACKGROUND: Hepatitis A virus (HAV) vaccination is recommended worldwide for patients with chronic liver disease to prevent decompensation due to superinfection with HAV. India being endemic for HAV, the prevalence of pre-existing antibodies against HAV due to subclinical exposure to the virus in childhood among patients with chronic liver disease may be high and, therefore, vaccination may not be needed. However, little data are available on the prevalence of HAV antibody among patients with chronic liver disease in India. METHODS: All patients with chronic liver disease seen at Gastroenterology Center, Army Hospital R and R, New Delhi during the year 2002 and diagnosed to have either chronic liver disease were tested for the presence of IgG anti-HAV antibody in their sera (using a commercial ELISA kit). All patients with acute exacerbation or rapid deterioration of a preexisting chronic liver disease were separately studied for presence of IgM anti-HAV. In addition, a matched number of patients who attended the center due to diseases other than liver disease were also studied as controls. RESULTS: One hundred and eighty seven patients of chronic liver disease and 89 controls were studied. Mean age of these two groups was 38.6 and 42.1 years and 153 (81.8%) and 78 (87.6%) of them were males respectively. Etiology of chronic liver disease was HBV infection in 91(48.7%), HCV infection in 62 (33.2%), autoimmune chronic hepatitis in 3 (1.6%), PBC in seven (3.7%) and cryptogenic 24 (12.8%). Of these 179 (95.7%) patients tested positive for IgG anti-HAV. A total of 37 hospitalisations in 29 patients were noted during the study period due to acute exacerbation of pre-existing chronic liver disease. None of these were positive for IgM anti-HAV, while 28 were positive for IgG anti-HAV. Among the controls, 87 controls (94.6%) were positive IgG anti-HAV. The prevalence of anti-HAV positivity was similar among patients with various etiologies. CONCLUSION: Vaccination against HAV is not routinely required among patients with chronic liver disease in India as there is a very high prevalence of pre-existing antibodies in these patients. HAV superinfection as a cause of acute exacerbation of chronic liver disease was not seen in this.

Oral rehydration therapy in severely malnourished children with diarrheal dehydration.

Fifty patients of grade III & IV malnutrition with diarrhoeal dehydration were rehydrated using the WHO recommended ORS. Serum sodium and potassium levels were estimated at admission and 24 hours later. Forty seven patients were successfully rehydrated orally. In 7 patients the level of dehydration at initial assessment was overestimated. Periorbital edema developed in 25.5% of the patients rehydrated. No patient had cardiac failure or convulsions during therapy. Though persistent hyponatremia and hypokalemia were found in 10.6% and 19.15% cases respectively after rehydration, the incidence decreased as compared to the pre-hydration levels and was comparable to that found in malnourished children without diarrhea who served as controls in the present study. Oral rehydration was discontinued in three patients due to development of excessive vomiting in one case and paralytic ileus in two. Thus WHO ORS can be used safely in children with severe malnutrition but constant monitoring is required.