corticosteroid in the treatment of moderate to severe thrombocytopenia due to leptospirosis

background thrombocytopenia is associated with a bad prognosis in leptospirosis. objectives we investigated the effect of corticosteroids to improve thrombocytopenia due to leptospirosis. patients and methods in a clinical trial, all patients admitted with leptospirosis in razi hospital of ghaemshahr, north of iran were enrolled in a 2-year study. totally, 56 patients with moderate to severe thrombocytopenia were randomized to control and treatment groups. the treatment group received corticosteroid (prednisolone 1 mg/kg/day for maximum one week) in addition to the standard antibiotic therapy. results there was no significant difference regarding age and gender between the two groups (p = 0.254, p = 0.789, respectively). the mean duration to improve thrombocytopenia was 4.41 ± 0.197 days in the treatment group and 5.72 ± 0.318 days in the control group, which was significantly different (p = 0.003). duration of hospitalization in the treatment group was 5.24 ± 0.244 days and 6.23 ± 0.329 days in the control group, which was significantly different (p = 0.028). the two groups had no significant difference regarding mortality, intubation, level of platelet, duration of icu admission and pulmonary, renal or hepatic involvement. conclusions corticosteroid therapy decreased the length of hospitalization only in severe subgroup thrombocytopenia, but not in the moderate subgroup.