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|Help Hospital, India|
|ScientificTracks Abstracts: Virol-mycol|
|Background & Aim: In India, platelet transfusions are given to large no. of patients suffering with dengue due to the fear of bleeding especially when the platelet counts are low. Though many patients do not bleed when the platelet count falls to less than 20,000, certain patients bleed even if the platelet counts are more than 20,000 without any comorbid condition (like gastro intestinal ulcer) in the past. This fear has led to huge amounts of unnecessary platelet transfusions which cause significant economic burden to low and middle income countries like India and also sometimes these transfusions end with transfusion related adverse reactions. The aim of the study is to identify the role of APTT in comparison with thrombocytopenia as an indicator to assess the real need of platelet transfusions. Materials & Methods: A prospective study was conducted at a hospital in South India which included 176 admitted cases of dengue confirmed by immunochromatography. APTT was performed in all these patients along with platelet count. Cut off values of >60 seconds for APTT and <20,000 for platelet count were considered to assess the bleeding manifestations in dengue Results: Among the total 176 patients, 56 patients had bleeding manifestations like malena, hematuria, bleeding gums, etc. APTT >60 seconds had a sensitivity and specificity of 93% and 90% respectively in identifying bleeding manifestations whereas platelet count of <20,000 had a sensitivity and specificity of 64% and 73% respectively. Conclusion: Elevated APTT levels can be considered as an indicator to assess the need of platelet transfusion in dengue. As there is a significant variation among patients who bleed with respect to platelet count, APTT can be considered to avoid unnecessary transfusions.|
Kalyan Koganti, is an Infectious Diseases Specialist from South India, and has done his MD (Internal Medicine) from Manipal and PG certificate (Infectious Diseases) from London School of Hygiene and Tropical Medicine. He has established a centre for infectious diseases and has submitted significant scientific data on endemic infections, HIV and hospital/community acquired infections.
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