Results: During the period from 6/2009 - 5/2010, 227 patients entered the intensive care unit of Binh Dan Hospital, thrombocytopenia (defined by a platelet count <100, 000) is 37 patients accounted for 16.3% rate, platelets by < 50.000 is 17 patients accounted for 7.5% rate., 48.65% mortality rate.