Thrombocytopenia in hypertensive disorders of pregnancy

摘要

Background: Thrombocytopenia is defined as a platelet count of less than 150×10sup3/sup μl. It is commonly diagnosed and has attracted more interest from researchers during recent years, especially in Hypertensive disorders of pregnancy. This study was done to estimate the incidence of thrombocytopenia in pregnant women diagnosed with hypertensive disorders of pregnancy and to correlate its severity with the degree of thrombocytopenia. Methods: In the study 150 women admitted in the OBG Department at Rajarajeswari Medical College and Hospital, Bengaluru during August 2015-August 2016 were included. Hypertensive disorders of pregnancy cases were classified into: Gestational hypertension, mild preeclampsia, severe preeclampsia, haemolysis, elevated liver enzyme levels, and low platelet levels (HELLP) syndrome and eclampsia. The incidence and severity of thrombocytopenia along with maternal and foetal complications encountered in the five groups were analysed. Data were arranged in Microsoft Excel version 2010, and statistically analysed by SPSS version 23. Results: Preeclampsia- mild (29.25%) and severe (22.5%), accounted for most of the cases followed by eclampsia (3%) and gestational HTN (1.5%). Among these hypertensive patients, mild thrombocytopenia was noted in 60 cases (40%), moderate thrombocytopenia 48 (32%), severe thrombocytopenia 12 (8%), and normal platelet counts 30 (20%) were noted. Poor maternal outcome was seen 10.67% cases due to HELLP syndrome and postpartum haemorrhage. Poor foetal outcome was seen in 16% cases due to intrauterine growth restriction and perinatal mortality. Conclusions: Hypertensive disorders of pregnancy is recognized as a major cause of gestational thrombocytopenia. Careful follow up during and after pregnancy is recommended.