Risk Factors and the Effect of Plasma Exchange on Prognosis of Pregnancy-related Thrombotic Microangiopathies

"Objective: To evaluate the risk factors of pregnancy-related thrombotic microangiopathies and the effect of plasma exchange on the prognosis (recovery status of renal function, recovery status of platelets, survival or death within 28 days). Design: A retrospective analysis of pregnant patients admitted to the ICU from 2015 to 2019. According to the outcome indicator of the occurrence of pregnancy-related thrombotic microangiopathies, they were divided into thrombotic microangiopathies group and non-thrombotic microangiopathies group. Patients in the pregnancy-related thrombotic microangiopathy group were divided into plasma exchange combined non-plasma exchange group according to whether they received plasma exchange. Collect the clinical data of the patients, and analyze the data using SPSS 1 7.0 statistical software package. The measurement data were compared by paired t test and one-way analysis of variance; the count data were compared by χ2 test. Compare the differences of the indicators between the two groups and analyze the risk factors of pregnancy-related thrombotic microangiopathies. Then compare whether there is a difference in the prognosis between the plasma exchange group and the non-plasma exchange group."