Correlation of Platelet Function with Postpartum Hemorrhage and Venous Thromboembolism in Patients with Gestational Hypertension Complicated with Diabetes

Abstract

Objective. This study was aimed at investigating the correlation of platelet function with postpartum hemorrhage and venous thromboembolism (VTE) in gestational hypertension patients with diabetes mellitus. Methods. A total of 93 patients with gestational hypertension complicated with diabetes treated from March 2020 to June 2021 were selected as the research group, and 56 healthy pregnant women during the same period were selected as the control group. Platelet function-related indicators (platelet count (PLT), platelet volume distribution width (PDW), and mean platelet volume (MPV)) were compared between the two groups. The patients were divided into a severe group ( $n=13$ ), mild group ( $n=28$ ), and nonbleeding group ( $n=52$ ) according to the severity of postpartum hemorrhage, and the value of combined detection of platelet function-related indicators on the severity of postpartum hemorrhage was evaluated and analyzed. According to the occurrence of VTE, the patients were divided into a VTE group and non-VTE group to analyze the predictive value of combined detection of platelet function-related indicators for VTE occurrence in patients. Results. The PLT value of the study group was lower than that of the control group, while the PDW and MPV values were higher than those of the control group (all $P<0.05$ ). The PLT value increased with the aggravation of postpartum hemorrhage, while the PDW and MPV values decreased with the aggravation of postpartum hemorrhage among the three groups with different severities of postpartum hemorrhage (all $P<0.05$ ). The area under the curve (AUC) of PLT, PDW, and MPV combination to evaluate the severity of postpartum hemorrhage in patients with gestational hypertension combined with diabetes was greater than that of PLT alone and PDW alone (both $P<0.05$ ). The PLT value was negatively correlated with the severity of postpartum hemorrhage, while PDW and MPV values were positively correlated with the severity of postpartum hemorrhage (both $P<0.05$ ). According to the occurrence of VTE, patients were divided into the VTE group ( $n=10$ ) and non-VTE group ( $n=83$ ). The PLT value of the VTE group was higher than that of the non-VTE group, while the PDW and MPV values were lower than those of the non-VTE group (all $P<0.05$ ). The AUC of PLT, PDW, and MPV combination to predict the occurrence of VTE in patients with gestational hypertension combined with diabetes was greater than that of each index alone (all $P<0.05$ ). Conclusion. Patients with gestational hypertension complicated with diabetes had abnormal platelet function, and the platelet function was related to postpartum hemorrhage and VTE.