Study design
infection, vasculitis, intraoperative bleeding, intraoperative invasive arterial blood pressure
VASCULITIS, SEVERE PREECLAMPSIA, GESTATIONAL HYPERTENSION, MILD PREECLAMPSIA, INFECTION, VASCULAR DISEASES, SEVERE PREECLAMPSIA, PLACENTAL ABRUPTION, COAGULOPATHY, GESTATIONAL HYPERTENSION, INTRAOPERATIVE BLEEDING
The Ethics Committee of Hangzhou Women’s Hospital approved this study (IRB:2021-K(9)-02). This prospective, randomized, and double-blind trial was conducted from 3 January 2022 to 6 June 2022 after received written informed consent from all participants and finally 94 women were recruited.Women with gestational hypertension and risks of intraoperative bleeding should receive intraoperative invasive arterial blood pressure monitoring undergoing elective cesarean section will be selected. Gestational hypertension includes mild preeclampsia and severe preeclampsia. Severe preeclampsia was defined as a blood pressure of 160/100 mm Hg or greater on two occasions at least 4 h apart while the patient was on bed rest. Risks of intraoperative bleeding were placental abruption, placental implantation, multiple cesarean sections according to the obstetrican’s judgment.The exclusion criteria were emergency surgery, negative modified Allen’s test, infection or external injury at or near the puncture site, coagulopathy, and vascular diseases such as vasculitis.Standard monitoring was applied, and we suggested applying intraoperative invasive arterial blood pressure monitoring for women with gestational hypertension and risks of intraoperative bleeding during cesarean section at our medical institution. All women were supine with the arm extended to 60° and supported on the arm plate during artery cannulation and ultrasonographic measurements.