Abstract:
Background Ovarian hyperstimulation syndrome (OHSS) is an overreaction to the use of gonadotropin in the process of controlled ovarian hyperstimulation (COH), which is the most serious complication in assisted reproductive technology (ART). The characteristic of hypercoagulability and treatment of OHSS are still lack of in-depth discussion.
Objective To explore the changes of blood coagulation indexes in patients with severe OHSS and analyze the etiology of hypercoagulable state as well as treatment strategy and prognosis, so as to guide clinical practice to better prevent the risk of thrombosis. dexes in patients with severe OHSS and analyze the etiology of hypercoagulable state as well as treatment strategy and prognosis, so as to guide clinical practice to better prevent the risk of thrombosis.
Methods Clinical data about 29 patients hospitalized for severe OHSS in the Department of Obstetrics and Gynecology, the First Medical Center, Chinese PLA General Hospital from 2017 to 2021 were retrospectively analyzed. The changes of blood test indexes were collected before and after OHSS occurred, including thrombin time (TT), activated partial thromboplastin time (APTT), prothrombin time (PT), international standardized ratio (INR), prothrombin time activity (PTA), plasma fibrinogen determination (Fib), hematocrit (HCT), white blood cell (WBC), neutrophil (NEUT%), platelet (PLT), serum albumin (ALB), serum Na+, serum K+, urine volume, and thoracic or abdominal drainage volume. The treatment strategy and prognosis were also analyzed.
Results The patients’ average age was 31.03 ± 4.98 years. Compared with those before onset, the TT decreased slightly, PT increased slightly, and Fib increased significantly (P<0.05), however, the APTT, PTA, and INR did not change significantly. In OHSS patients, HCT and WBC increased significantly, while ALB and serum Na + decreased significantly (all P<0.05). Pearson correlation analysis showed that the number of collected oocytes was positively correlated with the prolongation of PT (r=0.380, P=0.042) and the days took for abdominal drainage volume to recover (r=0.468, P=0.010). All patients were discharged after symptomatic supportive care, including abdominal puncture drainage, rehydration and anticoagulation.
Conclusion The blood of patients with severe OHSS is hypercoagulable, which is mainly due to the blood concentration caused by blood volume loss, and the severity of the disease is positively correlated with the number of collected oocytes. Therefore, for such patients, the core diagnosis and treatment method should be scientific rehydration treatment, supplemented with anticoagulant drugs such as heparin and defibrinogenase if necessary.