• Lin-Bo Cheng, Qiang Wei, Li Zhang, and Qin-Yan Cao.
• Department of Obstetrics and Gynecology, Key Laboratory of Birth Defects and Related Diseases of Women and Children of the Ministry of Education, West China Second Hospital, Sichuan University, Chengdu, China.
• Medicine (Baltimore). 2022 Nov 4; 101 (44): e31379e31379.

RationaleHELLP syndrome, a rare but serious obstetric complication, is often overdiagnosed due to its nonspecific symptoms and inappropriate clinical testing.Patient ConcernsA 30-year-old nulliparous pregnant Chinese woman at gestational age of 28+1 weeks was admitted to our hospital because Doppler ultrasonography at a local hospital had detected loss of fetal umbilical artery end-diastolic blood flow lasting 12 hours. On admission to our hospital, the patient showed elevated blood pressure (148/84 mm Hg), but blood pressure and laboratory indicators after admission were normal. However, the patient developed abdominal pain during hospitalization.InterventionsDexamethasone was given after admission to our hospital to promote fetal lung maturation, magnesium sulfate was given to protect fetal brain nerves, and maternal blood pressure was closely monitored. In addition, fetal umbilical artery blood flow was dynamically monitored. After three days in hospital with normal blood pressure, the patient developed abdominal pain accompanied by diarrhea. She was positive for Murphy's sign and laboratory tests showed no obvious abnormalities. Acute cholecystitis was suspected, but symptomatic and supportive treatment did not relieve abdominal pain and her blood pressure increased progressively to 212/130 mm Hg. Magnesium sulfate was given immediately to prevent spasm, and nitroglycerin was administered intravenously against hypertension. Liver enzymes, blood coagulation, and routine urinalysis were abnormal. The patient was diagnosed with HELLP syndrome, and an emergency cesarean section was performed.DiagnosisHELLP syndrome.OutcomesAfter the cesarean section, platelet (PLT) count continuously decreased and transaminase and bilirubin levels continously increased. The newborn was transferred to the neonatal intensive care unit after birth and discharged at a corrected gestational age of 34 weeks. By postoperative day 6, laboratory indicators had returned to normal and the patient was discharged.Lessons SubsectionsOur case highlights that HELLP syndrome is a serious complication, and it should be diagnosed carefully and not arbitrarily on the basis of some abnormal indicators and stable clinical manifestations. Accurate early identification, active monitoring and management are essential for improving prognosis and avoiding maternal or infant mortality.Copyright © 2022 the Author(s). Published by Wolters Kluwer Health, Inc.

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