• Hyunseung Koh, Sun Deok Kim, and Heebum Yang.
• Department of Emergency Medicine, Nowon Eulji Medical Center, Eulji University, Seoul, South Korea.
• J Emerg Med. 2021 Sep 1; 61 (3): 320-324.

BackgroundOvarian hyperstimulation syndrome (OHSS) is the most serious complication of assisted reproductive technology. Severe OHSS may be accompanied by thromboembolic events, such as pulmonary thromboembolism or acute respiratory distress syndrome. Ischemic stroke may occur in rare cases.Case ReportWe report a 32-year-old woman with a recent medical history of OHSS who presented to the emergency department (ED) with acute onset of impaired consciousness. Her initial Glasgow Coma Scale score was 10 (E3V3M4). History taking and a thorough physical examination were impossible because of the patient's mental status. Additional medical history was obtained with the assistance of the patient's husband. Ischemic stroke was confirmed on diffusion-weighted magnetic resonance imaging performed after a basic examination and confirmation of normal findings on a noncontrast brain computed tomography scan. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: Although the incidence of cerebral infarction is low in younger patients, emergency physicians treating young women in the ED who have recently undergone fertility treatment or have been diagnosed with OHSS should be aware of the possibility of complications caused by OHSS. Specifically, if these patients complain of traditional or nontraditional neurologic symptoms during an ED visit, stroke should be strongly suspected.. This awareness will reduce the incidence of sequelae through prompt examination and treatment.Copyright © 2021 Elsevier Inc. All rights reserved.

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