OHSS may start early, within days after hCG injection, or late (> 10 days post hCG) from placental hCG secretion. Mild to moderate OHSS has a favorable prognosis and severe OHSS carries a favorable prognosis with early identification and management.⁴ The median recovery from OHSS is 11 days, but may take several weeks depending on the severity, with hypoalbuminemia and PCOS often leading to a longer recovery time.⁸

Dr. Romero is faculty and an emergency physician at MedStar Washington Hospital Center in Washington, D.C.

Dr. Koo is faculty and an emergency physician at MedStar Washington Hospital Center in Washington, D.C., and St. Mary’s Hospital in Leonardtown, Maryland.

Dr. Borhart is faculty and an emergency physician at MedStar Washington Hospital Center in Washington, D.C.

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