Severe ovarian hyperstimulation syndrome in patients with autoimmune disorders: a report of two cases.

Background: Ovarian hyperstimulation syndrome (OHSS) following ovulation induction is common and varies in severity from mild to severe. Severe OHSS can be life threatening and requires hospitalization and procedures to reduce the extracellular fluid accumulation. Ovulation induction regimen and patient characteristics such as young age and low body weight have been identified as risk factors for OHSS, and follicle count >20 may be predictive of increased risk for moderate to severe OHSS.