ALB and ovarian hyperstimulation syndrome: Meta-analytic data demonstrated that intravenous administration of human albumin at the time of oocyte retrieval reduced the incidence of moderate-to-severe OHSS compared to no treatment or placebo in OHSS high-risk patients (7 RCTs; OR 0.67, 95% CI 0.47 to 0.95, n = 1,452; I2 = 69%) [111].