Resolution of hydrops secondary to cytomegalovirus after maternal and fetal treatment with human cytomegalovirus hyperimmune globulin

BACKGROUND: Congenital cytomegalovirus (CMV) is a common infection with limited treatment options. Vertical transmission can lead to fetal death or long-term neurologic injury. We present a case wherein fetal hydrops resolved after maternal and fetal intravenous administration of CMV hyperimmune globulin. CASE: A 20-year-old gravida 3, para 0 was referred for Level 11 ultrasonography secondary to hydrops fetalis. Amniocentesis demonstrated in utero CMV infection. Resolution of hydrops occurred after the administration of CMV hyperimmune globulin to the patient and then to her fetus. CONCLUSION: Resolution of hydrops secondary to congenital CMV was temporally related to the administration of maternal and fetal hyperimmune globulin.