Herpes in the Heart: A Case of Widely Disseminated Intrauterine Herpes Simplex Virus Infection Involving Neonatal Myocardium in a 23-Week Gestationally Aged Neonate

We report a rare case of disseminated herpes simplex virus (HSV) infection in an extremely preterm neonate. Herpes Simplex Virus-2 (HSV-2) is the leading cause of genital ulcer disease in adults and is the most common cause of neonatal herpes, a rare infection associated with long-term neurologic impairment and high mortality. HSV-2 can be transmitted perinatally via direct mucosal or skin contact. Most neonates are infected intrapartum. However, intrauterine transmission does occur, though rarely. The pattern of dissemination described in our patient differs from previous case reports. Most reports indicate that intrauterine HSV infections have a typical triad of cutaneous manifestations, ophthalmologic findings, and neurologic involvement. However, we report the first case of intrauterine disseminated HSV infection in the heart.