Thrombosis of the Renal Vein and Inferior Vena Cava Associated With Placental Fetal Vascular Malperfusion in a Neonate Exposed to Methadone Maintenance Therapy In Utero
Restricted accessCase reportFirst published online January, 2021
Thrombosis of the Renal Vein and Inferior Vena Cava Associated With Placental Fetal Vascular Malperfusion in a Neonate Exposed to Methadone Maintenance Therapy In Utero
Methadone, an opioid agonist, is the recommended treatment for pregnant women with opioid use disorder (OUD). Fetal/neonatal autopsy findings as well as placental changes in the setting of maternal OUD or methadone maintenance therapy (MMT) are not well-characterized. Here we present a case of a neonate who had exposure to MMT while in utero and died shortly after birth and was subsequently found to have multifocal calcified renal vein thrombosis, a recent inferior vena cava thrombus, and placental features of fetal vascular malperfusion at autopsy.
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