A Case of Retained Placenta Increta Successfully Treated via Uterine Arterial Embolization Using N-Butyl 2-Cyanoacrylate

A 29-year-old woman with placenta increta with hemorrhage underwent uterine artery embolization using 12.5% NBCA (N-butyl 2-cyanoacrylate) diluted with iodized oil (Lipiodol). Complete resolution of placenta increta without performing curettage was obtained. The uterus returned to its normal shape, with restored endometrium, junctional zone, and myometrium. Menstruation resumed after 3 months. In cases of retained placenta due to placenta accreta, and even those with placenta increta, uterine artery embolization using NBCA is a useful treatment.