Uterine artery pseudoaneurysm: its occurrence after non-traumatic events, and possibility of 'without embolization' strategy

摘要

Objectives: Uterine artery pseudoaneurysm (UAP) has been considered to occur very rarely after traumatic delivery/abortion, and is usually detected after its rupture, yielding massive bleeding. Our hypothesis is: some UAP may be undetected without massive bleeding and may spontaneously resolve, and, thus, may not require transarterial embolization (TAE). We attempted: (1) to detect both ruptured and non-ruptured UAP, thereby characterizing candidates of spontaneously resolving UAP, and (2) to confirm that UAP is not rare and not always associated with traumatic events.