Abstract
BackgroundPseudoaneurysms are formed when a local arterial wall ruptures, leading to hemorrhage and hematoma adjacent to the artery. Continuous perfusion of the injured artery increases the pressure in the lumen of the pseudoaneurysm. It may rupture and lead to massive hemorrhage that could be life-threatening. Cesarean scar pregnancy (CSP) is an ectopic pregnancy where the gestational sac is implanted in the cesarean scar. Uterine artery pseudoaneurysm (UAP) after CSP treatment is rare.Case presentationWe report the case of a 36-year-old Chinese woman who presented with acute massive vaginal bleeding 53 days after transabdominal scar pregnancy excision. Doppler ultrasound confirmed UAP. Selective uterine artery embolization (UAE) failed because of the thin and curved blood vessels. The lesion decreased in size after transvaginal ultrasound-guided direct thrombin injection (UGTI); however, massive vaginal bleeding recurred and endangered the patient’s life. The uterus was removed thereafter.ConclusionsUAP is a rare complication after CSP treatment that can lead to fatal massive hemorrhage. Ultrasound should be reexamined regularly after treatment of CSP. In case of unexplained vaginal bleeding, we should be alert to the existence of UAP and the possibility of rupture and take effective diagnosis and treatment measures promptly.
Highlights
Pseudoaneurysms are formed when a local arterial wall ruptures, leading to hemorrhage and hematoma adjacent to the artery
Uterine artery pseudoaneurysm (UAP) is a rare complication after Cesarean scar pregnancy (CSP) treatment that can lead to fatal massive hemorrhage
In case of unexplained vaginal bleeding, we should be alert to the existence of UAP and the possibility of rupture and take effective diagnosis and treatment measures promptly
Summary
UAP is a rare complication after CSP treatment that can lead to fatal massive hemorrhage. Ultrasound should be reexamined regularly after treatment of CSP. In case of unexplained vaginal bleeding, we should be alert to the existence of UAP and the possibility of rupture and take effective diagnosis and treatment measures promptly
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