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Updated: May 1, 2026

A Rat Model of Mild Intrauterine Hypoperfusion with Microcoil Stenosis
Published on: January 7, 2018
Uterine artery pseudoaneurysm: not a rare condition occurring after non-traumatic delivery or non-traumatic abortion
Yosuke Baba1, Shigeki Matsubara, Tomoyuki Kuwata
1Department of Obstetrics and Gynecology, Jichi Medical University, 3311-1, Shimotsuke, Tochigi, 329-0498, Japan.
Purpose:
Uterine artery pseudoaneurysm (UAP) is considered a rare disorder after traumatic delivery or traumatic pregnancy termination such as cesarean section or dilatation and curettage, initially manifesting as genital hemorrhage. Our clinical impression contradicts these three assumptions; after traumatic delivery/termination, hemorrhage, and its rarity. Thus, we attempted to clarify these three issues.
Methods:
We retrospectively analyzed 22 UAP cases treated at our institute over a 6-year period.
Results:
Uterine artery pseudoaneurysm occurred in 2-3/1,000 deliveries. Of 22 cases, half occurred after non-traumatic deliveries or non-traumatic pregnancy termination. Fifty-five percent (12/22) showed no hemorrhage; ultrasound or color Doppler revealed UAP. Thus, half of UAP occurred after non-traumatic deliveries or non-traumatic pregnancy termination and showed no hemorrhage at the time of their diagnoses. All patients received transarterial embolization, which stopped blood flow into UAP or achieved hemostasis.
Conclusion:
We must be aware that UAP may not be so rare and it may be present in patients after non-traumatic deliveries/pregnancy termination and without postpartum or postabortal hemorrhage.
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