Authors' response to the comment on "Antepartum hemorrhage from previous-cesarean-sectioned uterus as a potential

Ning Zhang1, Wen Di1

  • 1Department of Obstetrics and Gynecology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200126, China.

Thanks for the good comment by Matsubara et al. (2017) on our case of "Antepartum hemorrhage from previous-cesarean-sectioned uterus as a potential sign of uterine artery pseudoaneurysm" (Zhang et al., 2017), published in the Journal of Zhejiang University-SCIENCE B (Biomedicine & Biotechnology). In the comment, the authors clarified two possibilities of our scenario: the uterine artery pseudoaneurysm (UAP) could be newly formed in the present delivery as a result of vulnerability of uterine artery and/or its branches at the site of previous cesarean section (CS) scar to exogeneous stimuli during labor contractions; the other possibility is that previous CS caused UAP formation but remained unruptured, and UAP continued to be intrauterine, a hyper-dynamic state during labor causing UAP-sac rupture and resultant antepartum hemorrhage, as well as postpartum hemorrhage.

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