4.5 Article

Peripartum hysterectomy due to severe postpartum hemorrhage: A hospital-based study

Journal

ACTA OBSTETRICIA ET GYNECOLOGICA SCANDINAVICA
Volume 101, Issue 7, Pages 819-826

Publisher

WILEY
DOI: 10.1111/aogs.14358

Keywords

cesarean section; maternal near miss; peripartum hysterectomy; placenta accreta spectrum disorders; placenta previa; severe postpartum hemorrhage

Funding

  1. South-Eastern Norway Regional Health Authority [2018024]

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This study analyzed cases of peripartum hysterectomies at Oslo University Hospital from 2008 to 2017, finding that uterine atony and retained placenta are the leading causes of these procedures. Risk factors such as advanced maternal age, previous cesarean section, multiple pregnancies, and placenta previa were associated with a higher likelihood of peripartum hysterectomy.
Introduction A peripartum hysterectomy is typically performed as a lifesaving procedure in obstetrics to manage severe postpartum hemorrhage. Severe hemorrhages that lead to peripartum hysterectomies are mainly caused by uterine atony and placenta accreta spectrum disorders. In this study, we aimed to estimate the incidence, risk factors, causes and management of severe postpartum hemorrhage resulting in peripartum hysterectomies, and to describe the complications of the hysterectomies. Material and methods Eligible women had given birth at gestational week 23+0 or later and had a postpartum hemorrhage >= 1500 mL or a blood transfusion, due to postpartum hemorrhage, at Oslo University Hospital, Norway, between 2008 and 2017. Among the eligible women, this study included those who underwent a hysterectomy within the first 42 days after delivery. The Norwegian Medical Birth Registry provided the reference group. We used Poisson regression to estimate adjusted incidence rate ratios with 95% confidence intervals to identify clinical factors associated with peripartum hysterectomy. Results The incidence of hysterectomies with severe postpartum hemorrhage was 0.44/1000 deliveries (42/96313). Among the women with severe postpartum hemorrhage, 1.6% ended up with a hysterectomy (42/2621). Maternal age >= 40, previous cesarean section, multiple pregnancy and placenta previa were associated with a significantly higher risk of hysterectomy. Placenta accreta spectrum disorders were the most frequent cause of hemorrhage that resulted in a hysterectomy (52%, 22/42) and contributed to most of the complications following the hysterectomy (11/15 women with complications). Conclusions The rate of peripartum hysterectomies at Oslo University Hospital was low, but was higher than previously reported from Norway. Risk factors included high maternal age, previous cesarean section, multiple pregnancy and placenta previa, well known risk factors for placenta accreta spectrum disorders and severe postpartum hemorrhage. Placenta accreta spectrum disorders were the largest contributor to hysterectomies and complications.

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