Manual removal of the placenta--a case control study

Aust N Z J Obstet Gynaecol. 2001 Feb;41(1):41-4. doi: 10.1111/j.1479-828x.2001.tb01292.x.

Abstract

The aim of this study was to determine the incidence and complications related to manual removal of the placenta in a regional hospital in Australia. The study was carried out at the Goulburn Valley Base Hospital in Shepparton. The hospital medical records were reviewed from 1992 to 1999. A total of 3734 singleton live vaginal deliveries took place during the 7-year study period. The placenta was removed manually in 114 women (3%). For a control group, a series of 113 women who had singleton live vaginal deliveries from the same period were chosen at random. The case and control groups were similar in age, parity, and gravidity. A previous history of retained placenta and a history of preterm delivery in the current pregnancy were significantly related to retained placenta (OR 9.8 [95% CI 1.1-85.5] and OR 5.6 [95% CI 1.1-26.8], respectively). The cases received significantly more blood transfusions than the control group (13% versus 0%). Decreased maternal age was also significantly related to retained placenta. There were also more post-delivery dilatation and curettage (D&C) operations and diagnosis of endomyometritis in the case group. However, these differences were not statistically significant. One woman, in the case group, had to have a hysterectomy due to placenta accreta.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Blood Transfusion / statistics & numerical data
  • Case-Control Studies
  • Delivery, Obstetric / methods*
  • Delivery, Obstetric / statistics & numerical data
  • Dilatation and Curettage / statistics & numerical data
  • Endometritis / complications
  • Female
  • Gravidity
  • Humans
  • Incidence
  • Maternal Age
  • Obstetric Labor, Premature / complications
  • Parity
  • Placenta, Retained / epidemiology
  • Placenta, Retained / etiology*
  • Placenta, Retained / therapy*
  • Pregnancy
  • Recurrence
  • Risk Factors
  • Victoria / epidemiology