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Obstet Gynecol. 2009 Oct;114(4):795-804. doi: 10.1097/AOG.0b013e3181b5ccf9.

Immediate complications after medical compared with surgical termination of pregnancy.

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  • 1Department of Obstetrics and Gynecology, Oulu University Hospital, Oulu, Finland.

Abstract

OBJECTIVE:

To estimate the immediate adverse events and safety of medical compared with surgical abortion using high-quality registry data.

METHODS:

All women in Finland undergoing induced abortion from 2000-2006 with a gestational duration of 63 days or less (n=42,619) were followed up until 42 days postabortion using national health registries. The incidence and risk factors of adverse events after medical (n=22,368) and surgical (n=20,251) abortion were compared. Univariable and multivariable association models were used to analyze the risk of the three main complications (hemorrhage, infection, and incomplete abortion) and surgical (re)evacuation.

RESULTS:

The overall incidence of adverse events was fourfold higher in the medical compared with surgical abortion cohort (20.0% compared with 5.6%, P<.001). Hemorrhage (15.6% compared with 2.1%, P<.001) and incomplete abortion (6.7% compared with 1.6%, P<.001) were more common after medical abortion. The rate of surgical (re)evacuation was 5.9% after medical abortion and 1.8% after surgical abortion (P<.001). Although rare, injuries requiring operative treatment or operative complications occurred more often with surgical termination of pregnancy (0.6% compared with 0.03%, P<.001). No differences were noted in the incidence of infections (1.7% compared with 1.7%, P=.85), thromboembolic disease, psychiatric morbidity, or death.

CONCLUSION:

Both methods of abortion are generally safe, but medical termination is associated with a higher incidence of adverse events. These observations are relevant when counseling women seeking early abortion.

LEVEL OF EVIDENCE:

II.

Comment in

PMID:
19888037
[PubMed - indexed for MEDLINE]
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