Original research article
Complications of surgical termination of second-trimester pregnancy in
obese versus nonobese women
☆,☆☆
Lisbeth A. Murphy
a
, Loralei L. Thornburg
b
, J. Christopher Glantz
b
, Emilie C. Wasserman
a
,
Nancy L. Stanwood
c
, Sarah J. Betstadt
a,
⁎
a
University of Rochester Department of OB/GYN, Rochester, NY 14642, USA
b
University of Rochester Department of OB/GYN, Division of Maternal Fetal Medicine, Rochester, NY 14642, USA
c
Yale School of Medicine, Department of Obstetrics, Gynecology & Reproductive Sciences, New Haven, CT 06520-8063, USA
Received 9 November 2011; revised 1 February 2012; accepted 6 February 2012
Abstract
Background: Obesity is becoming increasingly common in obstetric and gynecologic populations, which may affect the safety of surgical
termination of pregnancy.
Study Design: We performed a retrospective review of all patients undergoing second-trimester surgical termination of pregnancy by under
ultrasound guidance termination between 13 0/7 and 24 0/7 weeks of gestational age (GA) to compare perioperative risks in obese and
nonobese women. Complication rates, operative times and anesthesia times were compared between obese [body mass index (BMI) ≥30 kg/
m
2
] and nonobese women (BMI b30).
Results: Of 1044 women, 29.0% were obese. The mean complication rate was 6.1% and similar between groups (5.5% nonobese, 7.6% obese,
p=.20). Operative times were 4.4 min longer and mean anesthesia times were 5 min longer in obese patients (pb.001 for each). There was a
nonsignificant trend toward more complications with gestational ages above 18 weeks (5.5% vs. 7.7%, p=.20). A history of one or more
cesarean sections had an independent association with major complications after adjustment for confounders (adjusted odds ratio 4.2, p=.001).
Conclusions: Both anesthesia and operative times were modestly increased in obese women versus nonobese women undergoing
second-trimester surgical termination, without significant differences in complication rates. For patients at advanced GA with prior
cesarean delivery, clinicians should be aware of the potential increase in complications as well as increased operative time in obese
women, and counsel appropriately.
© 2012 Elsevier Inc. All rights reserved.
Keywords: Obesity; Surgical termination; Second-trimester termination; Dilation and evacuation; Operative time
1. Introduction
Nearly one half of the 6 million pregnancies occurring
annually in the United States are unintended [1]. Of these
unintended pregnancies, about 43% will end with induced
abortion [1]. One third of American women have an induced
abortion during their life [2]. Although surgical termination
of pregnancy has previously been shown to be a safer
method of pregnancy termination when compared to labor
induction, death and complications can still occur, most
commonly due to infection and hemorrhage [3,4]. Compli-
cations from infection and hemorrhage are responsible for
approximately one half of abortion-related deaths, with
anesthesia complications accounting for 16% of abortion-
related deaths [3]. Both pregnancy and obesity increase
anesthetic risks [4].
Obesity is becoming increasingly common in obstetric
and gynecologic populations in the United States. The
proportion of overweight or obese women [body mass index
(BMI), 25.0 kg/m
2
or more] of reproductive age in the
United States increased from 37% to 59.5% in recent years
Contraception 86 (2012) 402 – 406
☆
Previous publication: This work was previously presented as a
poster presentation at: Reproductive Health 2011, Association of
Reproductive Health Professionals, Las Vegas, NV, September 15,
2011, Abstract/Poster #0078.
☆☆
No financial support for this study.
⁎
Corresponding author and for reprint requests, please contact: Sarah
Betstadt, 601 Elmwood Ave., Box 668. Rochester, NY 14642. Tel.: +1-585-
276-5368.
E-mail address: Sarah_betstadt@urmc.rochester.edu (S.J. Betstadt).
0010-7824/$ – see front matter © 2012 Elsevier Inc. All rights reserved.
doi:10.1016/j.contraception.2012.02.006