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Loop electrosurgical excision procedure and risk of miscarriage
Andrea Ciavattini1, Nicolò Clemente1, Giovanni Delli Carpini1
1Gynecologic Section, Woman's Health Sciences Department, Polytechnic University of Marche, Ancona, Italy.
Objective:
To evaluate the risk of miscarriage in the subsequent pregnancy after a loop electrosurgical excision procedure (LEEP), also considering time elapsed from LEEP to pregnancy.
Design:
Multicenter, retrospective cohort study.
Setting:
Tertiary care university hospitals.
Patient(S):
Women who had undergone LEEP from January 2000 to December 2011. Women with histologic assessment of low-grade cervical dysplasia, not requiring subsequent surgical treatment, constituted the control group.
Intervention(S):
None.
Main Outcome Measure(S):
The first pregnancy after the procedure was evaluated, and only women with singleton spontaneous pregnancies were considered. Women with time intervals of <12 months and women with intervals of ≥12 months or more from LEEP to pregnancy were then compared, to identify adjusted odds ratios for miscarriage.
Result(S):
In women previously treated with LEEP, a total of 116 cases of miscarriage (18.1%) was reported. The mean time interval from LEEP to pregnancy for women with miscarriage compared with women without miscarriage was significantly shorter (25.1 ± 11.7 months vs. 30.1 ± 13.3 months). A higher rate of miscarriage in women with a LEEP-to-pregnancy interval of <12 months compared with controls emerged (28.2% vs. 13.4%; adjusted odds ratio 2.60, 95% confidence interval 1.57-4.3). No significant difference in the rate of miscarriage in women with a LEEP-to-pregnancy interval of ≥12 months compared with controls emerged.
Conclusion(S):
Women with a time interval from LEEP to pregnancy of <12 months are at increased risk for miscarriage.
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