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Archives of Gynecology and Obstetrics

Erschienen in:

19.03.2021 | Maternal-Fetal Medicine

Laser vaporization of the cervix is associated with an increased risk of preterm birth and rapid labor progression in subsequent pregnancies

verfasst von: Kenta Nitahara, Yasuyuki Fujita, Daichi Tanaka, Naomi Magarifuchi, Shuichi Taniguchi, Tomihiro Shimamoto

Erschienen in: Archives of Gynecology and Obstetrics | Ausgabe 4/2021

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Abstract

Purpose

Laser vaporization of the cervix is an established method of treating cervical intra-epithelial neoplasia, but its effect on subsequent pregnancies remains controversial. The aim of this study was to investigate pregnancy outcomes after laser vaporization.

Methods

We conducted a retrospective study involving women who delivered live singletons between 2012 and 2019 in a tertiary hospital. The risks of adverse pregnancy outcomes after laser vaporization of the cervix were assessed using a multivariate regression model. The primary outcome was the adjusted odds ratio for preterm births. We also evaluated the course of labor progression, duration of labor, risk of emergency cesarean deliveries, and the risk of cervical laceration as secondary outcomes.

Results

In total, 3359 women were analyzed in this study. The risk of preterm birth was significantly higher in pregnancies after laser vaporization of the cervix (adjusted odds ratio [AOR] 1.84, 95% confidence interval [95% CI] 1.06–3.20; p = 0.030). The duration of the first stage of labor was significantly shorter in the post-treatment group (median 255 min vs. 355 min; p = 0.0049). We did not observe significant differences in the duration of the second stage of labor (median 21 min vs 20 min; p = 0.507) or the rates of other obstetric events, including emergency cesarean deliveries (AOR 0.736; 95% CI 0.36–1.50; p = 0.400) and cervical laceration (AOR 0.717; 95% CI 0.22–2.35; p = 0.582).

Conclusion

Laser vaporization of the cervix is associated with an increased risk of preterm births and a shorter duration of the first stage of labor in subsequent pregnancies. Careful consideration is necessary when selecting a method of treatment for the uterine cervix of patients wishing future pregnancies.

Cancer Information Service, National Cancer Center, Japan. http://ganjoho.jp/reg_stat/index.html

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Titel: Laser vaporization of the cervix is associated with an increased risk of preterm birth and rapid labor progression in subsequent pregnancies
verfasst von: Kenta Nitahara
Yasuyuki Fujita
Daichi Tanaka
Naomi Magarifuchi
Shuichi Taniguchi
Tomihiro Shimamoto
Publikationsdatum: 19.03.2021
Verlag: Springer Berlin Heidelberg
Erschienen in: Archives of Gynecology and Obstetrics / Ausgabe 4/2021
Print ISSN: 0932-0067
Elektronische ISSN: 1432-0711
DOI: https://doi.org/10.1007/s00404-021-06025-7

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Laser vaporization of the cervix is associated with an increased risk of preterm birth and rapid labor progression in subsequent pregnancies