Anthropometric Features and Third-Fourth Degree Perineal Tears

Author:

Fruscalzo Arrigo1ORCID,Novak Alice2,Somma Camilla2,Xholli Anjeza3ORCID,Michelerio Virginia3ORCID,Prefumo Federico4ORCID,Londero Ambrogio P.45ORCID,Cagnacci Angelo35ORCID

Affiliation:

1. Clinic of Obstetrics and Gynecology, University Hospital of Fribourg, 1752 Fribourg, Switzerland

2. Clinic of Obstetrics and Gynecology, DAME, Academic Hospital of Udine, 33100 Udine, Italy

3. Academic Unit of Obstetrics and Gynecology, IRCCS Ospedale San Martino, 16132 Genoa, Italy

4. Obstetrics and Gynecology Unit, IRCCS Istituto Giannina Gaslini, 16147 Genova, Italy

5. Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Infant Health, University of Genoa, 16132 Genova, Italy

Abstract

The main objective of this study was to evaluate the association between maternal and fetal anthropometric characteristics and third- and fourth-degree perineal tears. This retrospective cohort study considered all consecutive pregnancies from 2011 to 2017 at a single Institution. The inclusion criteria were: singletons who delivered vaginally during the study period, the presence of information on maternal pre-pregnancy weight, maternal height, and weight of the newborn. The feto-maternal body-mass index (BMI) was calculated as neonatal weight in kg on maternal height in squared meters (kg/m2). In total, 5397 singleton-term pregnancies were included; the prevalence of third-fourth-degree perineal tears was 0.47%. The most predictive factors were: nulliparity, feto-maternal BMI, neonatal weight, gestational age at delivery, and neonatal head circumference. After adjustment in multivariate analysis, the only independent predictors were nulliparity and fetomaternal BMI. The AUC of the final multivariate model was 73.54% (95% CI 65.65–81.42). Furthermore, feto-maternal BMI and gestational age had a significant direct correlation. Nulliparity and feto-maternal BMI are the two best predictors for third and fourth-degree perineal tears in our setting. Confirming this association in future research and integrating it into a decision algorithm on delivery timing could reduce obstetric damage to the anal sphincter.

Publisher

MDPI AG

Subject

Medicine (miscellaneous)

Reference26 articles.

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Anthropometric features as predictors of obstetric anal sphincter injuries;American Journal of Obstetrics & Gynecology MFM;2023-11

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