Observational studyFemale pelvic medicine & reconstructive surgery
New Measures for Predicting Birth-Related Pelvic Floor Trauma.
Observational study in Female pelvic medicine & reconstructive surgery. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
What it found
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The trial behind it
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Who cites it
6 citing papers in PubMed.
- Advanced FE simulation coupled with statistical surrogate modeling toward a multifactorial view on the pelvic floor muscle damage and perineal tearing during childbirth.Medical & biological engineering & computing · 2026Article
- Article
- Pelvic floor injury during vaginal birth is life-altering and preventable: what can we do about it?American journal of obstetrics and gynecology · 2024Review
- A constitutive model description of the in vivo material properties of lower birth canal tissue during the first stage of labor.Journal of the mechanical behavior of biomedical materials · 2018Article
- Pelvic floor disorders in postpartum adolescents in the Western Amazon: a cross-sectional study.International journal of women's health · 2018Article
- "Mommy, how will the baby get out of your tummy? Will it hurt you?"American journal of obstetrics and gynecology · 2017Article
Corrections and comments
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Authors and funding
6 authors.
Funding
Abstract
objectivesThe aim of this study was to establish the predictive role of obstetric variables for obstetric outcomes and birth related levator ani muscle (LAM) trauma.
methodsIn this prospective study, women underwent 3-dimensional pelvic floor ultrasound at their first appointment at 36 weeks and also 3 months postpartum. The measurements included minimal levator hiatus circumference (MLHC) and the ratio of fetal head circumference to MLHC = head-induced stretch ratio (HISR) as an indicator of the discrepancy between passage and passing canal. To derive the true impact of baby's mass on the levator ani musculature, we devised the levator ani stretch ratio (LASR), which was calculated by multiplying the HISR and the baby's weight.
resultsData set of 173 women was available for analysis. Mean HISR and LASR values were statistically different across all binary outcome categories, with 1 exception for HISR and levator ani injury. The odds ratios for LASR indicated positive and statistically significant associations with all obstetric outcomes examined. The probability of the LASR correctly classifying those with the adverse obstetric outcome, as estimated by the area under the curve, ranged from 0.64 to 0.80 with the strongest discriminatory ability observed for severe LAM trauma.
conclusionsFetal head circumference/mother MLHC ratio (HISR) is associated with longer length of second stage of labor, assisted delivery, and increased severity of perineal trauma. Similar associations were observed for LASR, but in addition, LASR had good discriminatory ability to identify severe LAM trauma.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.