Comparison of Cross-Sectional Area of Pubovisceral Muscle in Nulliparous and Primiparous Women
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023698%3A_____%2F24%3AN0000020" target="_blank" >RIV/00023698:_____/24:N0000020 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11120/24:43926709 RIV/00064173:_____/24:43926709
Result on the web
<a href="https://pubmed.ncbi.nlm.nih.gov/38376549/" target="_blank" >https://pubmed.ncbi.nlm.nih.gov/38376549/</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s00192-024-05733-3" target="_blank" >10.1007/s00192-024-05733-3</a>
Alternative languages
Result language
angličtina
Original language name
Comparison of Cross-Sectional Area of Pubovisceral Muscle in Nulliparous and Primiparous Women
Original language description
Introduction and HypothesisThe main risk factor for pelvic floor disorders is vaginal delivery, which may cause levator ani muscle (LAM) injury and denervation. LAM includes pubovisceral muscle (PVM, pubococcygeus), puborectalis muscle (PRM), and iliococcygeus muscle. We hypothesize that primiparous women with low pelvic floor muscle contraction have a reduced PVM cross-sectional area (CSA) compared to nulliparous women.Methods (Sample Size and Statistical Approaches)This single-centre prospective observational study compared healthy nulliparous (n = 40) to primiparous (n = 40) women after vaginal delivery without LAM avulsion and Oxford score <= 3. Demographics, questionnaires (ICIQ-UI-SF, OAB-Q-SF, PISQ-12), POP-Q, Oxford score, ultrasound measurements (minimal anteroposterior and lateral diameters, hiatal area, PRM thickness, levator-urethra gap) and magnetic resonance imaging (MRI)-PVM CSA were evaluated. Normality was tested, and an appropriate test was used to compare the groups. Power calculation suggested 40 participants per group.ResultsThe primiparous group was older, had a higher BMI, and their hiatal area on ultrasound at contraction was larger compared to the nulliparous group. The CSA of the left-sided PVM (1.15 +/- 0.50 cm2) was larger compared to the right side (1.03 +/- 0.50 cm2), p = 0.02 in nulliparous women. The PVM CSA of primiparous women with low Oxford score was reduced compared to nulliparous (0.87 +/- 0.30 versus 1.09 +/- 0.50 cm2, p = 0.006). The intra-rater reliability for PVM CSA had an ICC of 0.90 and inter-rater ICC of 0.77.ConclusionsPrimiparous women after vaginal delivery with low pelvic floor contraction force had reduced PVM CSA on MRI images compared to nulliparous women.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
30214 - Obstetrics and gynaecology
Result continuities
Project
<a href="/en/project/EF19_073%2F0016935" target="_blank" >EF19_073/0016935: Grant schemes at Charles University</a><br>
Continuities
V - Vyzkumna aktivita podporovana z jinych verejnych zdroju
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
INTERNATIONAL UROGYNECOLOGY JOURNAL
ISSN
0937-3462
e-ISSN
1433-3023
Volume of the periodical
35
Issue of the periodical within the volume
4
Country of publishing house
GB - UNITED KINGDOM
Number of pages
8
Pages from-to
841-848
UT code for WoS article
001171727700003
EID of the result in the Scopus database
2-s2.0-85185330523