Comparison of Cross-Sectional Area of Pubovisceral Muscle in Nulliparous and Primiparous Women.
Cross-sectional area
Denervation
Magnetic resonance imaging
Pubovisceral muscle
Ultrasound
Journal
International urogynecology journal
ISSN: 1433-3023
Titre abrégé: Int Urogynecol J
Pays: England
ID NLM: 101567041
Informations de publication
Date de publication:
20 Feb 2024
20 Feb 2024
Historique:
received:
30
03
2023
accepted:
02
01
2024
medline:
20
2
2024
pubmed:
20
2
2024
entrez:
20
2
2024
Statut:
aheadofprint
Résumé
The 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. 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. The 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 cm Primiparous women after vaginal delivery with low pelvic floor contraction force had reduced PVM CSA on MRI images compared to nulliparous women.
Identifiants
pubmed: 38376549
doi: 10.1007/s00192-024-05733-3
pii: 10.1007/s00192-024-05733-3
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Subventions
Organisme : Univerzita Karlova v Praze
ID : CZ.02.2.69/0.0/0.0/19_073/0016935
Informations de copyright
© 2024. The Author(s).
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