Document Detail

The vaginal pressure profile.
MedLine Citation:
PMID:  15714439     Owner:  NLM     Status:  MEDLINE    
AIMS: To describe the vaginal pressure profile in asymptomatic nulliparous women. METHODS: Fourteen nulliparous women without symptoms of anal or urinary incontinence were studied with vaginal manometry. A rapid pull-through technique utilized a four-channel water-perfused catheter on a motor-driven puller to create a pressure profile for each subject. The profiles were measured with the subject at rest and during a sustained contraction of the levator ani muscle. The individual subject's pressure profiles were averaged to create a composite profile at rest and during squeeze. RESULTS: The vaginal pressure profile at rest and during squeeze contains three pressure zones: proximal, mid, and distal. The pressure is highest in the mid pressure zone and was labeled as the vaginal high-pressure zone. In the vaginal high-pressure zone, the maximum pressure during squeeze is significantly higher than the maximum pressure at rest (P < 0.05). The length of the high-pressure zone is longer during squeeze as compared to rest (P < 0.05). The maximum pressures exhibit circumferential asymmetry with the pressures in anterior and posterior directions being significantly higher than those in the lateral directions (P < 0.05). CONCLUSIONS: The vaginal pressure profile is more complex than previously described. Understanding of the vaginal pressure profile is crucial when employing vaginal manometry to assess pelvic floor muscle strength or as a surrogate for intra-abdominal pressure.
Noelani M Guaderrama; Charles W Nager; Jianmin Liu; Dolores H Pretorius; Ravinder K Mittal
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Neurourology and urodynamics     Volume:  24     ISSN:  0733-2467     ISO Abbreviation:  Neurourol. Urodyn.     Publication Date:  2005  
Date Detail:
Created Date:  2005-05-02     Completed Date:  2005-06-17     Revised Date:  2006-07-17    
Medline Journal Info:
Nlm Unique ID:  8303326     Medline TA:  Neurourol Urodyn     Country:  United States    
Other Details:
Languages:  eng     Pagination:  243-7     Citation Subset:  IM    
Department of Reproductive Medicine, Internal Medicine and Radiology, Division of Female Pelvic Medicine and Reconstructive Surgery, The Pelvic Floor Function and Disorder Group, University of California, San Diego, California 92037, USA.
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MeSH Terms
Manometry / methods,  standards*
Middle Aged
Muscle Contraction / physiology*
Pelvic Floor / physiology
Reference Values
Rest / physiology
Vagina / physiology*

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