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Br J Obstet Gynaecol. 1997 Sep;104(9):994-8.

Analysis of collagen status in premenopausal nulliparous women with genuine stress incontinence.

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1
Bristol Urological Institute, Southmead Hospital, UK.

Abstract

OBJECTIVE:

To determine if differences exist in the collagen status of premenopausal nulliparous women with genuine stress incontinence compared with continent controls.

DESIGN:

Thirty-six premenopausal nulliparous women with urodynamically-proven genuine stress incontinence were compared with 25 controls. All the women studied had a periurethral vaginal biopsy taken of approximately 30-50 mg in wet weight. This biopsy was then analysed to determine the collagen content, the type I:III collagen ratio and the collagen cross-link content.

SETTING:

A tertiary referral urodynamic unit.

RESULTS:

The nulliparous women with genuine stress incontinence had significantly less collagen in their tissues (P < 0.0001) compared with the continent controls. In addition, there was a decreased ratio of type I to type III collagen (P = 0.0008), and the cross-link content was also significantly reduced in the women with genuine stress incontinence (P < 0.0001).

CONCLUSION:

Genuine stress incontinence is present in a significant number of women before childbirth. The aetiology of their incontinence appears to be due to a defect in their connective tissue, with both a quantitative and qualitative reduction in their collagen.

PMID:
9307523
[Indexed for MEDLINE]
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