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Query: UMLS:C0851184 (thinning)
 11,252 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Stress incontinence of urine without cervicocystoptosis secondary to difficult labor and delivery is essentially due to rupture of the smooth muscle sphincter of the bladder. Other changes affecting the anterior vaginal wall (thinning of fibrous tissue, partial splitting of the striated urethral sphincter, etc.) are found before difficult labor without stress incontinence of urine. Only operative microscopy enables anatomical analysis. Lateral cystography confirms the clinical diagnosis. There is no correlation between the extent of lesions and functional study results. Surgery is limited to the dissection and apposition of the residual zone of the smooth muscle sphincter retracted laterally. There were neither postoperative dysuria nor dyspareunia. There were 11 recurrences. No marked symptomatic change 5 years later.
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PMID:[Anatomic findings during 509 microscopic sphincteroplasties for urinary stress incontinence in women. Diagnostic and surgical consequences]. 764 66

The causes of stress urinary incontinence are not completely known. Recent papers have stressed the importance of more anatomical information, which may help to elucidate the mechanism of stress urinary incontinence. The purpose of this study was to evaluate the prevalence of lesions of the urethral support mechanism and lesions (defects and scars, thinning) of levator ani muscle with endovaginal MRI in a case-control study. Forty women (median age 52 years, age range 40-65 years)--20 patients with stress urinary incontinence (cases) and 20 age-matched healthy volunteers (controls)--underwent endovaginal MRI: axial, coronal, and sagittal T2-weighted turbo spin echo. The examinations were evaluated for the presence of lesions of urethral supporting structures and levator ani and scar tissue of the levator ani. The thickness of the levator ani muscle was measured. Lesions of the urethral support system and levator ani were significantly more prevalent in cases than in controls ( p<0.01). Median levator ani thickness in patients was significantly lower than in healthy controls [2.5 mm (range 0.9-4.1 mm) vs 3.9 mm (range 1.4-7 mm)] ( p<0.01). This study indicates a relationship between stress urine incontinence and the presence of lesions of the urethral support and levator ani and levator ani thinning.
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PMID:High-resolution endovaginal MR imaging in stress urinary incontinence. 1269 75