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JOURNAL ARTICLE
RESEARCH SUPPORT, NON-U.S. GOV'T
Associations of defecography and physiologic findings in male patients with rectocele.
Techniques in Coloproctology 2001 December
This study evaluated the incidence and physiological findings in male patients with rectoceles. All defecographic studies were evaluated by a single colorectal surgeon. After diagnosis of rectocele in male patients, the patient's history, symptoms, and physiologic tests (anal manometry, pudendal nerve terminal motor latency [PNTML], assessment and electromyography [EMG]) were studied. A prominent rectocele was defined as one that did not empty during defecography and was associated with outlet obstructive syndrome. Forty (17%) rectoceles were diagnosed in 234 male patients with evacuatory disorders who underwent defecography. Rectoceles were anterior in 19 (48%) and posterior in 21 (52%) patients. The main complaint was constipation with difficult defecation in 33 (83%), followed by rectal pain in 5 (13%), rectal prolapse in 1 (3%), and incontinence in 1 (3%). Previous prostatic surgery had been performed in 16 (40%) patients. The mean age and duration of symptoms were 72.4 years (range, 30-88) and 10.3 years (range, 0.5-70), respectively. Excessive straining during evacuation was noted in 73%, unilateral or bilateral pudendal neuropathy in 24.5%, paradoxical puborectalis contraction in 49% and abnormal EMG in 11% of patients. Higher resting pressures with a mean 3.9 cm high pressure zone were noted in 29% of patients. The accompanying findings in defecography were, non-relaxing or partially relaxing puborectalis muscle (66%), perineal descent (65%), intussusception (23%), and sigmoidocele (15%). None of the patients underwent surgery for rectocele alone. In conclusion, rectocele is uncommon in males; it rarely appears as an isolated dysfunction as it is often associated with functional disorders of the pelvic floor. There is a frequent association between rectocele and prostatectomy. Clinical significance and therapeutic strategy remain unknown.
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