The pelvic organ prolapse repair acts as a confounding factor. Women with a pre-operative rectocele and detrusor overactivity are on a greater risk to develop post-operative detrusor overactivity and, therefore, they should be informed.
Introduction: The periurethral electromyography (EMGs) alterations in men who underwent pelvic radiotherapy (RT), either isolated or combined with surgery, have not been frequently described in the literature. Objective: The study aimed to compare the EMG's data in men undergoing RT versus the non-irradiated control group. Material and Methods: The study included 61 consecutive males, who had undergone RT (27 of them had been operated) and 99 control consecutive patients who underwent a retrospective assessment. The EMGs were performed using a concentric electrode needle perineally, localizing the sphincter by visual and auditory signal (electromyograph MMS Solar Active). Results: 14.8% denervation, 62.9% reinnervation, 14.9% denervation + reinnervation and 7.4% EMG normal. The age (p < 0.001) and neurogenic bladder data (p < 0.001) are risk factors. The smaller the prostate size (obtained by rectal examination) post-RT, the more the chance for an abnormal EMG (p < 0.001). The fact of having had received RT (p < 0.001) is the only risk factor. Conclusion: RT produces lesions over the pudendal nerve, showing denervation even in late periods. The surgery did not behave as a risk factor.
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