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  • Title: [Defecography and treatment of essential anal pain].
    Author: Salzano A, Carbone M, Rossi E, De Rosa A, Muto M, Amodio F, Rea G, Ginolfi F.
    Journal: Radiol Med; 1999; 98(1-2):48-52. PubMed ID: 10566296.
    Abstract:
    INTRODUCTION: Proctalgia is a chronic anal pain in the absence of any organic conditions of the anorectum and excluding such morphofunctional disorders as rectal prolapse, intussusception and solitary rectal ulcer, which are easily shown with defecography but not with other imaging techniques. Proctalgia patients undergo a long workup and many instrumental and radiologic examinations and are finally referred to the proctologist with a condition which is difficult to diagnose and treat. We investigated the defecographic findings and anorectal abnormalities of essential proctalgia, as well as the correlation between radiologic findings, clinical symptoms and efficacy of biofeedback treatment. MATERIALS AND METHODS: We retrospectively examined 31 patients (21 women and 10 men; age range: 25-67 years, mean: 46) with defecography, clinico-proctologic investigations integrated with anoscopy and sigmoidoscopy, anorectal manometry and psychological tests. The women were submitted to gynecologic examination: 8 patients had a history of anorectal and pelvic surgery. We did not perform anal electromyography because it may cause painful sphincterial spasms. All patients underwent 30-minute weekly sessions of biofeedback till regression of symptoms. RESULTS: Anal pain was described as anorectal in 18 cases, anoperineal in 7, anosphincterial in 5 and rectovaginal in 1 case. It radiated to the sacrum in 42% of cases, thighs in 23%, gluteus muscles in 19%, and was related to evacuation in 39% of cases. Pain lasted some hours (58%) to a few minutes (42%). Manometric data showed sphincterial hypertonia in 14 patients. Eleven patients suffered from anxiety and were on drug treatment. Defecography demonstrated rectocele in 15 cases, puborectalis muscle syndrome in 14, external sphincter spasm in 12, perineal descent in 8, rectal muscosal prolapse in 4, intussusception in 3 and fecal incontinence in 2 cases. After 10 weeks of biofeedback training, all patients reported improvement of symptoms, which was confirmed at manometry as reduced sphincterial pressure. CONCLUSIONS: The etiology of essential proctalgia is unknown, but functional disorders of the pelvic floor and sphincterial muscles, as well as altered perineal stasis and pudendal conditions, all play an important role. These data are confirmed in our study where puborectalis syndrome, external sphincterial spasm and perineal descent are involved in over 70% of cases. Defecography is a useful tool because it permits to diagnose abnormal anorectal morphology and to diagnose sphincterial and puborectalis muscle dysfunctions which are missed with other instrumental and imaging techniques.
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