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美国卫生研究院文献>Clinics in Colon and Rectal Surgery
>Approaches and Treatment of Intussusception Volvulus Rectal Prolapse and Functional Disorders of the Colon Rectum and Anus: Functional Disorders of Constipation: Paradoxical Puborectalis Contraction and Increased Perineal Descent
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Approaches and Treatment of Intussusception Volvulus Rectal Prolapse and Functional Disorders of the Colon Rectum and Anus: Functional Disorders of Constipation: Paradoxical Puborectalis Contraction and Increased Perineal Descent
Paradoxical puborectalis contraction (PPC) and increased perineal descent (IPD) are subclasses of obstructive defecation. Often these conditions coexist, which can make the evaluation, workup, and treatment difficult. After a thorough history and examination, workup begins with utilization of proven diagnostic modalities such as cinedefecography and anal manometry. Advancements in technology have increased the surgeon's diagnostic armamentarium. Biofeedback and pelvic floor therapy have proven efficacy for both conditions as first-line treatment. In circumstances where PPC is refractory to biofeedback therapy, botulinum toxin injection is recommended. Historically, pelvic floor repair has been met with suboptimal results. In IPD, surgical therapy now is directed toward the potentially attendant abnormalities such as rectoanal intussusception and rectal prolapse. When these associated abnormalities are not present, an ostomy should be considered in patients with IPD as well as medically refractory PPC.
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