Defecography; constipation; Obstruction of functional outlet; Intractable constipation.

排粪造影；便秘；功能性出口梗阻；顽固性便秘。

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Surgical intervention is only indicated in a small group of patients with intractable constipation failed to conservative treatment.

只有少数经保守治疗无效的顽固性便秘患者需要手术治疗。

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Objective To study the therapeutic value of colonic exclusion (CE) on intractable slow transit constipation (STC) and evaluate its influence on intestinal function.

目的研究结肠旷置术（CE）治疗顽固性慢传输型便秘（STC）的临床价值及其对肠道功能的影响。

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