慢性便秘症 (便排出障害) に対する排便造影検査における形態異常の検討.

Aim: Five hundred twenty-five patients undergoing defecography (297 females), with a median age of 68 (range, 17 – 93), were enrolled in this study. Results: The findings of each of (overlapping) rectocele, wide rectum, intussusception, sigmoidcele, paradoxical puborectalis contraction, puborectalis insufficiency of relaxation, stuck pelvic floor, poor anal canal opening, perineal descent, and serrated rectum were investigated. Regarding gender differences (female vs. male), females were more likely to have rectocele (p < 0.0001), wide rectum (p = 0.0309) and perineal descent (p < 0.0001). Meanwhile, males were more likely to have puborectalis insufficiency of relaxation (p < 0.0001) and stuck pelvic floor (p < 0.0001). In addition, when investigated separately for structural defecation disorder and functional defecation disorder, structural was more common in females (p < 0.0001), functional was more in males (p < 0.0001), and both of them were observed more commonly in females (p = 0.0006). Conclusion: It is considered that defecation disorder can be diagnosed only by defecography in females but in males, additional tests such as anorectal manometry are more needed. [ABSTRACT FROM AUTHOR]