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目的:运用经会阴超声对产后女性肛管直肠角进行观察,探讨角度变化的意义。方法:对自然分娩、剖宫产及正常未育女性各100例,运用腔内探头经会阴超声观察后盆腔,分别测量静息状态、缩肛状态及最大Valsalva动作时肛管直肠前角及后角的大小。结果:各组在缩肛状态及最大Valsalva动作时,肛直肠前角、后角均较静息状态时缩小。最大Valsalva动作时前角缩小率大于后角缩小率,差异具有统计学意义(P<0.05)。阴道分娩组、剖宫产组与未育组比较,最大Valsalva动作时前角缩小率较小,差异具有统计学意义(P<0.05)。阴道分娩组与剖宫产组比较,缩肛状态及最大Valsalva动作时肛直肠前角、后角的缩小率差异无统计学意义(P>0.05)。结论:经会阴超声分别观察肛直肠前角、后角,可间接反映相应耻骨阴道肌或耻骨直肠肌的肌力变化。
OBJECTIVE: To observe the anal canal rectum of postpartum women through perineal ultrasound to explore the significance of angle changes. Methods: 100 cases of natural childbirth, cesarean section and normal non-pregnant women were enrolled in this study. The pelvic cavity was observed with percutaneous transluminal ultrasound via the probe of the perineal cavity. The resting state and the status of the anus and maxillary Valsalva were measured respectively. The size of the corner. Results: In the group of anal contraction and maximal Valsalva, the anterior and rectal angle of anus and anterior horn decreased when compared with resting state. The maximum reduction rate of Valsalva’s motion was larger than the reduction rate of posterior horn, the difference was statistically significant (P <0.05). Vaginal delivery group, cesarean section group compared with the non-education group, the maximum Valsalva action anterior horn reduction rate was smaller, the difference was statistically significant (P <0.05). Vaginal delivery group compared with the cesarean section, anal contraction state and maximum Valsalva action anorectal anterior horn, angle reduction rate was no significant difference (P> 0.05). Conclusion: The anterior and posterior horn of anus and rectum were observed respectively by perineal ultrasound, which could indirectly reflect the change of muscle strength of corresponding pubis pubesis muscle or puborectalis muscle.