方法：以前测量通透性有效的方法主要是依靠于暂态流诱导的松弛压。
Methods. A previously validated method for measuring permeability, based on the relaxation pressure caused by a transient-flow rate was used.
排便时IBS便秘组患者的肛管松弛压高于正常对照组（P< 0 .0 5 ）。
Relaxation pressure of sphincter during defecation was higher in constipation group of IBS than that in normal subjects (P<0.05).
结果癔球症组UES长度、静息压、松弛压及松弛率与正常对照组比较均无显著差异（P >0 .0 5 ）。
Results Compared with control group, the UES length, resting pressure, relax pressure and relax rate in globus sensation group had not significantly different (P>0.05).
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