The effect of stool consistency on rectal and neorectal emptying.
The effect of stool consistency on rectal and neorectal emptying.
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粪便稠度对直肠和新直肠排空的影响。
DOI：
10.1007/bf02050199
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发表时间：
1991
影响因子：
3.9
通讯作者：
Zinsmeister,AR
中科院分区：
文献类型：
--
作者：
Ambroze,WL;Pemberton,JH;Bell,AM;Brown,ML;Zinsmeister,AR
虽然粪便硬度被认为是肛门直肠炎的重要组成部分，但其对直肠排空的影响从未被量化。在12名健康志愿者和12名回肠贮袋-肛门吻合术（IPAA）后（术后46±5个月;平均值± SEM）的患者中，进行了灌注肛门测压;肛门直肠角的运动通过直肠造影定量;直肠容量和顺应性通过三种输注速率下的直肠内气囊充气测量。通过γ照相机成像定量三种浓度（5%，液体; 7.5%半固体凝胶; 11.25%固体凝胶; w/w）的Tc 99 m标记的人工粪便（硅酸铝镁凝胶）的直肠排空效率。在对照组和患者组中均未发现骨盆底功能异常。IPAA患者的平均直肠容量和顺应性与对照组无差异（容量; IPAA：215±22 mlvs.对照; 245±29 ml;顺应性; IPAA：5.5±0.7 ml/cm H2Ovs.对照组：6.6± 0.7ml/cm H2O;P>0.05）。在对照组中，7.5%稠度的排空百分比（81± 5%，平均值± SEM）显著高于5%稠度的排空百分比（67± 7%）或11.25%稠度的排空百分比（77± 2%）（P<0.05）。IPAA后，三种粪便的平均总排泄百分比显著低于对照组（IPAA后52± 6%;对照组75± 5%，P<0.05）。液体、半固体和固体凝胶的直肠排空率分别为56±6，55±6，51± 9%，无显著性差异（P>0.1）。我们的结论是，在健康受试者，但不IPAA后的患者，粪便的一致性影响肠道内容物的排空效率。
Although stool consistency is considered to be an important component of anorectal continence, its effect on rectal emptying has never been quantitated. In 12 healthy volunteers and 12 patients after ileal pouch-anal anastomosis (IPAA) (46±5 months after the operation; mean ± SEM), perfused anal manometry was performed; movements of the anorectal angle were quantitated scintigraphically; and rectal capacity and compliance were measured by air insufflation of an intrarectal balloon at three infusion rates. The efficiency of rectal evacuation of three consistencies (5 percent, liquid; 7.5 percent semisolid gel; 11.25 percent solid gel; w/w) of Tc99m labeled artificial stool (aluminum magnesium silicate gel) was quantitated by gamma camera imaging. No abnormalities of pelvic floor function were demonstrated in either controls or patients. The mean neorectal capacity and compliance of patients with IPAA did not differ from control, (capacity; IPAA: 215±22 mlvs. control; 245±29 ml; compliance; IPAA: 5.5±0.7 ml/cm H2Ovs. control; 6.6±0.7 ml/cm H2O;P>0.05). In controls, the percentage of the 7.5 percent consistency evacuated (81±5 percent, mean ± SEM) was significantly more than the percentage evacuation of either the 5 percent consistency (67±7 percent) or the 11.25 percent consistency (77±2 percent) (P<0.05). After IPAA, the mean overall percent evacuation of the three stool consistencies was significantly less than control (52±6 percent after IPAA; 75±5 percent control,P<0.05). However, there was no significant difference in neorectal emptying between the liquid, the semisolid gel and the solid gel (56±6, 55±6, 51±9 percent, respectively,P>0.1). We concluded that in healthy subjects but not in patients after IPAA, stool consistency affected the efficiency of evacuation of enteric content.