Sørensen M, Rasmussen O O, Tetzschner T, Christiansen J
Department of Surgery D, Glostrup Hospital, University of Copenhagen, Glostrup, Denmark.
Br J Surg. 1992 Oct;79(10):1106-8. doi: 10.1002/bjs.1800791039.
The volume (V) of air inflated in a latex balloon placed in the rectum and the corresponding pressures (P) were measured in 48 subjects (24 men and 24 women) at three points: (1) earliest defaecation urge; (2) constant defaecation urge; and (3) maximum tolerable volume (MTV). The rectal pressures in all three cases were higher in men than in women. Woman aged over 60 years had higher rectal compliance (delta V/delta P) than men in the same age group, while no difference was found between men and women below the age of 60 years. Day-to-day variation of the measurements was tested in ten subjects. Reproducibility was good only for MTV (95 per cent confidence interval 57-183 per cent). Reproducibility of rectal compliance decreased with increasing values for this parameter. No such trend was found for the other parameters. In conclusion, MTV is a reproducible parameter and suitable for clinical use in evaluation of patients with faecal incontinence or constipation.
在48名受试者（24名男性和24名女性）中，测量了放置在直肠内的乳胶气球充气量（V）以及相应压力（P），测量点有三个：（1）最早排便冲动时；（2）持续排便冲动时；（3）最大耐受量（MTV）。在所有三种情况下，男性的直肠压力均高于女性。60岁以上女性的直肠顺应性（ΔV/ΔP）高于同年龄组男性，而60岁以下男性和女性之间未发现差异。对10名受试者进行了测量的每日变化测试。仅MTV的再现性良好（95%置信区间57 - 183%）。直肠顺应性的再现性随着该参数值的增加而降低。其他参数未发现此类趋势。总之，MTV是一个可重复的参数，适用于临床评估大便失禁或便秘患者。
