Miller R, Bartolo D C, Roe A, Cervero F, Mortensen N J
University Department of Surgery, Bristol Royal Infirmary, England.
Dis Colon Rectum. 1988 Jun;31(6):433-8. doi: 10.1007/BF02552612.
Thermal sensation is thought to be important in sensory discrimination between different substances. The aim of this study was to determine the thermal sensitivity in the anal canal in continent patients with hemorrhoids (N = 20), a group that has been reported to have a sensory deficit, and to compare the results with control subjects (N = 40) and patients with idiopathic fecal incontinence (IFI) (N = 22). Anal manometry was performed and sensation to mucosal electrostimulation and temperature change in the lower, middle, and upper zones of the anal canal assessed. Thermal sensation was impaired in the hemorrhoid group as compared with controls, but not to the same degree as in IFI (e.g., median thermal sensitivity in mid anal canal, control 0.9 degrees C, hemorrhoid 1.2 degrees C, IFI 2.0 degrees C, P less than .05 and less than .001, respectively). The correlation between the two tests of sensation was 0.54 (P less than .001) and the reproducibility of thermal sensory thresholds was 0.82 (P less than .001). In conclusion, patients with hemorrhoids have a mild anal sensory deficit, but continence in this group is likely to be augmented by other factors.
热感觉被认为在区分不同物质的感觉辨别中很重要。本研究的目的是确定患有痔的控便患者（N = 20）肛管的热敏感性，据报道该组患者存在感觉缺陷，并将结果与对照组受试者（N = 40）和特发性大便失禁（IFI）患者（N = 22）进行比较。进行了肛门测压，并评估了肛管下、中、上区域对黏膜电刺激和温度变化的感觉。与对照组相比，痔组的热感觉受损，但程度不如IFI组（例如，肛管中部的中位热敏感性，对照组为0.9℃，痔组为1.2℃，IFI组为2.0℃，P分别小于0.05和小于0.001）。两种感觉测试之间的相关性为0.54（P小于0.001），热感觉阈值的可重复性为0.82（P小于0.001）。总之，痔患者存在轻度肛门感觉缺陷，但该组的控便能力可能由其他因素增强。
