Nightingale J M, Lennard-Jones J E
St Mark's Hospital, London, UK.
Eur J Gastroenterol Hepatol. 1995 Oct;7(10):989-91. doi: 10.1097/00042737-199510000-00015.
The normal adult human small intestinal length, measured surgically or at autopsy from the duodeno-jejunal flexure, ranges from 275 to 850 cm. The length is generally shorter in women than in men. Patients with a short bowel have often had relatively little bowel resected and the majority of patients are women. We aimed to determine whether patients with a short bowel had a short small intestinal length before any resections.
In 11 patients (six men and five women) with Crohn's disease and less than 200 cm residual small intestine, both the residual length of small intestine and the amount resected were measured.
Patients had a median of four resections (range 1-5). The median length of small bowel resected was 120 cm (range 60-165 cm) and the medium length of small bowel remaining was 125 cm (range 90-185 cm). Thus, the calculated median original small intestinal length was 240 cm (range 205-315 cm).
Although there may have been some bowel shortening as a result of Crohn's disease, the original small intestinal length before any resections was short. It is therefore more important, after performing a bowel resection, to measure the remaining than the resected bowel length. Patients with Crohn's disease and a short bowel may have had a short but 'normal' small intestinal length before any bowel was resected.
正常成年人类小肠长度，通过手术测量或尸检从十二指肠空肠曲开始测量，范围为275至850厘米。女性的小肠长度通常比男性短。短肠患者通常切除的肠段相对较少，且大多数患者为女性。我们旨在确定短肠患者在任何切除手术之前小肠长度是否就较短。
对11例克罗恩病患者（6例男性和5例女性）进行研究，这些患者剩余小肠长度不足200厘米，测量其剩余小肠长度和切除的肠段长度。
患者平均接受了4次切除手术（范围为1至5次）。切除的小肠中位长度为120厘米（范围为60至165厘米），剩余小肠的中位长度为125厘米（范围为90至185厘米）。因此，计算得出的原始小肠中位长度为240厘米（范围为205至315厘米）。
尽管克罗恩病可能导致了一定程度的肠管缩短，但在任何切除手术之前原始小肠长度就较短。因此，在进行肠切除术后，测量剩余肠管长度比测量切除的肠管长度更为重要。患有克罗恩病且小肠较短的患者在任何肠切除手术之前可能就具有较短但“正常”的小肠长度。
