Akwari O E, Kelly K A, Phillips S F
Surg Gynecol Obstet. 1980 Mar;150(3):363-71.
Our aim was to compare the myoelectrical and motor properties of the continent ileal pouch of 19 patients with those of the terminal ileum of six patients with Brooke ileostomy. The undistended ileum in both types of ileostomy exhibited pacesetter potentials at a mean frequency of 9.1 cycles per minute during fasting upon which were superimposed the cyclic bursts of action potentials and attendant contractions characteristic of the interdigestive state. Both types of ileostomy also accommodated to distention, with intraluminal pressure being kept low as the ileum filled. However, the amplitudes of the changes in intraluminal pressure present in the pouch were less than those present in the Brooke ileum both before and during distention, and the volumes to which the ileum could be distended were far greater in the patients with ileal pouches than in those with the Brooke ileostomy. Feeding did not alter the responses to distention of either type of ileostomy. We conclude that the electrical and motor patterns of the undistended ileum are similar in both types of ileostomy, but that the anatomic and motor properties of the pouch allow it to accept far larger intraluminal volumes both during fasting and after feeding.
我们的目的是比较19例回肠贮袋患者的可控性回肠贮袋与6例布鲁克回肠造口术患者的末段回肠的肌电和运动特性。两种类型回肠造口术中未扩张的回肠在禁食期间均表现出平均频率为每分钟9.1次的起步电位，在此基础上叠加了消化间期特征性的动作电位周期性爆发和伴随的收缩。两种类型的回肠造口术也都能适应扩张，随着回肠充盈，腔内压力保持较低。然而，贮袋中腔内压力变化的幅度在扩张前和扩张期间均小于布鲁克回肠中的幅度，并且回肠贮袋患者的回肠能够扩张的体积远大于布鲁克回肠造口术患者。进食并未改变两种类型回肠造口术对扩张的反应。我们得出结论，两种类型回肠造口术中未扩张回肠的电活动和运动模式相似，但贮袋的解剖和运动特性使其在禁食期间和进食后能够接受大得多的腔内体积。
