Bergoz R, de Peyer R
Schweiz Med Wochenschr. 1979 Apr 21;109(16):605-6.
Intestinal lactase assays before and after a Billroth II procedure for chronic duodenal ulcer did not reveal a significant difference. Postoperative lactose intolerance is due to the loss of pyloric function, causing entrance of lactose into the jejunum at a rate exceeding the hydrolytic capacity of the mucosa if the lactase level is low.
针对慢性十二指肠溃疡进行毕罗Ⅱ式手术后，肠道乳糖酶检测结果显示，手术前后并无显著差异。术后乳糖不耐受是由于幽门功能丧失，若乳糖酶水平较低，会导致乳糖以超过黏膜水解能力的速率进入空肠。
