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术后已用长期内窥镜观察评价部分胃切除术后增加胃癌发生的可能性,但这一观察和一系列回顾性尸解的结果存有矛盾,故仅对少数高发胃癌危险的病例反复作内窥镜进行系统性监视。寻找这一类病例是困难的,由于胃术后低盐酸症是常见的。作者研究十二指肠溃疡手术后组织学危险因素的发生是否与空腹胃液的pH值或发生胆汁返流有关,从而用作筛选的步骤。病人和方法 36名无症状的志愿者,在7～12年前因十二指肠溃疡已行胃手术,手术方式有迷走神经干切断和幽门成形术9例,高选择性迷走神经切断8例,Polya胃次切除术9例,迷走神经干切断和幽门窦切除10例。作上消化道内窥镜检查取得胃液测定,凡
Long-term endoscopic observation has been used to evaluate the possibility of increased gastric cancer after partial gastrectomy, but this observation is inconsistent with the results of a series of retrospective autopsy, so only a few high-risk gastric cancer cases are repeated. The endoscope performs systematic monitoring. Finding this type of case is difficult due to the fact that postoperative hypochlorhydria is common. The authors investigated whether the occurrence of histological risk factors after surgery for duodenal ulcer was related to the pH of fasting gastric juice or the occurrence of bile reflux, and thus used as a screening step. Patients and Methods Thirty-six asymptomatic volunteers underwent gastric surgery for duodenal ulcer 7 to 12 years ago. There were 9 cases of vagotomy and pylorus plasty and 8 cases of highly selective vagotomy. Polya Gastric resection was performed in 9 cases, vagotomy and pyloric sinusectomy in 10 cases. Upper gastrointestinal endoscopy for gastric fluid measurement, where