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目的了解消化性溃疡患儿胃pH值的动态变化。方法对25例经胃镜确诊的消化性溃疡患儿作24小时胃pH值测定,25例健康儿作对照组。结果胃溃疡和十二指肠溃疡患儿各项胃pH值监测指标的差异无显著意义(P>0.05);溃疡组胃pH平均值、平均中位数低于对照组(1.8±0.5比2.3±0.6,1.4±0.4比1.7±0.5,P分别<0.01、<0.05),而胃pH值<2和<3的时间百分比则高于对照组(74.8±13.7比62.8±152,85.9±8.6比74.2±13.1,P均<0.01);溃疡组夜间胃pH平均值、平均中位数低于白天(1.6±0.5比2.1±0.5,1.3±0.4比1.6±0.5,P<0.01),而夜间胃pH值<2和<3的时间百分比则高于白天(83.2±14.0比66.2±19.9,92.1±8.1比79.7±12.7,P均<0.01)。结论小儿消化性溃疡时胃酸分泌增多,夜间胃酸分泌明显多于白天,提示抑制夜间胃酸分泌是治疗小儿消化性溃疡的重要环节
Objective To understand the dynamic changes of gastric pH in children with peptic ulcer. Methods Twenty-five children with peptic ulcer diagnosed by endoscopy were enrolled in this study. The 24-hour stomach pH was measured and 25 healthy children served as the control group. Results There was no significant difference in gastric pH value between children with gastric ulcer and duodenal ulcer (P> 0.05). The average value of gastric pH in gastric ulcer group was lower than that of control group ± 0.5 vs. 2.3 ± 0.6, 1.4 ± 0.4 vs. 1.7 ± 0.5, P <0.01, <0.05, respectively) whereas gastric pH <2 and < 3 was higher than the control group (74.8 ± 13.7 vs 62.8 ± 152, 85.9 ± 8.6 vs 74.2 ± 13.1, P <0.01 respectively); Night gastric gastric ulcer average, mean median was lower than during daytime (1.6 ± 0.5 vs 2.1 ± 0.5, 1.3 ± 0.4 vs 1.6 ± 0.5, P < 0.01), while the percentages of nocturnal gastric pH values <2 and <3 were higher than those during daytime (83.2 ± 14.0 vs 66.2 ± 19.9, 92.1 ± 8.1 vs 79.7 ± 12.7, P <0.01). Conclusion Gastric acid secretion in children with peptic ulcer increased, gastric acid secretion during night significantly more than during the day, suggesting that inhibition of nocturnal gastric acid secretion is an important part of the treatment of children with peptic ulcer