目的 探讨胃窦超声下老年人结肠镜检查肠道准备饮水全程中胃排空特点。方法 选取2024-04至2024-09北京某两家三级甲等医院住院行结肠镜检查的老年患者108例,应用胃窦超声单平面测量法,测量空腹及5次饮水后各时点胃窦横截面积,通过公式法计算胃排空率。结果 99例老年患者完成胃窦超声监测,首次排便分布在第1～4次饮水期间,第3次饮水后即刻胃窦横截面积达到全程最大值,平均值为32.94～38.64 cm2(500～600 ml),首次排便后胃排空率高于排便前,有统计学差异(P＜0.05),可达47.54%～55.09%。结论 老年人肠道准备饮水前期胃排空迟缓,首次排便后胃排空率增快。依据老年人胃排空特点指导饮水过程关键点干预措施,可提高其饮水舒适性、安全性。
Abstract
Objective To investigate the characteristics of gastric emptying during the entire water drinking process for bowel preparation for colonoscopy in elderly patients. Methods A total of 108 elderly patients who underwent colonoscopy in two grade A hospitals in Beijing from April to September 2024 were selected. Gastric antral cross-sectional area (CSA) was measured via single-plane ultrasonography at fasting and after five water drinking intervals. Gastric emptying rate (GER) was calculated using a standardized formula. Results Ninety-nine elderly patients completed gastric antral ultrasonography monitoring. The first defecation occurred between the 1st and 4th water drinking intervals. The gastric antral CSA reached its peak (mean: 32.94 cm2-38.64 cm2, equivalent to 500 ml-600 ml) immediately after the 3rd water intake. Post-defecation gastric emptying rates were significantly higher than pre-defecation rates (47.54%-55.09%, P< 0.05). Conclusions Gastric emptying is delayed during the early phase of water intake for bowel preparation in elderly patients but accelerates after the first defecation. Tailoring hydration strategies based on these gastric emptying characteristics may improve comfort and safety during bowel preparation.
关键词
老年人 /
肠道准备 /
超声检查 /
胃窦横截面 /
胃排空率
Key words
the elderly /
bowel preparation /
ultrasonography /
transverse section of gastric antrum /
gastric emptying rate
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基金
全程多功能结肠镜检查管理平台的探索与应用(20BJZ29 )
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