Stanciu C, Bennett J R
Digestion. 1977 Feb;15(2):104-9. doi: 10.1159/000197991.
Continuous oesophageal pH measurements have been used to assess the influence of posture (lying, sitting, bed-up) on gastro-oesophageal reflux. The percentage of time during which oesophageal pH was below 5 and the number of reflux episodes was significantly reduced when patients were in bed-up position than when sitting or lying. There was no significant difference when sitting and lying positions were compared. The results suggest that by adopting the bed-up position (elevation of the head end of the bed with blocks of 28 cm), the patient will have a symptomatic benefit, the frequency of reflux is decreased, and acid clearing is improved.
连续食管pH测量已被用于评估姿势（躺卧、坐姿、床头抬高）对胃食管反流的影响。与坐姿或躺卧时相比，患者处于床头抬高位置时，食管pH低于5的时间百分比和反流发作次数显著减少。比较坐姿和躺卧姿势时，没有显著差异。结果表明，通过采用床头抬高姿势（用28厘米的垫块抬高床头），患者将获得症状改善，反流频率降低，酸清除能力提高。
