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Accurate positioning of the 24-hour pH monitoring catheter:Agreement between manometry and pH step-up method in two patient positions

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World Journal of Gastroenterology 2007年第46期13卷 6197-6202页

作者： Mehmet Fatih Can Gokhan Yagci Sadettin Cetiner Mustafa Gulsen Taner Yigit Erkan Ozturk semih gorgulu Turgut Tufan Departments of General Surgery Gulhane Military Medical AcademyEtlikAnkaraTurkey "Reflux Research Group"Gulhane Military Medical AcademyEtlikAnkaraTurkey Gastoenterology and Hepatology Gulhane Military Medical AcademyEtlikAnkaraTurkey "Reflux Research Group"Gulhane Military Medical AcademyEtlikAnkaraTurkey Departments of General Surgery Gulhane Military Medical AcademyEtlikAnkaraTurkey

AIM： TO investigate the agreement between esophageal manometry and pH step-up method in two different patient positions. METHODS： Eighteen subjects were included in the study. First, the distance from the nose to the proximal border of the lower esophageal sphincter （LES） was measured manometrically. Then a different investigator, who was blinded to the results of the first study, measured the same distance using the pH step-up method, with the patient in both upright and supine positions. An assessment of agreement between the two techniques was performed. RESULTS： In the supine position, the measurement of only one subject was outside the range accepted for correct positioning （~〈 3 cm distal or proximal to the LES）. In the upright position, errors in measurement were recognized in five subjects. Bland-Airman plots revealed good agreement between measurements obtained manometrically and by the pH-step up method with the patient in the supine position. CONCLUSION： In the case of nonavailability of manometric detection device, the pH step-up method can facilitate the positioning of the 24 h pH monitoring catheter with the patient in the supine position. Thisshould increase the use of pH-metry in clinical practice for subjects with suspected gastroesophageal reflux disease if our results are supported by further studies.

关键词： pH monitoring Esophageal manometry pHstep-up method Gastroesophageal reflux

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