2010
DOI: 10.1111/j.1442-2050.2010.01152.x
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Abstract: Manometric location of the lower esophageal sphincter (LES) has been mandatory before esophageal pH monitoring, despite costs and discomfort related with esophageal manometry. The aims of the study were: (i) to map the pH of the gastroesophageal junction (GEJ) to determine a pH turning point (PTP) and its relation with LES; and (ii) to test the feasibility of this technique to orientate esophageal pH monitoring. We studied 310 adult patients who underwent esophageal manometry and pH monitoring off acid-suppres… Show more

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Cited by 4 publications
(2 citation statements)
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References 42 publications
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“…In each session, patients were examined after 6 h fasting, in the afternoon. A pH mapping of the gastroesophageal junction was carried before the first fMRI to determine a pH turning point (PTP). A catheter was then inserted transnasally and positioned 7 cm above the PTP, allowing infusion of solutions in the distal esophagus.…”
Section: Methodsmentioning
confidence: 99%
“…In each session, patients were examined after 6 h fasting, in the afternoon. A pH mapping of the gastroesophageal junction was carried before the first fMRI to determine a pH turning point (PTP). A catheter was then inserted transnasally and positioned 7 cm above the PTP, allowing infusion of solutions in the distal esophagus.…”
Section: Methodsmentioning
confidence: 99%
“…The pH sensor was positioned in the distal esophagus, either 5 cm above the lower esophageal sphincter when manometrically determined or 5 cm above the pH turning point, as defined by a gastroesophageal pH mapping. 16 Patients in the sitting position were instructed to swallow orange juice (Suvalan, Natural Products Ltda, Brazil; pH ~3) as follows: 10 mL offered with a syringe, and simultaneous monitoring of pH drop in the recorder display, followed by 5 rapid multiple swallows of juice soon after recovery of pH to 5 from the initial 10 mL swallow. Potential adverse reactions related to the juice test were registered.…”
Section: Juice Test and Esophageal Ph Monitoringmentioning
confidence: 99%