pH study

pH study

12 to 24 hr pH study GI disease A procedure that places a probe in the distal esophagus, to evaluate acid reflux and the need for medical or surgical therapy Indications Suspected or evaluate therapy for GERD or nocturnal pulmonary aspiration of gastric contents. See GERD.
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When impedance testing is paired with the dual probe pH study, it provides the most descriptive information.
At another institution, a pH study demonstrated abnormal esophageal acid exposure, and a fundoplication was being considered.
In patients with persistent typical GORD symptoms despite twice daily PPI therapy, standard transnasal oesophageal pH monitoring is most likely to be normal, but where adequate acid suppression is in question, a 24-hour pH study while taking medications can help to quantify the effectiveness of acid control.
Despite the presence of such symptoms, 80%-90% of patients with eosinophilic esophagitis will have a normal 24-hour pH study.
The two most useful tests for children with suspected GERD include a 24-hour esophageal pH study and upper endoscopy, he said.
Six study participants would have been misclassified as normal had their pH study been limited to day 1.
A baseline 24-hour intraesophageal pH study was performed in 10 patients and in all patients following treatment with omeprazole.
The indications for a pH study were suspicion of GORD on the basis of regurgitation, heartburn, dysphagia, chest pain, or respiratory symptoms.
Only 2 of the 33 children had not refused a conventional pH study.
A pH study detected episodes of abnormal pharyngeal reflux.