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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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.
Patients underwent an intraesophageal/intragastric 24-hour pH study on day five.
Six study participants would have been misclassified as normal had their pH study been limited to day 1.
On day five of each treatment period, patients underwent a catheter-based, 24-hour pH study to evaluate the percent of time gastric pH was greater than 4.
Certain characteristics of these individuals have been identified and include a relatively poor indication for surgery (mildly abnormal pH study without erosive esophagitis), coexisting psychiatric diagnoses such as depression or anxiety, and chronic pain syndromes such as fibromyalgia.
A pH study detected episodes of abnormal pharyngeal reflux.
His 24-hour esophageal pH study was abnormal despite twice-a-day PPI therapy.
The typical pattern of LPR is chronic-intermittent, and therefore the diagnosis might not be straightforward because a negative pH study does not necessarily rule out LPR.