Esophageal pH monitoring: Difference between revisions
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The data collected from the pH probe is analyzed to determine the frequency and duration of acid reflux episodes. The DeMeester score is a commonly used metric to quantify acid exposure in the esophagus. | The data collected from the pH probe is analyzed to determine the frequency and duration of acid reflux episodes. The DeMeester score is a commonly used metric to quantify acid exposure in the esophagus. | ||
The DeMeester score takes into account several factors, including the total time the pH is below 4, the number of reflux episodes, and the duration of the longest episode. A score above a certain threshold indicates abnormal acid exposure. | The DeMeester score takes into account several factors, including the total time the pH is below 4, the number of reflux episodes, and the duration of the longest episode. A score above a certain threshold indicates abnormal acid exposure. | ||
Latest revision as of 18:39, 21 February 2025
Esophageal pH Monitoring[edit]
Esophageal pH monitoring is a diagnostic procedure used to measure the pH or acidity level in the esophagus over a 24-hour period. This test is primarily used to diagnose gastroesophageal reflux disease (GERD) and to evaluate the effectiveness of medications that prevent acid reflux.
Procedure[edit]
The procedure involves the insertion of a thin, flexible tube through the nose and into the esophagus. This tube, known as a pH probe, is equipped with a sensor that measures the pH level. The probe is connected to a small recording device worn on the patient's belt or shoulder.
In some cases, a wireless pH monitoring system, such as the Bravo system, may be used. This involves attaching a small capsule to the lining of the esophagus during an endoscopy. The capsule transmits pH data to a receiver worn by the patient.
Indications[edit]
Esophageal pH monitoring is indicated for patients who:
- Have symptoms of GERD that do not respond to treatment
- Are being considered for antireflux surgery
- Have atypical symptoms such as chronic cough, laryngitis, or asthma suspected to be related to acid reflux
Interpretation of Results[edit]
The data collected from the pH probe is analyzed to determine the frequency and duration of acid reflux episodes. The DeMeester score is a commonly used metric to quantify acid exposure in the esophagus.
The DeMeester score takes into account several factors, including the total time the pH is below 4, the number of reflux episodes, and the duration of the longest episode. A score above a certain threshold indicates abnormal acid exposure.
Complications[edit]
Esophageal pH monitoring is generally safe, but some patients may experience discomfort from the probe. Rare complications include nasal bleeding, sore throat, or esophageal perforation.
