When evaluating chest pain in a patient suspected of having gastroesophageal reflux disease, what diagnostic test should be considered?

When evaluating chest pain in a patient suspected of having gastroesophageal reflux disease, what diagnostic test should be considered?

• A. CT Angiography
• B. Echocardiogram
• C. Exercise stress test
• D. Esophageal pH monitoring

Answer: (D)

When chest pain is suspected to come from gastroesophageal reflux, the goal is to document that acid reflux is actually causing the symptoms. Esophageal pH monitoring does this directly by measuring esophageal acid exposure over a period (often 24 hours) and allowing you to correlate reflux events with the patient’s chest pain episodes. If abnormal acid exposure is found and symptoms occur in temporal association with reflux, GERD is the likely cause and management can be directed accordingly, such as acid suppression therapy and lifestyle modifications. Imaging or functional tests aimed at the heart—like CT angiography, echocardiography, or an exercise stress test—are used to assess cardiac causes of chest pain and do not establish reflux as the source. Endoscopy can evaluate mucosal injury from GERD but does not quantify acid exposure or symptom correlation, which is why pH monitoring is the most informative test when GERD is suspected as the culprit.

When chest pain is suspected to come from gastroesophageal reflux, the goal is to document that acid reflux is actually causing the symptoms. Esophageal pH monitoring does this directly by measuring esophageal acid exposure over a period (often 24 hours) and allowing you to correlate reflux events with the patient’s chest pain episodes. If abnormal acid exposure is found and symptoms occur in temporal association with reflux, GERD is the likely cause and management can be directed accordingly, such as acid suppression therapy and lifestyle modifications.

Imaging or functional tests aimed at the heart—like CT angiography, echocardiography, or an exercise stress test—are used to assess cardiac causes of chest pain and do not establish reflux as the source. Endoscopy can evaluate mucosal injury from GERD but does not quantify acid exposure or symptom correlation, which is why pH monitoring is the most informative test when GERD is suspected as the culprit.