Does gastro-esophageal reflux provoke the myocardial ischemia in patients with CAD?
GROUND: Gastro-esophageal reflux disease (GERD) may cause chest pain. The aim was to determine the correlation between ischemia and gastro-esophageal reflux in patients with CAD and to assess the influence of short-term “anti-reflux” therapy on the ischemia in patients with GERD and CAD. METHODS: Fifty patients with angiographically proven CAD underwent simultaneous 24-h continuous ECG and esophageal pH monitoring. We assessed the number of ST-segment depression episodes (ST dep.) and total duration of ischemic episodes, expressed as total ischemic burden (TIB). In pH-metry, we assessed: time percentage of pH lower than 4, total time of pH lower than 4 and the number of pathological refluxes (PR). Patients fulfilling the GERD criteria received a 7-day therapy with omeprazole 20 mg bid. On the 7th day of therapy, simultaneous Holter and esophageal pH monitoring was repeated. RESULTS: Total number of 224 PRs in 42 patients (84%) was recorded during esophageal pH-metry. GERD criteria were