What is the etiology of cardiac syndrome X?
Non-cardiac chest pain remains a widespread symptom especially in western countries with a significant economic burden. Patients with chest pain and abnormal electrocardiographic (ECG) but normal coronary angiogram (i.e. exclusion of coronary heart disease) is termed Cardiac syndrome X (CSX) and represents a specific subform of non-cardiac chest pain. While etiology of non-cardiac chest pain has been studied in several projects, it is unclear in what extent CSX is based on disorders of the upper gastrointestinal disorder (GI) tract. A research group in Aachen, Germany, interviewed 119 patients with abnormal ECG findings after having received a normal coronary angiogram. …
