In clinical practice, there is too often given to cardiac cause in explanation of chest pain and too little regard in paid to local structual causes. The purpose of this study was to evaluate frequency and clinical findings of noncardiac chest pain, initially believed to be cardiac in origin, were evaluated by chest X0ray, serial electrocardiogram, echocardiogram 24hours Halter monitering, Thallium²⁰¹ Heartscan, treadmill test, and cardiac angiogram. We found 50 patients without any abnormality on above examination and evaluate to identify noncardiac cause of anginal pain, including 24 hours PH monitoring, careful physical examination for musculoskeletal system, and occasionally cervical X-ray and electro-myography.

As a result, 50 patients(26.7%) had noncardiac anginal pain with no evidence whatever of underlying cardiac disease, and 17 patients(10.2%) with musculoskeletal problem cause anginal chest pain. Careful analysis of the history, physical findings, and recognition of noncardiac chest pain are essential to precise diagnosis and effective treatment of both cardiac and noncardiac chest pain.