Angina Pectoris with Normal Coronary Arteries: Syndrome X

Angina pectoris with normal coronary arteriograms is a common entity which has puzzled cardiologists almost since the advent of coronary arteriography. Despite major advances in the understanding of the pathophysiology of angina in recent years and a multitude of studies on the subject, the cause and mechanisms underlying the syndrome of angina with normal coronary arteries remain unknown. Indeed, results of investigations are controversial and speculation still prevails regarding the nature of