title: Syndrome X: a discussion of angina and normal coronary arteries.
abstract: Syndrome X was diagnosed in a female patient who presented with typical angina and a non-Q wave myocardial infarction, yet demonstrated normal coronary arteries. Syndrome X has been described as an impairment in normal endothelial function of the coronary microvasculature, resulting in inappropriate vasoconstriction and inadequate coronary flow reserve. In this article we review pathophysiology, diagnosis, treatment, and prognosis in a single case.
authors.affiliation: Department of Cardiology, University of Pittsburgh Medical Center, PA 15213, USA.
authors.forename: K A
authors.initials: KA
authors.lastname: Zell
authors.forename: S E
authors.initials: SE
authors.lastname: Reis
mesh_terms: D000368:Aged; D017023:Coronary Angiography; D004562:Electrocardiography; D004730:Endothelium, Vascular / Q000503:physiopathology; D004967:Estrogens / Q000494:pharmacology; D005260:Female; D006801:Humans; D017566:Microvascular Angina / Q000175:diagnosis / Q000503:physiopathology / Q000628:therapy; D011379:Prognosis
chemical_list: D004967:Estrogens