title: [Hyperventilation echocardiography in vasospastic angina pectoris diagnosing].
abstract: Hyperventilation echocardiography is an established diagnostic test in patients with suspected variant angina pectoris. It has got sufficient sensitivity (60-80%) and specificity (85-100%). Positive hyperventilation test is rarely found, which relates to low prevalence of variant angina. The diagnostic yield of the test depends on the population selected for testing: positive result can be expected in patients with a history of typical burning chest pain, ST segment elevation/depression and/or inversions of U wave during the chest pain episode, arrhythmias related to the chest pain, coronary artery stenosis less than 50% of artery diameter, multi-vessel disease, high activity of illness at the time of hyperventilation test. We present a case of 37 years old man with typical angina pectoris at rest and non-Q myocardial infarction, in whom the coronary angiography was negative. Variant angina pectoris was diagnosed by hyperventilation echocardiography. The ECG tracings showing typical ischemic patterns during the hyperventilation test are included.
authors.affiliation: Interni Klinika-kardiologicka Lekarske fakulty UP a FN Olomouc. Mkaletova@seznam.cz
authors.forename: M
authors.initials: M
authors.lastname: Kaletová
authors.forename: D
authors.initials: D
authors.lastname: Marek
authors.forename: E
authors.initials: E
authors.lastname: Sovová
authors.forename: I
authors.initials: I
authors.lastname: Mejtská
authors.forename: M
authors.initials: M
authors.lastname: Táborský
mesh_terms: D000328:Adult; D000788:Angina Pectoris, Variant / Q000175:diagnosis / Q000000981:diagnostic imaging*; D017023:Coronary Angiography; D004452:Echocardiography / Q000379:methods; D004562:Electrocardiography; D006801:Humans; D006985:Hyperventilation; D008297:Male