title: [Diagnostic innovations in electrophysiology. Variance ECG].
abstract: Variance ECG constitutes an important technological and methodological advance in electrocardiography (ECG). The variance index has been found to diagnose ischaemic heart disease at least as well as myocardial scintigraphy, and considerably better than exercise testing. Exercise testing detects acute myocardial ischaemia provoked by physical exertion, whereas resting variance ECG findings presumably reflect any deficiency in the regulation of electrical impulse distribution due to structural changes and chronic low-grade ischaemia that may occur in patients with coronary artery disease.
authors.affiliation: Hjärtsektionen, Huddinge Sjukhus.
authors.forename: I
authors.initials: I
authors.lastname: Hagerman
authors.forename: J
authors.initials: J
authors.lastname: Nowak
authors.forename: C
authors.initials: C
authors.lastname: Sylvén
mesh_terms: D003327:Coronary Disease / Q000175:diagnosis*; D004562:Electrocardiography / Q000379:methods*; D005080:Exercise Test; D006801:Humans; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted
vernacular_title: Diagnostiskt nytänkande inom elektrofysiologin. Varians-EKG.