A QRS scoring system for assessing left ventricular function after myocardial infarction.

Journal Article (Journal Article)

A QRS scoring system for estimating the size of a myocardial infarct was evaluated in 55 patients who did not have left ventricular hypertrophy or conduction abnormalities. Serial 12-lead surface electrocardiograms were scored according to a 29-point system based on the duration of Q and R waves and on the ratios of R-to-Q amplitude and R-to-S amplitude. The scores were proportional to the severity of wall-motion abnormalities, which was determined by radionuclide blood-pool scanning and which correlated inversely with the radionuclide-determined left ventricular ejection fraction (LVEF). A score less than 3 was 93 per cent sensitive and 88 per cent specific for both severe regional dyssynergy and major depression of the global LVEF. The following equation was used to estimate the LVEF from the QRS score: LVEF (%) = 60 - (3 x QRS score). After acute myocardial infarction, an electrocardiogram can provide important indirect quantitative information about left ventricular function.

Full Text

Duke Authors

Cited Authors

  • Palmeri, ST; Harrison, DG; Cobb, FR; Morris, KG; Harrell, FE; Ideker, RE; Selvester, RH; Wagner, GS

Published Date

  • January 7, 1982

Published In

Volume / Issue

  • 306 / 1

Start / End Page

  • 4 - 9

PubMed ID

  • 7053469

International Standard Serial Number (ISSN)

  • 0028-4793

Digital Object Identifier (DOI)

  • 10.1056/NEJM198201073060102

Language

  • eng

Conference Location

  • United States