Evaluation of a QRS scoring system for estimating myocardial infarct size. IV. Correlation with quantitative anatomic findings for posterolateral infarcts

Richard M. Ward, Richard D. White, Raymond E. Ideker, Nancy B. Hindman, Daniel R. Alonso, Sanford P. Bishop, Colin M. Bloor, John T. Fallon, Geoffery J. Gottlieb, Donald B. Hackel, Grover M. Hutchins, Harry R. Phillips, Keith A. Reimer, Steven F. Roark, Satyabhlashi P. Rochlani, William J. Rogers, Wayne K. Ruth, Robert M. Savage, James L. Weiss, Ronald H. SelvesterGalen S. Wagner

Research output: Contribution to journalArticlepeer-review

Abstract

This study correlated the location and size of posterolateral myocardial infarcts (Mls) measured anatomically with that estimated by quantitative criteria derived from the standard 12-lead ECG. Twenty patients were studied who had autopsy-proved, single, posterolateral Mls and no confounding factors of ventricular hypertrophy or bundle branch block in their ECG. Left ventricular anatomic Ml size ranged from 1 to 46%. No patient had a ≥ 0.04-second Q wave in any electrocardiographic lead and only 55% had a 0.03-second Q wave. A 29-point, simplified QRS scoring system consisting of 37 weighted criteria was applied to the ECG. Points were scored by the ECG in 85% of the patients (range 1 to 8 points). Ml was indicated by a wide variety of QRS criteria; 19 of the 37 criteria from 8 different electrocardiographic leads were met. The correlation coefficient between MI size measured anatomically and that estimated by the QRS score was 0.72. Each point represented approximately 4% Ml of the left ventricular wall.

Original languageEnglish (US)
Pages (from-to)706-714
Number of pages9
JournalThe American journal of cardiology
Volume53
Issue number6
DOIs
StatePublished - Mar 1 1984

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

Fingerprint Dive into the research topics of 'Evaluation of a QRS scoring system for estimating myocardial infarct size. IV. Correlation with quantitative anatomic findings for posterolateral infarcts'. Together they form a unique fingerprint.

Cite this