Analysis of prognostic significance of ventricular arrhythmias after myocardial infarction. Shortcomings of Lown grading system.

Analysis of prognostic significance of ventricular arrhythmias after myocardial infarction. Shortcomings of Lown grading system.

The Lown grading system for ventricular arrhythmias has been used in observational and experimental studies of ischaemic heart disease. This grading system uses three levels of ventricular premature depolarisation frequency and four complex features to assign patients to one of seven grades. We tested several of the major assumptions of the Lown grading system in a group of 400 patients who had...

Prognostic Significance of the Lown Grades and Late Potentials in Patients after Myocardial Infarction

Background and Objectives: The aims of this study were to assess the long term overall survival of patients after an acute myocardial infarction (AMI), and to determine the association of survival with the occurrence of ventricular arrhythmia, as recorded by Holter electrocardiography (ECG) and signal-averaged electrocardiography (SAECG). Subjects and Methods: One hundred fifty two patients wit...

Prevalence and prognostic significance of ventricular arrhythmias after acute myocardial infarction in the fibrinolytic era. GISSI-2 results.

BACKGROUND Several studies performed before the advent of thrombolysis have shown that the presence of ventricular arrhythmias is an independent risk factor for subsequent mortality in patients recovering from acute myocardial infarction. Since fibrinolysis affects the natural history of infarction and may alter the clinical relevance of different risk factors, the aim of the present study was ...

Left ventricular remodeling and ventricular arrhythmias after myocardial infarction.

BACKGROUND The relation between left ventricular (LV) remodeling and ventricular arrhythmias after myocardial infarction is poorly documented. We investigated the relations between LV size, hypertrophy, and function and ventricular arrhythmias in 263 patients from the Survival and Ventricular Enlargement (SAVE) study, using quantitative 2D echocardiography and ambulatory ECG monitoring after my...

Incidence of ventricular arrhythmias in first year after myocardial infarction.