A simplified QRS scoring system for the estimation of the severity of acute inferior wall myocardial infarction.

Electrocardiographic assessment of the R/Q wave ratio (lead 2) of patients with a first acute inferior wall myocardial infarction (IWMI) offers important indirect quantitative information regarding the severity and extent of the myocardial damage. Eighty-eight consecutive patients with IWMI were investigated by echocardiography and radionuclear angiography. After measuring the R/Q ratio in lead 2 during the ST-wave stabilized stage of myocardial infarction, patients were separated into three groups--group 1 with an R/Q ratio greater than 2; group 2 with an R/Q ratio between 1 to 2; and group 3 with an R/Q ratio less than 1. Utilizing the information thus gathered from the electrocardiogram (ECG) offers a simple and efficient method for early prognosis which merits further investigation.