Effect of severity of "risk region" on therapeutic intervention of myocardial infarction size.

ABSTRACT

Isosorbide dinitrate was tried in 27 patients of acute myocardial infarction (AMI) with the purpose of reduction of infarction size. Overall average effect was not significant. But, it was found that, the small and moderate "predicted infarction size" (PIS) group of patients, were benefitted by the drug therapy. Effectiveness in the therapeutic intervention on ischaemic injury bore an inverse relation with the degree of PIS or the "risk region". Varying "risk region" may be an important factor responsible for the apparent discrepancy between results of different workers regarding therapeutic intervention of infarction size.