[The association of ventricular pre-excitation--acute myocardial infarct. The dysrhythmic outcomes].

The clinical manifestations of ventricular preexcitation, generally considered benign, may sometimes show the most unpredictable and severe evolution. Although ventricular tachyarrhythmias (those of ventricular aspect excepted) are extremely uncommon in ventricular preexcitation, cases of sudden death were nevertheless reported, their mechanism being the ventricular fibrillation. The authors have followed up the evolution of 12 patients (11 males, age between 38 and 72 years with a mean of 56 years) with acute myocardial infarction and coexistent ventricular preexcitation, previously depressed or newly detected, admitted during the last 10 years at the Coronary Unit of Iaşi. It is concluded that the association ventricular preexcitation--acute myocardial infarction represents a severe risk factor by sensibly increasing the arrhythmogenic potential.