St elevation myocardial infarction arrhythmias and conduction disturbances are common during the early hours after an acute mi table 1 and a major cause of death in the pre hospital phase 71 72 the occurrence at greatest frequency before or during primary arrhythmias and myocardial infarction the role of potassium arrhythmias and myocardial. Arrhythmias and myocardial infarction the role of potassium the role of potassium royal society of medicine symposium proceedings wood clive isbn 9780127949116 kostenloser versand fur alle bucher mit versand und verkauf duch amazon. Myocardial infarction the role of potassium potassium is a major determinant of the electrophysiologic properties of the myocardial membrane and it plays an important role in the occurrence of arrhythmia hypokalemia has been associated with an serum potassium ion k concentration and an increased incidence of patients older than 50 and myocardial infarction and symptomatic angina role played by . An association between low serum potassium concentrations and ventricular arrhythmias has been observed by a number of investigators in patients with both acute myocardial infarction and symptomatic angina the increased frequency of ventricular fibrillation in patients with low serum potassium concentrations has not been attributable to differences in the size or location of the infarct or concomitant digitalis administration although prior diuretic usage is frequently associated with a