Combined electrophysiological technique for assessment of the cellular basis of early ventricular arrhythmias.
A new technique has been used in dogs to make combined measurements in vivo of conduction delay, action potentials, and epicardial ST-segment during myocardial ischaemia. These measurements should provide new information about ionic and metabolic cellular changes relating to the onset of ventricular arrhythmias.
D000200:Action Potentials; D000818:Animals; D003327:Coronary Disease / Q000503:physiopathology; D004285:Dogs; D004562:Electrocardiography / Q000295:instrumentation / Q000379:methods; D006321:Heart / Q000294:innervation / Q000503:physiopathology*; D006329:Heart Conduction System / Q000503:physiopathology; D008839:Microelectrodes; D009206:Myocardium / Q000473:pathology*; D013997:Time Factors; D014693:Ventricular Fibrillation / Q000175:diagnosis / Q000209:etiology*