[Extrasystole with narrow atrial complex in left bundle-branch block].
D000368:Aged; D002037:Bundle-Branch Block / Q000150:complications / Q000503:physiopathology*; D005117:Cardiac Complexes, Premature / Q000150:complications*; D004562:Electrocardiography; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged
Ekstrasistole sa uzim komorskim kompleksom u bloku leve grane Hisovog snopa.