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Search and discover over 2,500 ECG reports written by cardiologist and intensivist Dr George Nikolić OAM.
Fixed-Rate Pacemaker
Report: Sinus rhythm 1 Left bundle branch block 3 Fixed-rate (asynchronous) ventricular pacemaker 39/min 6 Comment: Large spikes denote a unipolar pacemaker, a feature not seen in temporary pacemakers. The slow rate would normally imply the battery de
Unusual Mechanism of Escape-Capture Bigeminy
Report: Sinus rhythm 0.5 SVEBs, blocked, in (atrial) trigeminy 2 AV sequential pacemaker, atrial-sensing (probably DDD) 0.5 Failure to sense SVEBs 4 Atrial-paced escape beats 0.5 Ventricular bigeminy (atrial trigeminy!) 2 Nonspecific T wave changes
Primary T Wave Changes
Report:Ventricular pacemaker rhythm 60/min 3 1:1 retrograde conduction 2 Primary T wave changes V1-3 5 Comment:T waves concordant with the QRS complex are no more expected in paced beats than in LBBB: their orientation is due to a myocardial factor rat
Low-Atrial Pacemaker
Report:Atrial pacemaker rhythm 70/min 2 Retrograde P wave pattern 7 Nonspecific T wave changes 1 Comment:At first I thought the electrode had been inserted into the coronary sinus. It turned out the heart had been paced more conventionally through the
R-on-T Pacing
Report:Sinus tachycardia 106/min 1 Fixed-rate ventricular pacemaker rhythm 58/min 2 R-on-pacing 3 Fusion beats 3 Nonspecific ST/T changes 1 Comment:If the spikes go marching through another rhythm there is no way of knowing if they are atrial or vent
AV Dissociation with Interference
Report:Sinus rhythm 1 Borderline right atrial abnormality (RAA) 1 SVEB 1 Ventricular demand pacemaker rhythm 72/min 2 AV dissociation with interference 2 Fusion beat 2 Nonspecific ST/T changes 1 Comment:The sinus P waves march through the first fo
Atrial Pacemaker: Failure to Sense
Report:Sinus rhythm 80/min 1 Atrial pacemaker 2 Failure to sense 2 Blocked atrial P waves of pacemaker origin 4 Left bundle branch block 1 Comment:There is a profusion of pacemaker spikes and LBBB complexes, giving an initial impression of variable a
Sinus Bradycardia: Escape-Capture Bigeminy
Report:Sinus bradycardia 38/min 3 Ventricular pacemaker escape beats 2 Escape-capture bigeminy 4 Nonspecific ST/T changes 1 Comment:A precondition for escape-capture bigeminy is a very long effective supraventricular cycle, created in this instance by
Battery Depletion
Report: Atrial fibrillation 1 Third degree AV block 4 Pacemaker rhythm 44/min 1 Probable battery depletion 4 Comment: Most units are programmed to slow the basic rate as the battery becomes depleted; numbers vary. It is not certain, however, that batt
Pacemaker Completing the RBBB
Report:Sinus rhythm 70/min 1 Atrial pacemaker rhythm 55/min 2 Failure to sense 3 Capture beats 2 Right axis deviation +95o 1 Right bundle branch block 1 Comment:The atrial pacemaker discharges with complete regularity at 55/min, obviously heedless o