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Search and discover over 2,500 ECG reports written by cardiologist and intensivist Dr George Nikolić OAM.
Atrial-Sensing Pacemaker Fails to Pace
Report:V1 and V3 reversed 1 Sinus rhythm 94-100/min 0.5 Ventriculophasic sinus arrhythmia 2 Atrial-sensing ventricular pacemaker 2 Complete failure to pace 1 2:1 and 3:2 AV block, Möbitz 2 2 Right bundle branch block 1 Borderline ST segment depres
VEBs in Bigeminy
Report: Sinus rhythm 67 – 71/min 1 Ventricular pacemaker 1 VVI mode 4 Ventricular fusion beats 2 VEBs 1 Bigeminal 0.5 Uniform 0.5 Comment: The interesting question is whether the atrial deflections following VEBs are blocked sinus P waves or retrog
Ectopic Pacemaker
Report:AV pacemaker rhythm 59/min; AV interval 020” (as programmed) 0.5 Displaced ventricular lead 3 Intermittent failure to pace & native QRS conduction at spike-R interval 0.36” 4 Failure to sense (the delayed atrial-paced native QRS) 2 ST/T changes
Pacemaker or LBBB?
Report:Sinus rhythm 65/min 2 Atrial-sensing ventricular pacemaker 8 Comment:This seems unimpeachable, except for lead V1 having the morphology of LBBB (steep descent, slow ascent) instead of expected right ventricular paced or ectopic beat (slow descent
Sick Sinus Syndrome: Repetitive Atrial Tachycardia
Report:Repetitive atrial tachycardia 180-230/min 5 Atrial and pacemaker escape beats 3 DDD pacemaker pacing at 66/min 2 Comment:This is an atrial tachycardia, with P waves not unlike sinus P waves in the frontal leads; the term SVT, while technically c
Onset of Pacing With Retrograde Conduction
Report:Sinus rhythm 59-62/min 1 Borderline left atrial abnormality (LAA) 1 Demand pacemaker rhythm 59/min 3 Retrograde conduction 5 Comment:The slight sinus arrhythmia allows the pacemaker takeover at 59/min, following a pseudofusion beat in the midd
Atrial Pacemaker Captures During 2:1 AV Block
Report: Sinus rhythm 0.5 AV sequential (known DDD) pacemaker 0.5 Atrial sensing & pacing 1.0”escape interval 1 AV interval 0.30” atrial-paced beats and one conducted sinus beat 1 Failed ventricular pacing 1 Second degree AV block 2:1 alternate paced
Double Coupling
Report:Sinus rhythm 100/min 1 VEBs 1 Ventricular demand pacemaker 3 Apparent intermittent failure to sense 4 Right bundle branch block 1 Comment:The odd thing about the pacemaker’s lack of sensing is that all the paced beats occur after – and seem c
Failed Biventricular Pacemaker
Report:Sinus rhythm 63/min 1 Left atrial abnormality (LAA) 1 P wave 0.16” First degree AV block 3 PR 0.28” Right axis deviation +250o Left bundle branch block 3 Dual pacemaker, failed, 70/min 2 Comment:The combination of LBBB and RAD is virtually
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