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Search and discover over 2,500 ECG reports written by cardiologist and intensivist Dr George Nikolić OAM.
Pacemaker Rhythm and LBBB
Report: Electronic demand pacemaker rhythm 70/min 2 Atrial fibrillation 2 Left bundle branch block (last 3 beats) 6 Comment: If it were not for the rhythm strip, few would notice the transition from pacemaker to supraventricular rhythm at the end of th
Tricuspid Atresia
Report: Atrial pacemaker rhythm 111/min (dual chamber pacemaker) 4 Left axis deviation (LAD) –60o 3 LVH with ST/T changes 3 Comment: A cyanosed child with LAD most likely has tricuspid atresia; in one large series LAD was present in 87% of those wit
Complete AV Dissociation
Report: Pacemaker rhythm 80/min 3 Sinus rhythm, non-conducted, 85/min 3 Complete AV dissociation 3 Left atrial abnormality (LAA) 1 Comment: The paced complexes have the typical LBBB/LAD appearance, indicating pacing from the apex of the right ventricl
Trigeminy
Report: Demand pacemaker rhythm 65/min 2 Hysteresis rate 60/min 3 Intermittent retrograde conduction 2 Sinus capture beats 2 Trigeminy 1 Probable sick sinus syndrome 0 Comment: To comment on the appropriateness of the pacing rate one has to know th
Runaway Pacemaker
Report: Pacemaker tachycardia 180/min 5 Runaway pacemaker 5 Comment: Most modern pacemakers would have a ventricular rate-limiting mechanism to prevent this degree of tachycardia. The trace itself does not offer any clues as to the cause: all one can se
Pacemaker Confusion in Pseudofusion: Transposition of Great Vessels
Report: Sinus tachycardia 110/min 1 Left atrial abnormality (LAA) 1 Indeterminate abnormal axis ±194o 2 Right ventricular hypertrophy 3 Pacemaker sensing spikes (pseudofusion beats) 3 Comment: The spikes occur after the onset of the QRS complex, pr
Escape-Capture Bigeminy in AF
Report: Atrial fibrillation 1 High-grade or complete AV block 1 Junctional rhythm 2 Pacemaker rhythm 1 Escape-capture bigeminy 1 Left anterior hemiblock (LAHB) 1 Right bundle branch block 1 Anteroseptal infarction, age uncertain 1 ST/T changes con
Failure to Pace
Report:Sinus rhythm approximately 75/min 1 AV dissociation 3 Pacemaker rhythm 88/min 4 Intermittent failure to capture (pace) 2 Comment:Large pacemaker spikes march regularly throughout, but the 10th spike is not followed by a QRS. The morphology of
PseudoWenckebach in Ventricular Pacemaker
Report:Sinus tachycardia 122/min. 1 Möbitz 1 AV block, 5:4 and 4:3 conduction. 2 Atrial-sensing ventricular pacemaker (probably a DDD pacemaker). 3 Pseudo-Wenckebach. 4 Comment:The ventricular complexes are all paced and all identical, indicating no a
Atrial Pacemaker Rhythm: Wenckebach Periods
Report:Dowling Dennis Raymond 55 15/4/00 106504Atrial pacemaker rhythm 89/min 2 Second degree AV block, Möbitz 1 5 Left ventricular hypertrophy with ST/T changes 2 Probable old inferior infarction 3 Comment:The spike-to-R interval (equivalent of PR o