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Search and discover over 2,500 ECG reports written by cardiologist and intensivist Dr George Nikolić OAM.
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
Sinus Captures with 1o AV Block
Report:Sinus rhythm approx. 86/min 1 Second degree AV block, unspecified 2 AV pacemaker rhythm 60/min 1 No atrial capture 2 Sinus captures with 1o AV block 2 Left anterior hemiblock + IVCD 1 LVH with ST/T changes 1 Comment:The space between the atr
Double Interpolation
Report: Sinus rhythm 64/min 1 Pacemaker rhythm 62/min 1 Failure to sense (interpolated) 3 R-on-T pacing 2 Concealed retrograde conduction 3 Comment: The two rhythms, so to speak, pass through each other in a prolonged handover of the ventricles! Th
Pretend-Sequential Pacemaker
Report:Pacemaker rhythm 60/min 4 Failed atrial capture 5 Possible retrograde conduction 1 Comment:The atrial spikes precede an empty AV interval – there is no evidence of atrial activity. A trace taken 5 months previously (below) was essentially the sa
Spike Decay Masking the QRS
Report:Ventricular pacemaker rhythm 65/min 1 Possible battery depletion 2 Intermittent retrograde conduction 4 Sinus rhythm 75/min 1 Probable third degree AV block 2 Comment:The faster sinus rhythm is almost certainly subject to 3o AV block, but the
Pacemaker-Ventricular Wenckebach
Report: Sinus rhythm 1 Third degree AV block 3 Pacemaker rhythm 2 Möbitz 1 (Wenckebach) pacemaker-ventricular block 4 Comment: There is an allorhythmic succession of 2:1 and 3:2 sequences. The latter show well-marked prolongation of spike-to-QRS inter
Pacemaker-Ventricular 2:1 Block
Report:Sinus rhythm 94/min 1 Atrial-sensing ventricular pacemaker rhythm 4 AV block (unspecified) 1 2:1 pacemaker-ventricular block 4 Comment:T wave’s more trouble than it’s worth. One cannot be sure whether we are dealing with sinus rhythm 94/min or
Pseudo-Wenckebach in Pacemaker Rhythm
Report:Sinus tachycardia 100/min 1 Atrial-sensing ventricular pacemaker 2 Pseudo-Wenckebach periods 7 Comment:There is no acceleration of the distal chamber because the increases in AV interval are not decremental as in the “natural” Wenckebach; otherw