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Search and discover over 2,500 ECG reports written by cardiologist and intensivist Dr George Nikolić OAM.
Iatrogenous 1o AV Block
Report: Sinus rhythm 62/min 1 DDD (universal) pacemaker Atrial-sensing, ventricular-pacing mode 3 Atrial under-sensing in V1-3, with atrial + ventricular paced complex 3 Long A-V interval 0.30” 3 Comment: In programming the A-V sequential pacemakers
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
Carotid Sinus Massage & Atrial Pacemaker
Report:Sinus rhythm 53/min 1 Atrial pacemaker rhythm 41 - 42/min 2 Second degree AV block 3 Single non-conducted paced beat 4 Comment:Carotid sinus massage may induce AV block regardless of the nature of atrial activation. The patient's response is no
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
Pacemaker rhythm or LBBB?
Report:Sinus rhythm 87/min 2 Atrial-sensing ventricular pacemaker 8 Comment:The point here is how small the pacing spikes are; they are best seen in L2 and V4, starting small shallow R waves in the latter. I was ready to cross the computer report and wr
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
Left Ventricular Pacemaker
Report:Atrial flutter 320/min 2 Probable third degree AV block 3 Ventricular pacemaker rhythm 80/min 2 Left ventricular lead 3 Comment:By coincidence, the F wave rate is almost exactly four times the paced QRS rate and the impression is strong of flut