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Search and discover over 2,500 ECG reports written by cardiologist and intensivist Dr George Nikolić OAM.
Reciprocal Rhythm
Report: Pacemaker rhythm 1 Variable rate 1 First degree AV (0.2 - 0.4”) and VA (0.47 - 0.51”) block 1 Bigeminy due to reentry (echo) beats of pacemaker origin 6 Ventricular conduction delay (unspecified) 1 Comment: All the complexes shown - atrial
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
Paced Rhythm: Primary T Wave Changes
Report:Sequential pacemaker rhythm 1 SVEBs, with atrial-sensed pacing 2 Ventricular fusion 3 Primary T wave inversion in multiple leads 4 Comment:The pattern is that of global T wave inversion, usually not an ischæmic event. The T wave changes in this
VVIR & DDDR: Mode Switch
Atrial UndersensingReport:Sinus tachycardia 100/min 1 Atrial-sensing ventricular pacemaker rhythm 100/min (first two cycles) 2 Ventricular pacemaker rhythm, VVIR mode, 98-84/min 5 VEB 1 LAA 1 Comment:The pacemaker picked up and dropped sinus rate rep
Negative Concordant Precordial Pattern
Report: Sinus rhythm 1 Supraventricular ectopic beat 1 AV dissociation 5 Ventricular pacemaker rhythm 75/min with 100% capture 3 Comment: At first it appears that the large (therefore unipolar) pacemaker spikes track the P waves, but the latter gradu
Failing Pacemaker
Report: Sinus rhythm 1 Probable third degree AV block 1 AV dissociation 1 Ventricular escape beats 1 Primary T wave changes 1 Probable old anterior infarction 1 Pacemaker rhythm 72/min 1 Intermittent failure to pace 1 Probable lead displacement 2
Isorhythmic Dissociation of a VVI Pacemaker
Report:Sinus rhythm 70/min 1 Ventricular pacemaker rhythm 70/min 4 AV interval 0.36 sec 5 Comment:The sinus P waves are not very well shown in the frontal leads, but there’s no doubting them in the chest leads V1-3. The AV interval is long, but constan
Masquerading Bundle Branch Block
Report:Atrial fibrillation with ventricular response 80-120/min 1 Fixed-rate ventricular pacemaker rhythm 50/min 2 Fusion beat (third paced complex) 1 R-on-T pacing 1 Right bundle branch block 1 Left anterior hemiblock 1 Standard masquerading bundl
Onset of Atrial Fibrillation: Mode Switch
Report:Sinus rhythm 76/min 1 Atrial-sensing ventricular pacemaker 3 SVEB, onset of atrial fibrillation 4 Atrial fibrillation with ventricular response 118-124/min 1 Pacemaker inhibition 0 Incomplete left bundle branch block 1 Comment:At first, the p
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