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Search and discover over 2,500 ECG reports written by cardiologist and intensivist Dr George Nikolić OAM.
Beginning of an Endless Loop
Report: Sinus rhythm 79/min 1 VEB 1 Ventricular escape beat, preceded by attempt at atrial pacemaker escape 1 VEBs, dimorphic couplet 1 Retrograde conduction 2 Retrograde P sensing and generating pacemaker tachycardia 103/min 4 Comment: The retrogra
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
Junctional Extrasystoles with RBBB Conduction
Report:Sinus rhythm 81/min 1 Atrial-sensing ventricular pacemaker 3 AV interval 0.10 sec 1 Junctional premature beats with RBBB conduction 4 ST/T changes consistent with ischæmia 1 Comment:Like in the previous case, there are large ventricle-pacing s
Alternating Atrial Transport
Report: AV sequential pacemaker rhythm 78/min 4 Atrial capture in alternate cycles 3 Sinus ? atrial bigeminy in alternate cycles 3 Comment: Nobody would have looked hard at the atrial activity were the alternans not observed on the pressure display.
Flutter Bigeminy
Report:Atrial flutter 252/min 2 Alternating 2:1 & 4:1 block 2 Demand pacemaker 1 Pseudofusion spikes in alternate complexes 2 Small voltage, limb leads 1 Possible old anteroseptal infarction 1 Nonspecific ST/T changes 1 Comment:The pacemaker rate i
Upper Rate Limit
Report:Sinus tachycardia 120/min 0.5 VEBs, one couplet 1 SVEB 1 AV block, probably complete 1 Atrial-sensing ventricular-pacing pacemaker 1 Pauses due to upper rate limit 120/min 4 Fusion beats 1 Left atrial abnormality (LAA) 0.5 Comment: The pa
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
Agonal Rhythm
Report:Pacemaker rhythm 60/min 2 Absolute small voltage 3 Probable acute anterior infarction 5 Comment:There is probably an atrial standstill. The patient sustained clinical acute infarction and cardiogenic shock, dying within minutes of this trace b
VVI Pacemaker Mime of Atrial Sensing
Report:Pacemaker rhythm 70/min 4 Atrial tachycardia/flutter 210/min 6 Comment: The patient had a VVI pacemaker set at 70/min, precisely because she had almost constant atrial tachyarrhythmias. In this tracing, however, the AV interval appears fixed at
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