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Search and discover over 2,500 ECG reports written by cardiologist and intensivist Dr George Nikolić OAM.
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
Overdrive of Atrial Tachycardia With Block
Report: Top: Atrial tachycardia 200/min 1 2:1 AV block 1 Pacemaker artefact 122/min 2 No capture 1 Second: Atrial pacing 250/min 3 Capture 0 Variable AV block 0.5 Third: Atrial pacing 80/min 0.5 1:1 conduction 0 Bottom: Sinus rhythm 68/min 1
Physiological Pacing
Report: Pacemaker rhythm 70/min 7 AV sequential pacemaker 2 100% capture 1 Comment: The patient had a DDD (“universal”) pacemaker, now the commonest type implanted1. In this example, both the atria and the ventricles are paced, mimicking the natural s
Alternating Paced and Fusion Beats
Report: Slow atrial or junctional rhythm 38/min 2 Ventricular pacemaker rhythm 79/min 2 Superior electrode placement 2 Fusion in alternate beats 2 Presumptive RBBB 1 ST/T changes of uncertain significance 1 Comment: The narrower (0.12 sec) complexes are p
The Commonest Cause of a Pause
Report:Sinus tachycardia 100/min 1 Atrial-sensing ventricular pacemaker rhythm 1 Blocked SVEB 6 Left atrial abnormality (LAA) 1 Right bundle branch block 1 Comment:There is a subtle but definite change in the T wave of the last paced beat before the
Status Asthmaticus
Report: Sinus tachycardia Right axis deviation +120o Clockwise rotation Comment: Right axis deviation may still be a normal variant in a young subject; in this case we can be sure it was a result of cor pulmonale as the axis normalised with clinical im
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
Sick Sinus Syndrome: Repetitive Atrial Tachycardia
Report:Repetitive atrial tachycardia 180-230/min 5 Atrial and pacemaker escape beats 3 DDD pacemaker pacing at 66/min 2 Comment:This is an atrial tachycardia, with P waves not unlike sinus P waves in the frontal leads; the term SVT, while technically c
Single Failure to Capture
Report:Sinus rhythm 63/min 2 Complete AV dissociation 4 Pacemaker rhythm 80/min 2 Single failure to pace 4 Comment:AV block cannot be accurately diagnosed here: the atrial (sinus) rate is too slow and the ventricular (pacemaker) rate too fast. Just be
Wobbly Atrial Lead
Report: Sinus rhythm 86/min throughout 2 First degree AV block (PR 0.28”) 2 Left atrial abnormality (LAA) 1 Pacemaker rhythm (P-sensing) 86/min 2 AV interval 0.16” 2 Probable old inferior and septal infarction 1 Comment:The atrial lead became wobbl