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Search and discover over 2,500 ECG reports written by cardiologist and intensivist Dr George Nikolić OAM.
Atrial Pacemaker Captures During 2:1 AV Block
Report: Sinus rhythm 0.5 AV sequential (known DDD) pacemaker 0.5 Atrial sensing & pacing 1.0”escape interval 1 AV interval 0.30” atrial-paced beats and one conducted sinus beat 1 Failed ventricular pacing 1 Second degree AV block 2:1 alternate paced
No Pacing and 2:1 Failure to Sense
Report:Sinus rhythm 55/min 1 Demand pacemaker: failure to pace 2 2:1 failure to sense 5 LVH voltage (SV2 25mm) 0.5 Left atrial abnormality (LAA) 0.5 Old inferior infarct 0.5 Possible old anterior infarct (loss of R height from V2 to V3) 0.5 Commen
Sensing but not Pacing
Report:Sinus rhythm 100/min 2 2:1 AV block 3 Left atrial abnormality (LAA) 1 Failure to pace in atrial-sensing pacemaker 3 Prolonged QT interval 0.56” 1 Comment:The unit is almost certainly a DDD one, with preserved atrial sensing but no ventricular
Conducted LPHB and Escaping LAHB
Report:Sinus rhythm 82/min Left atrial abnormality (LAA) 2:1 AV block Right bundle branch block Left posterior hemiblock Junctional escape (first two) beats RBBB + LAHB morphology Nonspecific ST/T changes Comment:Most commonly, the escape rhythm h
Right, Left, then Right Bundle Branch Block
Report:Sinus tachycardia 140/min Second degree AV block First degree AV block in conducted beats PR 0.30â SVEBs, blocked (causing the pauses) Left bundle branch block Primary repolarisation changes c/c infarction/ischæmia Comment:This is an obvi
Invisible LAHB Causing 2:1 AV Block
Report:Sinus tachycardia 120/min 2:1 AV block Right axis deviation +140o Right bundle branch block Possible old anterolateral infarction Comment:The cause of the RAD may be RVH or old anterolateral MI but the former was certainly not present clinical
2:1 AV Block
Report:Sinus tachycardia 112/min 2:1 AV block Comment:The term "advanced" or "high-grade" AV block is used to describe 50% or less conduction. It is not a useful term except for the fact that it is used! Marriott is right in suggesting the term be used
Concealed Conduction: Atrial Flutter
Report:Sinus rhythm Left atrial abnormality (LAA) Second degree 2:1 AV block Atrial flutter 300/min Third degree AV block Idioventricular escape rhythm 41/min Inferoposterolateral MI, age uncertain, probably old Comment:The flutter maintains a stat
Alternating Retrograde Conduction in Accelerated Junctional Rhythm
Report:Accelerated junctional rhythm 92/min 2:1 retrograde block Right axis deviation Lateral infarction, acute or recent Borderline small voltage in frontal leads Electrical alternans V1 Comment:One would be tempted to say that this trace is an exa
Atropine Bradycardia
Report: Top: Sinus rhythm 83 - 85/min Second degree AV block Escape-capture bigeminy Ventricular rate 55/min Bottom: Sinus tachycardia 100/min 2:1 AV block Ventricular rate 50/min Comment: In the top strip, a basic 2:1 AV block is modified by th