Search the collection
Search and discover over 2,500 ECG reports written by cardiologist and intensivist Dr George Nikolić OAM.
Alternating RBBB & LBBB?
Report: Sinus rhythm Second degree 2:1 AV block Alternating RBBB & LBBB Discordant PR intervals Left axis deviation -35o (in RBBB) Non-specific ST/T changes (during RBBB) Or: Conducted RBBB with 2:1 and advanced 2o AVB Ventricular escape beats Es
An Optical Illusion
Report: Sinus tachycardia 116/min First degree AV block PR 0.40â Normal axis Left bundle branch block QRS 0.125â Comment: This is one of the traces I originally misreported (as NPJT). One way for any ECG to find its way into this Library is to h
1o AV Block Expressing BBBB
Report: Sinus rhythm 77 â 82/min Left atrial abnormality (LAA) First degree AV block PR 0.22â Intermittent right bundle branch block + left anterior hemiblock PR 0.16â Nonspecific T wave changes Comment: At first, one would postulate a disso
LBBB with RAD: Acute Inferior Infarction
Report:Sinus rhythm 96-100/min Third degree AV block Junctional escape rhythm 45/min Left bundle branch block Right axis deviation +95o Acute inferior infarction Comment:Three contributors to heart failure are present in this trace: Acute infarction
AV Block: Nodal or Ventricular?
Report:Sinus rhythm Second degree AV block Intermittent right bundle branch block & left posterior hemiblock Prolonged QT interval Comment:The PR interval lengthens between the first and the second beat, but fails to grow observably longer between the
Bradycardia-Dependent RBBB
Report: Sinus/atrial rhythm Shifting pacemaker First degree AV block Second degree AV block, Möbitz I Blocked SVEBs, ?reentry of atrial origin Bradycardia-dependent right bundle branch block Comment: This is the same patient as in Case 1. All the
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 in Bad Company
Report:Sinus rhythm 74/min 2:1 second degree AV block Right axis deviation (RAD) +120o Left posterior hemiblock Right bundle branch block Ventriculophasic sinus arrhythmia Comment:The patient had no history of heart disease and had been on cimetidin