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Search and discover over 2,500 ECG reports written by cardiologist and intensivist Dr George Nikolić OAM.
Not a Sinus Bradycardia
Report: Sinus rhythm Sinus arrest Junctional escape beats Retrograde conduction Non-phasic aberrant conduction Escape-capture bigeminy Comment: The phenomenon of escape-capture bigeminy depends on the coincidental arithmetic relationship between the
Sinus Bradycardia: Escape-Capture Bigeminy
Report:Sinus bradycardia 34 - 43/min Junctional escape beats Escape-capture bigeminy Phasic aberrant conduction, RBBB type Comment: The mechanism of the bigeminy is sinus bradycardia. Here the effective sinus cycle is the same as the actual one; in ot
Classical Wenckebach
Report:Sinus rhythm 82 â 86/min Second degree AV block, Möbitz 1 Left atrial abnormality (LAA) Recent inferior infarction Comment:Most clinically observed Wenckebach periods are in some way atypical; the long ones are so as a rule. The commonest at
Fascicular VT with 1:1 Retrograde Conduction
Report:Ventricular tachycardia 106/min 1:1 retrograde conduction Comment:This is a very slow VT â well within what some authorities would call AIVR. It is fascicular, with the QRS complex only 0.12â long. Its morphology is that of basic RBBB/LAHB, o
Rabbit Ears For and Against
Report:Upper strip: Sinus tachycardia 104/min VEBs, late-diastolic (R-on-P âphenomenonâ) Lower strip: Sinus rhythm SVEBs, probably of atrial origin RBBB aberrancy Couplet, second SVEB non-conducted Comment:Looking at the rabbit from behind, if
VT or SVT in a Patient with Known LBBB?
Report:Ventricular tachycardia 174/min. Comment:The QR morphology in lead V1, however, is that of VT, unless there was a previous anteroseptal infarction. The marked LAD -90o is neither here or there, diagnostically. Interestingly, a recent study using t
Atrial Flutter with 1:1 Conduction
Report:Atrial tachycardia (flutter) 202/min 2:1 block (top strip) 1:1 conduction (bottom strips) Rate-dependent left bundle branch block Comment: Note the exact doubling of the ventricular rate in the lower strips. From the rate alone, the rhythm w
Runs of Aberrant SVT
Report: Sinus rhythm Incomplete right bundle branch block SVEBs, some in couplets, of atrial origin SVEBs, single, of junctional origin, dissociated Short runs of atrial tachycardia Aberrant conduction, RBBB type, variable Comment: The QR morphology
Ventricular Tachycardia Rightly (Mis)diagnosed
Report:Ventricular tachycardia 170/min Comment:There is nothing against the diagnosis of VT in this trace, and a lot in its favour: monophasic R waves in V1 with left rabbit ear taller than the right and QRS duration over 0.14â (in basic RBBB morpholog
Ventricular or Another Atrial Tachycardia?
Report: Ventricular tachycardia 178-180/min Comment: The tachycardia basic LBBB morphology with right axis deviation; the nadir of the S wave in V1 came after more than 0.06â. It looked like VT: RAD with LBBB has never been reported as aberrancy8. This