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Search and discover over 2,500 ECG reports written by cardiologist and intensivist Dr George Nikolić OAM.
VEBs & U Waves: Hypokalæmia
ReportSinus rhythm. Sinus arrhythmia. VEBs, bigeminy. Prominent U waves consistent with hypokalæmia. Comment:The ECG monitor alarmed at the heart rate 34/min. This need not be merely spurious bradycardia, a mistake in the first place, due to negative
Sotalol Overdose
Report:Sinus rhythm 62/min 2:1 AV block Ventriculophasic sinus arrhythmia Prolonged QT interval 0.58â QTc 0.58â Comment:The blocked alternate P waves are not very obvious, superimposed on prolonged, themselves rather wavy, T waves. Also, alternat
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
Ventricular Fusion Beats
Report: Sinus rhythm First degree AV block PR 0.28â VEBs, possible parasystole Ventricular fusion beats Left bundle branch block QRS 0.20â Comment: The criteria for diagnosing ventricular fusion beats were formulated by Marriott et al18 in 1962
2:1 & Advanced 2o AV Block
Report: Sinus tachycardia 125/min Left atrial abnormality (LAA) Second degree AV block, 2:1 & advanced First degree AV block (PR 0.28â) in conducted beats VEB (ventricular escape beat) Left anterior hemiblock Right bundle branch block, atypical L
Sinus Rhythm Faster Than Itself
Report: Nonparoxysmal junctional tachycardia (NPJT) 98-100/min Sinus rhythm 94-96/min Left atrial abnormality Sinus capture beats AV dissociation with interference Left ventricular hypertrophy with ST/T changes (incomplete LBBB) Comment: Paradoxical
Bigeminy and Trigeminy: Atrial Flutter
Report:Atrial flutter 250/min Alternating 4:1 & 2:1 (2:1 + 3:2) conduction, with bigeminy (top) 2:1 + 4:3 conduction, with trigeminy (bottom) Comment:Typical flutter has a basic 2:1 block and a more distal, Wenckebach block; this combination accounts f
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
Dig the Break!
Report: Sinus rhythm 96/min Second degree AV block, 2:1[!xe "AV block:concealed:dig the break" \b!] SVEB[!xe "SVEBs:unmasking 2o AV block" \b!] Left bundle branch block Comment: The blocked alternate P waves are almost completely hidden by the descend