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Search and discover over 2,500 ECG reports written by cardiologist and intensivist Dr George Nikolić OAM.
VEBs: (Con)fusion Bigeminy
Report: Sinus rhythm VEBs, late-diastolic, in bigeminy Ventricular fusion beats Comment: There are, depending on the VEBsâ timing, different degrees of fusion. Note how the sinus contribution is proportional to the PR interval of the fusion beat: t
Complex Trigeminy: Quadrigeminy in Disguise
Report: Sinus rhythm 73/min VEB couplets in trigeminy Ventricular fusion beats (second in each couplet) Concealed retrograde conduction Comment: The first VEB is interpolated between the preceding sinus beat and a fusion beat; hence the fusion beats h
Ventricular Fusion Rhythm
Report: Sinus rhythm Accelerated idioventricular rhythm (AIVR) AV dissociation Ventricular fusion beats Comment: The periods of AIVR in the upper strips are introduced or terminated by fusion complexes; the 8-beat run in the bottom strip consists enti
Ventricular Tachycardia or LBBB?
Report:Ventricular tachycardia 166/min. Fusion beats. Comment:The complexes could "pass" for LBBB aberrancy, except for QR morphology in lead 1 and the frontal plane axis of +85o. The occasional narrowing of the QRS is most likely result of ventricular
Parasystole
Report: Sinus rhythm Ventricular parasystole Comment: The parasystole behaves like a fixed-rate pacemaker, except there are no spike artefacts to mark its beats between ventricular captures. Fusion beats are common in parasystole, but the essential aspe
Parasystole
Report: Sinus rhythm Ventricular parasystole Ventricular fusion beats Comment: Identical VEBs with different coupling intervals but a constant interectopic interval (or an exact multiple thereof) constitute parasystole. The protected ventricular focus
Fusion Terminating AIVR
Report: Sinus rhythm 74 â 80/min Accelerated idioventricular rhythm 69 â 74/min Ventricular fusion beat Comment: The AIVR accelerates, but to no avail: the faster sinus rhythm takes over by the middle of the recording. Between the two is a typical
Left Bundle Branch Block-Like Ventricular Tachycardia
Report:Ventricular tachycardia 196/min[! XE !] Comment:This is a rapid VT with morphology quite similar to LBBB. The QRS duration is about 0.16â, best measured in the inferior leads. However, in V1, normally the most important diagnostic lead, it looks
Fusion Beats Starting Runs of VT
Report:Sinus arrhythmia Ventricular tachycardia 132-185/min, non-sustained25 1:1 retrograde conduction Fusion beat Comment: The fusion beat starting the paroxysm of VT is diagnostic of the ventricular origin of the latter. Dressler beats are fusion
Dressler Beats in VT
Report: Ventricular tachycardia 160/min Spontaneous termination Ventricular fusion beats Sinus tachycardia 120/min Comment: The fusion beat during a run of VT is known as Dressler beat12. Note how it is easier to spot fusion beats looking at their r