Differentials

SVT with aberrant conduction

SIGNS / SYMPTOMS
INVESTIGATIONS
SIGNS / SYMPTOMS

None

INVESTIGATIONS

ECG, electrophysiologic study: failure to meet criteria for NSVT; absence of fusion capture beats; absence of atrioventricular dissociation.

Electrical artifact

SIGNS / SYMPTOMS
INVESTIGATIONS
SIGNS / SYMPTOMS

None

INVESTIGATIONS

ECG: evidence of underlying sinus rhythm discernable through electrical noise (motion artifact).

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