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Fig. 1 | BMC Cardiovascular Disorders

Fig. 1

From: Preexcitation syndrome: experimental study on the electrocardiogram of antegradely conducting accessory pathway

Fig. 1

Four types of QRS complex recorded during ventricular pacing by synchronous pacing of PS2 and P wave simulating preexcitation of left anterior accessory pathway. Sinus PR interval represents the atrioventricular conduction time via normal pathway; PS2 represents atrioventricular conduction time via accessory pathway; R2 represents the different degrees of preexcitation; “↑” shows the changes of initial and terminal QRS vectors. CVP: complete ventricular pacing; CVPE: complete ventricular preexcitation; ICVPE: incomplete ventricular preexcitation; ICLPE: incomplete latent preexcitation; CLPE: complete latent preexcitation

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BMC Cardiovascular Disorders

ISSN: 1471-2261

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