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WPW Syndrome ECG Manifestations

Volume 1, Jul 2012

Kartikeya Bhargava, MD, DNB, Gurgaon, Haryana, India

A 21-year-old male presented with history of recurrent episodes of palpitations that had sudden onset, lasted few minutes to hours and used to subside suddenly and spontaneously. The ECG during the episode has never been recorded. The patient is absolutely asymptomatic in between the episodes and his baseline 2D echocardiography is normal. The ECG recorded at baseline is shown in Figure 1. What is the ECG diagnosis? 
The ECG shows regular sinus rhythm at 92/min with a wide QRS following each P-wave after a very short PR interval.The initial part of the QRS shows slurring known as the delta wave. These features are diagnostic of ventricular preexcitation due to an atrioventricular
accessory pathway (AP) and result from earlier activation of some part of the ventricles (preexcitation) than that would have occurred by the AV node–His-Purkinje system.

Volume 1, Number 3, Pages: 154-7

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