Abstract
Ventricular pre-excitation occurs as a result of an extranodal accessory pathway connecting the atrium with the ventricle along the AV groove. Although the baseline ECG may be normal, the common features seen are a short PR interval during normal sinus rhythm, slurring of the initial portion of the QRS complex resulting in a delta wave, a QRS duration greater than 120 ms in adults, and secondary ST and T wave changes, all of which result from a combination of eccentric accessory pathway and midline AV nodal conduction. Ventricular pre-excitation in association with a history of palpitations is named the Wolff–Parkinson–White (WPW) syndrome.
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Glover, B.M., Brugada, P. (2016). Accessory Pathway (AP) Conduction. In: Glover, B., Brugada, P. (eds) Clinical Handbook of Cardiac Electrophysiology. Springer, Cham. https://doi.org/10.1007/978-3-319-40818-7_5
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DOI: https://doi.org/10.1007/978-3-319-40818-7_5
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