Title: New concepts relating to the preexcitation syndrome
Abstract: Since its original description in 1930, considerable controversy has centered on the basic explanation for the anomalous atrioventricular (AV) conduction seen in the preexcitation or Wolff-Parkinson-White (WPW) syndrome.<sup>1</sup>An abnormally short PR interval associated with a prolonged QRS containing a delta wave (an initial slurring or thickening of the first wave of the QRS complex, be this an R or an S) in the presence of sinus rhythm is the classic criteria for its electrocardiographic diagnosis.<sup>2</sup>The delta wave represents the early excitation of the ventricles. However, in addition to this form of anomalous AV conduction, several variants have come to be recognized.<sup>3-5</sup>These include a short PR interval (less than 0.12 seconds) with a normal QRS, ie, a QRS with normal duration and no delta wave and a normal or even prolonged PR interval coupled to a prolonged QRS containing a delta wave. Recent and very
Publication Year: 1967
Publication Date: 1967-09-25
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 10
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