Patients with Wolff-Parkinson-White syndrome have an “accessory pathway ... and results in a shortened PR interval on the ECG. The combination of WPW and atrial fibrillation can potentially ...

The accessory pathway that is exists is refractory on an alternating basis creating this appearance. This is a relatively rare ECG finding.

Since this manuscript was submitted, a comprehensive study of precordial, thoracic and esophageal leads in the Wolff-Parkinson-White syndrome has been reported by Rosenbaum et al. 6 They suggest ...

In another case, a conventional ECG device did not detect Wolff-Parkinson-White (WPW) syndrome, which can be lethal under a general anesthetic. The AiTiA ECG Center detected an atypical beat and ...