Section Editor: Rick A. McPheeters, DO Submission history: Submitted March 10, 2016; Revision received April 8, 2016; Accepted April 13, 2016 Electronically published June 16, 2016 Full text available through open access at http://escholarship.org/uc/uciem_westjem DOI: 10.5811/westjem.2016.4.30323 [West J Emerg Med. 2016;17(4):469-470.] University of California, Irvine, Department of Emergency ...

We examined the electrophysiologic effects of verapamil in eight patients with the WolffParkinson-White syndrome. Verapamil shortened the antegrade effective refractory period of the accessory pathway in three patients and abbreviated the shortest cycle length with 1:1 conduction over the accessory pathway in two patients. More significantly, verapamil decreased the shortest RR interval between...

Non-annular accessory pathways are rare to encounter in clinical practice. We present a case of right atrial appendage posterior ventricular outflow tract pathway patient with Wolf-Parkinson-White Syndrome. N/A A 26-year-old male structurally normal heart and syndrome was referred our lab for electrophysiology study catheter ablation. He had two prior studies one unsuccessful ablation attempt w...