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Challenges in Clinical Electrocardiography | ONLINE FIRST

Syncope—Discussion ONLINE FIRST

JAMA Intern Med. Published online June 24, 2013. doi:10.1001/jamainternmed.2013.7750b
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Correspondence: David Katz, MD, Electrophysiology Fellow, University of Colorado, 12631 E 17th Ave, Box 130, Aurora, CO 80045 (David.Katz@UCDenver.edu).

Published Online: June 24, 2013. doi:10.1001/jamainternmed.2013.7750

Conflict of Interest Disclosures: None reported.

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Online QT-prolonging drug list.www.azcert.org. Accessed February 1, 2013
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Figure 2. Bradycardia with QT prolongation to longer than 600 milliseconds and premature ventricular complexes (PVCs) during micturition. In the setting of such bradycardia (A), a PVC may initiate torsades de points, exemplified by the twisting appearance of the QRS complexes (B).

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