Challenges in Clinical Electrocardiography | ONLINE FIRST

Syncope—Discussion ONLINE FIRST

JAMA Intern Med. Published online June 24, 2013. doi:10.1001/jamainternmed.2013.7750b
Text Size: A A A
Published online


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.

Krantz MJ, Martin J, Stimmel B, Mehta D, Haigney MC.QTc interval screening in methadone treatment. Ann Intern Med. 2009;150(6):387-395
PubMed   |  Link to Article[[XSLOpenURL/10.7326/0003-4819-150-6-200903170-00103]]
Strickberger SA, Benson DW, Biaggioni I,  et al; American Heart Association Councils on Clinical Cardiology, Cardiovascular Nursing, Cardiovascular Disease in the Young, and Stroke; Quality of Care and Outcomes Research Interdisciplinary Working Group; American College of Cardiology Foundation; Heart Rhythm Society. AHA/ACCF scientific statement on the evaluation of syncope. J Am Coll Cardiol. 2006;47(2):473-484
PubMed   |  Link to Article[[XSLOpenURL/10.1016/j.jacc.2005.12.019]]
Kapoor WN.Syncope. N Engl J Med. 2000;343(25):1856-1862
PubMed   |  Link to Article[[XSLOpenURL/10.1056/NEJM200012213432507]]
Online QT-prolonging drug list.www.azcert.org. Accessed February 1, 2013
Figures in this Article



Sign In to Access Full Content

Don't have Access?

Register and get free email Table of Contents alerts, saved searches, PowerPoint downloads, CME quizzes, and more

Subscribe for full-text access to content from 1998 forward and a host of useful features

Activate your current subscription (AMA members and current subscribers)

Purchase Online Access to this article for 24 hours

First Page Preview

View Large
First page PDF preview


Place holder to copy figure label and caption
Graphic Jump Location

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).




Meets CME requirements for:
Browse CME for all U.S. States
Accreditation Information
The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
Note: You must get at least of the answers correct to pass this quiz.
You have not filled in all the answers to complete this quiz
The following questions were not answered:
Sorry, you have unsuccessfully completed this CME quiz with a score of
The following questions were not answered correctly:
Commitment to Change (optional):
Indicate what change(s) you will implement in your practice, if any, based on this CME course.
Your quiz results:
The filled radio buttons indicate your responses. The preferred responses are highlighted
For CME Course: A Proposed Model for Initial Assessment and Management of Acute Heart Failure Syndromes
Indicate what changes(s) you will implement in your practice, if any, based on this CME course.
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).
Submit a Comment


Some tools below are only available to our subscribers or users with an online account.

Sign In to Access Full Content

Related Content

Customize your page view by dragging & repositioning the boxes below.

Articles Related By Topic
Related Topics
PubMed Articles