Unknown Intracardiac Electrogram
Multiple Choice Questions
S2 confirms conduction over:
The answer and a short interpretation video guide may be found in the online version of this article at the publisher's website: http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1540-8167/homepage/unknown-tracing-28-8-prystowsky.htm
This article is part of a new monthly series in the Journal called “Unknown Intracardiac Tracings.” The format is to show what I hope will be an interesting and challenging intracardiac tracing that the reader will evaluate and then answer the question accompanying the figure. Instead of simply showing the answer on the next page, the reader will be able to link to a video presentation in which I will discuss the tracing and the correct answer. For 30 years I have employed this method to teach interpretation of intracardiac electrograms, and found it both a fun and educational experience. I hope you will enjoy the tracings. The editors and publishers of JCE appreciate Medtronic's generous and enthusiastic support of this new section.