File:E40.jpg

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Summary

Description

The recording is interesting as the patient goes from sinus rhythm to at first a wide complex tachycardia at about 130/min. The wide QRS though disappears after nine complexes and is replaced by narrow complexes at a slightly slower rate. No p wave activity is seen. This a supraventricular tachycardia with a from of abberancy. In this case we are probably seeing a rate dependent left bundle branch block or the effect of a left bundle branch block which persists for the nine complexes because of continued block in the left bundle from the depolarizations from the intact right bundle.

Category

Case reports by Michael Rosengarten

Source

EKG World Encyclopedia http://cme.med.mcgill.ca/php/index.php , courtesy of Michael Rosengarten BEng, MD.McGill

Date

2012

Author

Michael Rosengarten BEng, MD.McGill

Permission

Creative Commons Attribution Noncommercial Share-Alike License

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current06:03, 21 February 2012Thumbnail for version as of 06:03, 21 February 20123,004 × 630 (581 KB)DarrelC (talk | contribs)
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