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Summary

Description

The rhythm is sinus with a first degree heart block (pr > 120ms), there is a wide QRS (>120ms.) with a RBBB morphology and a left axis deviation consistent with a left fasicular block. The combination has been called a "trifasicular block" suggesting that the prolonged pr interval is due to slowing in the left posterior fascicle, but in fact this can be due to slowed conduction in the A/V node.

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

File history

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Date/TimeThumbnailDimensionsUserComment
current05:26, 21 February 2012Thumbnail for version as of 05:26, 21 February 20123,004 × 1,599 (4.47 MB)DarrelC (talk | contribs)

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