File:E257.jpg

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Original file(3,004 × 1,108 pixels, file size: 507 KB, MIME type: image/jpeg)

Summary

Description

This an interesting recording of nodal rhythm. The recorting shows no atrial sensing which could represent sinus node arrest and no retrograde condution or lack of sensing due to the artrial refractory period. This is the post ventricular atrial refractory period (PVARP). This refractory period which is longer than that of the ventricle is important to avoid sensing of retrograde P waves which in turn can initiate a pacemaker mediated tachycardia.

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
current06:24, 21 February 2012Thumbnail for version as of 06:24, 21 February 20123,004 × 1,108 (507 KB)DarrelC (talk | contribs)
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