File:E257.jpg: Difference between revisions

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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

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Camera manufacturer	HP
Camera model	HP Scanjet G3110
Date and time of data generation	23:31, 2 May 2009
Width	3,000 px
Height	1,599 px
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Pixel composition	RGB
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Number of components	3
Horizontal resolution	72 dpi
Vertical resolution	72 dpi
Software used	Adobe Photoshop CS5 Windows
File change date and time	05:17, 21 February 2012
Y and C positioning	Co-sited
Pair of black and white reference values	0 255 128 255 128 255
Exif version	2.2
Meaning of each component	Y Cb Cr does not exist
Supported Flashpix version	1
Color space	sRGB
Saturation	Low saturation
Sharpness	Soft
Date and time of digitizing	23:31, 2 May 2009
Date metadata was last modified	13:17, 21 February 2012
Unique ID of original document	4856E29C11D40F15A9CCD45DD9942DDA
Copyright status	Copyright status not set

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+== Summary ==
+{{Information
+|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_from_Michael_Rosengarten|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 = {{by-nc-sa-3.0}}
+|other_versions = None
+}}