File:E0007661.jpg: Difference between revisions

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Description	This is an interesting set of tracings, as it shows the effect of adenosine on AV conduction, but in addition the effect on atrial refractoriness. The first tracing is clearly atrial flutter with an atrial rate of 270/min, and a ventricular rate of 135/min. The second recording shows much faster atrial activity (Note the distance between the turquoise arrows and the yellow arrows which mark out 3 atrial cycles). The second tracing is either atrial fibrillation (a know result of adenosine) or a faster atrial flutter (type II flutter) with variable block. Both of these effects could be seen as a result of the decrease in the atrial refractory period by the stimulation of the adenosine.
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
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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	08:28, 15 February 2012
Y and C positioning	Co-sited
Pair of black and white reference values	0 255 128 255 128 255
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Color space	sRGB
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Date and time of digitizing	23:31, 2 May 2009
Date metadata was last modified	16:28, 15 February 2012
Unique ID of original document	4856E29C11D40F15A9CCD45DD9942DDA
Copyright status	Copyright status not set

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+== Summary ==
+{{Information
+|Description = This is an interesting set of tracings, as it shows the effect of adenosine on AV conduction, but in addition the effect on atrial refractoriness.
+The first tracing is clearly atrial flutter with an atrial rate of 270/min, and a ventricular rate of 135/min. The second recording shows much faster atrial activity (Note the distance between the turquoise arrows and the yellow arrows which mark out 3 atrial cycles). The second tracing is either atrial fibrillation (a know result of adenosine) or a faster atrial flutter (type II flutter) with variable block. Both of these effects could be seen as a result of the decrease in the atrial refractory period by the stimulation of the adenosine.
+|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
+}}