File:E0003158.jpg: Difference between revisions

Latest revision as of 23:58, 18 February 2012

Description	This is an interesting example of time dependent capture. Note the the venticular pacemaker captures for several beats but then fails to capture. Capture is restored when the pacer spike falls near to a conducted sinus beat. The underlying rhythm shows a lengthening of the pr interval before a p wave fails to conduct. This suggests a Mobitz I A/V block.
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
Bits per component	8 8 8
Pixel composition	RGB
Orientation	Normal
Number of components	3
Horizontal resolution	72 dpi
Vertical resolution	72 dpi
Software used	Adobe Photoshop CS5 Windows
File change date and time	06:55, 18 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	14:55, 18 February 2012
Unique ID of original document	4856E29C11D40F15A9CCD45DD9942DDA
Copyright status	Copyright status not set

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 == Summary ==
 {{Information
-|Description = This is an example of time dependent capture. The native QRS complexes are small (and grow larger due to the auto gain control on this recorder), and the rhythm is probably a nodal escape with sinus arrest. The pacer is a dual chamber where the atrial lead captures but the ventricular lead captures only if it falls close to a T wave of one of the native escape beats.
+|Description = This is an interesting example of time dependent capture. Note the the venticular pacemaker captures for several beats but then fails to capture. Capture is restored when the pacer spike falls near to a conducted sinus beat.
+The underlying rhythm shows a lengthening of the pr interval before a p wave fails to conduct. This suggests a Mobitz I A/V block.
 |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