File:E339.jpg: Difference between revisions

Latest revision as of 10:44, 21 February 2012

Description	This is a tracing in taken from an 80 year old man with a Medtronic Model 8081 unipolar ventricular pacemaker. The patient had come to the clinic for a syncopal episode. During this recording the patient was doing an isometric exercise with his left arm. The monitor, in this case a Medtronic programmer, adds markers to the EKG where it detects pacer spikes. These markers look like pacemaker spikes. Spike detection is controlled by the artifact setting in the programmer, and in some cases, such as in this case, over-detect ( as in the second spike seen above). The pacemaker was set to 60/min. and clearly there is a long period of imhibition of the pacemaker by the pectoral muscle with isometric exercise. This may have been related to the patient's symptoms. The problem was corrected by decreasing the sensitivity of the pacemaker.
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	07:05, 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	15:05, 21 February 2012
Unique ID of original document	4856E29C11D40F15A9CCD45DD9942DDA
Copyright status	Copyright status not set

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+== Summary ==
+{{Information
+|Description = This is a tracing in taken from an 80 year old man with a Medtronic Model 8081 unipolar ventricular pacemaker. The patient had come to the clinic for a syncopal episode. During this recording the patient was doing an isometric exercise with his left arm.
+The monitor, in this case a Medtronic programmer, adds markers to the EKG where it detects pacer spikes. These markers look like pacemaker spikes. Spike detection is controlled by the artifact setting in the programmer, and in some cases, such as in this case, over-detect ( as in the second spike seen above). The pacemaker was set to 60/min. and clearly there is a long period of imhibition of the pacemaker by the pectoral muscle with isometric exercise. This may have been related to the patient's symptoms. The problem was corrected by decreasing the sensitivity of the pacemaker.
+|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
+}}