Original file (3,004 × 1,599 pixels, file size: 1.39 MB, MIME type: image/jpeg)
These are two interesting strips that show a rate dependent bundle branch block that is probably a left bundle branch morphology. In the first recording a PVC (labeled V) creates a long RR interval and then allows the left bundle to recover and hence the narrow QRS complex. The lower strip shows the opposite where a PVC couplet shortens the RR interval and induces the left bundle branch again.
EKG World Encyclopedia http://cme.med.mcgill.ca/php/index.php , courtesy of Michael Rosengarten BEng, MD.McGill
Michael Rosengarten BEng, MD.McGill
Click on a date/time to view the file as it appeared at that time.
|current||06:31, 21 February 2012||3,004 × 1,599 (1.39 MB)||DarrelC|