Original file (3,004 × 1,599 pixels, file size: 4.45 MB, MIME type: image/jpeg)
This is a recording that shows the spontaneous termination of atrial flutter. The termination occurs just at the first lead switch (e.g. lead I to aVR). Note that the QRS does not change but is deformed by the large flutter waves that are running at a rate of about 300/min. The QRS voltages (minus the flutter waves) is low in the precordial leads (< 5 mm).
EKG World Encyclopedia http://cme.med.mcgill.ca/php/index.php , courtesy of Michael Rosengarten BEng, MD.McGill
Michael Rosengarten BEng, MD.McGill
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|current||00:23, 21 February 2012||3,004 × 1,599 (4.45 MB)||DarrelC|