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This is a rhythm strip from a patient with ventricular pre-excitation. Of interest is that the pre-excitation is manifested by premature atrial beats which cause four pre-excited ventricular complex (labeled V). This suggests that the refractory period of the A/V node is longer than that of the accessory pathway.
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||05:30, 21 February 2012||3,004 × 1,517 (1.39 MB)||DarrelC|