McGill Case 256

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This case report is kindly provided by Michael Rosengarten from McGill and is part of the McGill Cases. These cases come from the McGill EKG World Encyclopedia.

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The recording shows the intiation of supraventricular tachycardia. There appears to be a p wave on the last part of the last sinus t wave suggesting that this may be an ectopic atrial tachycardia or possibly an atypical form of A/V nodal reentry where one sees the retrograde p wave before the QRS.