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.
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.
