McGill Case 10

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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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These are two recording from a patient in her seventies who had a history of A/V nodal tachycardia which had been ablated 5 years previously. Four years after the ablation the patient developed syncope and was found to have Mobitz II A/V block on a Holter monitor. In spite of implantation of a pacemaker the patient continued to have syncope. The strips come from a Holter monitor done after the implantation of the pacemaker.