McGill Case 305

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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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Wolf-Parkinson-White syndrome with atrial fibrillation irregularly irregular, wide complex tachycardia impulses from the atria are conducted to the ventricles via either both the AV node and accessory pathway producing a broad fusion complex or just the AV node producing a narrow complex (without a delta wave) or just the accessory pathway producing a very broad 'pure' delta wave people who develop this rhythm and have very short R - R intervals are at higher risk of VF