The development of permanent unidirectional anterograde block in the accessory pathway of a patient with Wolff-Parkinson-White syndrome and observations on the mechanism of the ensuing incessant circus tachycardia.
D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D008875:Middle Aged; D014927:Wolff-Parkinson-White Syndrome / Q000503:physiopathology*