The simultaneous occurrence of ventricular pre-excitation, left bundle branch block, and delayed A-V conduction.
D000368:Aged; D002037:Bundle-Branch Block / Q000150:complications*; D004562:Electrocardiography; D006325:Heart Atria; D006352:Heart Ventricles; D006801:Humans; D008297:Male; D014672:Vectorcardiography; D014927:Wolff-Parkinson-White Syndrome / Q000150:complications*