All the findings in wolf Parkinson white syndrome except
ECG shows a sho P-R interval (<0.12 s), slurred initial poion of the QRS (delta wave), and prolonged QRS duration produced by slow conduction through direct activation of ventricular myocardium over the AP Ref Harrison 20th edition pg 1435
Narrow QRS complexes
Normal QT interval
Slurred and tall QRS
Sho PR interval
General anatomy