Ventricular pre-excitation.

Pilots and new applicants with asymptomatic 'safe' WPW syndrome should be allowed to fly but not as pilot in sole command. Professional pilots with tachyarrhythmia related to a pre-excitation syndrome should usually be disqualified . Personnel who have undergone successful surgical treatment by ablation of an accessory pathway could be considered for recertification to fly but drug therapy is at present unacceptable.