Routine examination of a 17 years old asymptomatic boy reveals sho PR interval, and delta wave on ECG. The least effective measure for the boy would be:

Ans.b. Tredmill stress testThis is a case of WPW syndrome. There is no use all treadmill test in these cases as results are often misleading.Holter monitoring would be indicated to detect the development of any arrythmias. Beta-blockers have also been used in asymptomatic cases only as a preventive therapy against the development of PSVT.