<prompt> The drug of choice in patient with Parkinson-White syndrome with fibrillation is -DigitalisProcainamideVerapamilAdenosine  <response>: Ans. is b i.e., Procainamide In WPW syndromea If there is life threatening rapid ventricular response DC cardioversion.b In non-life threatening situations Lidocaine or procainamide are DOC, ibutilide is an alternative.o Radiofrequency catheter ablation of bypass tracts is the treatment of choice for permanant cure of WPW syndrome. 