fifteen patients underwent surgery for control of ventricular tachycardia : aggressive , map-guided endocardial resection ( mean 26.5 +/- 14.2 cm2 ) in 12 patients with identified sites of tachycardia origin and extensive resection of visible endocardial scar ( 2 patients ) or encircling endocardial ventriculotomy ( 1 patient ) in those in whom the sites of origin of all clinical tachycardias remained undetermined .
C0042514
ventricular tachycardia
C0039231
tachycardias