group 1 , who received more total kcl than group 2 ( p less than .005 ) , experienced more high-grade ventricular ectopia during both reperfusion ( p less than .001 ) and the immediate postoperative period ( p less than .001 ) , and required more lidocaine hydrochloride ( p less than .001 ) for arrhythmias .
C0546869
lidocaine hydrochloride
C0003811
arrhythmias