the functional refractory period of the av node was also lengthened with 3 mg/kg of perhexiline in the nerve-intact dogs ( from 246.0 +/- 15.7 ) to 270.0 +/- 15.5 msec ) , but was scarcely affected by perhexiline in the cardiac denervated dogs ( from 296.7 +/- 15.7 to 303.2 +/- 13.6 msec ) .
C0004247
av node
C0018787
cardiac