to determine whether dissection around a coronary artery and implantation of a flow transducer resulted in partial regional denervation of the heart , the effects of bilateral stimulation of the ansae subclaviae were evaluated on regional left ventricular ( lv ) wall thickening ( wt ) and tissue norepinephrine content in four groups of dogs following 1 ) sham operations ( n = 6 ) ,2 ) implantation of a doppler flow transducer on the left circumflex coronary artery ( n = 6 ) , 3 ) selective circumflex coronary artery denervation with topical phenol application ( n = 5 ) , and 4 ) selective denervation of the posterior lv wall by extensive surgical stripping of the left circumflex coronary artery and local application of phenol ( n = 6 ) .
C0018787
heart
C0226037
left circumflex coronary artery