in 30 patients admitted to a coronary care unit for an anterior ( n = 14 ) or inferior ( n = 16 ) transmural myocardial infarction ( mi ) , we measured 1 ) the increase in rr interval induced by stimulating carotid baroreceptors through progressive reductions in neck chamber pressure , 2 ) the increase in rr interval induced by stimulating arterial baroreceptors through intravenous boluses of phenylephrine , and 3 ) the reduction in rr interval induced by deactivating arterial baroreceptors through intravenous boluses of nitroglycerin .
C0027051
myocardial
C0017887
nitroglycerin