Impaired pressor reactivity in cirrhosis: Evidence for a peripheral vascular defect
Alastair J. Macgilchrist, David Sumner, John L. Reid – 1 April 1991 – The blood pressure responses to intravenous infusions of norepinephrine and angiotensin II, sympathetic and nonsympathetic vasoconstricting agents, respectively, were measured in 20 patients with cirrhosis (10 Child‐Pugh grade A and 10 Child‐Pugh grades B or C) and in 20 healthy subjects. The log PD20 (dose of agonist required to raise blood pressure by 20 mm Hg) for norepinephrine was 4.78 ± 0.36 (mean ± S.D.) in patients with severe cirrhosis and 4.36 ± 0.37 in controls, p < 0.01.