Increased cerebrovascular resistance in cirrhotic patients with ascites

摘要: Studies assessing regional hemodynamics in patients with cirrhosis and ascites have shown vasodilation the splanchnic circulation vasoconstriction renal brachial femoral artery vascular territories. The aim of this study was to assess cerebral resistance cirrhotic ascites. resistive index middle (an resistance) a interlobar were measured by Doppler ultrasonography 7 healthy subjects: 13 compensated 24 (13 failure). arterial blood pressure activity renin-angiotensin sympathetic nervous systems, as estimated plasma renin norepinephrine concentration, respectively, also measured. significantly increased (0.68 +/- 0.05, mean SD) compared without (0.60 0.01, P < .05) (0.52 .01). Renal (0.77 0.01) other two groups 0.02 0.62 0.00, respectively; .001). showed direct correlation (r = .73, .01), .61, .53, an inverse -.45, These results indicate that there is which probably related hypotension overactivity vasoconstrictor systems.