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  • Title: Renal hemodynamic changes in children with liver cirrhosis.
    Author: Abdallah AF, Bakr AM, El-Haggar M, Amer T.
    Journal: Pediatr Nephrol; 1999 Nov; 13(9):854-8. PubMed ID: 10603136.
    Abstract:
    To assess the sensitivity of duplex Doppler ultrasonography in detecting early impairment of renal function in childhood cirrhosis, intrarenal arterial pulsatility index (PI) and resistive index (RI) were measured in 10 ascitic and 11 non-ascitic children with liver cirrhosis and normal creatinine clearance and 10 age- and sex-matched controls. PI and RI were higher in ascitic than non-ascitic children [PI 1.54+/-0.4 vs. 1.1+/-0.2 (mean +/- SD), P=0. 006; RI 0.76+/-0.07 vs. 0.68+/-0.07, P=0.03). Non-ascitic patients had higher PI and RI than controls (P=0.002 and 0.0001, respectively). PI was inversely correlated with creatinine clearance (r=-0.54, P=0.01). A significant positive relationship was observed between both PI and RI and Child score (r=0.47, P=0.009; r=0.45, P=0. 01, respectively). However, no significant correlation was observed between PI and RI and portal hypertension. We conclude that renal vascular resistance indexes evaluated by duplex Doppler ultrasonography are increased in the non-ascitic phase of cirrhosis. Development of ascites is associated with a further increase in these indexes. The resistance indexes are best correlated with severity of hepatocellular dysfunction, assessed by Child score, but not with portal hypertension. Hence, monitoring these indexes, especially PI, is a non-invasive means of studying early renal hemodynamic alteration in childhood cirrhosis.
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