Prognostic value of renal vascular impedance in patients with hepatic cirrhosis in risk for developing hepatorenal syndrome

Aim of the workTo evaluate the intrarenal arterial changes in patients with hepatic cirrhosis to anticipate development of hepatorenal syndrome.Materials and methodsStudy population included 155 subjects divided into five groups; group (1): control subjects; group (2): patients with compensated cirrhosis; group (3): patients with decompensated cirrhosis without ascites; group (4): patients with decompensated cirrhosis and ascites; and group (5): patients with hepatorenal syndrome.ResultsIn group 5; the mean value of RI was significantly high as well as groups 4 and 3, as related to groups 2 and 1. The PI was significantly high in groups 5, 4, and 3, as related to groups 2 and 1. High RIs were received in 83% of group 5, 56% of group 4, 41% of group 3, 32% of group 2, and 8% of group 1. On the other hand, high PIs were received in 83% of group 5, 78% of group 4, 71% of group 3, 41% of group 2, and 3% of group 1. Renal vascular impedance measurement had sensitivity of 71%, specificity of 96%, PPV of 92%, and NPV of 86%.ConclusionRenovascular impedance values are good specific and positive predictive tools for hepatorenal syndrome development in patients with hepatic cirrhosis.