1Stremitzer S,Tamandl D, et al. Value of hepatic venous pressuregradient measurement before liver resection for hepatocellular carcino-ma. British Journal of Surgery 2011 ; 98 : 1752 - 1758.
2Blanchet L,Lebrec D. Changes in splanchnic blood flow in portal hy-pertensive rats. Eur J Clin Invest 1982; 12:327 - 330.
3Valla D,Poynard T, Bercofi E,Bataille C, Goldfarb G, Lebrec D.Systemic circulatory syndrome in patients with cirrhosis. Relationshipwith hepatocellular failure and portal hypertension. Gastroenterol ClinBiol 1984 ;8 :321 -324.
4Choi YJ, Baik SK, Park DH,Kim MY, Kim HS, Lee DK, el al.Comparison of Doppler ultrasonography and the hepatic venous pres-sure gradient in assessing portal hypertension in liver cirrhosis. JGastroenterol Hepatol 2003 ;18 :424 -429.
5Hasegawa T,Kimura T, Sasaki T, and Okada A,“ Plasma endothe-lin — 1 level as a marker reflecting the severity of portal hypertensionin biliary atresia,M Journal of Pediatric Surgery, vol. 36, no. 11,pp. 1609 -1612, 2001.
6Pawar R, Kemp W , Roberts S, Krum H, Yandle T, and HardikarW, “Urotensin II levels are an important marker for the severity ofportal hypertension in children,” Journal of Pediatric Gastroenterolo-gy and Nutrition, vol. 53,no. 1,pp. 88 -92 , 2011.
7P. Vallance and J. Leiper, “Cardiovascular biology of the asymmet-ric dimethylarginine : dimethylarginine dimethylaminohydrolase path-way ,Arteriosclerosis, Thrombosis, and Vascular Biology, vol. 24,no. 6,pp. 1023 -1030,2004.
8P. Lluch, B. Torondel, P. Medina et al.,“Plasma concentrations ofnitric oxide and asymmetric dimethylarginine in human alcoholic cir-rhosis ,M Journal of Hepatology, vol. 41, no. 1,pp. 55 - 59,2004.
9F. Vizzutti, R. G. Romanelli, U. Arena et al.,“ADMA correlateswith portal pressure in patients with compensated cirrhosis, ” Europe-an Journal of Clinical Investigation, vol. 37, no. 6,pp. 509 -515,2007.
10S. S. Abdelmoneim, J. Talwalkar,S. Sethi et al. , “A prospectivepilot study of circulating endothelial cells as a potential new biomark-er in portal hypertension,” Liver International, vol. 30,no. 2,pp.191 - 197,2010.
