Current therapy for preventing the first variceal bleed includes beta-blocker and variceal band ligation (VBL). VBL has lower bleeding rates, with no differences in survival, whereas betablocker therapy can be limited by side effects. Carvedilol, a non-cardioselective vasodilating beta-blocker, is more effective in reducing portal pressure than propranolol; however, there have been no clinical studies assessing the efficacy of carvedilol in primary prophylaxis. The goal of this study was to compare carvedilol and VBL for the prevention of the first variceal bleed in a randomized controlled multicenter trial. One hundred fifty-two cirrhotic patients from five different centers with grade II or larger esophageal varices were randomized to either carvedilol 12.5 mg once daily or VBL performed every 2 weeks until eradication using a multibander device. T he most serious complication of portal hypertension is variceal hemorrhage. The annual incidence of esophageal varices in patients with cirrhosis is approximately 5%, 1 and a third of these will bleed. 2,3 Current therapy with propranolol results in a reduction in the first variceal bleed and mortality compared with placebo. 4,5 There have been two recent metaanalyses with 16 trials studied in total. 6,7 The one showed variceal band ligation (VBL) to be more effective than beta-blockers in primary prevention of variceal hemorrhage, although there was no difference in survival. 7 The other showed similar overall results, although when trials with unclear bias control and follow-up less than 20 months were excluded, the difference in bleeding was not present. 6 Carvedilol is a potent non-cardioselective betablocker, with weak vasodilating properties due to alpha-1 blockade. 8 A fall in both intrahepatic and portocollateral resistance contributes to the enhanced effects on portal pressure reduction through blockade of alpha-1 receptors as has been shown with prazosin. 9-11 A reduction in the hepatic venous pressure gradient (HVPG) of 8%-43% was observed with carvedilol in nine published hemodynamic studies involving 158 patients. [12][13][14][15][16][17][18][19][20] Carvedilol was also found to have a greater portal hypotensive effect than propranolol in randomized controlled hemodynamic studies. 15,17

SUMMARY BackgroundBleeding from ectopic varices is uncommon but can be difficult to manage.

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Patients with advanced liver disease are at increased risk of cardiovascular events, especially following orthotopic liver transplantation (OLT). Coronary artery calcification (CAC) is a novel and independent predictor of cardiovascular risk, but its prevalence and utility in patients with cirrhosis are unknown. The aim of this study was to define the prevalence of CAC and its association with markers of disease severity and standard measures of cardiovascular risk in a large cohort of patients undergoing OLT assessment. A single-center, prospective, observational study of 147 consecutive patients undergoing assessment for OLT was performed. CAC scores were derived with the Agatston method from thoracic computed tomography scans and correlated with cardiovascular risk factors and measures of liver disease severity. There were 101 patients (66 males) with a mean age of 53.2 years; 46 patients were excluded because the CAC score was not reported. The median CAC score was 40 HU (range, 0-3533). Correlations were identified between the CAC score and age (r ϭ 0.477; P Ͻ 0.001), male sex (r ϭ 0.262; P ϭ 0.008), family history of cardiovascular disease (r ϭ 0.208; P ϭ 0.036), Framingham risk score (r ϭ 0.621; P Ͻ 0.001), Model for End-Stage Liver Disease score (r ϭ 0.221; P ϭ 0.027), systolic blood pressure (r ϭ 0.285; P ϭ 0.004), diastolic blood pressure (r ϭ 0.267; P ϭ 0.007), cytomegalovirus status (r ϭ 0.278; P ϭ 0.005), fasting glucose (r ϭ 0.330; P ϭ 0.001), number of coronary vessels involved (r ϭ 0.899; P Ͻ 0.001), and components of the metabolic syndrome (r ϭ 0.226; P ϭ 0.026). After multivariate analysis, age, systolic blood pressure, fasting glucose, number of features of metabolic syndrome, and number of vessels involved remained significantly associated with CAC. In conclusion, this study identified a high prevalence of occult coronary artery disease in patients undergoing OLT assessment and identified a strong relationship between CAC scores and a limited number of specific cardiovascular risk factors. The usefulness of these factors in predicting perioperative and postoperative cardiovascular events in patients undergoing OLT requires prospective evaluation. Liver