Edoardo G Giannini1, Vincenzo Savarino. 1. Gastroenterology Unit, Department of Internal Medicine, University of Genoa, 16132, Genoa, Italy, egiannini@unige.it.
Abstract
BACKGROUND: (13)C-Aminopyrine breath test ((13)C-ABT) is a non-invasive, dynamic, quantitative liver function test, and the model for end-stage liver disease (MELD) is a recognised biochemical score used to predict survival in patients with cirrhosis. AIMS: The purpose of this study was to evaluate the relationship between the (13)C-ABT and MELD score in a cohort of cirrhotic patients and, moreover, to assess the prognostic value of (13)C-ABT results in the same group of patients. PATIENTS AND METHODS: Forty-six patients with cirrhosis and without hepatocellular carcinoma who underwent (13)C-ABT and who had at least 1-year follow-up were prospectively included in this study. MELD score was calculated at entry into the study in all patients. End-points of the study were 1-year liver-related death or liver transplantation. RESULTS: (13)C-ABT %dose/h at 30 min (%dose/h30) results showed significant, inverse correlation with MELD scores (r = -0.414, P = 0.004). During 1-year follow-up nine patients died (19.6 %) and two were transplanted (4.3 %). Median (13)C-ABT %dose/h30 results (3.2 vs. 1.8) were significantly higher in patients who survived as compared to those who died or underwent transplantation (P = 0.04). Receiver operating characteristics curves showed that a (13)C-ABT %dose/h30 cut-off of 2.0 had the best accuracy (c-index = 0.717) in assessing 1-year prognosis. CONCLUSIONS: We observed a correlation between a flow-independent quantitative liver function test and the MELD score, and found that the (13)C-ABT may accurately provide long-term prognostic information in cirrhotic patients.
BACKGROUND: (13)C-Aminopyrine breath test ((13)C-ABT) is a non-invasive, dynamic, quantitative liver function test, and the model for end-stage liver disease (MELD) is a recognised biochemical score used to predict survival in patients with cirrhosis. AIMS: The purpose of this study was to evaluate the relationship between the (13)C-ABT and MELD score in a cohort of cirrhotic patients and, moreover, to assess the prognostic value of (13)C-ABT results in the same group of patients. PATIENTS AND METHODS: Forty-six patients with cirrhosis and without hepatocellular carcinoma who underwent (13)C-ABT and who had at least 1-year follow-up were prospectively included in this study. MELD score was calculated at entry into the study in all patients. End-points of the study were 1-year liver-related death or liver transplantation. RESULTS:(13)C-ABT %dose/h at 30 min (%dose/h30) results showed significant, inverse correlation with MELD scores (r = -0.414, P = 0.004). During 1-year follow-up nine patients died (19.6 %) and two were transplanted (4.3 %). Median (13)C-ABT %dose/h30 results (3.2 vs. 1.8) were significantly higher in patients who survived as compared to those who died or underwent transplantation (P = 0.04). Receiver operating characteristics curves showed that a (13)C-ABT %dose/h30 cut-off of 2.0 had the best accuracy (c-index = 0.717) in assessing 1-year prognosis. CONCLUSIONS: We observed a correlation between a flow-independent quantitative liver function test and the MELD score, and found that the (13)C-ABT may accurately provide long-term prognostic information in cirrhotic patients.
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