Diagnostic Value of the13C Methacetin Breath Test in Various Stages of Chronic Liver Disease

Autor: Hamizah Razlan, Sanjiv Mahadeva, Mei-Ling Sharon Tai, Nurhayaty Muhamad Marzuki, Azhar-Shah Shamsul, Tze-Zen Ong
Rok vydání: 2011
Předmět:
Zdroj: Gastroenterology Research and Practice, Vol 2011 (2011)
ISSN: 1687-630X
1687-6121
DOI: 10.1155/2011/235796
Popis: The accuracy of the13C-methacetin breath test (13C-MBT) in differentiating between various stages of liver disease is not clear. A cross-sectional study of Asian patients was conducted to examine the predictive value of the13C-MBT in various stages of chronic liver diseases. Diagnostic accuracy of the breath test was determined by sensitivity, specificity, positive predictive value, negative predictive value, and area under the curve analysis. Seventy-seven patients (47 men/30 women, mean age50±16years) were recruited. Forty-seven patients had liver cirrhosis (Child Pugh A = 11, Child Pugh B = 15, and Child Pugh C = 21), 21 had fibrosis, and 9 had chronic inflammation. The sensitivity and positive predictive value for liver fibrosis, cirrhosis (all stages), Child-Pugh A, Child-Pugh B, and Child-Pugh C were 65% and 56%, 89% and 89%, 67% and 42%, 40% and 40%, and 50% and 77%, respectively. Area under curve values for fibrosis was 0.62 (0.39–0.86), whilst that for cirrhosis (all stages) was 0.95 (0.91–0.99). The13C-methacetin breath test has a poor predictive value for liver fibrosis but accurately determines advanced cirrhosis.
Databáze: OpenAIRE