Background and AimCurrently available staging systems for cholangiocarcinoma (CCA) are not applicable to patients with unresectable stage. A new clinical staging system for perihilar CCA (pCCA) subtype has been recently developed in a US cohort, with a good performance in predicting survival of all pCCA patients. We aimed to determine outcomes of pCCA patients and evaluate predictive performance of this staging system in an Asian population.MethodsAll 141 patients diagnosed with pCCA between 2003 and 2012 were identified. Clinical information was retrospectively abstracted. Patients were classified into four stages based on the new staging system. Survival predictors were analyzed using the Cox proportional hazard analysis.ResultsOf the 141 pCCA patients, 38 (27%), 101 (72%), and 2 (1%) received resection, palliative biliary drainage ± chemotherapy, and best supportive care, respectively. Survival predictors included resectable disease, tumor size, distant metastasis, and cancer antigen 19‐9 ≥ 1000 U/mL. When classified by clinical stages, 13, 4, 99, and 25 patients were in stages I, II, III, and IV, with median survivals of 18.4, 7.3, 6.3, and 2.6 months; and hazard ratio (95% confidence interval) of 1.0 (reference), 1.7 (0.5–5.5), 3.2 (1.5–6.7), and 10.8 (4.6–25.0), respectively.ConclusionThe clinical staging system has a limited performance in differentiating stage II pCCA patients from stage III patients in the Thai cohort. This can be due to differences in patient characteristics and treatment modalities between the Asian and White pCCA populations. However, the median survivals of patients with other stages are significantly different.
Association of adiposity, measures of metabolic dysregulation, and elevated alanine aminotransferase in subjects with normal body mass index
Abstract Background: Differences in body fat (BF) distribution in patients with normal body mass index (BMI) with elevated alanine aminotransferase (ALT) remains poorly described. Objective: To determine the relationship between total BF, waist circumference (WC), insulin resistance (IR), and cardiometabolic risk profile in subjects with elevated ALT and normal BMI. Methods: We analyzed cross-sectional data from 4,914 US participants in the third National Health and Nutrition Examination Survey database, who were ≥20 years of age, had normal BMI, and had body composition assessed by bioimpedance. Results: Mean ± SD age was 41.4 ± 0.3 years, and 58% participants were women. BF was 20 ± 0.1% in men and 29.9 ± 0.1% in women. As total BF increased by tertiles, there was a tendency towards a higher prevalence of nonalcoholic fatty liver disease in men (6.1%, 6.5%, 9.5%, P = 0.13), but not in women (8.7%, 8.2%, 10.7%, P = 0.71). As WC increased by tertiles, there was a higher prevalence of elevated ALT in men (2.6%, 8.6%, 6.6%, P < 0.0001), but not in women. As ALT increased, men had significantly higher levels of nonhigh density lipoprotein cholesterol (HDL-C), increased apolipoprotein B, increased IR, and lower levels of C-reactive protein, whereas, women had higher levels of non-HDL-C and increased IR. Conclusion: In subjects with normal BMI, increased WC is associated with a higher prevalence of elevated ALT in men, but not in women. Higher levels of ALT correlated with a poor cardiometabolic risk profile.
TheFramingham risk score and heart disease in nonalcoholic fatty liver disease
AbstractThe accuracy of theFramingham risk score (FRS) in identifying patients with nonalcoholic fatty liver disease (NAFLD) at higher 10‐year coronary heart disease (CHD) risk remains unknown. We aimed at evaluating both the baseline probability ofCHDas predicted by theFRSand the actual long‐term occurrence ofCHDinNAFLDpatients. This was a longitudinal study of a community‐based cohort. A total of 309NAFLDpatients were followed up for 11.5 ± 4.1 years (total 3554 person‐years). The overall calculated 10‐yearCHDrisk was significantly higher in theNAFLDcohort than the absoluteCHDrisk predicted by theFRSfor persons of the same age and gender (10.9 ± 9.3% vs. 9.9 ± 5.9%, respectively,P < 0.0001), and higher in men than women (12.6 ± 10.3% vs. 9.6 ± 8.1%, respectively,P = 0.006). New onsetCHDoccurred in 34 patients (11% vs. 10.9% predicted at baseline,P = NS), whereas 279 (89%) patients did not developCHD. Using multivariable analysis, theFRSwas the only variable significantly associated with new onsetCHD(OR = 1.13, 95%CI = 1.05–1.21;P = 0.001). AFRScut‐point of 11 in women, and 6 in men had a sensitivity of 80% and 74%, respectively, and a negative predictive value of 97% and 93% respectively.NAFLDpatients have a higher 10‐yearCHDrisk than the general population of the same age and gender. TheFRSaccurately predicts the higher 10‐yearCHDrisk inNAFLDpatients, and helps identify those patients expected to derive the most benefit from early intervention to preventCHDevents.