Model to Predict Progression of Liver Disease in Heavy Drinkers Is Useful Today and Supports the Future of Deep Learning

Associations between neighborhood built-environment characteristics and hepatic steatosis: The Multi-Ethnic Study of Atherosclerosis

OBJECTIVE

To characterize the spatio-temporal association between features of the built environment and subclinical liver disease.

DESIGN

We used data from a large community-based population, the Multi-Ethnic Study of Atherosclerosis (2000-2002, N = 5542) with linked historical residential data that characterized past exposure to alcohol outlets (bars and liquor stores), healthy foods stores, and physical activity facilities (1990-2001). We examined whether and how past residential relate to hepatic steatosis (proxied by liver attenuation measured using computed tomography, with lower attenuation indicating higher hepatic steatosis). Hepatic steatosis is the most common.

RESULTS

We found significant associations between past residential exposure to neighborhood alcohol outlets, healthy food and physical activity resources, and hepatic steatosis. The spatial scale where the association between these features of the built environment and hepatic steatosis operate lies within 3 km (∼2 miles). The average association on liver attenuation per additional bar, liquor, healthy food store, and physical activity facility within a 2-mile buffer, were: -0.06 (95% CI -0.09, -0.03), -0.02 (95% CI -0.04, -0.009), 0.05 (95% CI 0.02, 0.07), 0.02 (95% CI 0.01, 0.04), respectively, in the preceding year of the measurement of hepatic steatosis. Furthermore, the association and spatial scale remains consistent ten years prior to the measurement of hepatic steatosis.

CONCLUSION

Our results suggest that modifying neighborhood environments (decreasing alcohol outlets and improving access to healthy food and physical activity) may represent an effective population-wide approach to reduce liver-related morbidity.

MELD 3.0 in Advanced Chronic Liver Disease

The MELD (model for end-stage liver disease) 3.0 score was developed to replace the MELD-Na score that is currently used to prioritize liver allocation for cirrhotic patients awaiting liver transplantation in the United States. The MELD 3.0 calculator includes new inputs from patient sex and serum albumin levels and has new weights for serum sodium, bilirubin, international normalized ratio, and creatinine levels. It is expected that use of MELD 3.0 scores will reduce overall waitlist mortality modestly and improve access for female liver transplant candidates. The utility of MELD 3.0 and PELDcre (pediatric end-stage liver disease, creatinine) scores for risk stratification in cirrhotic patients undergoing major abdominal surgery, placement of a transjugular intrahepatic portosystemic shunt, and other interventions requires further study. This article reviews the background of the MELD score and the rationale to create MELD 3.0 as well as potential implications of using this newer risk stratification tool in clinical practice.