#Korea University #Liver Disease #Atrial Fibrillation

New Insights into Heart Failure Risk

A recent study conducted by researchers from the Korea University College of Medicine has identified liver metabolic disease as a critical risk factor for heart failure in elderly patients suffering from atrial fibrillation (AFib). Atrial fibrillation, a prevalent cardiac arrhythmia, affects over 64 million individuals globally and is a significant contributor to heart failure (HF).

Understanding Steatotic Liver Disease

The study draws attention to steatotic liver disease (SLD), which encompasses various liver disorders characterized by excessive fat accumulation. This includes metabolic dysfunction-associated SLD (MASLD), which occurs even in people with a healthy body weight; MASLD with increased alcohol intake (MetALD); and alcoholic liver disease (ALD).

Research indicates a close link between these SLD types, AFib, and convoluted pathologies of heart failure. However, the intricate relationships involving cardiac, hepatic, and metabolic health within the context of AFib stratified by SLD subtype remain inadequately explored.

Study Findings

Led by Professor Seogsong Jeong, researchers analyzed health data from 7,543 adults aged 60 and older, all diagnosed with AFib. This nationwide study, which included follow-ups over approximately nine years, sought to determine whether the existence of SLD and its various subtypes heightened HF risk.

Results indicated that patients with any form of SLD faced a markedly increased risk of developing heart failure compared to their counterparts without these liver conditions. Notably, a graded risk pattern emerged: individuals with MASLD had the lowest risk, while those with MetALD and ALD exhibited progressively heightened risks—ALD representing the highest danger. This suggests an additive effect of metabolic and alcohol-induced liver damage on cardiac health.

Implications for Heart Failure Prediction

By integrating liver health indicators into routine AFib evaluations, healthcare professionals can enhance heart failure risk assessments. The study reveals potential dose-response relationships among alcohol consumption, fatty liver index, and serum glucose levels, illustrating how liver dysfunction can collectively raise heart failure risks among older adults with AFib.

Professor Jeong emphasized, “Fatty liver disease develops through different pathways, which may significantly influence how AFib transitions to heart failure. This study enhances our understanding of these complex interactions.”

The findings underscore the importance of the _