Artificial Intelligence-Enabled Stool Analysis for Lactulose Titration Assistance in Hepatic Encephalopathy Through a Smartphone Application

Systems of care that improve outcomes for people with hepatic encephalopathy

Hepatic encephalopathy (HE) is a critical neuropsychiatric complication of liver cirrhosis with a significant impact on patient quality of life and survival. The global prevalence of cirrhosis and associated HE necessitates a comprehensive understanding of the condition and effective systems of care to optimize outcomes. This review addresses the epidemiology, classification, diagnosis, and management of HE, with an emphasis on systems of care that improve outcomes for people with HE. Current diagnostic challenges include differentiating cognitive deficits attributable to HE from those caused by other etiologies, highlighting the need for accurate diagnostic methods. Traditional psychometric tests, while valuable for diagnosing covert HE (CHE), are limited in their ability to predict overt HE (OHE) due to various confounding factors. As a result, non-psychometric tools have been developed to provide outcome-based predictions aligned with the clinical course of HE. The management of HE includes addressing precipitating factors, pharmacologic interventions to reduce ammonia levels, and supportive care, with lactulose and rifaximin playing a central role. Preventive strategies with the use of remote monitoring in the outpatient management of HE, integrating technology for real-time tracking of therapy compliance and symptom evolution, could contribute to reducing hospital readmissions and improving patient care.

Hepatic encephalopathy: experimental drugs in development and therapeutic potential

INTRODUCTION

Hepatic encephalopathy (HE) presents a complex pathophysiology, creating multiple potential treatment avenues. This review covers current and emerging treatments for HE.

AREAS COVERED

Standard therapies, including non-absorbable disaccharides and rifaximin, are widely used but show inconsistent efficacy. Alternatives such as polyethylene glycol and L-ornithine L-aspartate have been effective in certain cases. Advancements in understanding HE reveal a growing need for personalized treatments. Novel approaches targeting immune modulation and neuroinflammation are under investigation, though clinical translation is slow. Nutritional interventions and fecal microbiota transplantation show potential but lack robust evidence. Innovative therapies like gene and cell therapies, as well as extracellular vesicles from mesenchymal stem cells, present promising avenues for liver disease treatment, potentially benefiting HE.

EXPERT OPINION

A key challenge in HE research is the design of randomized clinical trials, which often suffer from small sample sizes, heterogeneity in patient population, and inconsistent blinding. Additionally, the multifactorial nature of HE, together with a high spontaneous response rate, complicates efforts to isolate treatment effects. Despite current limitations, ongoing research and technological advances hold promise for more effective and individualized HE treatments in the future.

Envisioning how to advance the MASH field

Since 1980, the cumulative effort of scientists and health-care stakeholders has advanced the prerequisites to address metabolic dysfunction-associated steatotic liver disease (MASLD), a prevalent chronic non-communicable liver disease. This effort has led to, among others, the approval of the first drug specific for metabolic dysfunction-associated steatohepatitis (MASH; formerly known as nonalcoholic steatohepatitis). Despite substantial progress, MASLD is still a leading cause of advanced chronic liver disease, including primary liver cancer. This Perspective contextualizes the nomenclature change from nonalcoholic fatty liver disease to MASLD and proposes important considerations to accelerate further progress in the field, optimize patient-centric multidisciplinary care pathways, advance pharmacological, behavioural and diagnostic research, and address health disparities. Key regulatory and other steps necessary to optimize the approval and access to upcoming additional pharmacological therapeutic agents for MASH are also outlined. We conclude by calling for increased education and awareness, enhanced health system preparedness, and concerted action by policy-makers to further the public health and policy agenda to achieve at least parity with other non-communicable diseases and to aid in growing the community of practice to reduce the human and economic burden and end the public health threat of MASLD and MASH by 2030.