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Published on: July 19, 2024
Colorectal cancer in metabolic dysfunction-associated steatotic liver disease: an international Delphi consensus
Chu-Tian Wu1, Giovanni Targher2,3, Christopher D Byrne4
1Department of Gastroenterology, The Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, China.
Background:
Metabolic dysfunction-associated steatotic liver disease (MASLD) is the most common chronic liver disease worldwide. Epidemiological evidence indicates that MASLD is associated with an increased risk of developing colorectal cancer (CRC). MASLD and CRC share many common risk factors and pathophysiological mechanisms, but an optimal strategy for identifying and managing CRC risk in individuals with MASLD remains lacking.
Objective:
This study aimed to achieve consensus on the risk of CRC in individuals with MASLD.
Design:
A Delphi survey was conducted by a multidisciplinary panel of 35 international experts from diverse medical fields across Asia, Europe, North America, South America, Oceania and Africa. Experts evaluated 17 statements across three domains: epidemiology, pathogenesis and management.
Results:
Consensus was achieved on all 17 statements. MASLD is associated with an increased risk of CRC, and metabolic burden further increases this risk. Furthermore, the severity of MASLD is associated with worse outcomes in patients with MASLD and CRC. The gut-liver axis and gut dysbiosis play key roles in the development of MASLD and CRC, while leptin and adiponectin may also be involved. Weight loss with lifestyle interventions, early CRC screening, bariatric surgery and use of GLP-1 receptor agonists are highlighted as potential risk-reduction strategies.
Conclusion:
The expert panel emphasises the need for greater clinical vigilance for CRC among individuals with MASLD. This consensus supports a paradigm shift towards earlier, risk-adapted screening and integrated metabolic management to reduce the burden of CRC in the MASLD population.
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