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Hepatocellular carcinoma is the most common type of malignant tumour in Asia. Treatment is decided according to the staging system with information on tumour burden and liver function. The Barcelona Clinic Liver Cancer staging system is the most commonly used staging system for the selection of appropriate treatments worldwide, and although it is highly evidenced-base, it has very strict guidelines for treatment. In Asian countries, many efforts have been made to expand the indications of each treatment and combination therapies as well as alternative therapies for better outcomes. The guidelines in Asia are less evidence-based than those in Western countries. More aggressive treatments for hepatocellular carcinoma are generally employed in the guidelines of Asian countries. Surgical resection is frequently employed for selected hepatocellular carcinoma patients with the Barcelona Clinic Liver Cancer stages B and C, and combination therapies are sometimes selected, which are contrary to the recommendations of American and European association for the study of the liver guidelines. Recently, a paradigm shift in treatments for advanced hepatocellular carcinoma has occurred with molecular targeted agents, antibodies and immune checkpoint inhibitors in Asia. Atezolizumab+bevacizumab therapy has become the first-line systemic treatment ineligible for radical treatment or transarterial chemoembolization in Asian countries. The overall survival of patients with hepatocellular carcinoma varies substantially across Asia. Taiwan and Japan have the best clinical outcomes for patients with hepatocellular carcinoma worldwide. Intensive surveillance programmes and the development of radical and non-radical treatments are indispensable for the improvement of prognosis in patients with hepatocellular carcinoma.
Torimura et al. (Sat,) studied this question.