Stereotactic body radiation therapy:A good dance partner of oligometastatic non-small cell lung cancer to the sound of SINDAS study

The European Organization for Research on Treatment of Cancer Research published a consensus statement to establish the key criteria to define oligometastatic disease(OMD).According to those criteria,all lesions(both primary and metastatic)should be amenable to radical intent treatment with acceptable toxicity.Several retrospective studies have shown that adding local ablative therapy to the treatment of OMD improves outcomes;however,due to the diverse selection criteria and treatment strategies used in those studies,it is difficult to compare directly results to draw definitive conclusions.In recent years,prospective phase II trials,such as the SABR-COMET and"Oligomez"trials,have shown that stereotactic body radiation therapy(SBRT)improves outcomes in patients with OMD.More recently,interim results of the randomised phase 3 SINDAS trial were reported at the annual meeting of the American Society of Clinical Oncology 2020 demonstrating that upfront SBRT added to systemic treatment with tyrosine kinase inhibitors yielded a significant benefit in both progression-free survival and overall survival in patients with epidermal growth factor receptor-mutant oligometastatic non-small cell lung cancer.In the present editorial,we review the definition and historical context of advanced non-small cell lung cancer with OMD.In addition,we review the scientific evidence for local ablative therapy and SBRT and discuss the results of recently published prospective studies.We also discuss in depth the results of the SINDAS study,including the strengths and weaknesses of the study and the barriers to extrapolating these results to routine clinical practice.

Hepatocellular carcinoma: current management and recent advances

BACKGROUND: Hepatocellular carcinoma (HCC) is a major health problem worldwide. It is the fifth most common cancer in the world, and the third most common cause of cancer-related death. Without specific treatment, the prognosis is very poor. The goal of management is 'cancer control'-a reduction in its incidence and mortality as well as an improvement in the quality of life of patients with HCC and their families. This article aims to review the current management of HCC and its recent advances. DATA SOURCES: A MEDLINE database search was performed to identify relevant article using the keywords 'hepatocellular carcinoma', 'hepatectomy', 'liver transplantation', and 'local ablative therapy'. Additional papers and book chapters were identified by a manual search of the references from the key articles. RESULTS: Liver resection and liver transplantation remain the options that give the best chance of a cure. Recent evidence suggests that local ablative therapy may offer comparable survival results in patients with small HCC, and preserved liver function. Transarterial chemoembolization (TACE) is the most promising palliative modality for unresectable HCC, but other techniques, such as transarterial radioembolization (TARE), and local ablative therapy, have also shown comparable results. CONCLUSIONS: Early diagnosis of HCC remains a key goal in improving the prognosis of patients. During the last two decades, operative mortality and surgical outcome of liver resection and liver transplantation for HCC have improved. Progress also has been made in multi-modality therapy which can increase the chance of survival and improve the quality of life for patients with advanced HCC.

Interventional treatments for hepatocellular carcinoma

BACKGROUND: Hepatocellular carcinoma (HCC) is one of the most frequent primary malignant tumors in the world. Hepatic resection and liver transplantation are considered optimal for potential treatment of HCC. However, only 20% of HCCs can be surgically treated. And most of surgically-noneligible patients have to receive interventional managements including local ablation and transarterial chemoembolization (TACE). In this paper, we review the interventional treatments of HCC. DATA SOURCES: A literature search of PubMed database was conducted and research articles were reviewed. RESULTS: Percutaneous ethanol injection (PEI) is usually applied to small HCC for a complete necrosis. Radiofrequency ablation, an alternative to PEI, also causes tumor necrosis and needs fewer times of ablation. Other methods such as acetic acid injection, laser, microwave, etc have enriched local ablation for HCC. High intensity focus ultrasound (HIFU) is thought to be promising. TACE, another common modality, can improve the survival rate of patients with HCC. The newly developed embolic agents and adjuvant rAd-p53 gene therapy are well reported. CONCLUSIONS: Surgically-noneligible HCC can be treated with interventional procedures. Each method has its advantages and disadvantages. However, it is still pressing to develop ablative methods as well as new embolic agents for a better prognosis of HCC.

Interventional radiology therapies for liver cancer

Hepatocellular carcinoma(HCC)is the fifth most frequently found primary malignant tumor in the world.Hepatic surgery and liver transplantation are considered optimal for the curative treatment of HCC.However,only 15-20%of HCCs may be surgically treated.Most of the surgically-non-eligible patients have to receive locoregional image-guided interventional treatments including intra-arterial and percutaneous ablative therapies.The goal of this paper is to review these interventional oncology approaches.Ablative therapeutic approaches include chemical therapies(such as ethanol or acetic acid injection),and thermal therapies(such as radiofrequency ablation,laser-induced thermotherapy,microwave ablation,cryoablation,and high-intensity focused ultrasound ablation).Catheter-based therapies include embolotherapy/chemotherapy-based treatments(such as transcatheter arterial chemoembolization,bland embolization,transcatheter arterial chemoinfusion,and chemoembolization with drug-eluting beads),and radiotherapy-based treatments(such as radioembolization with yttrium-90 and injection of iodine-131-labeled lipiodol).As a result of the technical development of locoregional approaches for HCC during the recent decades,the range of combined interventional therapies has been continuously extended.In this article,an evidence-based approach will be used to review the current role of interventional radiology therapies in the management of unresectable HCC.