Abstract
Patients with unresectable colorectal liver metastases are commonly treated with systemic chemotherapy to convert their disease to an operable state. Unfortunately, many patients remain unresectable after first-line chemotherapy and resort to second- and third-line regimens with poor results. Liver-directed strategies have historically been used in this setting. There has been a renewed interest in offering hepatic artery infusion chemotherapy combined with systemic chemotherapy to improve resectability or palliate disease. Prospective studies over the past 2 decades have produced encouraging data, even in chemorefractory patients. This therapy has expanded to multiple centers across North America and worldwide with similar results. This review addresses these data, specifically focusing on conversion to resection and palliation of colorectal liver metastases after patients have received multiple lines of systemic chemotherapy.
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