期刊
ANNALS OF SURGICAL ONCOLOGY
卷 25, 期 6, 页码 1676-1685出版社
SPRINGER
DOI: 10.1245/s10434-018-6387-8
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Not all patients with resectable colorectal liver metastases (CLM) benefit from liver resection (LR); only patients with disease progression during chemotherapy are excluded from surgery. This study was performed to determine whether tumor behavior (stable disease/progression) from the end of chemotherapy to LR impacts prognosis. Patients undergoing LR after tumor response or stabilization during chemotherapy were considered. Overall, 128 patients who underwent examination by two imaging modalities (computed tomography/magnetic resonance imaging) after chemotherapy with a > 3-week interval between the two imaging modalities were analyzed. Any variation in CLM size was registered. Tumor progression was defined according to the response evaluation criteria in solid tumors (RECIST) criteria. Among 128 patients with stable disease or partial response to preoperative chemotherapy, 32 (25%) developed disease progression in the chemotherapy to LR interval, with a disease progression rate of 17% when this interval was < 8 weeks. Survival was lower among patients with progression than those with stable disease [3-year overall survival (OS) 23.0 vs. 52.4%, and recurrence-free survival (RFS) 6.3% vs. 21.6%; p < 0.001]. Survival was extremely poor in patients with early progression (< 8 weeks) (0.0% 2-year OS, 12.5% 6-month RFS). Disease progression in the chemotherapy to LR interval was an independent negative prognostic factor for OS and RFS [hazard ratio 3.144 and 2.350, respectively; p < 0.001]. Early disease progression in the chemotherapy to LR interval occurred in approximately 15% of patients and was associated with extremely poor survival. Even if these data require validation, the risk for early disease progression after chemotherapy should be considered, and, if progression is evident, the indication for surgery should be cautiously evaluated.
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