Preoperative Prognostic Factors for 5-Year Survival Following Pulmonary Metastasectomy from Colorectal Cancer: A Systematic Review and Meta-Analysis

A systematic review of prognostic factors for five-year survival after pulmonary metastasectomy (PM) from colorectal cancer (CRC) identified 11 of 77 preoperative factors as having statistically significant positive effects. These included a solitary metastasis < 2 cm. The disease free interval at twenty-four months did not affect five-year survival. These findings consolidate the evidence and support clinical practice and future research design.