Capecitabine maintenance after radiofrequency ablation: A preventive strategy for lung oligometastases from colorectal cancer.

Preventing the recurrence of lung oligometastases after local therapy in patients with colorectal cancer is an area requiring investigation. A recent article demonstrated that adding capecitabine maintenance therapy after radiofrequency ablation improved the 5-year overall survival (88.7% vs 69.1%) and reduced local tumor progression (22.7% vs 49.0%) compared with radiofrequency ablation alone. Although progression-free survival did not differ significantly between the two treatments, multivariate analysis confirmed a robust survival benefit. These findings support the use of systemic maintenance to eradicate micrometastases after locoregional control and warrant validation in prospective randomized trials.