Lung stereotactic body radiation therapy (SBRT) delivered over 4 or 11Â days: A comparison of acute toxicity and quality of life

Grade 2 or higher acute toxicity was more common in the 4 day group, approaching statistical significance. More patients treated on 4 consecutive days reported a clinically meaningful increase in dyspnea, although interpretation of these results is challenging due to baseline imbalance between treatment groups. Larger studies are required to validate these results.