Subgroup Survival Analysis In Stage I-II NSCLC Patients With a Central Tumor Partly Treated With Risk-Adapted SBRT

We investigated survival in 765 early stage NSCLC patients treated with SBRT. We distinguished between GTVs in the first or second cm surrounding the proximal bronchial tree, and compared to peripheral tumors. Patients with a GTV within 1 cm died three times more often from other causes than cancer. Non-cancer death in patients with a GTV in the second cm, who partly received a risk-adapted schedule, was comparable to patients with a peripheral GTV.

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