75-year-old severe copd with pfts in 20-25% range, newly diagnosed lung ca. considering cyberknife. your thoughts about complications from scarring.

Rarely a problem: Cyberknife radiosurgery was specifically developed for patients with early stage lung cancers who cannot have a surgery due heart, lung, or other medical problems. It is very rare for scarring or pneumonitis to affect breathing in any noticible way after this treatment. The risk should be only a few percent (about 2-3%). I have treated many who are nearly oxygen dependent without making so.