Summary
This phase III trial compares sublobar resection (surgery to remove a portion of a lobe) and stereotactic ablative radiotherapy to see how well they work in treating patients with stage I non-small cell lung cancer. Sublobar resection is a less invasive type of surgery for non-small cell lung cancer and may have fewer side effects and improve recovery. Stereotactic radiosurgery, also known as stereotactic ablation radiation therapy, is a specialized radiation therapy that delivers a single, high dose of radiation directly to the tumor and may kill more tumor cells and cause less damage to normal tissue. It is not yet known whether sublobar resection is more effective than stereotactic ablative radiotherapy in treating patients with non-small cell lung cancer.