Acute neurological deficit in metastatic spinal cord compression is an emergency condition in radiation oncology. Despite some reports about the high efficacy of radiation treatment for oncological emergencies, a standard of care is not well defined, especially the time interval of immediate RT after deficit, and neurological outcome with respect to poor survival in non-small cell lung cancer patients. The objective of this trial is to investigate neurological outcome after emergency radiotherapy in metastatic spinal cord compression of non-small cell lung cancer patients with acute neurological deficit.