I’m facing spine surgery next week. After a severe fall, I’ve fractured my T9 vertebrae. I’m also a COPD stage 4 patient. Obviously a major concern is the condition of my lungs and whether Or not I can be removed from the respirator after the surgery that is expected to last 2 to 3 hours. I know we are all different and have varying strengths, but I’m interested whether others have had similar experiences and any comments or general thoughts about ventilators and COP