I had Bilateral Lung Volume Reduction. Only problem was lungs were so over-inflated that surgeon had to remove little pieces of lungs stuck to chest wall, piece by piece. This was endoscopic surgery and it turned a 2 hour procedure into a 4 hour one. He told my family that had he realized they were in such a way, he would not have done the procedure at all. I attribute the over-inflation from the fact that I continued to work too long, in a very physical job. Good luck to you if you have LVR.