<prompt> Lung volume reduction operations have been developed as a method of managing patients withAsbestosisEmphysemaBronchiectasisAmyloidosis  <response>: In a patient with diffuse severe emphysema, resection or pa of the damaged lung may allow the patients residual lung to function more efficiently. This technique may serve either as an alternative to lung transplantation or as a bridge until an appropriate donor organ is available. ref - Harrisons internal medicine 20e pg 1997 