survival time after pleural effusion

Donnanva

Hi. Gary, hubby, was dx;d with stage 4 cancer in sept 2010. They did surgery to install a tube in his lung sac which comes outside of his body. I drain that for him every day. It usually produces between 400 to 500 mls. this has been going on for a month. Is it true that you usually only have 4-6 months at this point? Right now he gets very tired and has lost weight but really is doing pretty well. He gets very tired but still can walk around and go places. thank you.