My husband is 84 and has stage 4 congestive heart failure , diabetes , low functioning kidneys, COPD , a faulty valve, and has a pacemaker. Last December he was diagnosed with elephantitis and recently had 1600 units of water removed from the left side and 1500 units of water removed from the right side. He is scheduled to go in on Wednesday to have more water removed on the left side. What do you think is life expectancy is? Surgery is too risky due to his age and condition.