My husband is 6 years postop esophagectomy. Last September he also had open heart surgery. Recovered from both surgeries, but has been coughing more with increased mucous production since then. He has had a bronchoscopy, endoscopy, swallowing studies, CT and Pet Scans. They didnt find anything. They say it is Gerd and put him on a ton of medications. No real help. Now we are starting all over again with new doctors. Still he coughs too much. It wakes him up in the middle of the night even propped up. I will let you know what we find. Good luck.