Post oesophagectomy aspiration

Hi folks, 

My husband is a year post op Oesophagectomy for adeno. Coughing since op and CT scan on Wednesday showed no reoccurrence yay- but he has aspiration. He has had one ballon dilation. Anyone out there know what the treatment for this is. They are planning a barium swallow to see what is going where, but anyone know where it goes from there.

cheers

Hilts