Andrew still needs help to get him healthy

My son Andrew was born with NO cartiledge in a 9mm portion of his airway to the left lung - that has caused my son severe breathing problems.  Andrew is 6yrs old and on 8/7/12  underwent major OPEN HEART CHEST RECONSTRUCTION surgery in Cincinatti. Although Andrew did AMAZING post-op, he is now having complications with keeping the airway open.  We spent a month in Cinn, and Andrew required a titanium stent to be placed to keep the airway from collapsing.  We need to return in 3wks to have the stent removed & then relooked out to see if he requires another stent,  and then again for follow-up visits, and the insurance company will not pay for our travel and lodging.  We do not have the money and Andrew needs this follow-up work, because his airway can COLLAPSE and he will no longer be able to breathe.    Whatever you can donate will be greatly appreciated.