I am a 78 year old female and I have had Barretts Oesophagus since 1996. Consequently, I have to have regular endoscopies to check on the Barretts. Since August 2012 I have suffered severe breathing/lung problems (oxygen transfer problem , plus mild grade 1 emphysema. In December 2012, I was diagnosed with AF. Subsequent tests have also shown that I have three valves (aorta, mitral & tricuspid) which are regurgitating, both atria and the right ventricle are dilated. I also have a sclerotic aortic valve, mild pulmonary hypertension and generalised coronary artery atheroma, but no high grade luminal narrowing was detected. Cardiologist now wants me to have a Transoesophageal Echocardiogram (TOE) & Cardioversion. The doctor did not explain anything about the procedure except to say it was an "electric shock" like you see on T.V. Until I read the paperwork much later, I had no idea that the TOE part of the procedure involved the insertion of an ultrasound probe into my oesophagus, and I am extremely concerned about the possible detrimental effect this may have on my already ailing oesophagus which has an extensive and long segment of Barrett's disease(C7 M8). Unfortunately, my Gastroenterologist is away overseas at present so I cannot get his advice. The Cardiologist is at a large metropolitan public hospital and it is impossible to contact him by phone directly,.