Thoracic Surgery can be complex and is generally only undertaken by surgeons with intensive training. Our surgeons work closely with a team of experienced veterinary technicians to provide the best care when thoracic surgery is needed. We are equipped to routinely ventilate dogs and cats that are undergoing chest surgery. Lung tumors can be removed and a cure or long term control is possible. We also perform selected cardiac procedures, such as ligation of Patent Ductus Arteriosus (PDA). PDA is a congenital heart defect with an open vessel (the ductus arteriosus) between the two main arteries of the heart (aorta and pulmonary artery). In some instances surgery is the only option for a cure. Chylothorax is a rare condition in dogs and cats and is an area of interest for Dr. Hay. Chylothorax is an accumulation of the lymphatic fluid within the chest cavity. The fluid should normally flow from the abdomen and head/neck and drain into the heart. Chylothorax is treated by re-routing the lymphatics in the chest/abdomen. As is the case with liver shunts, Dr. Hay has found that pet owners of dogs and cats with Chylothorax are often very distressed by the time the decision is made to perform surgery. Though it is a technically challenging procedure, the veterinary literature reports a 50% success rate in cats and 70-80% in dogs. Dr. Hay has focused on refining the surgery to treat Chylothorax to optimize success and is here for you as you make this decision regarding surgery for your pet.