They discovered a large aneurysm of the proximal descending aorta at the site of the Dacron Patch Graft repair done 14 years earlier.
Avoid Dacron, polyester and rayon which can be uncomfortable.
The most common surgical treatment involves replacing the child's aortic valve and several inches of the aorta itself with a composite graft, which is a prosthetic heart valve sewn into one end of a Dacron tube.
The secondary closure may involve sewing a synthetic patch made of Dacron material over the opening, or wrapping the patient's own tissue (often from the fluid-filled sac around the heart called the pericardium) to close the opening.
The word usage examples above have been gathered from various sources to reflect current and historial usage. They do not represent the opinions of YourDictionary.com.