While the basic principles of angioplasty are the same for different vessels in the body (pulmonary artery, systemic vein, systemic artery, etc.) the procedures do have important differences with regard to the technique and choice of balloons. The goal of angioplasty is to create a controlled tear in a vessel wall so that the vessel can heal in the newly created diameter following relief of the stenosis. The ability of a balloon to tear a vessel is determined by the properties of both the vessel being dilated and the balloon being used. Therefore, the balloon chosen will depend on the site requiring dilation and individual balloon characteristics (see the Appendix). The most common sites requiring balloon angioplasty in congenital cardiac catheterization are the pulmonary arteries. Thus this section will focus on details pertinent to pulmonary angioplasty, but the concepts can be applied to other obstructed vessels.
KeywordsPulmonary Artery Balloon Catheter Peripheral Pulmonary Artery Wire Position Peripheral Pulmonary Artery Stenosis