Chapter 5 Cardiovascular System Therapeutic Procedures PTCA Ligation and Stripping Extracorporeal Circulation
What are therapeuticprocedures? Procedures in which the patients experience relief from a symptom, a stop to the development of a disease, or some other short or long term assistance.
Extracorporeal Circulation What is it? ◦ Used to sustain the patient’s blood circulation and/or lung function outside the body during open-heart surgery. How is it done? ◦ Using a heart-lung machine. What does it do? ◦ Deoxygenated blood is taken out of the body and enhanced with oxygen by passing it through an artificial lung (oxygenator), before being pumped back into the patient’s circulation for up to six hours.
Ligation and Stripping What is it? ◦ a minor surgery, used to remove a varicose (damaged) vein and prevent complications of vein damage. How is it done? ◦ An incision is made below the vein, a flexible instrument is threaded up the vein to the first incision, and the vein is grasped and removed. The vein is tied off (ligation), and removed (stripping).
Percutaneous TransluminalCoronary Angioplasty (PTCA) What is it? ◦ The method for treating localized coronary artery narrowing. Why is it done? ◦ performed to open blocked coronary arteries caused by coronary artery disease (CAD) and to restore arterial blood flow to the heart tissue without open-heart surgery. How is it done? ◦ special catheter (long hollow tube) is inserted into the coronary artery to be treated and is inflated. The inflated balloon compresses fatty tissue in the artery and makes a larger opening inside the artery for improved blood flow.