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Introduction to CTO lesions

Model:2D PCI Model

CTO lesions refer to chronic total occlusion of coronary arteries in medicine. This lesion is usually caused by atherosclerosis, which leads to gradual narrowing of the blood vessels and eventually complete occlusion of the entire blood vessel (100%). The occlusion time of the lesion is at least 3 months. CTO lesions are the most complex and difficult to treat in coronary heart disease, and there is a certain failure rate in interventional surgery. CTO lesions account for about 20-30% of all patients with coronary heart disease. In clinical practice, some patients often do not have particularly obvious and sudden chest pain, chest tightness and other symptoms, because the stenosis is gradually formed and collateral circulation is established, so the symptoms are usually not as severe as acute lesions. Some patients also have frequent angina pectoris and even heart failure symptoms due to long-term chronic ischemia.

What are the treatments for CTO?

1) Drug treatment: The effect on completely occluded blood vessels is very limited. However, although some drugs cannot directly open occluded blood vessels, they are beneficial to the growth of capillaries, the establishment of collateral circulation, and the blood supply of occluded blood vessels.

2) Interventional surgery: including percutaneous coronary balloon angioplasty (PTCA) and PCI. The balloon is delivered to the lesion through a catheter to dilate the local area, and a stent is placed if necessary to restore coronary artery circulation. There are two major methods: forward technology and reverse technology. The operation often requires puncturing two blood vessels.

3) Surgical bypass surgery: that is, coronary artery bypass grafting, which takes a section of blood vessels from other parts of the patient's body, crosses the lesion, connects the aorta and the distal coronary artery, and allows blood to bypass the stenosis or occlusion and reach the ischemic myocardium.

Details

  • Ningbo, Zhejiang, China
  • Trando 3D Medical Technology Co., Ltd