Angioplasty can be harmful to the body, so it needs to be performed after careful consideration. Angioplasty may cause damage to the blood vessels at the puncture site, inducing local bleeding, hematoma, or even infection. In addition, contrast agents are required for the imaging, which may cause damage to the kidneys, induce renal insufficiency, and cause contrast nephropathy. In addition, accidents may occur during the procedure, with rupture of blood vessels during puncture, resulting in cardiac compression or malignant cardiac arrhythmia and acute heart failure. In severe cases, sudden death may occur intraoperatively and endanger life.