#Industry News
About coronary angiography
Model:Coronary
Coronary angiography is a common and effective method for diagnosing coronary atherosclerotic heart disease (CHD). It is a relatively safe and reliable invasive diagnostic technique. It is now widely used in clinical practice and is considered the "gold standard" for diagnosing CHD.
Indications for coronary angiography include:
1. Unexplained chest pain or arrhythmia, which requires coronary angiography to exclude CHD.
2. Unexplained left ventricular dysfunction, mainly seen in dilated cardiomyopathy or ischemic cardiomyopathy, the differentiation of which often requires coronary angiography.
3. Recurrent angina after percutaneous coronary intervention (PCI) or coronary artery bypass grafting.
4. If the clinical diagnosis of CHD is clear, coronary angiography can further clarify the scope and degree of coronary artery lesions and select treatment options.
Contraindications for coronary angiography include:
1.Allergy to iodine or contrast agents
2.Severe cardiopulmonary insufficiency who cannot tolerate surgery
3.Uncontrolled severe arrhythmias such as ventricular arrhythmias
4.Electrolyte disorders
5.Severe liver and kidney insufficiency
During the operation, the femoral artery and radial artery are usually punctured percutaneously. The catheter is sent to the selected angiography site. When the catheter is in the blood vessels and heart chambers, heparin saline (500ml contains 40mg of heparin) should be flushed and dripped into the cardiac catheter to prevent catheter clotting. If left heart system angiography is performed, 0.5mg/kg of heparin should be pushed into the catheter when the catheter is placed in the arterial system for anticoagulation to prevent thrombosis and embolism. After the angiography is completed, remove the cardiac catheter and press on the puncture site to stop bleeding until there is no more bleeding. Apply pressure bandage to avoid the formation of hematoma.