Coronary angiography

Coronary angiography is an auxiliary test used to check the normality of an artery. Coronary angiography is an effective method for diagnosing coronary heart disease. The catheter is inserted through the thigh femoral artery or other peripheral arteries, sent to the ascending aorta, and then the left or right coronary artery is inserted into the mouth, and a contrast agent is injected to visualize the coronary artery. It can clearly reveal the location, extent and extent of anatomical malformations of coronary arteries and their obstructive lesions. Coronary angiography is the only method that can directly observe the morphology of coronary arteries. The medical community claims to be the "gold standard." The corresponding symptoms can be judged by the above instrument examination. Basic Information Specialist Category: Cardiovascular Examination Category: CT Applicable gender: whether men and women apply fasting: not fasting Tips: normal rest and diet. Normal value The anatomy of the coronary artery was free of deformities and non-obstructive lesions. Clinical significance Abnormal results for the symptoms of atypical angina, clinically difficult to diagnose, especially in patients with poor treatment, as well as elderly patients with enlarged heart, severe arrhythmia, heart failure, abnormal ECG, suspected coronary artery disease or deformity, but non-invasive examination Results can not be diagnosed, coronary angiography can provide a strong diagnostic basis. The population in need of examination has patients with cardiovascular disease. Precautions Taboo before inspection: 1. Allergic to iodine. 2. Combined severe cardiopulmonary insufficiency. 3. Combined with severe arrhythmia and complete atrioventricular block. 4. Electrolyte disorders. 5. Severe liver and kidney dysfunction. This check cannot be used in the above cases. Requirements for inspection: 1. Establish an intravenous infusion channel and draw the spare drug into the empty needle, such as atropine 1mg, lidocaine 400mg, isoproterenol 0.5mg. 2. Immediately after successful femoral artery puncture, 50 mg of heparin was injected intravenously to prevent thrombotic complications. 3. The pressure transducer, tee joint and heart catheter should be connected into a complete closed system, pay attention to the exhaust, and always pay attention, do not mix air bubbles. 4. The electrode plate of the electric shock defibrillator is coated with a conductive paste for application. 5. Continuous ECG monitoring during the inspection process, reminding the operator if necessary, including: 1QRS amplitude. 2ST segment and T wave. 3 heart rhythm, if there is bradycardia or sinus arrest, immediately intravenous injection of atropine sulfate 0.5 ~ 1mg; if there is room early, ventricular tachycardia, immediately intravenous injection of 2% lidocaine 50 ~ 100mg, immediately ventricular fibrillation Defibrillation. 6. Closely monitor the pressure, the pressure drops above 2.67 kPa (20mmHg), and immediately withdraw the catheter when the top of the catheter is blocked by the top of the catheter. 7. If the condition is severe or the original bradycardia is slow, a temporary pacemaker can be placed before the angiography. 8. During the operation of the patient with angina pectoris, the nitroglycerin should be given 0.6mg or the diluted nitroglycerin 200ug should be injected from the catheter. If necessary, repeat the application and inhale oxygen. Inspection process Specifically, the coronary artery is developed by injecting a catheter into the coronary artery at the thigh femoral artery or other arteries and injecting a contrast agent. In this way, the entire branch of the coronary artery tree can be examined, and the location, extent and extent of the coronary artery obstructive lesion are more clearly revealed. The results can be used as a scientific basis for the choice of interventional therapy or coronary artery bypass surgery. Not suitable for the crowd Inappropriate people: Due to the high price of the examination, it is not included in the routine medical examination.