Coronary angiography is a routine method for detecting coronary heart disease. Due to its high accuracy, it is considered the "gold standard" for coronary artery stenosis detection. In recent years, with the rapid development of cardiology interventional technology, coronary angiography has gradually become a "basic skill" that cardiologists in some county hospitals can also operate from the "high technology" that can only be implemented in some large hospitals.

Every patient with coronary artery disease should have a preoperative signature and experience with complications explained by the operating surgeon before undergoing angiography. In just a few minutes, the surgeon "told the whole story" in a full page.

1. Contrast agent allergy

Uses of coronary angiography

Synthetic iodinated contrast agent. Exogenous artificial ingredients will cause certain allergic reactions when entering the human body, and contrast agents are no exception. Just as some people are allergic to seafood, so are allergy symptoms to contrast media. Mild contrast allergy may be nothing more than red spots on the chest and back that resolve quickly with symptomatic and antiallergic treatment.

Second, contrast nephropathy

Contrast nephropathy occurs because when iodinated contrast agent passes through the human kidneys (often called urination), the kidneys of some heart disease patients cannot withstand this This metabolic burden ultimately leads to damage to kidney structure and function, and even kidney failure.

3. Various arrhythmias

Arrhythmia is one of the complications of coronary heart disease. However, coronary angiography may affect the blood supply to the heart cells responsible for heart rhythm, increasing the likelihood of arrhythmia. If benign premature contractions occur, there is no undue risk and no specific treatment is required. However, the extremely low probability of ventricular tachycardia or even ventricular fibrillation will directly threaten the patient's life safety. At this point, the surgeon will use electrical cardioversion and other methods to protect the patient from danger.