Coronary Angiogram is an invasive diagnostic procedure to examine the coronary arteries. During the procedure, a small catheter is introduced to the root of the aorta (great artery). Contrast agent is injected directly into the coronary arteries. Pictures are taken during the contrast injection. The procedure is to diagnose coronary arteries blockage and its severity. It also provides information of how severe the blockage is.
The Cardiac Catheterization Laboratory has equipped with X-ray machine and catheterization instruments. Before the operation, doctor will use sedation to calm you down. Electrocardiogram monitor patches will be placed on your chest for continuous monitoring of your heart condition throughout the procedure. The Nursing staff will prepare the puncture site and cover you with a sterile drape. The doctor will anaesthetize the groin or the wrist (the right side is preferable) and insert the catheters. Contrast agent is injected directly into the coronary arteries. During the procedure, you may experience chest discomfort or heat flush for a few seconds. These are normal reactions. If you don’t need angioplasty, the sheath will be removed & pressure dressing will be applied. In some cases, the doctor will remove the catheter and the arterial wound will be closed with special closing device, then you can ambulate gradually.