Coronary Artery Disease (CAD) is a very common disease, increasing in incidence with modern lifestyle.
This disease is responsible for hospitalization, high expenditure in many patients and can even lead to death in case of some patients. Recently, with change in lifestyle, it is increasing even among the young individuals.
CAD is caused due to blockade of blood vessel supplying the heart. The blockade occurs due to deposition of fat in the walls of the blood vessels, leading to non- functioning of the heart muscle, thus reducing heart function.
Multiple tests like ECG, 2D Echo, TMT, Invasive Coronary Angiography, Non- Invasive Coronary Angiography, Myocardial perfusion and viability imaging are done for CAD diagnosis and treatment monitoring.
Invasive Coronary Angiography
This procedure is done by injecting the dye in heart blood vessel directly and looking for any blockages.
It is done by inserting a catheter (wire like structure through hip/ wrist blood vessel) and after getting to the heart, and injecting dye. Then, imaging is done by X-Ray machine.
Complications like heart attack, stroke, injury to catharized artery, irregular heart beat (arrhythmia), allergy to dye, kidney damage, excessive bleeding, infection, etc. can occur during or after the procedure.
Non- Invasive Coronary Angiography
It is done by injecting dye in hand and imaging heart blood vessels simultaneously by an advanced CT scan machine. Thus, it has fewer side-effects.
It is a test of exclusion to rule out CAD. Hence, it is useful in early detection and screening of the disease, rather than undergoing an invasive test.