FAQs about Angiography
Why are the reason for Angiography ?
The most common reason for having an angiography is to rule out whether the clinical symptoms presented are due to blockages in artery, example a blocked artery in heart may cause angina, in kidney may lead to high blood pressure , in brain may cause vison disturbance and weakness etc
How long does the procedure take?
Usually the procedure takes 30-45 min but if angioplasty is also performed then it may take 1-2 hrs depending on the blockage severity.
Is the procedure painful ?
No the procedure is not painful but you might feel slight warm sensation or mild nausea as contrast agent moves through blood vessels .
Why is contrast agent used in Angiography?
We cannot visualize blood vessels on X- ray, but by adding a contrast agent (dye) in the blood stream the vessel is visible and helps in diagnostic procedures .Contrast agent usually contain iodine.
Is Coronary Angiography a risky procedure ?
No, its generally considered to be safe .
Minor risks involved are :
- Bruising and bleeding where the catheter entered the artery
- Flushed feeling when the dye is injected
- Mild chest during procedure.
However some major risks are involved though the percentage is very minimal these are:
- Damage to the kidney following dye
- Severe allergic reaction to dye (Anaphylaxis)
- Damage to the blood vessel causing internal bleeding
- Heart attack or Stroke
What is non invasive or less invasive Angiography?
Non invasive Angiography is useful in cases where multiple follow up scans are required .In these no instruments are inserted into the body , only a contrast medium is injected into the vein of hand and scan taken and examined by Radiologist, eg :Magnetic Resonance Angiography(MRA), Computed Tomography Angiography(CTA)
What is added advantage of Catheter angiographic studies over less invasive CT or MRI angiography ?
Catheter angiography though minimally invasive but has the added advantage of combining diagnosis as well as treatment procedures like angioplasty , balloon or stent placement.
What is Coronary Angioplasty?
Coronary Angioplasty is a procedure done to widen the blocked coronary is artery, a balloon is used to stretch the blocked portion of the artery, a wire mesh tube called stent is permanently left into the artery to allow free blood flow within the artery.