About Coronary Angiography
Coronary angiography is the most accurate test to see the blood vessels that supply the heart muscle. A thin, flexible tube (catheter) is passed through an artery in the wrist or groin up to the heart, a contrast dye is injected, and live X-ray images show exactly where an artery is narrowed or blocked.
At AKG Hospital the procedure is performed in our Cath Lab by experienced interventional cardiologists. The results help your cardiologist decide whether medicines alone are enough, or whether you need angioplasty with stenting or bypass surgery.
Also known as: Cardiac catheterisation, CAG, heart angiogram
Who is it recommended for?
Your doctor may recommend this if you have:
- Chest pain or discomfort (angina) on exertion or at rest
- Abnormal ECG, TMT (treadmill test) or echocardiogram findings
- After a heart attack, to plan further treatment
- Unexplained breathlessness or heart failure
- Before major heart valve surgery
- Assessment of previous stents or bypass grafts
How is it done at AKG Hospital?
- Assessment Your cardiologist reviews symptoms, ECG, echo and blood tests, including kidney function, before the procedure.
- Local anaesthesia The wrist (radial) or groin (femoral) area is numbed. You stay awake and comfortable throughout.
- Catheter placement A thin catheter is guided through the artery to the openings of the coronary arteries under X-ray guidance.
- Dye injection & imaging Contrast dye is injected and X-ray pictures of the arteries are recorded from several angles.
- Results discussion The catheter is removed, a pressure band or dressing is applied, and your cardiologist explains the findings and next steps.
How to prepare
- Do not eat or drink for about 4–6 hours before, unless advised otherwise
- Inform the doctor about allergies, especially to contrast dye or iodine
- Bring all current medicines; blood thinners and diabetes medicines may need adjustment
- Carry previous ECGs, echo reports and test results
- Arrange for a family member to accompany you
Recovery & aftercare
Most patients rest for a few hours after the test while the puncture site is observed. With the wrist route, you can usually sit up and walk soon after. Avoid lifting heavy weights with that arm or leg for a few days and drink plenty of fluids to help the kidneys clear the dye.
Benefits
- Gold-standard test for coronary artery disease
- Quick procedure under local anaesthesia
- Can proceed to angioplasty in the same sitting when needed
- Clear roadmap for treatment decisions
Risks & when to seek help
Coronary angiography is a safe and commonly performed test. Possible side effects include bruising or bleeding at the puncture site, allergic reaction to the dye and, rarely, effects on kidney function or heart rhythm. Contact the hospital if you notice swelling, bleeding, numbness or coldness of the hand or leg.
Frequently asked questions
Is coronary angiography painful?
No. Only the puncture site is numbed with local anaesthesia. You may feel a brief warm sensation when the dye is injected.
How long does coronary angiography take?
The procedure itself usually takes 20–45 minutes, though you will spend a few hours in hospital for preparation and observation.
Can angioplasty be done at the same time?
Yes. If a significant blockage is found, and you have consented in advance, the cardiologist may proceed to angioplasty in the same sitting.
When will I get the report?
Your cardiologist will usually discuss the findings with you and your family on the same day.
This page gives general information to help you understand Coronary Angiography. It does not replace a consultation — your doctor will advise what is right for you.
