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Dr. Pradip Jamnadas, MD - What is a Cardiac Catheterization (Coronary Angiogram) and How is it Performed?

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Author: Dr. Pradip Jamnadas, MD
Categories: Health
Tags: health
Views: 2 · Last viewed: 2026-10-16 20:50 UTC

Short Summary

Main recommendation: A cardiac catheterization (coronary angiogram) is a diagnostic test in which dye, or contrast, is injected into the coronary arteries via X-ray imaging to check for blockages that may be causing angina, a positive stress test, or congestive heart failure. Dr. Jamnadas says it should only be done when blockages are strongly suspected, and most patients need only medical management, with stents or bypass surgery reserved for specific cases.

Key Points

  • The test is performed in the office's cardiac catheterization lab, and Dr. Jamnadas describes it as a very safe procedure, with the overall risk of death, heart attack, or stroke about 1 in 10,000, according to him.
  • A fine tube is threaded under X-ray guidance from the arm, which lets patients walk and use the bathroom soon after, without long bed rest.
  • The procedure takes about 10 minutes, followed by 30 to 45 minutes of recovery and discharge home about an hour after the test.
  • Results determine treatment: most patients need only medical management, some with tight blockages need angioplasty/stent, and very rarely bypass surgery is discussed.
  • Patients receive sedation that makes them sleepy but not unconscious, and the speaker stresses this is not general anesthesia.

Details Worth Noting

Concrete instructions:

  • Before the procedure, patients have blood tests (kidney function and blood count) a day or a couple of days ahead, and the procedure is reviewed with them.

  • Do not eat or drink anything after midnight the night before.

  • Continue regularly needed medications, such as blood pressure medicines, with a sip of water on the morning of the test.

  • Bring someone with you, because sedation means you cannot drive yourself home.

  • If you have a contrast allergy, the doctor gives tablets before the procedure to prevent a reaction.

  • Expect a gown, an IV with fluid hydration in the recovery area, and that the arm is used for access; the arm can be used again within about an hour.

  • Contact the staff or visit the office with any questions.

  • Risks discussed include contrast allergy (very rare) and death, heart attack, or stroke at roughly 1 in 10,000 overall.

  • A hot flush from the dye may be felt, but the inside of the arteries has no sensation.

  • Catheters used include a pigtail catheter placed in the heart's pumping chamber to assess pump strength, plus a catheter for injecting dye into the arteries.

Bottom Line

A coronary angiogram is a short, low-risk way to see whether arteries are blocked, and the speaker presents it as a test to be used only when blockages are strongly suspected, with treatment decided afterward.