A direct look at the heart
Cardiac catheterization uses a thin tube advanced through a blood vessel to study coronary arteries, heart chambers and valves. It may help explain symptoms, confirm a diagnosis or prepare a treatment.
Not every catheterization leads to angioplasty. The study may be diagnostic only; any additional treatment depends on the findings and the clinical plan.
Before you arrive
The center will tell you whether you need tests, temporary medication changes or fasting. Never make these changes on your own.
- Bring a list of your medicines and doses.
- Report allergies, especially to iodinated contrast.
- Report kidney disease, previous bleeding or possible pregnancy.
- Ask whether someone should accompany you home.
During and after
The access site is usually the wrist or groin. Local anesthesia and, when appropriate, sedation are used while the team monitors blood pressure, heart rhythm and oxygen.
Afterward, the access site is observed and you receive instructions about activity, medicines and warning signs.