Cardiac catheterization is a medical procedure that involves guiding a thin, flexible tube, called a catheter, through a blood vessel to the heart for diagnosing or treating certain heart disorders, like irregular heartbeats or clogged arteries.
Cardiac catheterization provides important information about the heart muscle, blood vessels in the heart, and heart valves. The doctor can perform different heart tests, do various heart treatments, or remove a small part of the heart tissue for examination.
Purpose: Cardiac catheterization has the following uses:
The following tests may be performed prior to cardiac catheterization:
The following procedures may be performed using cardiac catheterization:
1. Coronary angiogram: A dye may be injected into the catheter to check the blood flow in the heart and if there are any blockages in the arteries. The dye will enter the blood vessels and make the coronary arteries more apparent in the x-ray images. The catheter is usually placed in the artery in the wrist or groin area.
2. Cardiac ablation: Heat or cold energy is used for creating small scars in the heart to block the abnormal electrical signals of the heart and restore a normal heartbeat.
3. Heart biopsy: A sample of heart tissue is taken by the doctor using a catheter with a small, jaw-like tip and sent to the laboratory for evaluation. The catheter is usually placed in the vein in the neck, and sometimes in the groin area.
4. Balloon angioplasty: The catheter insertion is usually in the wrist or groin area for this procedure. The catheter is guided to the artery which is narrowed and a smaller balloon catheter is then inserted through the flexible catheter, and inflated at the area which is narrowed to open it. A mesh coil, known as a stent, is often placed at the narrowed part to keep the artery open.
5. Right heart catheterization: A catheter is inserted in the vein in the neck region or groin area. The catheter consists of special sensors that help in measuring the pressure and blood flow in the heart.
6. Congenital heart defects repair: Catheters can be inserted in the arteries and veins of the groin and neck region to close a hole in the heart, which is a congenital heart defect.
7. Balloon valvuloplasty: A catheter is threaded across a defective valve and a balloon is then inflated to allow the valve to open easily.
8. Heart valve replacement: A faulty heart valve can be replaced by an artificial valve using cardiac catheterization.
The procedure takes approximately 30 minutes to complete. However, the time taken may be more or less depending on the type of procedure being performed.
The risks associated with a cardiac catheterization procedure include:
M.D., D.N.B. (Med), D.M., D.N.B. (Card.), MNAMS, FIAMS Endovascular Fellow - Klinikum Oldenburg (Germany) - Cardiologist