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During a cardiac catheterization, doctors use a thin, flexible tube—called a catheter—to reach the left or right side of the heart. Blood samples are collected and pressure, blood flow and oxygen levels are all measured inside your heart’s chambers. The catheter can also be used to inject dye into your coronary arteries and aorta to provide valuable information regarding heart artery blockages.
Physicians prescribe this procedure to diagnose and possibly treat heart conditions. The procedure can be performed on an outpatient basis or even performed during emergency situations, such as after a heart attack.
A cardiac catheterization (also called a cardiac cath or cath) requires the placement of a catheter into an artery or vein in your arm, leg, groin or neck. Physicians guide the catheter to the heart using a specialized camera called a fluoroscopy. In addition to studying the blood flow of your heart, two other procedures are often performed during a cardiac catheterization:
The Ohio State University Wexner Medical Center exceeds national standards regarding the “door to balloon time” for acute cardiac events. Our team of interventional cardiologists are dedicated not only to patient care, but are also on the leading edge of both clinical and basic science research.
Ohio State’s Ross Heart Hospital performs more than 5,000 procedures a year, making it one of the highest volume centers in the area. Because we've done so many procedures, our staff is better equipped and more experienced in handling even the most difficult cases.
But we’re putting our cath lab to good use, using it for more than just normal heart catheterizations. We’re developing monitoring methods and treatments for heart failure that can be performed in the cath lab, we’re researching stem cell treatments for heart attack, and Ross Heart Hospital’s interventional cardiology program (including our cath lab) experienced a 20-percent increase in procedures between 2006 and 2009 – all of this despite a national downturn in caths and angioplasties.
Preparing for your procedure
Your physician will provide fasting instructions before your cardiac catheterization procedure. Tell your technician about all the medicines you take, as well as any allergic reactions you’ve had to medication. Your cardiac catheterization test is performed in a hospital setting in a cath lab. It is possible that you might stay overnight before or after your procedure, but in general, a cardiac catheterization is done on an outpatient basis.
During your procedure
During a cardiac cath, you will lie on a table and be given a sedative to help you relax during the procedure. In addition, you will be given a local anesthetic at the site of the catheterization. You may feel some pressure but should not feel any pain during the procedure.
During the test, a large camera head will move around your chest, taking pictures of your heart arteries from different directions. In addition to a cardiologist, other technicians and nurses help administer this test. The length of time a cardiac cath takes depends on a variety of factors, including whether additional procedures are done:
After your procedure
Depending on a variety of factors, your physician might admit you to the hospital after your cardiac catheterization procedure, although some patients go home the same day. In addition, depending on your personal situation, your doctor may prescribe blood thinners for you after the procedure.
Upon discharge from the hospital, you will be given a complete set of instructions regarding the site of your catheterization. Depending on the results of your tests, your physician may recommend lifestyle changes to prevent any heart conditions from getting worse.
Heart catheterization is used to diagnose and treat blockage associated with cardiovascular disease. As Cindy Baker, MD, FACC, an interventional cardiologist at Ohio State, explains, an abnormal stress test or other test may prompt suspicion that the heart isn’t getting enough blood. The catheterization procedure can confirm this.
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