Cardiac

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Cardiac Catheterization Paper 11/17/2011

1) Describe the procedure of cardiac catheterization:
Cardiac Catheterization (Cath) is a specialized study of the heart during which a catheter, or thin hollow flexible tube, is inserted into the artery of the groin or arm. Under x-ray visualization, the tip of the catheter is guided to the heart. Pressures are measured and an x-ray Angiogram (Angio) movie of the heart and blood vessels are obtained while injecting an iodinated colorless "dye" or contrast material through the catheter. Coronary angios are obtained by injecting the contrast material into the opening or mouth of a coronary artery. The iodinated solution blocks the passage of x-rays. X-ray movie pictures taken during the injection of the contrast material allow the coronary arteries to be visualized. In other words, coronary arteries are not visible on x-ray film. However, they can be made temporarily visible by filling the coronary artery with a contrast solution that blocks x-ray. (Heartsite)
2) Discuss the rationale for catheterization.
Cardiac catheterization allows the doctor to see the heart as it pumps blood. He is able to view the expansion and contraction of the chambers of the heart; the opening and closing of the heart valves; and the flow of blood through the coronary arteries. As compared to other diagnostic tests, cardiac catheterization provides more accurate and detailed information. This is especially important when visualization of the coronary arteries is required. This test provides the doctor with a picture of the arteries of the heart and allows him the assess the presence, location, and degree of severity of blockages in the coronary arteries. (Webmed)
3) Describe the risks of catheterization. Cardiac cath is generally safe. However, as with any invasive procedure, there…...

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