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 DEFINITION
If the test of exercise and other tests are abnormal and suggest cardiovascular disease, it is possible that it is necessary to surrender to a cateterismo. The procedure is the following one:
A catheter is inserted (that is to say, a hollow and flexible tubito) in an artery of the groin or of the arm, and the catheter is interfering for the biggest artery of the body (the aorta) up to the heart. Once there, one leads the catheter up to a coronary artery. Then, an opaque substance is injected across the catheter to the x-rays, so that there becomes visible the interior of the heart and of the coronary arteries in a X-ray image.
The cardiac cateterismo serves also to study the valves of the left heart (mitral and aortic) and the form and function of the auricle and ventricle left. The study of the right heart valves tric&ua·de and pulmonary and auricle - ventricle rights is done by means of the insertion of a catheter in a big vein, which makes be advanced up to the right heart. This is a procedure much simpler than the arterial cateterismo.
- A catheter interferes for the artery femoral and across the aorta there gets in the coronary ones, there vehiculiza an opaque contrast and is seen an image Rx (Target and Black) directly, of the circulation of the blood in the coronary ones. Being able to appreciate the possible tightenings of the blood step or the finished occlusions.
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DEFINITION 
