Is Cardiac Catheterization Necessary in the Era of Echocardiography?

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Abstract
Definitive evaluation of cardiovascular disease is traditionally accomplished by cardiac catheterization. Advances in transthoracic and transesophageal Doppler echocardiography provides an accurate and cost-effective approach when compared to cardiac catheterization. Recent data suggests that for most adult patients with aortic or mitral valve disease, Doppler echocardiographic data enables the clinician to make the same decision reached with catheterization data. Echo and Doppler studies are useful in guiding certain therapeutic interventional procedures, and in the diagnosis of aortic dissection, mechanical complications of myocardial infarction, and in identifying aortic atheromas as a potential source of embolism. Future research will need to demonstrate that not only is echocardiography cost-effective, but that it will change the outcome of the patient.