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  2. Transcatheter aortic valve replacement - Wikipedia

    en.wikipedia.org/wiki/Transcatheter_aortic_valve...

    Transcatheter aortic valve replacement (TAVR) is the implantation of the aortic valve of the heart through the blood vessels without actual removal of the native valve (as opposed to the aortic valve replacement by open heart surgery, surgical aortic valve replacement, AVR).

  3. Aortic valve replacement - Wikipedia

    en.wikipedia.org/wiki/Aortic_valve_replacement

    Aortic valve replacement is a cardiac surgery procedure whereby a failing aortic valve is replaced with an artificial heart valve.The aortic valve may need to be replaced because of aortic regurgitation (back flow), or if the valve is narrowed by stenosis.

  4. Aortic valve area calculation - Wikipedia

    en.wikipedia.org/wiki/Aortic_valve_area_calculation

    Because of this, the valve area may be erroneously calculated as stenotic if the flow across the valve is low (i.e. if the cardiac output is low). The measurement of the true gradient is accomplished by temporarily increasing the cardiac output by the infusion of positive inotropic agents, such as dobutamine.

  5. Cardiology diagnostic tests and procedures - Wikipedia

    en.wikipedia.org/wiki/Cardiology_diagnostic...

    Cardiac stress testing is used to determine to assess cardiac function and to disclose evidence of exertion-related cardiac hypoxia. Radionuclide testing using thallium or technetium can be used to demonstrate areas of perfusion abnormalities. With a maximal stress test the level of exercise is increased until the person's heart rate will not ...

  6. Joseph Bavaria - Wikipedia

    en.wikipedia.org/wiki/Joseph_Bavaria

    Joseph E. Bavaria, M.D., FACS, FRCS (Edin) ad hom, (born 1957) is an American cardiothoracic surgeon [6] a professor of surgery at the University of Pennsylvania and Director of its Thoracic Aortic Surgery Program.

  7. Coronary artery bypass surgery - Wikipedia

    en.wikipedia.org/wiki/Coronary_artery_bypass_surgery

    CABG is also performed when a patient is to undergo another cardiac surgical procedure, most commonly for valve disease, and angiography reveals a significant lesion of the coronary arteries. [9] CABG can also address dissection of coronary arteries, where a rupture of the coronary layers creates a pseudo- lumen (cavity) and diminishes blood ...

  8. Radionuclide angiography - Wikipedia

    en.wikipedia.org/wiki/Radionuclide_angiography

    As the gamma camera images are acquired, the patient's heart beat is used to 'gate' the acquisition. The final result is a series of images of the heart (usually sixteen), one at each stage of the cardiac cycle. [citation needed] Depending on the objectives of the test, the doctor may decide to perform either a resting or a stress MUGA.

  9. Cardiac imaging - Wikipedia

    en.wikipedia.org/wiki/Cardiac_imaging

    Apical four chamber ultrasound view of heart. Transthoracic echocardiography (TTE) uses ultrasonic waves for continuous heart chamber and blood movement visualization. It is the most commonly used imaging tool for diagnosing heart problems, as it allows non-invasive visualization of the heart and the blood flow through the heart, using a technique known as Doppler.