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demonstrably    音标拼音: [dɪm'ɑnstrəbli]
ad. 可论证地,明确地,凭论证

可论证地,明确地,凭论证



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  • Problem: Heart Valve Regurgitation - American Heart Association
    Read more about regurgitation and specific valves: Mitral regurgitation is leakage of blood backward through the mitral valve each time the left ventricle contracts Aortic valve regurgitation may stem from a congenital heart defect, complications of an infection or other more rare causes
  • Problem: Mitral Valve Regurgitation - American Heart Association
    Mitral regurgitation is leakage of blood backward through the mitral valve each time the left ventricle contracts Learn about ongoing care of this condition
  • Problem: Aortic Valve Regurgitation - American Heart Association
    What causes aortic regurgitation? Common causes of severe aortic regurgitation are bicuspid valve disease, congenital abnormalities, primary diseases in the ascending aorta or dilated aortic sinuses Acute aortic regurgitation can be caused from bacterial infections of the heart tissue, after chest trauma or from calcific valve disease
  • Problem: Tricuspid Valve Regurgitation - American Heart Association
    Tricuspid regurgitation is leakage of blood backwards through the tricuspid valve each time the right ventricle contracts Learn about ongoing care of this condition
  • Heart Valve Problems and Causes - American Heart Association
    Regurgitation: the valve does not close completely allowing blood to flow backward into the chamber Atresia: valve is completely closed Causes of valve problems The causes of valve problems can often be linked to birth defects, related to age or caused by another condition View our heart valve animations library
  • Heart Valve Disease - American Heart Association
    The American Heart Association explains how your heart valves work and any problems or disease your valves can acquire, including regurgitation, stenosis and prolapse
  • Medications for Heart Valve Symptoms
    When should heart valve repair or replacement be considered over medications? If your valve disease progresses, surgical treatment may be necessary Your health care team can help you understand and evaluate options for heart valve repair or valve replacement surgery
  • Testing for Heart Valve Problems - American Heart Association
    To fully understand your heart valve problem, your medical team may want to perform a series of tests to provide a complete picture of what needs repair and what may be best left alone Learn about the various tests you may undergo
  • Symptoms of Heart Valve Disease - American Heart Association
    How can I tell if I have symptoms of valve disease? Some physical signs of heart valve disease include: Chest pain or palpitations (rapid rhythms or skips) Shortness of breath, fatigue, weakness or inability to maintain regular activity level Lightheadedness or fainting Swollen ankles, feet or abdomen Some people don’t have symptoms but still need treatment Others may notice symptoms that





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