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Related Concept Videos

Aortic Regurgitation I: Introduction01:15

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IntroductionAortic regurgitation is characterized by the backward flow of blood from the aorta into the left ventricle during diastole and arises from the improper closure of the aortic valve. This condition results in left ventricular volume overload and can stem from both acute and chronic etiologies, each contributing uniquely to the disease's progression and symptomatology.Acute and Chronic CausesAcute aortic regurgitation often results from events that suddenly impair the integrity of the...
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Mitral Stenosis I: Introduction01:22

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Mitral Valve Stenosis (MVS) is a heart condition where the mitral valve narrows, impeding blood circulation from the left atrium to the left ventricle. The etiology and pathophysiology of this condition are multifaceted, leading to a cascade of cardiovascular complications.Causes of Mitral Valve StenosisRheumatic Heart Disease: It is the main cause of mitral valve stenosis, particularly in developing nations. This condition arises from rheumatic fever, an inflammatory illness resulting from...
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Aortic Regurgitation II: Clinical Features and Diagnostic Tests01:22

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Aortic valve regurgitation (AR) occurs when the aortic valve fails to close properly, allowing blood to flow backward from the aorta into the left ventricle. This backflow can result in two distinct clinical presentations: acute and chronic AR, each characterized by its own set of symptoms and physical findings.Acute Aortic RegurgitationAcute AR presents with a sudden onset of severe symptoms. Patients typically experience profound dyspnea (shortness of breath), chest pain, and signs of left...
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Pulmonary Hypertension: Classification and Pathogenesis01:30

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Pulmonary hypertension (PH) is a severe health condition in which the mean pulmonary arterial pressure increases to 25 mmHg or more, even when the body is at rest. This high pressure in the blood vessels that transport blood from the heart to the lungs can cause various symptoms, including shortness of breath, can lead to right heart failure, and significantly affect the overall quality of life.
There are various classifications for PH, each relating to different underlying causes and also...
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Aortic Regurgitation III: Medical Management01:25

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Aortic regurgitation (AR) is when the aortic valve does not close or seal properly, leading to backward blood circulation from the aorta into the left ventricle during diastole. Common causes of AR include rheumatic heart disease, congenital valve defects, and aortic root dilation. Managing AR requires a multifaceted approach to alleviate symptoms, preserve left ventricular function, and address the underlying cause of the regurgitation. Patients with symptomatic AR or significant left...
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Mitral Stenosis III: Medical Management01:26

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Mitral stenosis, a condition marked by the narrowing of the mitral valve, necessitates an integrated approach for effective management. This approach includes preventative measures, medical therapy, and surgical interventions to reduce symptoms and prevent complications.PreventionPrevention of mitral stenosis primarily focuses on reducing the incidence of bacterial infections, particularly streptococcal infections, which can lead to rheumatic fever and subsequent valvular damage. Timely...
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Related Experiment Video

Updated: Apr 7, 2026

Investigating Aortic Valve Calcification via Isolation and Culture of T Lymphocytes using Feeder Cells from Irradiated Buffy Coat
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Aortic Stenosis: Changing Disease Concepts.

Nina Rashedi1, Catherine M Otto1

  • 1Division of Cardiology, University of Washington School of Medicine, Seattle, WA, USA.

Journal of Cardiovascular Ultrasound
|July 4, 2015
PubMed
Summary
This summary is machine-generated.

Aortic stenosis (AS), common in older adults, has high mortality without intervention. Aortic valve replacement (AVR) improves survival and symptoms in severe cases, with choices based on patient risk factors.

Keywords:
Aortic stenosisEchocardiographyValve replacement

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Area of Science:

  • Cardiology
  • Geriatric Medicine
  • Valvular Heart Disease

Background:

  • Aortic stenosis (AS) affects nearly 10% of adults over 80, with a 50% 2-year mortality if untreated.
  • Risk factors include bicuspid valves, older age, hypertension, smoking, diabetes, and elevated lipoprotein(a) [Lp(a)].
  • Early AS involves leaflet thickening and calcification; progression to severe AS is inevitable without intervention.

Purpose of the Study:

  • To outline the medical management and treatment indications for aortic stenosis.
  • To discuss the role of aortic valve replacement (AVR) in symptomatic and asymptomatic patients.
  • To highlight factors influencing the choice between surgical and transcatheter AVR.

Main Methods:

  • Review of current medical therapy principles for asymptomatic AS, including monitoring and risk factor modification.
  • Evaluation criteria for severe AS, including symptom assessment and exercise testing.
  • Consideration of patient-specific factors for AVR decision-making.

Main Results:

  • No specific medical therapy exists to prevent AS leaflet calcification.
  • Aortic valve replacement (AVR) improves survival and symptom relief in symptomatic severe AS.
  • AVR is also indicated for asymptomatic severe AS with ejection fraction < 50%, rapid progression, or very severe obstruction (aortic velocity > 5 m/s).

Conclusions:

  • Management of AS involves risk factor modification and monitoring for asymptomatic patients.
  • Surgical or transcatheter AVR is crucial for symptomatic severe AS and selected asymptomatic cases.
  • Treatment decisions for AVR must balance estimated surgical risk with patient frailty and comorbidities.