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Related Concept Videos

Mitral Regurgitation III: Medical Management01:25

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Mitral regurgitation (MR) is characterized by retrograde blood circulation from the left ventricle into the left atrium due to inadequate mitral valve closure. The severity of the condition, symptoms, and underlying cause determine treatment strategies.Monitoring and Pharmacological TreatmentPatients with mild to moderate MR typically do not need immediate intervention but regular monitoring to assess progression and guide treatment. Patients with mild MR should have an echocardiogram every 3-5...
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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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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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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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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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Aortic Regurgitation IV: Nursing Management01:17

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A nurse managing a patient with aortic regurgitation begins with a comprehensive assessment, including a review of the patient's medical history, family history, and lifestyle factors. During the cardiac examination, the nurse listens for heart sounds and checks for signs of valve abnormalities. The nurse also observes for symptoms such as dyspnea, orthopnea, and paroxysmal nocturnal dyspnea and assesses the patient's endurance and daily activity tolerance.Based on the findings, the nurse...
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Transcatheter Aortic Valve Replacement for Structural Valve Deterioration After Aortic Valve Neocuspidization.

Natsuko Satomi1, Masaki Miyasaka1,2, Yusuke Enta1

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Catheterization and Cardiovascular Interventions : Official Journal of the Society for Cardiac Angiography & Interventions
|May 15, 2025
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Summary

Transcatheter aortic valve replacement (TAVR) is feasible for structural valve deterioration (SVD) after aortic valve neocuspidization (AVNeo). Careful planning is needed to avoid complications like deep implantation or annulus rupture.

Keywords:
aortic valve neocuspidizationcoronary obstructionstructural valve degenerationtranscatheter aortic valve replacement

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Area of Science:

  • Cardiovascular Surgery
  • Interventional Cardiology
  • Biomaterials Science

Background:

  • Limited evidence exists on structural valve deterioration (SVD) following aortic valve neocuspidization (AVNeo).
  • Transcatheter aortic valve replacement (TAVR) presents a less invasive alternative, but its applicability in this context is not well-established.

Purpose of the Study:

  • To characterize SVD in patients who previously underwent AVNeo.
  • To evaluate the feasibility and outcomes of TAVR in patients with SVD after AVNeo.

Main Methods:

  • Retrospective analysis of 11 patients who underwent TAVR for SVD post-AVNeo.
  • Categorization of patients into aortic stenosis (AS-SVD) and aortic regurgitation (AR-SVD) groups.
  • Assessment of procedural success, complications, and anatomical parameters.

Main Results:

  • The AS-SVD group had a shorter interval from AVNeo to TAVR and a smaller aortic annulus area compared to the AR-SVD group.
  • TAVR achieved 91% technical success. No coronary obstruction occurred despite concerns about long leaflets.
  • Complications included one case of second valve implantation, two instances of new conduction disturbance, and one aortic contained rupture.

Conclusions:

  • Observed rapid progression of AS-SVD and later onset of AR-SVD suggest a need for further research into AVNeo durability.
  • TAVR is a feasible treatment option for SVD after AVNeo.
  • Precautions for coronary obstruction may not be essential; accurate CT-based basal ring determination is crucial for optimal TAVR outcomes.