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Related Concept Videos

Aortic Regurgitation III: Medical Management01:25

Aortic Regurgitation III: Medical Management

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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 I: Introduction01:15

Aortic Regurgitation I: Introduction

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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 III: Medical Management01:26

Mitral Stenosis III: Medical Management

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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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Aortic Regurgitation II: Clinical Features and Diagnostic Tests01:22

Aortic Regurgitation II: Clinical Features and Diagnostic Tests

731
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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Related Experiment Video

Updated: Mar 9, 2026

Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement
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Valve-sparing aortic root replacement for a prolapsing asymmetric valve.

Daisuke Takahashi1,2, Norihiko Shiiya2, Naoki Washiyama2

  • 1Department of Nephrology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Yushima, Bunkyo, Tokyo, Japan.

Interactive Cardiovascular and Thoracic Surgery
|January 2, 2017
PubMed
Summary

Valve-sparing aortic root replacement is difficult for asymmetric severe aortic regurgitation. This case demonstrates successful reimplantation by adjusting commissure alignment to correct prolapse without cusp plication.

Keywords:
Aortic valve repairValve asymmetryValve-sparing aortic root replacement

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Area of Science:

  • Cardiovascular Surgery
  • Cardiac Surgery
  • Aortic Valve Repair

Background:

  • Valve-sparing aortic root replacement is complex in severe aortic regurgitation with asymmetric cusps.
  • Eccentric regurgitation poses unique challenges for standard surgical techniques.

Observation:

  • A patient presented with eccentric severe aortic regurgitation and totally asymmetric aortic valve cusps.
  • The inter-commissural distances were significantly different, complicating standard repair.

Findings:

  • Successful aortic valve reimplantation was achieved by asymmetrically aligning the three commissures.
  • Right coronary cusp prolapse was corrected by adjusting commissure position and height.
  • This technique avoided the need for cusp plication, preserving cusp tissue.

Implications:

  • This case highlights a potential strategy for managing complex aortic regurgitation with asymmetric valve anatomy.
  • The described commissure alignment technique may offer a solution for challenging valve-sparing aortic root replacements.
  • Further research could explore the long-term efficacy of this asymmetric approach.