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Related Concept Videos

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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Aortic Regurgitation II: Clinical Features and Diagnostic Tests01:22

Aortic Regurgitation II: Clinical Features and Diagnostic Tests

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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 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...
598
Aneurysm I: Introduction01:30

Aneurysm I: Introduction

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An aortic aneurysm is a localized outpouching or dilation at a weak point in the artery wall. It may involve different parts of the aorta, such as the abdominal aorta, aortic arch, or thoracic aorta.Etiological factorsSeveral disorders are associated with aortic aneurysms.Congenital causes, such as primary connective tissue disorders like Marfan syndrome, impact the integrity and strength of connective tissues, notably affecting the aorta. Marfan syndrome is a genetic disorder that specifically...
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Aneurysm II: Clinical Manifestations and Diagnostic Studies01:21

Aneurysm II: Clinical Manifestations and Diagnostic Studies

589
Thoracic, aortic arch and abdominal aneurysms are significant vascular conditions that can present with various clinical manifestations and lead to serious complications. Understanding these manifestations and the appropriate diagnostic studies is essential for effective management and treatment.Thoracic Aortic AneurysmsThoracic aortic aneurysms often remain asymptomatic until they reach a size that impinges on adjacent structures. They typically cause deep, diffuse chest pain that radiates to...
589
Aneurysm III: Interprofessional Care01:26

Aneurysm III: Interprofessional Care

478
Aneurysm management involves either conservative medical therapy or surgical intervention, depending on the size and symptoms of the aneurysm. Conservative management is generally reserved for smaller, asymptomatic aneurysms, while larger or symptomatic aneurysms often necessitate surgical repair.Conservative Medical TherapyFor small, asymptomatic aneurysms, particularly abdominal aortic aneurysms (AAA) less than 5.5 centimeters in diameter, conservative medical therapy is recommended. This...
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Related Experiment Video

Updated: May 2, 2026

Patch Angioplasty in the Rat Aorta or Inferior Vena Cava
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Aortic annular enlargement with Y-incision/rectangular patch.

Bo Yang1

  • 1Department of Cardiac Surgery, University of Michigan, Ann Arbor, MI, USA.

Annals of Cardiothoracic Surgery
|June 6, 2024
PubMed
Summary
This summary is machine-generated.

The Y-incision/rectangular patch aortic annular enlargement is a simple and effective technique for aortic valve replacement surgery. This method demonstrates favorable outcomes, including reduced complications and improved heart function post-surgery.

Keywords:
Aortic valve replacement (AVR)aortic annular enlargement (AAE)aortic root enlargementaortic stenosissmall aortic root

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Novel and Innovative Hybrid Technique for Type A Aortic Dissection
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Area of Science:

  • Cardiovascular Surgery
  • Cardiac Surgery Techniques
  • Aortic Valve Repair and Replacement

Background:

  • The Y-incision/rectangular patch aortic annular enlargement (AAE) is a preferred technique for aortic annular/root enlargement in surgical aortic valve replacement (SAVR).
  • This technique is utilized in both primary and reoperative SAVR cases, accommodating different aortotomy approaches.

Discussion:

  • The Y-incision AAE involves specific anatomical incisions and patch placement to enlarge the aortic annulus.
  • Sizing and suturing techniques are detailed, including non-everting sutures and specific tie-first sequences for optimal valve seating.
  • The technique facilitates ascending aorta enlargement and uses the "Roof" technique for aortotomy closure.

Key Insights:

  • In 142 cases, the median prosthetic valve size was 29, with 3-4 valve size upsizing.
  • Outcomes included one death, one stroke, and two pacemaker implantations; notably, no reoperations for bleeding were required.
  • Two-year follow-up showed a median aortic valve mean gradient of 7 mmHg and an aortic valve area of 2.4 cm².

Outlook:

  • Significant left ventricular mass index regression (41%) was observed within 12-24 months in patients with moderate/severe aortic stenosis.
  • The Y-incision AAE technique shows promise for improving long-term cardiac function and remodeling post-SAVR.
  • Further studies could explore long-term durability and broader application across diverse patient populations.