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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 IV: Nursing Management01:17

Aortic Regurgitation IV: Nursing Management

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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...
330
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...
475
Aortic Regurgitation II: Clinical Features and Diagnostic Tests01:22

Aortic Regurgitation II: Clinical Features and Diagnostic Tests

590
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...
590
Reinforcement01:23

Reinforcement

963
Positive and negative reinforcement are key concepts in operant conditioning, a learning process where the consequences of a behavior affect the likelihood of that behavior being repeated.
Positive reinforcement occurs when a behavior is followed by the presentation of a rewarding stimulus, increasing the frequency of that behavior. For example:
963
Corrosion of Reinforcement01:27

Corrosion of Reinforcement

596
The corrosion of steel reinforcement within concrete is a process influenced by the material's inherent properties and external factors. The high pH level of around 13, provided by calcium hydroxide present in concrete, initially protects the steel reinforcement by promoting the formation of a passive iron oxide layer on its surface.
However, over time and under certain conditions like carbonation, chloride ingress, and cracking this protective state can be compromised. Steel has areas with...
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Related Experiment Video

Updated: Feb 14, 2026

Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots
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Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots

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Reinforcement of suture lines with aortic eversion in aortic replacement.

Erhan Kaya1

  • 1Private Pendik Regional Hospital, Department of Cardiovascular Surgery, Istanbul, Turkey.

Cardiovascular Journal of Africa
|February 15, 2018
PubMed
Summary

Eversion of native aortic tissue during surgery creates a double-layer lumen, reducing complications like bleeding and pseudoaneurysms. This technique enhances aortic graft anastomosis safety and efficacy.

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Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement
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Murine Cervical Aortic Transplantation Model using a Modified Non-Suture Cuff Technique
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Area of Science:

  • Cardiovascular Surgery
  • Vascular Surgery
  • Surgical Techniques

Background:

  • Suture line complications are a significant concern in aortic surgeries.
  • Developing techniques to reinforce anastomosis is crucial for patient outcomes.

Purpose of the Study:

  • To describe and evaluate the technique of native aortic tissue eversion.
  • To assess the impact of this technique on preventing suture line complications.

Main Methods:

  • Retrospective assessment of 42 patients undergoing aortic aneurysm surgery.
  • Eversion of a 2 cm aortic segment proximally and distally to create a double-layer lumen for graft anastomosis.

Main Results:

  • Aortic root replacement in 14 patients; 8 had concurrent coronary artery bypass surgery.
  • Average postoperative drainage was 375 ± 75 ml, with no re-operations.
  • 27 patients required blood transfusion.

Conclusions:

  • Native aortic tissue eversion reinforces anastomosis lines.
  • This technique effectively reduces peri-operative blood loss, pseudo-aneurysm, and infection.
  • Utilizing viable native tissue offers a significant advantage.