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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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The Aorta01:14

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The aorta is the largest artery in the human body. It originates from the left ventricle of the heart and extends down to the abdomen, where it splits into two smaller arteries. Structurally, it can be divided into four main parts: the ascending aorta, the aortic arch, the thoracic aorta, and the abdominal aorta.
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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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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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Thoracic Aorta01:15

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The thoracic section of the aorta begins at the T5 vertebra and extends to the T12 level at the diaphragm, initially progressing through the mediastinum to the left of the spinal column. Throughout its course in the thoracic segment, the thoracic aorta emits various offshoots known collectively as visceral and parietal branches. The branches that predominantly supply blood to visceral organs are termed visceral branches and include bronchial, pericardial, esophageal, and mediastinal arteries,...
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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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Related Experiment Video

Updated: Apr 27, 2026

Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots
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What is aortic overriding?

Robert H Anderson1, Diane E Spicer2, G William Henry3

  • 11Institute of Genetic Medicine,Newcastle University,Newcastle,United Kingdom.

Cardiology in the Young
|July 2, 2014
PubMed
Summary
This summary is machine-generated.

Aortic overriding is best understood as a biventricular connection of the aortic root with deficient ventricular septation. This clarifies distinctions in ventriculo-arterial connections and aids pediatric cardiologists in diagnosis.

Keywords:
cardiac development

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Area of Science:

  • Cardiovascular Anatomy
  • Pediatric Cardiology
  • Congenital Heart Disease

Background:

  • Current definitions of aortic dextroposition are debated, often confused with aortic overriding.
  • The term dextroposition is ill-suited for aortic valve overriding, leading to classification issues.
  • Distinguishing 'true' from 'false' dextroposition arises from the inadequacy of the term for overriding.

Purpose of the Study:

  • To clarify the definition and understanding of aortic overriding.
  • To establish a framework for analyzing ventriculo-arterial connections in congenital heart disease.
  • To differentiate between various types of aortic root connections.

Main Methods:

  • Review of developmental, morphologic, and clinical data.
  • Analysis of aortic overriding based on biventricular aortic root connection.
  • Examination of deficient ventricular septation and its impact.

Main Results:

  • Aortic overriding is best defined by biventricular aortic root connection with deficient ventricular septation.
  • This framework allows clear distinction between one-to-one and double outlet ventriculo-arterial connections.
  • The concept of overriding applies to aortic, pulmonary, and common arterial roots.

Conclusions:

  • Modern diagnostic techniques accurately illustrate arterial valvar overriding.
  • Improved understanding aids in optimal decision-making for pediatric cardiologists.
  • Accurate diagnosis of overriding is crucial for managing congenital heart defects.