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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...
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Heart Valves01:16

Heart Valves

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The human heart is a complex organ with an intricate system of valves that regulate blood flow. There are two main types of valves: atrioventricular (AV) valves and semilunar valves.
The AV valves prevent the backflow of blood from the ventricles to the atria during ventricular contraction. These valves function with the assistance of the chordae tendineae and papillary muscles. When the ventricles are relaxed, the chordae tendineae are slack, allowing blood to flow from the atria into 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...
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Mitral Valve Prolapse II: Assessment and Management01:22

Mitral Valve Prolapse II: Assessment and Management

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IntroductionA range of clinical features characterizes Mitral Valve Prolapse (MVP), but it is important to note that many individuals with MVP are asymptomatic and may remain so throughout their lives. For those who do exhibit symptoms, the following are the key clinical features:Palpitations: This is a common symptom where individuals feel an irregular or rapid heartbeat. Palpitations in MVP are often due to arrhythmias such as premature ventricular contractions or supraventricular...
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Related Experiment Video

Updated: Nov 30, 2025

Author Spotlight: Advancing Cardiac Procedure Testing Prior to Embarking on Large Animal Studies
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Aortic valve fenestrations: a review.

Caixia Zhu1, Sofia C Torres2, José Pedro L Nunes1,2

  • 1Faculdade de Medicina da Universidade do Porto.

Porto Biomedical Journal
|November 16, 2020
PubMed
Summary
This summary is machine-generated.

Aortic valve fenestrations (AVFs) are common, found in over half of autopsy studies, and more frequent in men and older individuals. While usually asymptomatic, AVFs may contribute to severe aortic regurgitation, warranting further research.

Keywords:
aortic insufficiencyaortic regurgitationaortic valve fenestrationsreview

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Area of Science:

  • Cardiology
  • Valvular Heart Disease
  • Anatomical Variations

Background:

  • Aortic valve fenestrations (AVFs) are anatomical variations of the aortic valve.
  • Their prevalence and clinical significance in human heart disease remain unclear.
  • AVFs are potentially more common than previously recognized.

Purpose of the Study:

  • To review and synthesize existing scientific literature on human patients with aortic valve fenestrations.
  • To assess the reported prevalence, clinical associations, and potential impact of AVFs on aortic regurgitation.
  • To identify limitations in current diagnostic methods for AVFs.

Main Methods:

  • A comprehensive literature search was conducted on Medline (PubMed) and ISI Web of Knowledge.
  • The review focused on scientific reports concerning human patients with aortic valve fenestrations.
  • Fifty-five relevant reports were analyzed.

Main Results:

  • Aortic valve fenestrations were present in 55.9% of individuals in autopsy studies.
  • AVFs occur more frequently in males and with increasing age.
  • While typically asymptomatic, AVFs can be associated with severe aortic regurgitation and specific genetic syndromes (Down, Marfan) and valvular conditions (bicuspid, quadricuspid, myxomatous degeneration).
  • Echocardiography may have limitations in diagnosing valvular fenestrations.

Conclusions:

  • Aortic valve fenestrations are a common finding associated with specific clinical conditions.
  • The role of AVFs in the current prevalence of aortic valve disease is unknown.
  • Further research is needed to elucidate the etiology, clinical impact, and diagnostic criteria for AVFs in aortic valve disease.