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Related Concept Videos

Aortic Regurgitation III: Medical Management01:25

Aortic Regurgitation III: Medical Management

231
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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Aortic Regurgitation II: Clinical Features and Diagnostic Tests01:22

Aortic Regurgitation II: Clinical Features and Diagnostic Tests

260
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...
260
Aortic Regurgitation IV: Nursing Management01:17

Aortic Regurgitation IV: Nursing Management

192
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...
192

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Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots
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Aortic Valve Replacement In Alkaptonuric Ochronosis.

Elisa Landín Rey1, Amparo Martínez Monzonís2, Aurora Bajula3

  • 1Service of Cardiac Surgery. University Hospital. Department of Surgery and Medico-Surgical Specialities. School of Medicine. University of Santiago de Compostela, Spain.

Revista Portuguesa De Cirurgia Cardio-Toracica E Vascular : Orgao Oficial Da Sociedade Portuguesa De Cirurgia Cardio-Toracica E Vascular
|July 25, 2020
PubMed
Summary

Alkaptonuria, a metabolic disorder, causes ochronosis. This case highlights rare aortic valve involvement requiring replacement, offering insights into pathogenesis and treatment.

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Area of Science:

  • Biochemistry
  • Genetics
  • Cardiology

Background:

  • Alkaptonuria is an autosomal recessive metabolic disorder affecting aromatic amino acid metabolism.
  • It results from homogentisate 1,2-dioxygenase deficiency, leading to homogentisic acid accumulation.
  • This accumulation causes ochronosis, characterized by pigment deposition in connective tissues.

Observation:

  • Ochronosis most commonly manifests as arthropathy.
  • Cardiac involvement, particularly aortic valve disease, is infrequent.
  • This report details a patient with ochronotic aortic valve disease who underwent successful valve replacement.

Findings:

  • The patient's ochronotic aortic valve disease necessitated surgical intervention.
  • The case underscores the potential for severe connective tissue manifestations in alkaptonuria.
  • Successful valve replacement was achieved in this rare presentation.

Implications:

  • This case expands understanding of ochronosis complications beyond arthropathy.
  • It highlights the importance of considering cardiac involvement in alkaptonuria patients.
  • Further research into alkaptonuria pathogenesis and cardiac manifestations is warranted.