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Related Concept Videos

Aortic Regurgitation I: Introduction01:15

Aortic Regurgitation I: Introduction

442
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...
442
Mitral Stenosis IV: Nursing Management01:27

Mitral Stenosis IV: Nursing Management

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A comprehensive nursing assessment is essential for patients with valvular heart disease, which involves any dysfunction of the heart valves that could impact blood flow and overall heart function.Subjective Data Collection:Chief Complaint and Present Illness: Start with the patient's primary concerns, focusing on the onset, duration, and progression of cardiac symptoms such as dyspnea, fatigue, chest pain, and palpitations.Past Medical History: Collect detailed information on any previous...
237
Aortic Regurgitation II: Clinical Features and Diagnostic Tests01:22

Aortic Regurgitation II: Clinical Features and Diagnostic Tests

383
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...
383
Mitral Stenosis I: Introduction01:22

Mitral Stenosis I: Introduction

420
Mitral Valve Stenosis (MVS) is a heart condition where the mitral valve narrows, impeding blood circulation from the left atrium to the left ventricle. The etiology and pathophysiology of this condition are multifaceted, leading to a cascade of cardiovascular complications.Causes of Mitral Valve StenosisRheumatic Heart Disease: It is the main cause of mitral valve stenosis, particularly in developing nations. This condition arises from rheumatic fever, an inflammatory illness resulting from...
420
Mitral Regurgitation I: Introduction01:20

Mitral Regurgitation I: Introduction

392
Mitral regurgitation is characterized by the backward circulation of blood from the left ventricle to the left atrium during systole, a phase of the cardiac cycle when the heart contracts and pumps blood out of the chambers. This abnormal flow occurs primarily due to the dysfunction of the mitral valve or its supporting structures, which include the mitral leaflets, chordae tendineae, annulus, and papillary muscles.Etiology and Mechanisms:Primary Mitral Regurgitation: This type arises from...
392
Aortic Regurgitation III: Medical Management01:25

Aortic Regurgitation III: Medical Management

379
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...
379

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Related Experiment Video

Updated: Jan 10, 2026

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Understanding the Transvalvular Gradient in Aortic Stenosis: A Multifaceted Perspective.

Giovanni La Canna1, Sara Habjan2, Iside Scarfò1

  • 1Applied Diagnostic Echocardiography Unit, IRCCS Humanitas Clinical and Research Hospital, 20089 Rozzano, Italy.

Journal of Clinical Medicine
|November 27, 2025
PubMed
Summary

Aortic stenosis (AS) management is complex due to multiple factors influencing transvalvular gradient (TVG). Understanding TVG phenotypes can improve diagnosis, risk assessment, and treatment strategies for AS patients.

Keywords:
aortic stenosisaortic valve reservetransvalvular gradient

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Area of Science:

  • Cardiology
  • Biomedical Engineering
  • Medical Imaging

Background:

  • Aortic stenosis (AS) presents a growing epidemiological challenge, complicated by cardiac co-pathology and comorbidities.
  • Effective management of AS relies on timely valve replacement, contingent upon identifying hemodynamically significant obstruction.

Purpose of the Study:

  • To explore the multifaceted nature of transvalvular gradient (TVG) in assessing aortic stenosis severity.
  • To highlight the potential of advanced imaging and fluid dynamics for refining TVG assessment and guiding clinical decisions.

Main Methods:

  • Analysis of transvalvular gradient (TVG) considering anatomical, mechanical, and fluid-dynamic factors.
  • Exploration of emerging imaging modalities like 3D echocardiography and advanced fluid dynamics analysis for TVG phenotyping.

Main Results:

  • Transvalvular gradient (TVG) assessment is challenged by its complex interplay of variables.
  • Phenotyping TVG offers potential for enhanced diagnostic work-up and risk stratification in AS.

Conclusions:

  • A deeper understanding of TVG substrates is crucial for insights into valve obstruction and left ventricular function.
  • Tailoring TVG-guided clinical strategies is essential for managing the evolving landscape of aortic stenosis.