Related Experiment Video
Updated: Jul 6, 2026
08:12
Surgically Induced Cardiac Volume Overload by Aortic Regurgitation in Mouse
Published on: August 30, 2022
Aortic regurgitation: disease progression and management
Seth H Goldbarg1, Jonathan L Halperin
1The Cardiovascular Institute, Box 1030, Mount Sinai Medical Center, One Gustave L Levy Place, New York, NY 10029, USA. seth.goldbarg@mountsinai.org
Nature Clinical Practice. Cardiovascular Medicine
|March 28, 2008
Summary
Aortic regurgitation (AR) management hinges on left ventricular (LV) mechanics and aortic impedance. Early severe AR without LV enlargement is often benign, but surgical intervention is indicated once LV enlargement occurs.
Area of Science:
- Cardiology
- Cardiovascular Medicine
- Valvular Heart Disease
Background:
- Aortic regurgitation (AR) is a prevalent valvular heart disease with significant morbidity and mortality if unmanaged.
- Left ventricular (LV) mechanics and aortic impedance are key factors influencing AR patient outcomes and treatment strategies.
Purpose of the Study:
- To review the epidemiology of AR, focusing on the interplay between arterial and ventricular forces in disease progression.
- To analyze current practice guidelines for the diagnosis and treatment of AR.
Main Methods:
- Review of existing literature on AR epidemiology, pathophysiology, and clinical management.
- Analysis of diagnostic criteria and therapeutic recommendations from established practice guidelines.
Main Results:
- Mild and moderate AR with normal LV dimensions are typically benign.
- Severe AR without LV enlargement or symptoms is not associated with increased mortality.
- LV enlargement signals potential for symptoms and/or reduced ejection fraction, indicating surgical intervention.
Conclusions:
- Disease progression in AR is variable and often insidious, with symptoms not always correlating with ventricular dysfunction.
- Exercise testing can reveal symptoms related to AR.
- Vasodilator therapy may benefit asymptomatic severe AR patients with preserved LV function, though results are inconsistent.
Related Concept Videos
01:15Aortic Regurgitation I: Introduction
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...
01:25Aortic Regurgitation III: Medical Management
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...
01:17Aortic Regurgitation IV: Nursing Management
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...
01:22Aortic Regurgitation II: Clinical Features and Diagnostic Tests
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...
01:25Mitral Regurgitation III: Medical Management
Mitral regurgitation (MR) is characterized by retrograde blood circulation from the left ventricle into the left atrium due to inadequate mitral valve closure. The severity of the condition, symptoms, and underlying cause determine treatment strategies.Monitoring and Pharmacological TreatmentPatients with mild to moderate MR typically do not need immediate intervention but regular monitoring to assess progression and guide treatment. Patients with mild MR should have an echocardiogram every 3-5...
01:28Mitral Regurgitation IV: Nursing Management
Mitral regurgitation (MR) is a condition where the mitral valve does not close properly, leading to the backward flow of blood from the left ventricle into the left atrium during systole. This condition can arise from various causes, including rheumatic fever, infective endocarditis, or degenerative valve disease. Effective nursing management is crucial to optimizing patient outcomes and involves comprehensive assessment and targeted interventions.Comprehensive Patient AssessmentA detailed...