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Updated: Sep 8, 2025

Studying Left Ventricular Reverse Remodeling by Aortic Debanding in Rodents
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大動脈の再形成:体積と機能を超えて考える時間?

George D Thornton1, Michael McKenna1,2, Jonathan Bennett1,3

  • 1Barts Heart Centre, St Bartholomew's Hospital, London, UK.

European heart journal. Cardiovascular Imaging
|September 5, 2025
PubMed
まとめ

現在行われている大動脈再発 (AR) 手術のガイドラインでは 早期の心臓損傷は 見過ごされることがあります 心筋線維症の心血管磁気共振 (CMR) 画像は,患者のリスク評価を改善し,手術のタイミングをパーソナライズすることができます.

キーワード:
MRI について心臓弁疾患大動脈の反吐大動脈弁の病気

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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 III: Medical Management01:25

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

Aortic 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...
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Mitral Regurgitation I: Introduction

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...
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Aortic Regurgitation IV: Nursing Management01:17

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