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跨吸管微创性大动脉植入:多中心体验

Thomas Walther1, Paul Simon, Todd Dewey

  • 1University Leipzig, Heartcenter, Department of Cardiac Surgery, Leipzig, Germany. walt@medizin.uni-leipzig.de

Circulation
|September 14, 2007
PubMed
概括

对高风险大动脉狭窄患者来说,微创性跨门大动脉植入 (TAP-AVI) 提供了安全的,早期的成功. 需要进一步的研究来评估长期结果并扩大其应用.

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Mitral Regurgitation I: Introduction01:20

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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 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...