From Excessive High-Flow, High-Gradient to Paradoxical Low-Flow, Low-Gradient Aortic Valve Stenosis: Hemodialysis Arteriovenous Fistula Model

被引：9

作者：

Ennezat, Pierre Vladimir

Marechaux, Sylvestre

Pibarot, Philippe

机构：

[1] Ctr Hosp Reg & Univ Lille, Div Cardiol & Ultrasound, Lille, France

[2] Univ Lille 2, Fac Med, EA 2693, Lille, France

[3] Univ Laval, Quebec Heart & Lung Inst, Inst Univ Cardiol & Pneumol Quebec, Quebec City, PQ, Canada

来源：

CARDIOLOGY | 2010年 / 116卷 / 01期

关键词：

Arteriovenous fistula; Calcific aortic stenosis; Chronic kidney disease;

D O I：

10.1159/000314938

中图分类号：

R5 [内科学];

学科分类号：

1002 ; 100201 ;

摘要：

The coexistence of aortic valve stenosis (AS) with hemodialysis arteriovenous (AV) fistula complicates the assessment of the severity of valvular disease. We describe the physiological changes in stenotic indices which occur following manual compression of the AV fistula. The manual compression of the AV fistula is capable of inducing significant alterations in transvalvular flow rates and valvulo-arterial impedance that translates into important changes in aortic valve hemodynamics and grading of stenosis severity. Copyright (C) 2010 S. Karger AG, Basel

引用

页码：70 / 72

页数：3

共 4 条

[1] Projected valve area at normal flow rate improves the assessment of stenosis severity in patients with low-flow, low-gradient aortic stenosis - The Multicenter TOPAS (truly or pseudo-severe aortic stenosis) study [J].