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Bioprosthetic valve oversizing is associated with increased risk of valve thrombosis following TAVR Predictors of high residual gradient after transcatheter aortic valve replacement in bicuspid aortic valve stenosis Chimney technique in a TAVR-in-TAVR procedure with high risk of left main artery ostium occlusion Relationship Between Hospital Surgical Aortic Valve Replacement Volume and Transcatheter Aortic Valve Replacement Outcomes Early Surgery or Conservative Care for Asymptomatic Aortic Stenosis The Utility of Rapid Atrial Pacing Immediately Post-TAVR to Predict the Need for Pacemaker Implantation Increased Risk of Valvular Heart Disease in Systemic Sclerosis: An Underrecognized Cardiac Complication Poor Long-Term Survival in Patients With Moderate Aortic Stenosis Aortic Valve Stenosis Treatment Disparities in the Underserved JACC Council Perspectives Coronary Access After TAVR
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Clinical Case Study2020 Nov 14;ehaa817.

JOURNAL：Eur Heart J. Article Link

Chimney technique in a TAVR-in-TAVR procedure with high risk of left main artery ostium occlusion

A Dibie, Q Landolff, A Veugeois et al. Keywords: clinical case; chimney technique; TAVR-in-TAVR procedure; left main artery ostium occlusion

ABSTRACT

An 87-year-old woman was referred to our centre for a valve-in-valve transcatheter aortic valve replacement (TAVR). She underwent a TAVR procedure with implantation of a SAPIEN XT 26 mm (Edwards Lifesciences) bioprosthesis 7 years before but subsequently developed symptomatic aortic valve failure (mean gradient = 64 mmHg).

Pre-procedural computed tomography (CT) scan identified a low height between the valvular plane and left main coronary artery (LMA) ostium equal to 2.7 mm (Panel A1). Valve simulation technique was applied: the virtual transcatheter heart valve/coronary distance was measured at 4.0 mm (Panel A2). The coronary angiography revealed no recurrent stenosis (Panel B)....

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