CBS 2019
CBSMD教育中心
中 文

Scientific Library

Abstract

Recommended Article

Chimney technique in a TAVR-in-TAVR procedure with high risk of left main artery ostium occlusion The role of integrated backscatter intravascular ultrasound in characterizing bare metal and drug-eluting stent restenotic neointima as compared to optical coherence tomography Ticagrelor versus clopidogrel in patients with acute coronary syndromes Intravascular ultrasound-guided percutaneous coronary intervention improves the clinical outcome in patients undergoing multiple overlapping drug-eluting stents implantation Preventive Cardiology as a Subspecialty of Cardiovascular Medicine: JACC Council Perspectives Nicotine promotes vascular calcification via intracellular Ca21-mediated, Nox5-induced oxidative stress, and extracellular vesicle release in vascular smooth muscle cells Coronary Atherosclerotic Precursors of Acute Coronary Syndromes The effect of complete percutaneous revascularisation with and without intravascular ultrasound guidance in the drugeluting stent era

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)....