CBS 2019
CBSMD教育中心
English

科学研究

科研文章

荐读文献

Transcatheter versus Surgical Aortic Valve Replacement in Patients with Prior Cardiac Surgery in the Randomized PARTNER 2A Trial Impact of Lesion Preparation Strategies on Outcomes of Left Main PCI: The EXCEL Trial Dual-antiplatelet treatment beyond 1 year after drug-eluting stent implantation (ARCTIC-Interruption): a randomised trial Cardiac resynchronization therapy with a defibrillator (CRTd) in failing heart patients with type 2 diabetes mellitus and treated by glucagon-like peptide 1 receptor agonists (GLP-1 RA) therapy vs. conventional hypoglycemic drugs: arrhythmic burden, hospitalizations for heart failure, and CRTd responders rate Meta-Analysis of Effectiveness and Safety of Transcatheter Aortic Valve Implantation Versus Surgical Aortic Valve Replacement in Low-to-Intermediate Surgical Risk Cohort Noninvasive Nuclear SPECT Myocardial Blood Flow Quantitation to Guide Management for Coronary Artery Disease Chimney technique in a TAVR-in-TAVR procedure with high risk of left main artery ostium occlusion Six-month versus 12-month dual antiplatelet therapy after implantation of drug-eluting stents: the Efficacy of Xience/Promus Versus Cypher to Reduce Late Loss After Stenting (EXCELLENT) randomized, multicenter study Impact of Intravascular Ultrasound-Guided Drug-Eluting Stent Implantation on Patients With Chronic Kidney Disease: Subgroup Analysis From ULTIMATE Trial Clopidogrel or ticagrelor in acute coronary syndrome patients treated with newer-generation drug-eluting stents: CHANGE DAPT
|<<... 95 96 97 98 99 100 101 ...>>|

Original Research2019 May 7. pii: EIJ-D-18-01082.

JOURNAL：EuroIntervention. Article Link

Pulmonary Artery Denervation Using Catheter based Ultrasonic Energy

Rothman A, Jonas M, Castel D et al. Keywords: pulmonary artery denervation; pulmonary hypertension

ABSTRACT

AIMS -  Pulmonary arterial hypertension is a devastating disease characterized by pulmonary vascular remodelling and right heart failure. Radio-frequency pulmonary artery denervation (PDN) improves pulmonary hemodynamics in pre-clinical and early clinical studies, however denervation depth is limited. High-frequency non-focused ultrasound can deliver energy to the vessel adventitia, sparing the intima and media. We therefore investigated the feasibility, safety and efficacy of ultrasound PDN.

 

METHODS AND RESULTS -  Histological examination demonstrated that innervation of human pulmonary arteries are predominantly sympathetic (71%), with >40% of nerves at a depth of >4mm. Finite element analysis of ultrasound energy distribution and ex-vivo studies demonstrated generation of temperatures >47ºC to a depth of 10mm. In domestic swine PDN reduced mean pulmonary artery pressure induced by thromboxane A2 in comparison to sham. No adverse events were observed to 95-days. Histological examination identified structural and immunohistological alterations of nerves in PDN treated animals, with sparing of the intima and media and reduced tyrosine hydroxylase staining 95-days post-procedure indicating persistent alteration of the structure of sympathetic nerves.

 

CONCLUSIONS -  Ultrasound PDN is safe and effective in the pre-clinical setting, with energy delivery to a depth that will permit targeting sympathetic nerves in humans.

>CBS CBS 2019

> CBS 2019

> CBS 2019 注册

> CBS 2019 会议日程

> CBS 2019 学术征集

> CBS 2019 热点

 CBSMD

> CBSMD 网站注册

> 教育中心

> 荐读文献

> Top 10 阅读文献

> 文献导读
CBS 2019 CBS 2019 主席团 教育中心 科研动态
Copyright ⓒ CBS MD Nanjing China. All rights reserved. 京ICP备16025898号-11
联系我们| Top