CBS 2019
CBSMD教育中心
English

科学研究

科研文章

荐读文献

Six Versus 12 Months of Dual Antiplatelet Therapy After Implantation of Biodegradable Polymer Sirolimus-Eluting Stent: Randomized Substudy of the I-LOVE-IT 2 Trial Twelve or 30 months of dual antiplatelet therapy after drug-eluting stents Temporal Trends in Transcatheter Aortic Valve Replacement in France: FRANCE 2 to FRANCE TAVI Primary Prevention of Sudden Cardiac Death From Focal Lipid Storage to Systemic Inflammation Cardiovascular Considerations in Caring for Pregnant Patients: A Scientific Statement From the American Heart Association Effect of Evolocumab on Complex Coronary Disease Requiring Revascularization Universal Definition and Classification of Heart Failure: A Report of the Heart Failure Society of America, Heart Failure Association of the European Society of Cardiology, Japanese Heart Failure Society and Writing Committee of the Universal Definition of Heart Failure Suture- or Plug-Based Large-Bore Arteriotomy Closure: A Pilot Randomized Controlled Trial Permanent pacemaker use among patients with heart failure and preserved ejection fraction: Findings from the Acute Decompensated Heart Failure National Registry (ADHERE) National Registry
|<<... 86 87 88 89 90 91 92 ...>>|

Review Article2018 Jun 25.[Epub ahead of print]

JOURNAL：Curr Pharm Des. Article Link

Coronary Microcirculation in Ischemic Heart Disease

Pries AR, Kuebler WM, Habazettl H. Keywords: Angioadaptation; Heterogeneity; Inflammation; Leucocyte-Endothelium Interaction; Microvessels; vascular Permeability

ABSTRACT

BACKGROUND - Ischemic heart disease has long been considered to be exlusively caused by stenosis or occlusion. However, the coronary microcirculation too may play an important role in ischemic conditions. Also, the crucial role of microvessels in not only regulating blood flow on a local level but also mediating vascular permeability or inflammatory responses has been recognized.


OBJECTIVE - To review important physiological and pathophysiological mechanisms of coronary microcirculatory control with focus on heterogeneity of local perfusion, microvascular permeability and inflammation.

METHOD - Selective research of the literature.

RESULTS - Heterogeneity is a characteristic of microvascular networks and affects structural and functional parameters such as vessel diameter, length, and connection pattern, flow velocity, wall shear stress, and oxygenation. The networks are optimized to meet the metabolic demand of all tissue compartments. This requires continuous vascular adaptation regulated by local hemodynamic and metabolic stimuli. Compromising this regulation results in functional arterio-venous shunting and tissue areas with either hyperperfusion or hypoxia in close proximity. In ischemia-reperfusion, increased microvascular permeability may aggravate tissue hypoxia by increasing extravascular pressure and seems to contribute to adverse myocardial remodeling. Transendothelial transport mechanisms and deterioration of the endothelial glycocalyx seem to be major contributors to tissue edema. Also in the context of ischemia-reperfusion, an inflammatory response mediated by venular endothelium expressing specific adhesion molecules contributes to tissue injury. However, anti-inflammatory therapies failed in clinical studies and a multi-targeted approach for cardiac protection has been demanded.

CONCLUSION - Disturbances of the coronary microcirculation are involved in different pathophysiological aspects of reperfusion injury.

Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.org.
>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