Role of PET to evaluate coronary microvascular dysfunction in non-ischemic cardiomyopathies.

Role of PET to evaluate coronary microvascular dysfunction in non-ischemic cardiomyopathies.
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DOI:
10.1007/s10741-017-9628-1
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发表时间:
2017-07
影响因子:
4.6
通讯作者:
Dorbala S
Dorbala S
中科院分区:
医学2区
文献类型:
--
作者:
Bravo PE;Di Carli MF;Dorbala S

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冠状动脉微血管功能障碍(coronary microvascular dysfunction,CMD)是由于冠状动脉壁内和小血管水平的结构和功能异常影响冠状动脉血流自动调节,从而导致冠状动脉血流储备受损。CMD通常与心外膜冠状动脉疾病共存,但也常见于各种形式的心脏病患者,包括扩张性、肥厚性和浸润性心肌病。CMD可以在没有任何症状的情况下被忽视,或者表现为心绞痛和/或呼吸困难,并且有助于心力衰竭的发展,甚至猝死,特别是当与心肌纤维化共存时。然而,非缺血性心肌病中的CMD是否是潜在的心肌病过程的原因或影响,或者它是否可以通过特定的治疗进行潜在的修改,仍然不完全清楚。
Coronary microvascular dysfunction (CMD) can result from structural and functional abnormalities at the intramural and small coronary vessel level affecting coronary blood flow autoregulation, and consequently leading to impaired coronary flow reserve. CMD often co-exists with epicardial coronary artery disease, but is also commonly seen in patients with various forms of heart disease, including dilated, hypertrophic and infiltrative cardiomyopathies. CMD can go unnoticed without any symptoms, or manifest as angina, and/or dyspnea, and contribute to the development of heart failure, and even sudden death especially when co-existing with myocardial fibrosis. However, whether CMD in non-ischemic cardiomyopathy is a cause or an effect of the underlying cardiomyopathic process, or whether it can be potentially modifiable with specific therapies, remains incompletely understood.
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发表时间: 2011-12-01
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