نتایج جستجو برای: cardiac microcirculation
تعداد نتایج: 281951 فیلتر نتایج به سال:
Ultrasound has become a useful high resolution imaging modality for examining the cardiac microcirculation. With the use of microbubbles as an ultrasound contrast agent, ultrasound can be utilized to image the microcirculation and detect capillary flow abnormalities in acute ischaemia. A wide range of ultrasound frequencies (including those used for diagnostic transthoracic imaging) have also b...
Systemic sclerosis (SSc) is a connective tissue disease characterised by widespread vascular lesions and fibrosis of the skin and internal organs. Cardiac involvement is recognised as a poor prognostic factor when clinically evident. Primary myocardial involvement is common in SSc. Increasing evidence strongly suggests that myocardial involvement is related to repeated focal ischaemia leading t...
The microcirculation with its endothelial lining is estimated o represent an area of 4000–7000 m2 and is thus best viewed s the body’s largest integrated functional organ system.1–3 The ndividual microcirculatory unit composed of arteriole, capillary ed, and postcapillary venule is designed to ensure the delivery of xygen and other nutrients to tissues as well as to remove prodcts of metabolism...
با گذراندن سوزن باریکی در غده لنفاوی قلب سگ که روش آن تحت عنوان clnc ذکرشده است (cannulation of cardiac lymph node) لنف بدست آمده با آنچه از راه رگ لنفاوی قلب بدست میاید و با عنوان clve نشان داده شده است (cardiac lymph vessel cannulation) از نظر مقدار پروتئین و جریان لنف مقایسه و مشاهده گردید که روش clnc ساده تر و بیشتر مقرون بموفقیت بوده و مقدار لنفاوی و پروتئین آن نیز با آنچه که توسط clvc بدس...
Abstract Introduction Cardiac disease induces remodelling which can include fibrosis, cardiomyocyte hypertrophy, cardiac dilation, and finally lead to heart failure. Age is one of the main risk factors cardiovascular remodelling, in particular, it has profound effects on microcirculation. Pericytes are microvascular mural cells involved maintenance stability homeostasis vascular network. Althou...
Methods We evaluated the sublingual microcirculation of patients with hyperdynamic (n = 20) and normodynamic (n = 20) septic shock, and in healthy volunteers (n = 20). We defined hyperdynamic septic shock as a cardiac index > 4.0 L/min/m. Videos were acquired with a SDF-imaging device and analyzed with the AVA 3.0 software. Microvascular variables were compared with one-way ANOVA. Histograms of...
Background Coronary perfusion pressure is a combination of proximal perfusion pressure and distal coronary artery pressure resulting from contraction and relaxation of the myocardium and the consequences on the microcirculation. Wave intensity analysis (WIA) defines dominant waves causing coronary filling during the cardiac cycle and allows separation of proximally and distally originating wave...
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