نتایج جستجو برای: haemodynamics
تعداد نتایج: 2457 فیلتر نتایج به سال:
Autonomic dysfunction seems to play a central role in the pathophysiology of neurocardiogenic syncope (NCS) but conflicting data have recently become available. We evaluated autonomic nervous system (ANS) function (heart rate variability (HRV), systolic blood pressure variability (SBPV) and baroreceptor gain (BRG)) and non-invasive haemodynamics (cardiac output and total peripheral resistance) ...
A small ventricular septal defect in an 18 year old man was shown by serial cardiac catheterisation to be associated with a progressive increase in pulmonary arterial pressure. Surgical closure of the defect had no effect on the increased pulmonary arterial pressure. Whether pulmonary hypertension occurred secondary to the haemodynamics of the ventricular septal defect or as an independent even...
In this paper we will address the problem of developing mathematical models for the numerical simulation of the human circulatory system. In particular, we will focus our attention on the problem of haemodynamics in large human arteries. 2000 Mathematics Subject Classification: 93A30, 35Q30, 74F10, 65N30.
The value of the continuous monitoring of end-tidal carbon dioxide concentration as an indicator of the acute intraoperative interruption of pulmonary blood flow, in patients with pre-existing restrictions of pulmonary blood flow undergoing closed heart surgery, is illustrated by two case reports. Decreases in end-tidal carbon dioxide concentration often appeared several minutes before the chan...
The number of antiarrhythmic drugs has grown dramatically over the last 15 years, because ofthe need for effective and safe agents to prevent or control cardiac arrhythmias. In the clinical situation, logical choice of a particular antiarrhythmic drug depends not only on a demonstration of its effectiveness against various sorts of arrhythmias, but also on a knowledge of its pharmacokinetics, h...
AIMS Alpha-lipoic acid (ALA) is a thiol compound with antioxidant properties used in the treatment of diabetic polyneuropathy. ALA may also improve arterial function, but there have been scant human trials examining this notion. This project aimed to investigate the effects of oral and intra-arterial ALA on changes in systemic and regional haemodynamics, respectively. METHODS In study 1, 16 h...
AIMS The impact of exercise training on the right heart and pulmonary circulation has not yet been invasively assessed in patients with pulmonary hypertension (PH) and right heart failure. This prospective randomized controlled study investigates the effects of exercise training on peak VO2/kg, haemodynamics, and further clinically relevant parameters in PH patients. METHODS AND RESULTS Eight...
Developmental venous anomaly (DVA)/ Cerebral Venous Angioma is the most common type of cerebral vascular malformations, mostly an incidental benign finding. But there are documented associated complications like parenchymal signal abnormalities, thrombosis, cavernous malformations and atrophy.
 In this report, we present a unique case DVA with cortical changes mimicking Glioma. Altered hae...
To the editor, In response to: Assessment of oxygenation after balloon pulmonary angioplasty for patients with inoperable chronic thromboembolic hypertension. We read interest study by Matsuoka et al. [1] reporting on effects (BPA) tissue oxygenation. Despite an improvement in haemodynamics following BPA, authors conclude that oxygenation, exercise-induced desaturation (EID) and exertional dys...
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