نتایج جستجو برای: hemodynamic properties
تعداد نتایج: 900931 فیلتر نتایج به سال:
BACKGROUND Patients with chronic kidney disease have a markedly increased cardiovascular mortality compared with the general population. Long chain n-3 polyunsaturated fatty acids have been suggested to possess cardioprotective properties. This cross-sectional and comparative study evaluated correlations between hemodynamic measurements, resistance artery function and fish consumption to the co...
Functional magnetic resonance imaging was used to investigate hemodynamic responses to adjectives pronounced in happy and angry intonations of varying emotional intensity. In separate sessions, participants judged the emotional valence of either intonation or semantics. To disentangle effects of emotional prosodic intensity from confounding acoustic parameters, mean and variability of volume an...
In bolus-tracking MRI, a bolus of paramagnetic tracer is injected intravenously, and the signal changes induced by the tracer are measured in an organ-of-interest using a fast dynamic imaging sequence [1]. The objective is to measure hemodynamic properties of body tissue. For this purpose, two signal-time curves must be measured: one inside the feeding artery (the arterial input function AIF), ...
Background: Studies on hemodynamic changes in brain death are in vitro and in animal studies. And very few studies have been done on the hemodynamic changes of brain death. The aim of this study was to use advanced hemodynamic monitoring with echocardiography for evaluation of donated heart and to evaluate the moment by moment brain death patients with advanced hemodynamic monitoring tools and ...
BACKGROUND Monitoring central hemodynamic responses to an orthostatic challenge may provide important insight into autonomic nervous system function. Oscillometric pulse wave analysis devices have recently emerged, presenting clinically viable options for investigating central hemodynamic properties. The purpose of the current study was to determine whether oscillometric pulse wave analysis can...
context the occurrence of intradialytic hypotension (idh) during hemodialysis (hd) continues to be a main problem in patients with esrd (end-stage kidney disease). it also negatively affects health-related quality of life. we aimed to determine vasopressin effect in decreasing idh. evidence acquisition we reviewed clinical and experimental literature in a variety of sources, including pubmed, c...
Objective(s): Cardiovascular disease has an important role in mortality caused by lung injury. Emphysema is associated with impaired pulmonary gas exchange efficiency and airflow limitation associated with small airway inflammation. The aim was to evaluate the interactions between lung injury, inflammation, and cardiovascular disease. Since gallic acid has antioxidant ...
Background: Tracheal intubation and direct laryngoscopy are powerful noxious stimuli that can elicit sever hemodynamic responses. These hemodynamic responses should be attenuated by appropriate use of premedication, smooth induction of anesthesia and rapid tracheal intubation. Gabapentin and pregabalin have been suggested in several studies to be efficient. Gabapentin is an antiepileptic drug a...
Introduction: One of the most common problems during laryngoscopy involves sympathetic system stimulation and the subsequent hemodynamic changes. It is a key measure to maintain the hemodynamic stability of patients with cardiovascular diseases during induction of anesthesia. This study attempted to compare the hemodynamic effects of laryngeal mask airway and combitube. Methods: This prospec...
Background: Today, coronary artery bypass graft surgery (CABG) in many patients is commonly used to treat complications of the disease. Aim: This study aimed to evaluate the impact of cardiac rehabilitation on hemodynamic parameters in patients undergoing CABG. Methods: : In this clinical trial which was conducted in Rajaee Hospital of Tehran University of Medical Sciences 100 patients after co...
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