results the mean heart rate values were significantly less in the sevoflurane group (p value < 0.05) at 25 minutes after the surgery. the mean blood pressure in the isoflurane group was significantly higher compared with the sevoflurane group in 10, 20 and 30 minutes after the surgery (p values = 0.0131, 0.0373 and 0.0028, respectively). these differences were clinically unimportant because hea...

conclusions fentanyl and fentanyl plus lidocaine effectively decreased the hemodynamic response to tracheal intubation, however, neither fentanyl nor fentanyl plus lidocaine, could inhibit all hemodynamic responses, moreover fentanyl plus lidocaine was not more effective than fentanyl alone. background induction of anesthesia and endotracheal intubation often creates a period of hemodynamic ins...

objectives the aim of this study was to compare hemodynamic changes following endotracheal intubation with gvl and mdl in patients undergoing cesarean section by general anesthesia. materials and methods seventy patients undergoing elective cesarean section by general anesthesia requiring endotracheal intubation were randomly allocated to be intubated with either gvl (n = 35) or mdl (n = 35). s...

measurement of the stroke volume and its changes over time can be very helpful for diagnosis of dysfunctions in the blood circulatory system and monitoring their treatments. impedance cardiography (icg) is a simple method of measuring the stroke volume based on changes in the instantaneous mean impedanceof the thorax. this method has received much attention in the last two decades because it is...

Brain hemodynamics serve as a proxy for neural activity in a range of noninvasive neuroimaging techniques including functional magnetic resonance imaging (fMRI). In resting-state fMRI, hemodynamic fluctuations have been found to exhibit patterns of bilateral synchrony, with correlated regions inferred to have functional connectivity. However, the relationship between resting-state hemodynamics ...

Hemodynamics interacts with the cellular components of human vessels, influencing function and healthy status. Locally acting hemodynamic forces have been associated—by a steadily increasing amount scientific evidence—with nucleation evolution atherosclerotic plaques in several vascular regions, resulting formulation ‘hemodynamic risk hypothesis’ atherogenesis. At level coronary arteries, howev...

Two-dimensional laminar hemodynamics through a diseased artery featuring an overlapped stenosis was simulated theoretically and computationally. This study presented mathematical model for the unsteady blood flow with hybrid biocompatible nanoparticles (Silver Gold) inspired by drug delivery applications. A modified Tiwari-Das volume fraction adopted nanoscale effects. Motivated magneto-hemodyn...

Abstract Background Chronic renal failure is a common comorbidity in patients undergoing TAVI. Large amounts of contrast media are generally needed to safely perform TAVI with potential deleterious effects on function and long term life quality. Objectives Every step the procedure can be replaced by no techniques: ultrasound guided vascular puncture final check, alignement 3 guides Valsalva sin...

We present a computational model of three-dimensional and unsteady hemodynamics within the primary large arteries in the human on 1,572,864 cores of the IBM Blue Gene/Q. Models of large regions of the circulatory system are needed to study the impact of local factors on global hemodynamics and to inform next generation drug delivery mechanisms. The HARVEY code successfully addresses key challen...