نتایج جستجو برای: hemodynamic properties
تعداد نتایج: 900931 فیلتر نتایج به سال:
Background & Objective: The induction of anesthesia, laryngoscopy and endotracheal intubation can be associated with adverse hemodynamic response and increased intraocular pressure. The aim of this study was to evaluate intraocular pressure and hemodynamic changes after laryngoscopy and endotracheal intubation with three methods of laryngoscopy (Macintosh, Maccoy and Video laryngoscope).Materia...
Background: Electroconvulsive therapy (ECT) is a safe and practical treatment method for patients with severe, refractory or emergency psychiatric disorders. However, it is often associated with hemodynamic fluctuations. Objective: The purpose of this study was to investigate the pattern of hemodynamic changes in patients undergoing ECT. Methods: This longitudinal study was conducted at Sha...
let h be a separable hilbert space and let b be the set of bessel sequences in h. by using several interesting results in operator theory we study some topological properties of frames and riesz bases by constructing a banach space structure on b. the convergence of a sequence of elements in b is de_ned and we determine whether important properties of the sequence is preserved under the con...
heteropoly acids (hpa) and their salts have advantages as catalysts which make them both economically and environmentally attractive, strong br?nsted acidity, exhibiting fast reversible multi-electron redox transformations under rather mild conditions, very high solubility in polar solvents, fairly high thermal stability in the solid states, and efficient oxidizing ability, so that they are imp...
BACKGROUND The purpose of the current study was to define exercise-induced changes in indices of left ventricular (LV) systolic and diastolic properties in patients with chronic heart failure (HF), compare these changes in patients with HF and a reduced ejection fraction (EF) versus HF and a preserved EF, and compare the hemodynamic responses to activities of daily living with symptom-limited u...
fuzzy controllers are being used in various control schemes. the aim of this work was adjusting hemodialysis machine parameters utilizing a fuzzy logic controller (flc) so that patient’s hemodynamic condition remains stable during hemodialysis treatment. for this purpose a comprehensive mathematical model of the arterial pressure response during hemodialysis, including hemodynamic, osmotic, and...
BACKGROUND AND PURPOSE Due to limited information about aneurysm natural history, choosing the appropriate management strategy for an unruptured aneurysm is challenging. By comparing unruptured and ruptured cases, studies have identified a variety of aneurysm morphologic and hemodynamic properties as risk factors for rupture. In this study, we investigated changes in 4 ruptured aneurysms before...
BACKGROUND AND OBJECTIVES The use of alpha2-agonists to control heart rate and blood pressure, to attenuate hemodynamic responses to tracheal intubation and extubation and to reduce anesthetics requirement are already well established in the literature since clonidine introduction for therapeutic use. Dexmedetomidine, recently approved for clinical use, presents more alpha2-adrenergic receptors...
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