نتایج جستجو برای: arterial blood pressure
تعداد نتایج: 1032462 فیلتر نتایج به سال:
SUMMARY: Coarctation of the aorta is a congenital heart disease consisting 7% of total congenital heart diseases. Its prevalence in men is 2 times more than that in women. This disease is associated with other congenital diseases. including aortic bicuspid valve, the linkage between two ventricles and arteriole channel It is often seen in the Turner syndrome which may lead to complications su...
The influence of the sympathetic nervous system on the cerebral circulatory response to graded reductions in mean arterial blood pressure was studied in anesthetized baboons. Cerebral blood flow was measured by the 133Xe clearance method, and arterial blood pressure was decreased by controlled hemorrhage. In normal baboons, the constancy of cerebral blood flow was maintained until mean arterial...
Background: Direct monitoring of arterial pressure using a transducer system is not affordable in most operating rooms and ICU wards in Iran. It is, however, possible to use an aneroid manometer instead, but it is not standardized yet, nor studied enough and its measurements may not be interpretable. Methods: To study the correlation of the arterial pressure readings between a manometer and a ...
Introduction: Intensive care unit is one of stressful wards for patients and stress creates some alterations in physiologic indicators of patients. So it is necessary to use a low expense and comforting method to stabilize physiologic indicators. The purpose of the present research is to determine the effect of foot massage on physiologic indicators including pulse, respiration, mean arterial p...
BACKGROUND Sampler filling time begins with the initial flash of blood in the needle hub until the preset sampler volume is obtained. Previous studies have shown statistically significant differences between arterial and venous sampler filling times, but included only a few subjects with abnormal blood pressures. OBJECTIVE To determine whether the time required to fill a vented arterial sampl...
the purpose of this research is to numerically investigate the interaction of pulsatile flow of blood with an axisymmetric artery in various percentages of stenosis. the carreau non-newtonian model and the generalized maxwell rheological model were used to model the blood fluid and the viscoelastic wall of arterial, respectively. the innovation of the present research is modeling of viscoelasti...
The most common method of clinical measurement of arterial blood pressure is by means of the cuff sphygmomanometer. This instrument has provided fundamental quantitative information on arterial pressure in individual subjects and in populations and facilitated estimation of cardiovascular risk related to levels of blood pressure obtained from the brachial cuff. Although the measurement is taken...
Considering the growing trend of laryngeal surgeries and the need to protect the airway during and after surgery, among several therapeutic regimens to induce sedation, two regimens of propofol-fentanyl and propofol-midazolam were compared in microlaryngeal surgeries. Forty ASA I-II class patients undergoing microlaryngeal surgeries and referring routinely for postoperative visits were randomly...
Arterial pulse pressure has been widely used as surrogate of stroke volume, for example, in the guidance of fluid therapy. However, recent experimental investigations suggest that arterial pulse pressure is not linearly proportional to stroke volume. However, mechanisms underlying the relation between the two have not been clearly understood. The goal of this study was to elucidate how arterial...
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