نتایج جستجو برای: ventilation
تعداد نتایج: 47711 فیلتر نتایج به سال:
Introduction: Adherence to the design values and ventilation standards (VS) after installing and also maintaining continuous work of ventilation system with maximum performance throughout its life are amongst the reasons of ventilation systems monitoring. Therefore, the aim of this study was to evaluate performance of local exhaust ventilation system for control of dust by measuring the operati...
introduction:guillain-barre syndrome(gbs) is the most common cause of acute flaccid paralysis. respiratory failure is the most serious short-term complication of gbs and invasive mechanical ventilation is required in 30% of patients.moreover,60% of those who are intubated develop major complications including pnemonia,sepsis,gi bleeding and pulmonary embolism. thus respiratory failure predictio...
conclusions patients with chronic hepatitis c and with a ciscun ≤ 1 had a very low rate of cirrhosis while those with a ciscun = 4 had a high risk of cirrhosis. patients with ciscun = 2 or 3 had an intermediate rate of cirrhosis, and therefore needed to perform a liver biopsy to receive a reliable diagnosis. results we enrolled 249 patients who had complete laboratoristic data, and sufficient l...
background: ventilator-associated pneumonia (vap) is the most prevalent and lethal form of nosocomial infections in the icu and oral disinfection is a nursing measure to prevent this condition. aim: this study aimed to evaluate the effect of oronasal versus oral disinfections with chlorhexidine on the clinical criteria for diagnosis of vap. method: this randomized clinical trial was conducted o...
in recent years, biosurfactants due to wide applications in chemical, petroleum, food andpharmaceutical industries, have been widely considered by researchers. biosurfactants are produced by aseries of microorganisms, so it is important to screen culture medium and operating conditions in miniaturized bioreactors prior to scaling up to large bioreactors.in this study, using a kind of miniaturiz...
conclusions the results of this study indicated that pmv predictors could be specific for each center and a good administration program is needed for each pediatric cardiac surgery center for the preoperative management of patients undergoing congenital heart surgeries. results a total of 300 patients, 56.7% male, were enrolled in this study. their mean age was 32 ± 40 months .the median durati...
background extraperitoneal laparoscopy has become a common technique for many surgical procedures, especially for inguinal hernia surgery. investigations of physiological changes occurring during extraperitoneal carbon dioxide (co2) insufflation mostly focused on blood gas changes. to date, the impact of extraperitoneal co2 insufflation on respiratory mechanics remains unknown, whereas changes ...
results in the i-gel group, the success rate was 66.7% for placement on the first attempt, 16.7% for the second, and 3.33% for the third attempt. in the lma group, the success rates were 80.6% and 12.9% for the first and second attempts, respectively. failure in placement occurred in four cases in the i-gel and two cases in lma groups. the mean insertion time was not significantly different bet...
Efficiency of non-invasive positive pressure ventilation in the treatment of respiratory failure has been shown in many published studies. In this review article, we introduced new modalities of non-invasive ventilation (NIV), clinical settings in which NIV can be used and a practical summary of the latest official guidelines published by the European Respiratory Clinical Practice. Clinical tri...
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