hypoxia is a major concern for human health. multiple new techniques were proposed for tissue oxygenation in different variety of patients.  clark jr. et al. presenting their article titled “fluorovent: a new perfluorocarbon for liquid ventilation”, at a symposium in neonatology, in 1995, described the scientific importance for perfluorocarbons which would be ideally suited for use in liquid ve...

conclusions treatment of neonatal respiratory failure with high rate mechanical ventilation may reduce some complications. results intraventricular hemorrhage (ivh) and air leak (e.g. pneumothorax) were less in hfppv group than conventional group (p = 0.012 and p = 0.038). the mean time needed for mechanical ventilation was lower in hfppv group, but this difference was not statistically signifi...

abstract background: right ventricular myocardial performance index (rvmpi) is a doppler–derived parameter of non-geometrical ventricular function that measures both systolic and diastolic functions of the right ventricle. the aim of this study is to compare prognostic value of rvmpi with global rv function in patients undergoing coronary artery bypass graft (cabg). methods: in a longitudinal s...

Background: Neonatal respiratory distress syndrome (NRDS), a life-threatening pulmonary disorder, involves 1% of all deliveries worldwide. Shallow breathing causes restlessness in infants, which itself affects pulmonary function; thus, sedative medications are used to preserve better pulmonary function. There are different opinions about the benefits and superiority of these dr...

Background: Humidified heated high flow nasal cannula (HHHFNC), nasal continuous positive airway pressure (NCPAP), and nasal intermittent positive pressure ventilation (NIPPV) are three nasal non-invasive ventilation methods. The purpose of this study was to compare these three methods in decreasing intubation and mechanical ventilation rate in preterm neonates with respiratory distress syndrom...

 Abstract Background: Right ventricular myocardial performance index (RVMPI) is a Doppler–derived parameter of non-geometrical ventricular function that measures both systolic and diastolic functions of the right ventricle. The aim of this study is to compare prognostic value of RVMPI with global RV function in patients undergoing Coronary Artery Bypass Graft (CABG). Methods: In a longitudinal ...

the main objective of a research program, whose output is presented here, has been to estimate “ventilation coefficients”, a critical parameter in determining air pollution concentration near the surface ground which signifies the ability for natural ventilation of an air shed in an urban or rural area. relevant measured data from the city of tehran has been used to calibrate and further de...

background: according to the high prevalence of vitamin d deficiency, a few studies have been conducted to clarify the relationship between 25?hydroxyvitamin d (25(oh)d) and clinical outcomes in critically ill patients. the objective of this study was to determine this probable association. materials and methods: serum 25(oh)d, c?reactive protein, malnutrition measurements, and intensive care u...