نتایج جستجو برای: industrial ventilation
تعداد نتایج: 194208 فیلتر نتایج به سال:
conclusions we found that 0.3 mcg/kg of sufentanil attenuates cardiovascular responses to double-lumen endobronchial intubation without adverse effects. background sufentanil is a potent opioid analgesic frequently used in clinical anesthesia. double-lumen endobronchial intubation induces profound cardiovascular responses in comparison with ordinary endotracheal intubation because of the larger...
background endotracheal suctioning is a necessary procedure practiced by nurses in intensive care units to remove lung secretions. this procedure leads to higher oxygenation levels and reduced breathing difficulties. it also prevents atelectasis, pulmonary infections, and the accumulation of secretions. objectives the present study aims to compare the effectiveness of open and closed endotrache...
conclusions this report presents a new method for lung isolation in specific cases and in the absence of certain equipment. case presentation a 41-year-old woman with a history of pharyngo-laryngo-oesophagectomy (plo) and tracheostomy was a candidate for thoracic duct ligation because of chylothorax. since the patient had tracheostmy stomal stenosis, two cuffed tracheal tubes (internal diameter...
Background: Respiratory distress syndrome (RDS) is a medical emergency in infants resulting from a lack of or deficiency in surfactant, and leads to pulmonary failure. Surfactant and mechanical ventilation are among the primary treatments for helping infants with respiration. Some sedative drugs, such as benzodiazepines and opioids, are used to reduce stress and restlessness in...
Introduction: Ventilator-associated pneumonia (VAP) is one of the most important complications of mechanical ventilation and cause of mortality in traumatic patients under mechanical ventilation admitted in the ICU (intensive care unit). The aim of current study was comparing sedationreceived as bolus and infusion at incidence of VAP in intubated traumatic patients in the ICU. Methods:...
Background & Aims of the Study: Welder’s exposure to welding fumes can cause occupational diseases. The current study sought to examine exposure to welding fumes among welders who work in the repair shop of Sarcheshmeh Copper Complex and design a local exhaust ventilation system to control exposure to welding fumes. Materials & Methods: This applied analytical study was co...
The natural ventilation is an easy way to exchange the indoor polluted warm air with outdoor fresh air. The wind power injects outdoor fresh air into the building. A good indoor air current and subsequently a proper exhaust depend on the openings’ conditions and their situations. A serious architectural question is under what conditions of the openings the wind-cross ventilation can be effectiv...
Background & Aims: Elimination of carbon dioxide is related to the alveolar ventilation, respiratory rate and tidal volume. The aim of this study to determine the effect of mechanical ventilation with different tidal volumes and constant minute ventilation on the end tidal Co2 and oxygen saturation during general anesthesia and to seek optimum parameters of mechanical ventilation during gener...
Background Many neonates admitted to Neonatal Intensive Care Unit (NICU) need mechanical ventilation for recovery. This study was designed to evaluate the short-term outcome of mechanically ventilated neonates admitted to NICU. <span style="fon...
Energy consumption based on the building heating, ventilation, and air-conditioning (HVAC) systems is sharply rising daily. At this point, heat recovery ventilation save energy while contributing to indoor air quality thermal comfort. This work mainly focuses designing air-to-air cross-flow exchanger system duct lines. First, ducts, bends, vents, unit are placed around selected domain complying...
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