Canadian journal of anaesthesia = Journal canadien d'anesthésie
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To observe the changes in permeability and elasticity in the cuff of the laryngeal mask airway (LMA) caused by repeated use. ⋯ The "safe" life-span of the cuff of the LMAs, measured by the initial modifications of the physical properties of the silicone during simulations, was estimated to be 80-100 uses and was related to the thickness of its wall.
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To evaluate the agreement between end-tidal carbon dioxide (PETCO2) and arterial CO2 (PaCO2) in patients with traumatic brain injury and to document the course of the (PaCO2-PETCO2) gradient over time. ⋯ In this selected population of patients with severe traumatic brain injury, measurements of PETCO2 and PaCO2 are not interchangeable. Further the PoCO2-PETCO2 gradient is not stable over time and cannot predict variations of PaCO2. The use of PETCO2 instead of PaCO2 could be deleterious in patients in whom strict control of PaCO2 values is required.
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Randomized Controlled Trial Clinical Trial
Metabolic, hormonal and gastric fluid and pH changes after different preoperative feeding regimens.
To evaluate the metabolic, hormonal and gastric fluid and pH changes after administration of a small volume of different preoperative feeding regimens. ⋯ Small volumes of fluid increased RGV (P < 0.05). Apple juice resulted in increased incidence of thirst and hunger and plasma glucose and norepinephrine concentrations. Compared with GFSM or apple juice, honey had a gentler effect on plasma glucose and insulin concentrations.
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Cardiothoracic surgeons and anesthesiologists have had a long-standing interest in the proper use of transfusion therapy for their patients. ⋯ Issues such as the cost of blood, limited availability and the potentially harmful effects of transfusion dictate continued research and the development of methods to appropriately minimize transfusion to patients having cardiac surgery.