Articles: intubation.
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The esophageal obturator airway (EOA) has been considered a beneficial ventilatory technique for use in cardiopulmonary resuscitation (CPR). At present, seven studies in the literature compare the EOA with other means of ventilation in humans; only one is an actual field study of its effectiveness. ⋯ There appears to be no current evidence of the EOA's effectiveness for ventilation in prehospital cardiac arrest, and fatal complications have been reported with its use. The use of the EOA to replace endotracheal intubation in airway management is not substantiated in the literature.
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The employment of a ventilator adds flexibility to the treatment of hypoventilation and hypoxia in the emergency department. Understanding the advantages of spontaneous respiration, the effects of positive pressure ventilation and the use of CMV, IMV, and PEEP allows for optimal care for emergency respiratory problems.
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Acta Anaesthesiol Scand · Aug 1983
The anatomical shape of the airway during endotracheal intubation.
The shape of the airway during endotracheal intubation was studied from lateral radiographs of patients lying supine on the operating table, with the neck in the normal, extended and flexed position. A computer programme calculated the anterior contour of the tube and the posterior contour of the airway as mean values of the original contours on the radiographs. The mean configuration of the airway in intubated individuals was then presented in a standard coordinate system. ⋯ Our results also showed that patients were routinely placed on the operating table with the head in an unnecessarily extended position. Such a position may partly obstruct the blood flow in the vertebral arteries. An improvement in operating table design is desirable to facilitate optimal positioning of the patient's head during routine surgery.