Articles: intubation.
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This study was designed to determine if induction of anaesthesia with etomidate titrated to an early EEG burst suppression pattern would produce minimal changes in cerebral perfusion pressure, and prevent increases in intracranial pressure (ICP) associated with tracheal intubation. Eight patients, 18-71 yr, with intracranial space-occupying lesions, were studied. In each patient ICP was monitored via a lateral ventriculostomy catheter placed preoperatively. ⋯ Compared with awake control values (mean +/- SE), the period from induction to burst suppression was associated with a 50% decrease in ICP (22 +/- 1 vs 11 +/- 1 mmHg, P less than 0.01), but there were no changes in MAP, CPP, or HR. The decrease in ICP was maintained during the first 30 sec and the following 60 sec after intubation as MAP and HR remained unchanged. Our results suggest that when etomidate was administered to early burst suppression pattern on EEG, minimal changes in CPP occurred during induction of anaesthesia and a marked reduction in ICP was maintained following tracheal intubation.
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A 5-year retrospective review of airway management by flight nurses was conducted to evaluate airway care and to determine the frequency of surgical cricothyrotomy. Intubation was attempted in 51% of patients, with a success rate of 80%. ⋯ Overall, 87% of patients were successfully intubated and surgical cricothyrotomy was required in only one patient. A greater success rate was achieved when intubations were performed before takeoff than during flight.
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Review Case Reports
Management of a severed endotracheal tube during LeFort osteotomy.
An unusual but serious case in which the endotracheal tube was severed during LeFort osteotomy is presented. The aspects of the surgery that can create this problem are reviewed. Past literature is reviewed, and various procedures for the management of this problem, including the plan followed in this case, are discussed.
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Multicenter Study Comparative Study Clinical Trial Controlled Clinical Trial
A field comparison of the pharyngeotracheal lumen airway and the endotracheal tube.
A prospective, sequential study compared ease of use and bag-valve ventilation delivered by an endotracheal tube (ET) with that of the pharyngeotracheal lumen airway (PtL) for 111 victims of cardiac arrest in the pre-hospital setting. The PtL airway was found to be significantly easier to use as measured by the time required to intubate the patient and the number of attempts to place the device. Arterial blood gas determinations were made on arrival at the hospital and repeated 15 minutes later. ⋯ No adverse effects were reported. We conclude that the ability of the PtL to deliver effective ventilation is comparable with that of the ET as measured by arterial PCO2. When the ET method of airway control cannot be achieved, the PtL airway offers an effective alternative.
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Endoesophageal prostheses are sometimes used in palliative therapy of esophageal carcinoma. Placement or subsequent manipulation of these devices may require general anesthesia, and these anesthetics are fraught with potential complications, both from the patient's illness and from the prosthesis itself. The two patients in our report presented anesthetic challenges, including acute upper airway obstruction occurring outside the operating theater and management of malignant tracheoesophageal fistula.