Journal of oral and maxillofacial surgery : official journal of the American Association of Oral and Maxillofacial Surgeons
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J. Oral Maxillofac. Surg. · Oct 1985
Case ReportsLudwig's angina resulting from the infection of an oral malignancy.
A case of Ludwig's angina is reported in a 60-year-old woman who was discovered to have squamous-cell carcinoma of the tongue and floor of the mouth during intubation for airway management. This report emphasizes the need to consider infection of oral malignancies of the tongue and floor of the mouth in the etiology of Ludwig's angina when an odontogenous origin cannot be demonstrated. It also illustrates the value of bronchoscopy-directed nasotracheal intubation for diagnosis and airway management in such cases.
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J. Oral Maxillofac. Surg. · Aug 1985
Evaluation of rebreathing in various modifications of the Mapleson-D system.
Several modifications of the Bain system for nitrous oxide analgesia or general anesthesia were tested for rebreathing and retention of CO2. The classic Bain circuit causes the most rebreathing as measured by the fractional concentration of CO2 in a sample of inspired gas (FICO2), but stimulation of the respiratory system seems to allow near normal end tidal CO2 and arterial CO2 tensions. The most predictable systems that have the least amount of rebreathing are those that have the least dead space.
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J. Oral Maxillofac. Surg. · Nov 1984
Case ReportsBenzocaine-induced methemoglobinemia during general anesthesia.
A case is reported in which a patient developed cyanosis under general anesthesia due to methemoglobinemia. The cause of the methemoglobinemia was benzocaine applied topically to the pharynx and trachea. ⋯ If possible, determination of arterial blood gases should be made to obtain the methemoglobin concentration. Finally, all medical and dental personnel using benzocaine should be aware of the recommended dose and the possible complications of overdosage.
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J. Oral Maxillofac. Surg. · Oct 1984
Comparative StudySubanesthetic doses of ketamine, diazepam, and nitrous oxide for adult outpatient sedation.
The use of ketamine in adults has been complicated by untoward hallucinatory emergence reactions. The addition of nitrous oxide and diazepam to subanesthetic doses of ketamine may be effective in decreasing these reactions. ⋯ Comparison of the results of patients receiving ketamine and those receiving fentanyl revealed no statistical differences in hallucinatory reactions or patient acceptance. Amnesia was more complete in the ketamine than the fentanyl group.