Articles: intubation.
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Southern medical journal · Nov 1981
Case ReportsNasotracheal intubation by fiberoptic laryngoscope.
We have presented a case in which the fiberoptic laryngoscope was used for nasotracheal intubation, an alternative for the difficult laryngoscopy. We believe regional blocks combined with extensive topical anesthesia aid in the successful use of the fiberoptic laryngoscope for cases of difficult intubation in the practice of oral surgery. We were unable to obtain a complete sensory block with benzocaine or lidocaine spray since the mouth opening was less tha 1 mm. The bilateral superior laryngeal nerve block is a valuable adjunct to the procedure.
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Comparative Study
Effects of nitrous oxide and oxygen on tracheal tube cuff gas volumes.
The changes in the volume of the cuffs of 200 air-inflated tracheal tubes were studied on exposure to 70% nitrous oxide and 30% oxygen. The length of the cuff, its diameter, wall thickness and residual volume were measured. ⋯ The tracheal tubes with low-pressure cuffs were more permeable to nitrous oxide and oxygen than those with high-pressure cuffs. Implications of these findings and the factors which govern the transmission rates of gases through cuff material are discussed.
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Acta Anaesthesiol Scand · Oct 1981
Randomized Controlled Trial Clinical TrialEffects of precurarization on the blood pressure and heart rate changes induced by suxamethonium facilitated laryngoscopy and intubation.
The effects of precurarization on blood pressure and heart rate increases during laryngoscopy and intubation were studied in 60 surgical patients, who were randomly allocated to four groups, receiving as a pretreatment d-tubocurarine (0.05 mg/kg), alcuronium (0.03 mk/kg) , pancuronium (0.008 mg/kg) or saline in a double-blind fashion. d-Tubocurarine and alcuronium pretreatments seemed to attenuate the blood pressure increase during laryngoscopy and intubation under suxamethonium. Moreover, d-tubocurarine pretreatment protected effectively against high blood-pressure increases. Heart-rate increases were of the same magnitude in all the pretreated groups. d-Tubocurarine pretreatment abolished suxamethonium-induced fasciculations completely, whereas alcuronium pretreatment gave protection in 93% and pancuronium pretreatment in 43% of patients.