Articles: intubation.
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Rev Esp Anestesiol Reanim · May 1991
Randomized Controlled Trial Comparative Study Clinical Trial[Cardiovascular response to orotracheal intubation using midazolam or etomidate in anesthesia induction].
By means of the present study, we compare the variations in the cardiovascular response to the orotracheal intubation while using midazolam or etomidate during the anesthetic induction. For this purpose, we studied 2 groups of 10 patients each one which were premedicated with fentanyl and atropine, and succinylcholine as muscle relaxant. We took the data at a basal state, 10 minutes after premedication and 0, 1, 2, 3, 4, 5 and 10 minutes after the intubation handling. ⋯ In both groups, the peak response occurred two minutes after intubation in all the studied parameters. Systolic and diastolic blood pressure as well as PRP were significantly lower with midazolam. We conclude that midazolam and etomidate do not prevent the cardiovascular response to the intubation handling, although midazolam smooths pressure response.
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Randomized Controlled Trial Comparative Study Clinical Trial
Comparison of two methods of fibrescope-guided tracheal intubation.
We have compared intubation time and cardiovascular effects of fibrescope-guided orotracheal intubation aided by the Berman 11 Intubating Airway with those of the tongue traction method of fibreoptic intubation and with conventional Macintosh intubation. We studied 75 patients who received a standard general anaesthetic which included non-depolarizing neuromuscular block; they were allocated randomly to one of the three groups immediately before intubation. ⋯ There were no significant differences between the responses to the two fibreoptic techniques. Haemodynamic effects should be considered when performing fibrescope-guided tracheal intubation under general anaesthesia and, when necessary, appropriate measures should be taken to minimize them.
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Comparative Study
Comparison of orthodox with fibreoptic orotracheal intubation under total i.v. anaesthesia.
Fibreoptic orotracheal intubation was compared with orthodox laryngoscopy and tracheal intubation using a total i.v. technique with propofol in 60 ASA I and II patients. There was no significant difference between the two techniques in haemodynamic profile (before, during and following the intubation procedure) and incidence of postoperative sore throat. Minimal oxygen saturation was 96% during the study; maximal end-tidal PCO2 after intubation was 5.4 kPa. Intubation time was faster (P less than 0.01) in the orthodox group (30.7 (SEM 2.3) s) than in the fibreoptic group (52.7 (4.8) s).
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A tube for bronchial intubation is described. A long (48 cm), small bore (5.0 mm internal diameter), cuffed, bronchial plastic tube is inserted coaxially within a large bore tracheal tube (10.0 mm) used for ventilation. ⋯ If the bronchial cuff is inflated the tube can be used either as a blocker or as a conduit for suction and conventional and differential ventilatory techniques. Early clinical experience suggests that the technique is an alternative method of facilitating one-lung ventilation.