Articles: intubation.
-
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.
-
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.
-
Acta Anaesthesiol Scand · May 1991
Randomized Controlled Trial Clinical TrialHaemodynamic responses and prolongation of QT interval of ECG after suxamethonium-facilitated intubation during anaesthetic induction in children: a dose-related attenuation by alfentanil.
The haemodynamic response to endotracheal intubation and changes in the QT interval of ECG during anaesthetic induction were studied in 68 healthy children (5.5 years). The children were pretreated double-blindly with either alfentanil 10 micrograms/kg (A10), 25 micrograms/kg (A25), 50 micrograms/kg (A50) or saline (control) (17 children in each group) i.v. 1 min before thiopentone 5 mg/kg. The trachea was intubated after suxamethonium 1.5 mg/kg. ⋯ The QT interval was significantly prolonged after suxamethonium in the control and A10 groups, but remained at baseline levels in the A25 and A50 groups. Ventricular ectopic beats were only seen in 2/17 children in the control group. In conclusion, alfentanil 25 microgram/kg is ideal for preventing the haemodynamic response to endotracheal intubation and prolongation of the QT interval, a sign of sympathoadrenal activation, before induction of intravenous anaesthesia in children.
-
Acta Anaesthesiol Scand · May 1991
Randomized Controlled Trial Comparative Study Clinical TrialTracheal intubation after induction of anaesthesia with thiopentone or propofol without muscle relaxants.
This study was designed to compare the ease of performing laryngoscopy and endotracheal intubation without muscle relaxants after the induction of anaesthesia with either thiopentone or propofol in 106 patients scheduled for elective surgery. Thiopentone (5 mg/kg) or propofol (2.5 mg/kg), supplemented with lidocaine (1.5 mg/kg) and alfentanil (30 micrograms/kg), were used in random order for the induction of anaesthesia. ⋯ Visualisation of the larynx was good in 60 and 46% and intubation was easy in 48 and 22% of the patients given thiopentone and propofol, respectively (P less than 0.05 between groups for intubation). After induction of anaesthesia with thiopentone or propofol, endotracheal intubation is not recommended without the use of muscle relaxants.
-
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).