Canadian journal of anaesthesia = Journal canadien d'anesthésie
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Randomized Controlled Trial Clinical Trial
Laryngeal mask insertion with a laryngoscope in paediatric patients.
To assess epiglottic position after laryngeal mask airway (LMA) insertion with or without the use of a laryngoscope. ⋯ This technique offers an alternative when the standard technique has failed, or when LMA insertion precedes bronchoscopy or intubation via the laryngeal mask.
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To investigate cuff types for potential use in late childhood and early adolescence for appropriate fit. ⋯ Patients aged 8 to 10 yr have a limiting internal diameter at the cricoid of 8 to 10 mm. Their unstretched tracheal diameter below the cricoid is only about 11 mm. The actual outside diameters of "low pressure" cuffs chosen by commonly used formulae considerably exceed the limiting diameters of eight to ten year old patients, even considering recommended compensation factors. Analysis of background data indicates that these problems are especially aggravated at this age by non-linear growth of the cricoid.
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To determine the composition and solubility of the precipitate formed by thiopentone and vecuronium in vitro. ⋯ The precipitate formed by thiopentone and vecuronium in vitro consisted of thiopentone acid, which was insoluble in human plasma.