Anaesthesia
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Randomized Controlled Trial Comparative Study
A randomised comparison of lidocaine 2% gel and proparacaine 0.5% eye drops in paediatric squint surgery.
We conducted a randomised trial comparing lidocaine 2% gel with proparacaine 0.5% eye drops in children having elective squint surgery. One hundred and forty children aged between 3 and 14 years were recruited. ⋯ There were no differences between the groups in terms of incidence and severity of the oculocardiac reflex. We conclude that, compared with proparacaine 0.5% eye drops, a single application of lidocaine 2% gel improves peri-operative analgesia and reduces the incidence of postoperative nausea and vomiting in elective paediatric squint surgery.
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Comparative Study
Comparison of blind and electrically guided tracheal needle insertion in human cadavers.
The purpose of this study was to investigate whether an electrically guided needle insertion technique would enable greater success at intratracheal needle tip insertion than the traditional, aspiration-of-air technique. Twenty-seven anaesthesiology residents were assessed in their ability to place a needle tip in the trachea of cadavers using the two methods. ⋯ For the instances of success, there was no significant difference between the two methods in the median (IQR [range]) time taken (28 (24-49 [18-63]) s aspiration vs 32 (19-49 [15-84]) s electrical; p=0.93). The electrically guided method provides an acceptably quick and accurate way of placing a needle tip into the tracheal lumen and can be learnt easily by anaesthesiology residents.