European journal of anaesthesiology
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The reported incidence of paediatric perioperative cardiac arrest (PPOCA) in most developing countries ranges from 2.7 to 22.9 per 10 000 anaesthetics, resulting in mortality rates of 2.0 to 10.7 per 10 000 anaesthetics. The definitions of 'peri-operative' cardiac arrest often include the intra-operative period and extends from 60 min to 48 h after anaesthesia completion. However, the characteristics of cardiac arrests, care settings, and resuscitation quality may differ between intra-operative and early postoperative cardiac arrests. ⋯ Postoperative cardiac arrest resulted in a higher mortality rate than intra-operative cardiac arrest. A high level of care should be provided for at least 24 h after the completion of anaesthesia.
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Randomized Controlled Trial
Effect of transnasal humidified rapid-insufflation ventilatory exchange on gastric insufflation during anaesthesia induction: A randomised controlled trial and multivariate analysis.
Mask ventilation during anaesthesia induction is generally used to provide adequate oxygenation but improper mask ventilation can result in gastric insufflation. It has been reported that oxygen administered by transnasal humidified rapid-insufflation ventilatory exchange (THRIVE) during anaesthesia induction can maintain oxygenation but its effect on gastric insufflation is unknown. ⋯ During anaesthesia induction, the THRIVE technique provided adequate oxygenation with a reduced incidence of gastric insufflation. PCFV, advancing age, obstructive sleep apnoea syndrome and the Mallampati score were found to be independent risk factors for gastric insufflation during anaesthesia induction.
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Randomized Controlled Trial
Variable ventilation versus stepwise lung recruitment manoeuvres for lung recruitment: A comparative study in an experimental model of atelectasis.
Variable ventilation recruits alveoli in atelectatic lungs, but it is unknown how it compares with conventional recruitment manoeuvres. ⋯ In this model of lung atelectasis, variable ventilation and stepwise recruitment manoeuvres effectively recruited lungs, but only variable ventilation did not adversely affect haemodynamics.
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Genetic risk factors for chronic postsurgical pain in adults have been established, but little is known whether the same associations exist in children. It is even less clear how much influence single nucleotide polymorphisms can exert on the phenotypic expression of chronic postsurgical pain in children in general. To this effect, a search was made for original articles which met the following criteria: evaluation of postsurgical pain in children with known genetic mutations or, conversely, evaluation of atypical pain trajectories of postsurgical children assessing for possible genetic mutations that may explain the phenotype. ⋯ Overall, there is a paucity of information regarding the link between genetic mutations and eventual chronic postsurgical pain development although there is some information on acute postoperative pain. Evidence has shown that the contribution of genetic risk factors to chronic postsurgical pain development appears to be minor, with its clinical relevance yet to be described. More advanced techniques in systems biology (proteomics, transcriptomics) suggest promising avenues for investigating the disease.
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Observational Study
Alveolar target ventilation and dead space in children under anaesthesia: The proventiped cohort study.
Ventilator settings in children under anaesthesia remain difficult because of the changes in the physiology and the high dead space. ⋯ Total dead space volume (including apparatus dead space) represents a major component of tidal volume in children less than 30 kg, when using large heat and moisture exchanger filters. The total minute ventilation necessary to achieve normocapnia decreased with increasing weight, while the alveolar minute ventilation remained constant.