Evaluation of the intratidal compliance profile at different PEEP levels in children with healthy lungs: a prospective, crossover study

British Journal of Anaesthesia
Ji-Hyun LeeJin-Tae Kim

Abstract

Optimal intraoperative lung protective ventilation (LPV) strategies in young children are largely under-explored. Individualised PEEP levels are likely to contribute to optimal lung protection. We determined optimal PEEP levels in young children during general anaesthesia by evaluating changes in intratidal compliance with varying PEEP. Children aged ≤6 yr were enrolled in this prospective interventional study. After induction of general anaesthesia and neuromuscular block (rocuronium), children were randomly assigned to be mechanically ventilated at each of three PEEP levels for 15 min each: 5, 8, and 12 cm H2O PEEP (PEEP5/8/12). Haemodynamic and respiratory data were recorded at each PEEP level. Intratidal volume-compliance was classified into one of six compliance profiles (increasing/decreasing/horizontal [plateau]/increasing-horizontal/horizontal-decreasing/increasing-horizontal-decreasing) at each PEEP level. The primary outcome was intratidal compliance at different PEEP levels. Forty-seven children were enrolled (40% female; median age: 2.5 yr [0.9-3.7]). Mean airway pressure progressively increased from 7.6 cm H2O (0.5) at PEEP5, 10.5 cm H2O (0.9) at PEEP8 to 14.3 cm H2O (0.5) PEEP12 (P<0.001). Mean driving pressure wa...Continue Reading

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Citations

Apr 24, 2021·British Journal of Anaesthesia·Simon T VistisenThomas W L Scheeren

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