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Airway management is crucial part of the anaesthesia. There is always a considerable risk of complications or even failure during the anaesthesia induction and airway management. The risk could be greater considering anaesthesia in children and neonates because of their anatomical and physiological differences. Children and neonates are more susceptible to hypoxia and bradycardia during induction of anaesthesia, this risk is even greater during the rapid sequence induction/intubation (RSI), in which there is an apnoeic pause because of the absence of manual ventilation. Because of the pause it is necessary to provide enough oxygen in advance during preoxygenation. The aim of this trial is to compare providing oxygen by face-mask and by high-flow nasal oxygen cannula. Another outcome is to evalute the safety profile RSI in children and neonates.
Full description
All patients requiring an acute surgery and rapid sequence induction/intubation will be checked for eligibility criteria and then an informed consent will be obtained. Afterwards, randomization will take place, which will divide a patient into one of three groups: 1) RSI + face-mask preoxygenation, 2) RSI + high-flow nasal oxygen cannula (HFNOC) preoxygenation and 3) RSI + face-mask and HFNOC preoxygenation.
The demographic data, type of surgery and vital signs will be observed. Primary outcomes will be the impact of HFNOC preoxygenation on oxygen saturation by pulse oximetry (SpO2) and heart rate during the induction of anaesthesia. Secondary outcomes will be safety of the RSI protocol, Cormack-Lehane score, incidence of difficult airway management, number of the intubation attempts and episodes of regurgitation/aspiration.
RSI will be done according to our protocol. Initially, equipment will be checked and an i.v. line will be checked/started and then a bolus of ketamine will be given (0,2-0,5 mg/kg intravenously,) for the face-mask/HFNOC tolerance and the table will be tilted to anti-Trendelenburg position. In case of difficult or unable of intravenous line insertion, intramuscular bolus of ketamin (1-3mg/kg i.m.) could be used prior to another attempt. Afterward, the preoxygenation will start according to the randomization result - group 1) face-mask preoxygenation (flow 2 L/kg/minute, max 6 L/minute), group 2) HFNOC preoxygenation (flow 2 L/kg/minute, max 6 L/minute) and group 3) HFNOC (flow 2 L/kg/minute) + face-mask preoxygenation (flow 2 L/kg/minute, max 6 L/minute) - with 100 % oxygen for three minutes. Then a bolus of anaesthetic and myorelaxant agent will be given (propofol 2,5 mg/kg in haemodynamically stable, ketamine in haemodynamically unstable and rocuronium 1 mg/kg or suxamethonium 1,5 mg/kg if sugammadex bolus was given in last 24 hours). The neuromuscular blockade will be monitored, first intubation attempt will start as soon as single twitch will be bellow 10 % or train-of-four (TOF) bellow 1 or after 60 seconds, whichever comes first. After that, the first intubation attempt will take place, a video laryngoscopy will be used and Cormack-Lehane score will be documented photographically. The attempt will end either by successful intubation with monitored capnography wave or by failure.
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120 participants in 3 patient groups
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Central trial contact
Jozef Klučka, assoc.Prof.MD, Ph.D; Dominik Fabian, MD
Data sourced from clinicaltrials.gov
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