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1.
Paediatr Anaesth ; 28(9): 774-779, 2018 09.
Article in English | MEDLINE | ID: mdl-30004609

ABSTRACT

BACKGROUND: Most anesthetic ventilators are designed to cope with a wide range of patient sizes and may lack precision at the lowest end of the minute volume scale. Neonatal intensive care ventilators on the other hand are designed specifically for this patient group, but are not able to deliver volatile anesthesia. AIMS: We aimed to adapt the neonatal ventilator currently in use in our institution to deliver sevoflurane by incorporating a vaporizer and a scavenging system. METHODS: We used a Diamedica draw-over vaporizer incorporated into the ventilator circuit and a custom designed open interface scavenging system. A number of safety measures are described to ensure that this equipment is correctly inserted into the circuit. RESULTS: Bench testing revealed that the vaporizer output is linear and stable within the circuit flow range 4-8 L/min in all modes except high frequency oscillation where concentrations are not predictable. The scavenging system was found to be effective and did not affect volumes, pressures or waveforms when ventilating a test lung over a wide range of flows and pressures. This remained the case over the full range of scavenger flow adjustment. CONCLUSION: The addition of a Diamedica vaporizer to a Fabian neonatal ventilator was shown in bench testing to provide stable, linear vapor concentrations without compromise of ventilator function. The system should not be used in high frequency oscillation mode because concentrations will exceed those expected and will not maintain a linear relationship with the vaporizer setting.


Subject(s)
Anesthesia, Inhalation/instrumentation , Nebulizers and Vaporizers , Sevoflurane/administration & dosage , Ventilators, Mechanical , Anesthetics, Inhalation/administration & dosage , Equipment Design/instrumentation , Gas Scavengers , Humans , Infant, Newborn , Volatilization
2.
Paediatr Anaesth ; 28(9): 813-814, 2018 09.
Article in English | MEDLINE | ID: mdl-30035342

ABSTRACT

We report the case of a boy with LPIN1 gene mutation presenting for adenotonsillectomy who was successfully managed with preoperative saline and glucose infusion followed by balanced anesthesia including sevoflurane. The anesthetic planning is described as there is no modern literature to guide the perioperative management of these children.


Subject(s)
Anesthesia, Inhalation/methods , Anesthetics, Inhalation/administration & dosage , Phosphatidate Phosphatase/genetics , Rhabdomyolysis/physiopathology , Tonsillectomy/methods , Child , Creatine Kinase/metabolism , Humans , Intraoperative Care , Male , Mutation , Phosphatidate Phosphatase/deficiency , Rhabdomyolysis/enzymology , Rhabdomyolysis/genetics , Risk Factors
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