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  • Title: [Sevoflurane-N2O inhalation anaesthesia with laryngeal mask airway and propofol-ketamine intravenous anaesthesia in strabismus surgery].
    Author: Liu Y, Zeng QY.
    Journal: Zhong Nan Da Xue Xue Bao Yi Xue Ban; 2006 Feb; 31(1):97-9. PubMed ID: 16562686.
    Abstract:
    OBJECTIVE: To investigate the advantages and disadvantages of sevoflurane-N2O inhalation anesthesia with laryngeal mask airway (LMA) and propofolketamine total intravenous anaesthesia in children undertaking strabismus surgery. METHODS: Eighty children undertaking strabismus surgery were randomly divided into sevoflurane-N2O inhalation anaesthesia group with LMA (volatile group, n=40) and propofol-ketamine total intravenous anesthesia group (TIVA group, n=40). LMA was used to secure respiratory airway in the volatile group, but LMA or endotracheal intubation was not used in the TIVA group. All children breathed spontaneously during operative period. The anesthesia was maintained with 2%-3% sevoflurane-50% N2O-50% O2 in the volatile group, and continuous intravenous infusion with propofol 5-10 mg/(kg x h) plus ketamine 1-2 mg/(kg x h) in the TIVA group. The incidence of SpO2 less than 95% and the movement of the limbs and head induced by operative stimulation, oculocardiac reflex (OCR) and postoperative vomiting (POV) were recorded in all children. RESULTS: The incidence of limbs and head movement, the incidence of SpO2 less than 95% and OCR were significantly lower in the volatile group than those in the TIVA group (P < 0.01); but the incidence of POV was significantly higher in the volatile group than that in the TIVA group (P < 0.01). CONCLUSION: Sevoflurane-N2O-O2 anesthesia with LMA can secure respiratory airway of patients, avoid hypoxemia, and have good anesthetic quality and low OCR incidence. It is a new anesthesia method with more advantages in children undertaking strabismus surgery, but the prevention and treatment of POV must be noticed.
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