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Title: Comparison of effectiveness between gas flow 1 and 2 L.Min<sup>-1</sup>for general anesthesia in infants and children
Authors: Suwannee Suraseranivongse
Sumitra Chowvanayotin
Sangsom Pirayavaraporn
Songyos Valairucha
Naiyana Arunpruksakul
Somsak Areewatana
Mahidol University
Keywords: Medicine
Issue Date: 1-Nov-2004
Citation: Journal of the Medical Association of Thailand. Vol.87, No.11 (2004), 1343-1348
Abstract: Objectives: To determine 1) Success rate of using fresh gas flow (FGF) 1 l.min-1compared to 2 l.min-1in pediatric patients 2) Necessity of using anesthetic agent analyzer 3) predicting volatile anesthetic concentration 4) cost difference Method: Seventy-seven patients (age 10 days to 8 years) who underwent general anesthesia were randomly allocated into 2 groups: the control group (FGF 2 l.min-1) and the study group (FGF 1 l.min-1). Outcome measures included system leakage, SaO2, PECO2, FiO2, Fi and FeN2O, isoflurane dial setting, Fi and Fe isoflurane, isoflurane mass consumed and sodalime used. Results: There was no difference between the groups regarding demographic data, duration of surgery and anesthesia. Success rate in using FGF 2 l.min-1was 100% and FGF 1 l.min-1was 92%. All failure cases (8%) were due to system leakage. The necessity of using a capnometer was similar at 5.3-7.7% in both groups. FiO2was ≥ 0.3 at any time. FiN2O and FeN2O were not different. Fi isoflurane was 13-15% lower than dial setting. Overall savings from using FGF 1 l/min was 37.8%. Conclusion: FGF1 l.min-1could be safely used in most pediatric patients with lower cost. Capnometer was recommended, whereas FiO2and Fi isoflurane could be clinically adjusted.
ISSN: 01252208
Appears in Collections:Scopus 2001-2005

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