Document Detail

Residual gastric contents volume does not differ following 4 or 6 h fasting after a light breakfast - a magnetic resonance imaging investigation in healthy non-anaesthetised school-age children.
MedLine Citation:
PMID:  22188334     Owner:  NLM     Status:  Publisher    
BACKGROUND: While American Society of Anesthesiologists and European Society of Anaesthesiology guidelines recommend 6 h pre-anaesthetic fasting for food and non-clear fluids in children, some institutions allow shorter fasting times of 4 h. Aim of this pilot study was to compare weight-indexed residual gastric contents volumes (GCV(w) ) after 4 vs. 6 h after a light breakfast, using magnetic resonance imaging (MRI) in healthy volunteer children not scheduled for anaesthesia. METHODS: Four vs. 6 h (F(4) /F(6) ) of food fasting were simulated in a crossover study. After overnight fasting (baseline), each child ingested a light breakfast (cereal flakes, milk products) on two separate days. Additional clear fluid (7 ml/kg raspberry syrup) was given either after 2 (F(4) ) or 4 h (F(6) ), followed by half-hourly MRI acquisition for 2 h. MRI was obtained on a 1.5 Tesla scanner as 5 mm axial images (FIESTA) and volumes were traced manually by one blinded observer. Data are given as median (range) or mean ± standard deviation. RESULTS: Eighteen healthy volunteers aged 9.0 (6.8-12.2) years participated. GCV(w) for F(4) and F(6) at baseline was 0.50 ± 0.27 and 0.76 ± 0.48 ml/kg (P = 0.07), respectively, GCV(w) after 4 and 6 h was 0.72 ± 0.85 and 0.47 ± 0.25 ml/kg (P = 0.88). T(1/2) after syrup intake was 30.8 ± 12.2 and 28.3 ± 5.7 min (P = 0.47) for F(4) and F(6) , respectively. CONCLUSION: Residual gastric contents volumes at a hypothetical anaesthesia start were similar for 4 and 6 h food fasting in healthy volunteer school-age children.
A Schmitz; C J Kellenberger; R Liamlahi; M Fruehauf; R Klaghofer; M Weiss
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-12-20
Journal Detail:
Title:  Acta anaesthesiologica Scandinavica     Volume:  -     ISSN:  1399-6576     ISO Abbreviation:  -     Publication Date:  2011 Dec 
Date Detail:
Created Date:  2011-12-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0370270     Medline TA:  Acta Anaesthesiol Scand     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2011 The Authors Acta Anaesthesiologica Scandinavica © 2011 The Acta Anaesthesiologica Scandinavica Foundation.
Department of Anaesthesia, University Children's Hospital, Zurich, Switzerland.
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