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Gastric pH and residual volume after 1 and 2 h fasting time for clear fluids in children†

Schmidt, A. R. ; Buehler, P. ; Seglias, L. ; Stark, T. ; Brotschi, B. ; Renner, T. ; Sabandal, C. ; Klaghofer, R. ; Weiss, M. ; Schmitz, A. ; Struys, M. M. R. F. ; Struys, M. M. R. F.

In: British Journal of Anaesthesia, 2015, vol. 114, no. 3, p. 477-482

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    Titre
    • Gastric pH and residual volume after 1 and 2 h fasting time for clear fluids in children†
    Auteur
    • Schmidt, A. R.. Department of Anaesthesia, University Children's Hospital, Steinwiesstrasse 75, Zurich CH-8032, Switzerland
    • Buehler, P.. Department of Anaesthesia, University Children's Hospital, Steinwiesstrasse 75, Zurich CH-8032, Switzerland
    • Seglias, L.. Department of Anaesthesia, University Children's Hospital, Steinwiesstrasse 75, Zurich CH-8032, Switzerland
    • Stark, T.. Department of Anaesthesia, University Children's Hospital, Steinwiesstrasse 75, Zurich CH-8032, Switzerland
    • Brotschi, B.. Department of Anaesthesia, University Children's Hospital, Steinwiesstrasse 75, Zurich CH-8032, Switzerland
    • Renner, T.. Department of Anaesthesia, University Children's Hospital, Steinwiesstrasse 75, Zurich CH-8032, Switzerland
    • Sabandal, C.. Department of Anaesthesia, University Children's Hospital, Steinwiesstrasse 75, Zurich CH-8032, Switzerland
    • Klaghofer, R.. Department of Psychiatry and Psychotherapy, University Hospital, Zurich, Switzerland
    • Weiss, M.. Department of Anaesthesia, University Children's Hospital, Steinwiesstrasse 75, Zurich CH-8032, Switzerland
    • Schmitz, A.. Department of Anaesthesia, University Children's Hospital, Steinwiesstrasse 75, Zurich CH-8032, Switzerland
    • Struys, M. M. R. F.. University Children's Hospital, Department of Anaesthesia, Steinwiesstrasse 75, Zurich CH-8032, Department of Psychiatry and Psychotherapy, Zurich, Switzerland, Switzerland
    • Struys, M. M. R. F.. 1Department of Anaesthesia, University Children's Hospital, Steinwiesstrasse 75, Zurich CH-8032, Switzerland
    Type de document
    • Postprint
    Langue
    • Inglese
    Publié dans
    • British Journal of Anaesthesia, 2015, vol. 114, no. 3, p. 477-482. Oxford University Press
    Autre version électronique
    Identifiant OAI-PMH
    • oai:doc.rero.ch:294450
    Summary
    Introduction Current guidelines suggest a fasting time of 2 h for clear fluids, which is often exceeded in clinical practice, leading to discomfort, dehydration and stressful anaesthesia induction to patients, especially in the paediatric population. Shorter fluid fasting might be a strategy to improve patient comfort but has not been investigated yet. This prospective clinical trial compares gastric pH and residual volume after 1 vs 2 h of preoperative clear fluid fasting. Methods Children (1-16 yr, ASA I or II) undergoing elective procedures in general anaesthesia requiring tracheal intubation were randomized into group A with 60 min or B with 120 min preoperative clear fluid fasting. To determine gastric pH and residual volume, the gastric content was sampled in supine, left and right lateral patient position using an oro-gastric tube after intubation. Data are median (interquartile range) for group A or B (P<0.05). Results In total, 131 children aged 1.01-16.23 yr were included; gastric pH was determined in 120 cases. Patient characteristic data were similar between the two groups, except for gender (46/33 males in group A/B; P=0.02). Despite significantly shorter fasting times for clear fluids in group A compared with group B (76/136 min; P<0.001), no significant difference was observed regarding gastric pH [1.43 (1.30-1.56)/1.44 (1.29-1.68), P=0.66] or residual volume [0.43 (0.21-0.84)/0.46 (0.19-0.78) ml kg−1, P=0.47]. Conclusion One hour clear fluid fasting does not alter gastric pH or residual volume significantly compared with 2 h fasting. Clinical trial registration The study was approved by the local ethics committee (KEK-ZH-Nr. 2011-0034) and registered with ClinicalTrials.gov (NCT01516775)