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Gastric pH in Intubated Children

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ClinicalTrials.gov Identifier: NCT01516775
Recruitment Status : Completed
First Posted : January 25, 2012
Last Update Posted : October 1, 2012
Sponsor:
Information provided by (Responsible Party):
Achim Schmitz, University Children's Hospital, Zurich

Brief Summary:

Fasting (according to ASA, ESA or institutional guidelines) is an important strategy to minimize the risk of regurgitation, vomiting and pulmonary aspiration during general anaesthesia; the effect of fasting time for clear fluid on gastric pH in children is goal of this study and can be investigated in children undergoing elective procedures in intubation anaesthesia without inconvenience or additional invasive procedure and hence without additional risk

Hypotheses: Gastric pH is higher in children that drink until 1 hour before anaesthesia induction than in those that drink until 2 hours before anaesthesia induction


Condition or disease Intervention/treatment Phase
Preoperative Fasting Other: clear fluid ingestion Not Applicable

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 150 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single (Investigator)
Primary Purpose: Basic Science
Official Title: Untersuchung Des Magen-pH in Intubationsanästhesie Bei Kindern
Study Start Date : January 2012
Actual Primary Completion Date : September 2012
Actual Study Completion Date : September 2012

Arm Intervention/treatment
Experimental: 1 hour fluid fasting
allowed to drink until 1 hour before scheduled anaesthesia induction
Other: clear fluid ingestion
drinking of clear fluid in preoperative period
Active Comparator: 2 hours fluid fasting
allowed to drink until 2 hour before scheduled anaesthesia induction
Other: clear fluid ingestion
drinking of clear fluid in preoperative period



Primary Outcome Measures :
  1. gastric pH [ Time Frame: within 10 min after tracheal intubation ]
    gastric pH is measured from gastric contents which is sampled in a syringe via an orogastric tube immediately during anaesthesia after tracheal intubation induction; suctioning of the stomach after intubation is a procedure routinely performed in every intubation child in our institution


Secondary Outcome Measures :
  1. subjective feeling of hunger/thirst [ Time Frame: within 10 minutes after arrival of patient in operating theatre ]
    subjective feeling of hunger/thirst given as rating scale from 1 to 4

  2. gastric aspirate volume [ Time Frame: within 10 min after tracheal intubation ]
    gastric aspirate volume is the amount of gastric contents which is sampled in a syringe via an orogastric tube immediately during anaesthesia after tracheal intubation induction; suctioning of the stomach after intubation is a procedure routinely performed in every intubation child in our institution

  3. Postoperative Nausea and Vomiting (PONV) in recovery unit [ Time Frame: recovery period, on the average within 90 minutes after end of anaesthesia ]
  4. Behaviour during recovery period [ Time Frame: recovery period, on the average within 90 minutes after end of anaesthesia ]
    Rating Scale 1 - 5 by blinded nurse (5: severely agitated/emergency delir with subsequent drug therapy, 4: agitated/emergeny delir; 3: slightly agitated; 2: complaining pain but cooperative; 1: cooperative)

  5. Behaviour during anaesthesia induction [ Time Frame: on the average within 20 minutes after arrival of patient in operating theatre ]
    Rating scale 1 - 5 by (blinded) anaesthetist: 1: cooperating - 2: anxious but cooperating - 3: hostile - 4: crying - 5: agitated/fighting



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Ages Eligible for Study:   1 Year to 16 Years   (Child)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • age > 1 / <= 16 years
  • ASA class I or II
  • elective surgery requiring general anaesthesia using tracheal intubation

Exclusion Criteria:

  • disease or dysfunction of gastrointestinal tract
  • chronic diseases or conditions not compatible with ASA class I or II

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01516775


Locations
Switzerland
University Children's Hospital
Zurich, Switzerland, 4153
Sponsors and Collaborators
Achim Schmitz
Investigators
Principal Investigator: Achim J Schmitz, MD University Children's Hospital, Zurich

Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: Achim Schmitz, Principle Investigator, Consultant ("Leitender Arzt Anästhesieabteilung, Leiter Weisse Zone"), University Children's Hospital, Zurich
ClinicalTrials.gov Identifier: NCT01516775     History of Changes
Other Study ID Numbers: KEK-ZH Nr. 2011-0034
First Posted: January 25, 2012    Key Record Dates
Last Update Posted: October 1, 2012
Last Verified: September 2012

Keywords provided by Achim Schmitz, University Children's Hospital, Zurich:
preoperative care
preoperative period
fasting