Preoperative Fasting
Conditions
Keywords
preoperative care, preoperative period, fasting
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
Interventions
drinking of clear fluid in preoperative period
Sponsors
Achim Schmitz
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
BASIC_SCIENCE
Masking
SINGLE (Investigator)
Eligibility
Sex/Gender
ALL
Age
1 Years to 16 Years
Healthy volunteers
No
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
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| gastric pH | 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
| Measure | Time frame | Description |
|---|---|---|
| Behaviour during recovery period | 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) |
| subjective feeling of hunger/thirst | within 10 minutes after arrival of patient in operating theatre | subjective feeling of hunger/thirst given as rating scale from 1 to 4 |
| gastric aspirate volume | 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 |
| Postoperative Nausea and Vomiting (PONV) in recovery unit | recovery period, on the average within 90 minutes after end of anaesthesia | — |
| Behaviour during anaesthesia induction | 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 |
Countries
Switzerland
Outcome results
None listed