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Prophylaxis for pediatric postoperative nausea and vomiting: a scoping review of clinical trials
Evelina Pankiv1, Alfonso E Albornoz1, Jessica Nghiem2
1Department of Anesthesia and Pain Medicine, The Hospital for Sick Children (SickKids), Toronto, ON, Canada.
Insights
Prophylactic strategies for pediatric postoperative nausea and vomiting (PONV) primarily focus on pharmacologic interventions. More research is needed on nonpharmacologic and mixed approaches for pediatric PONV prevention.
Area of Science:
- Anesthesiology
- Pediatric Surgery
- Evidence-Based Medicine
Background:
- Postoperative nausea and vomiting (PONV) is a frequent complication in pediatric patients under general anesthesia.
- Effective prophylactic interventions are crucial for patient well-being and optimizing perioperative care.
Purpose of the Study:
- To systematically review the evidence on prophylactic strategies for pediatric PONV.
- To assess both pharmacologic and nonpharmacologic interventions targeting pediatric PONV.
Main Methods:
- Comprehensive literature search across multiple databases (MEDLINE, Embase, Cochrane, etc.) up to September 2022.
- Included 188 clinical trials investigating various PONV prophylaxis methods.
- Identified common surgical contexts (strabismus, tonsillectomy) and assessment tools (clinical judgment).
Main Results:
- The vast majority of trials (83%) focused on pharmacologic interventions for pediatric PONV.
- Nonpharmacologic and mixed interventions were investigated in a smaller proportion of studies (13% and 3%, respectively).
- Clinical judgment was the predominant method for assessing PONV in the reviewed trials.
Conclusions:
- Current research on pediatric PONV prophylaxis is heavily weighted towards pharmacologic agents.
- There is a significant gap in research regarding nonpharmacologic and combined prophylactic strategies.
- Standardized assessment tools (e.g., Baxter Animated Retching Faces Scale) and concurrent evaluation of pain/adverse effects are recommended for future research.
Purpose:
Postoperative nausea and vomiting (PONV) is common in pediatric patients undergoing general anesthesia, and clinicians seek prophylactic interventions to prevent its ill effects on patients as well as its ramifications on perioperative care. We sought to assess the body of evidence around prophylactic strategies, both pharmacologic and nonpharmacologic, targeting pediatric PONV.
Source:
We searched MEDLINE, MEDLINE ePubs Ahead of Print and In-Process Citations, Embase Classic+Embase, the Cochrane Database of Systematic Reviews, Cochrane CENTRAL (via the Ovid platform), Scopus (Elsevier), Web of Science (Clarivate Analytics), ClinicalTrials.gov, the WHO International Clinical Trials Registry Platform, and the International Standard Randomized Controlled Trial Number Registry, from their inception to 23 September 2022.
Principal Findings:
Of 188 clinical trials, 157 (83%) investigated pharmacologic interventions, 25 (13%) investigated nonpharmacologic interventions, and six (3%) investigated mixed pharmacologic and nonpharmacologic interventions. The most common surgeries investigated for pediatric PONV were strabismus surgery (68 trials, 36%) and tonsillectomy or tympanoplasty (45 trials, 23%). Of four measurement tools used to assess PONV in the included trials, the most common was clinical judgement (170 trials, 90%).
Conclusion:
The majority of data in pediatric PONV prophylaxis is based on pharmacologic interventions, with a paucity of research in nonpharmacologic or mixed interventions. Assessing and documenting PONV using tools such as the Baxter Animated Retching Faces Scale or PONV numeric scoring system may help standardize pediatric PONV prophylaxis research moving forward. Furthermore, concurrently assessing pain and adverse effects associated with PONV might further inform our understanding of this complex clinical entity.
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