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Optimal outcome measures for a trial of not routinely measuring gastric residual volume in neonatal care: a mixed
Chris Gale1, Jon Dorling2, Barbara Arch3
1Neonatal Medicine, School of Public Health, Faculty of Medicine, Imperial College London, London, UK christopher.gale@imperial.ac.uk.
Insights
This study identified key outcomes for trials on not routinely measuring gastric residual volume in neonatal care. The findings ensure that trial results will be meaningful to both healthcare professionals and parents.
Area of Science:
- Neonatal intensive care
- Clinical trial methodology
- Evidence-based practice
Background:
- Routine measurement of gastric residual volume in neonatal units lacks strong evidence.
- Optimal outcome selection is crucial for designing effective clinical trials in neonatal care.
Purpose of the Study:
- To establish the most relevant outcome measures for a clinical trial evaluating the cessation of routine gastric residual volume measurement in neonates.
- To align trial outcomes with the priorities of healthcare professionals and parents.
Main Methods:
- A comprehensive approach combining literature review, parent interviews, a modified Delphi survey with 61 neonatal healthcare professionals, and a stakeholder consensus meeting.
- Inclusion of 17 parents in interviews and 19 parents and professionals in the consensus meeting to gather diverse perspectives.
Main Results:
- Initial literature review and parent interviews generated 22 potential outcomes.
- A two-round Delphi survey involving 74 and 61 healthcare professionals respectively, followed by a consensus meeting with 19 participants, refined the outcome list.
- Nine consensus outcomes were finalized: mortality, necrotising enterocolitis, time to full enteral feeds, duration of parenteral nutrition, time feeds stopped per 24 hours, healthcare-associated infection, catheter-associated bloodstream infection, change in weight, and pneumonia due to milk aspiration.
Conclusions:
- A definitive set of nine outcomes has been identified for trials investigating the practice of not routinely measuring gastric residual volume in neonatal feeding.
- This consensus-driven outcome set ensures that the trial's endpoints are significant and relevant to both clinical practice and patient family experiences.
Background:
Routine measurement of gastric residual volume to guide feeding is widespread in neonatal units but not supported by high-quality evidence. Outcome selection is critical to trial design.
Objective:
To determine optimal outcome measures for a trial of not routinely measuring gastric residual volume in neonatal care.
Design:
A focused literature review, parent interviews, modified two-round Delphi survey and stakeholder consensus meeting.
Participants:
Sixty-one neonatal healthcare professionals participated in an eDelphi survey; 17 parents were interviewed. 19 parents and neonatal healthcare professionals took part in the consensus meeting.
Results:
Literature review generated 14 outcomes, and parent interviews contributed eight additional outcomes; these 22 outcomes were then ranked by 74 healthcare professionals in the first Delphi round where four further outcomes were proposed; 26 outcomes were ranked in the second round by 61 healthcare professionals. Five outcomes were categorised as 'consensus in', and no outcomes were voted 'consensus out'. 'No consensus' outcomes were discussed and voted on in a face-to-face meeting by 19 participants, where four were voted 'consensus in'. The final nine consensus outcomes were: mortality, necrotising enterocolitis, time to full enteral feeds, duration of parenteral nutrition, time feeds stopped per 24 hours, healthcare-associated infection; catheter-associated bloodstream infection, change in weight between birth and neonatal discharge and pneumonia due to milk aspiration.
Conclusions And Relevance:
We have identified outcomes for a trial of no routine measurement of gastric residual volume to guide feeding in neonatal care. This outcome set will ensure outcomes are important to healthcare professionals and parents.
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