Abstract:
Background: Healthcare cannot achieve net-zero carbon without addressing operating theatres. The aim of this study was to prioritize
feasible interventions to reduce the environmental impact of operating theatres.
Methods: This study adopted a four-phase Delphi consensus co-prioritization methodology. In phase 1, a systematic review of
published interventions and global consultation of perioperative healthcare professionals were used to longlist interventions. In
phase 2, iterative thematic analysis consolidated comparable interventions into a shortlist. In phase 3, the shortlist was co-
prioritized based on patient and clinician views on acceptability, feasibility, and safety. In phase 4, ranked lists of interventions
were presented by their relevance to high-income countries and low–middle-income countries.
Results: In phase 1, 43 interventions were identified, which had low uptake in practice according to 3042 professionals globally. In phase
2, a shortlist of 15 intervention domains was generated. In phase 3, interventions were deemed acceptable for more than 90 per cent of
patients except for reducing general anaesthesia (84 per cent) and re-sterilization of ‘single-use’ consumables (86 per cent). In phase 4,
the top three shortlisted interventions for high-income countries were: introducing recycling; reducing use of anaesthetic gases; and
appropriate clinical waste processing. In phase 4, the top three shortlisted interventions for low–middle-income countries were:
introducing reusable surgical devices; reducing use of consumables; and reducing the use of general anaesthesia.
Conclusion: This is a step toward environmentally sustainable operating environments with actionable interventions applicable to both
high– and low–middle–income countries.
