Protocol for a multi-centre observational and mixed methods pilot study to identify factors predictive of poor functional recovery after major gastrointestinal surgery and strategies to enhance uptake of perioperative optimization: Optimizing the care and treatment pathways for older patients facing major gastrointestinal surgery (OCTAGON)

Sarah L Daniels, Matthew J Lee, Susan Moug, Tim R Wilson, Maria Burton, Jayan George, Steven R Brown, Lynda Wyld, Sarah L Daniels, Matthew J Lee, Susan Moug, Tim R Wilson, Maria Burton, Jayan George, Steven R Brown, Lynda Wyld

Abstract

Introduction: National datasets report large variations in outcomes from older people (≥65 years) between different UK surgical units. This implies that not all patients receive the same level of care or access to resources, such as rehabilitation or allied health professional input. This might impact functional decline.

Aims: Our aim is to evaluate the baseline status of older patients facing major gastrointestinal surgery and the impact of variation in perioperative assessment and provision of perioperative support on functional outcomes. Patients' experiences and views of assessment and optimization will be explored via integrated qualitative semi-structured interviews.

Methods and analysis: This multi-centre, pilot cohort study will include patients ≥65 years presenting via both elective and emergency pathways at three to five South Yorkshire NHS hospitals (Clinical Trials registration NCT04545125). The primary outcome is functional recovery measured using the World Health Organization Disability Assessment Schedule 2.0 at 6 weeks post-operation. Secondary outcomes include feasibility, quality of life, length of stay and complication rate. An opportunistic sample size of 120 has been estimated and will inform the design of a future, adequately powered study. For the qualitative study, 20-30 semi-structured patient interviews will be undertaken with patients from the cohort study to explore experiences of assessment and optimization. Interviews will be digitally recorded, transcribed verbatim and analysed according to the framework approach.

Ethics and dissemination: This study has been approved by the National Health Service Research Ethics Committee and is registered centrally with Health Research Authority. It has been adopted by the National Institute for Health Research Portfolio scheme. Dissemination will be via international and national surgical and geriatric conferences.

Keywords: gastrointestinal; morbidity; outcomes; prehabilitation; rehabilitation; risk assessment; surgery.

© 2021 The Authors. Colorectal Disease published by John Wiley & Sons Ltd on behalf of Association of Coloproctology of Great Britain and Ireland.

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