South West Anaesthesia Research Matrix


AFAR- Accelerometers for Assessing Recovery.

Can an accelerometer be used as an objective patient-centred endpoint tool for measuring recovery from anaesthesia in the natural environment ? A pilot study.
Following her winning pitch at the Hive of Ideas at the 2017 SWARM AGM, Dr Anna Ratcliffe is leading this project.

Measurement of the “success” of anaesthesia and perioperative care is a research priority; objective measurement of patient recovery is challenging, particularly after discharge.  Wearable movement sensors (“accelerometers”) are a novel technology that may have utility to measure patient-centred endpoints such as activity levels. 

This SWARM feasibility study is a clinical collaboration with the Open Lab computer science research group, developers of the AX3 accelerometer and software.

We aim to investigate the feasibility of using accelerometers to track recovery, to gain experience with this technology, and test a methodology that could be deployed at scale across our trainee research network.

We will recruit 50 adult day surgery patients to wear the AX3 accelerometer device for three “Wear Periods”:  immediately before and after their operation (i.e baseline and recovery) and at three months post-operatively.  The activity data will be analysed alongside demographics, clinical details and the QoR-15 to assess the reliability and responsiveness of the accelerometer as a tool to measure recovery.  

“Acceptability” will be explored with feedback questionnaires and a PPI group.  Feasibility for future study will be informed by recruitment rate, wear time (compliance), device return rate, and proportion of usable data.

  • ​Research MOT session at NRCM Meeting, Birmingham, 2018 (Anna Ratcliffe)
  • ​SWARM RTS 2018 (Anna Ratcliffe)