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Updated: Jun 9, 2025
An Experimental Paradigm for the Prediction of Post-Operative Pain PPOP
Published on: January 27, 2010
Patient-reported outcomes, postoperative pain and pain relief after day case surgery (POPPY): methodology for a
William M Hare1,2, Martha Belete3,4, Adam B Brayne1,5
1South West Anaesthesia Research Matrix, UK.
Background:
In the UK, approximately 70% of surgical procedures are undertaken as day-cases. Little information exists about recovery from day-case surgery, yet international data highlights patients are at risk of developing significant longer-term health problems including chronic post-surgical pain and persistent postoperative opioid use. The Patient-reported Outcomes, Postoperative Pain and pain relief after daY case surgery (POPPY) study was a national prospective multicentre observational study, measuring short- and longer-term patient-reported outcomes, postoperative pain and pain relief after day-case surgery.
Methods:
This was a collaborative project led by resident anaesthetists under the Research and Audit Federation of Trainees umbrella. Adult day-case surgical patients were recruited on the day of surgery. Baseline data including patient characteristics; procedure details; pre-operative analgesic use; pre-existing pain; and quality of life scores were recorded. Patients were followed up through automated short message service messages. Short-term (postoperative days 1, 3 and 7) outcomes included: quality of recovery; pain severity; impact of pain on function; and analgesic use. Longer-term outcomes (postoperative day 97) included: quality of life; analgesic use; incidence of chronic post-surgical pain; and incidence persistent postoperative opioid use. Additional outcomes were completed by those patients with chronic post-surgical pain and persistent postoperative opioid use, with 30 patients recruited to a qualitative semi-structured interview study exploring postoperative expectations, recovery, postoperative pain and opioid use.
Results:
An embedded pilot study at four sites recruited 129 patients. Responses to the automated short message service were gained from 129 patients (100%) at day 1; 116 (89.9%) at day 3; 108 (83.7%) at day 7; and 77 (59.7%) at day 97 postoperatively. The pilot enabled refinement of the methods and processes before the national roll out.
Conclusion:
This paper outlines the methods for the POPPY study, the largest UK multicentre prospective observational study considering short- and longer-term outcomes following day-case surgery.
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