Feasibility of low-cost accelerometers in measuring functional recovery after major oncologic surgery.

Background And Objectives: Low-cost consumer-based activity monitors (CAMs), such as the Fitbit, are popular for fitness and wellness tracking. Functional status is an excellent predictor of postoperative outcomes, yet objective measurements are resource-intensive. The aim of this study is to demonstrate the feasibility of using activity monitors during the perioperative period in patients undergoing major oncologic surgery.

Methods: An institution review board proved that a prospective study was conducted. CAMs were worn throughout the perioperative period and accelerometer data were collected. Baseline and 21-days follow-up functional measures included short physical performance battery, Community Health Activities Model Program questionnaire, mobility assessment tool-short form, and 400 m walk.

Results: A total of 19 of 22 (86%) patients who wore a CAM during the perioperative period had analyzable data. Compliance with wearing the device varied significantly: 100% preadmission, 19% in-hospital, and 82% postdischarge. Median daily steps decreased from preadmission to postdischarge (77% median reduction). Established resource-intensive measures of functional status did not perform well as measures of decreased functional status and activity when comparing baseline to 21-day postdischarge assessments.

Conclusions: Activity monitors are a feasible, low-cost measure of perioperative activity for patients undergoing major surgery, and may be useful in identifying patients vulnerable to postsurgical complications.