Perioperative medicine & outcomes
Postoperative circadian patterns in wearable sensor measured heart rate: a prospective observational study
Authors' conclusion
The postoperative diurnal rhythm of heart rate is disturbed by different types of surgery. Both groups showed recovery of diurnal rhythm but in patients following cancer surgery, both peak and nadir heart rates were higher than in the bariatric surgery group. Especially nadir heart rate was identified as a potential prognostic marker for deterioration after cancer surgery.
Study context
- Population
- Patients following bariatric or major abdominal cancer surgery39 cancer surgery patients deteriorated
- Participants
- 137 vs 100
- Exposure
- Bariatric vs major abdominal cancer surgery; cancer surgery patients with vs without postoperative deterioration
- Bariatricn = 137
- Cancer surgeryn = 100reference
- Outcome
- 24-hour cycle (diurnal rhythm) of wearable sensor-obtained HR: peak, nadir and peak-nadir excursions
- Follow-up
- 14 days
Methodological detailswearable sensor (Healthdot) continuous monitoring, 14 days in hospital and after discharge
- Wearable sensor (Healthdot) continuous monitoring
- 14 days in hospital and after discharge
Main finding
As reported in the abstract
Diurnal rhythm of HR, bariatric vs cancer surgery
- Disrupted diurnal rhythm in both surgery types on the first postoperative days
- Bariatric: significantly lower peak HR (days 4, 7-12, 14)
- Bariatric: significantly lower nadir HR (days 3-14)
- Bariatric: significantly larger peak-nadir excursions (days 2, 4-14)
Observational data: associations, not effects.
Further findings
HR prior to postoperative deterioration, cancer surgery patients
- Significantly higher nadir HR (days 2-5) before deterioration
- Significantly higher peak HR (days 2-3) before deterioration
Original publication
Postoperative circadian patterns in wearable sensor measured heart rate: a prospective observational study. J Clin Monit Comput. Published 21 October 2023. doi:10.
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