Propofol Anesthesia Improves Sleep Quality After Surgery in Older Adults
Propofol-based anesthesia led to 29 minutes more sleep than sevoflurane on the first night after major abdominal surgery in patients 65-90 years old.
Summary
A randomized trial of 144 older adults (65-90 years) undergoing major abdominal surgery found that propofol-based anesthesia resulted in significantly better sleep quality compared to sevoflurane. Patients receiving propofol slept 29 minutes longer on the first postoperative night (150 vs 111 minutes total sleep time). The improvement was linked to lower plasma orexin-A levels, a key wake-promoting hormone. This finding suggests anesthesia choice may impact recovery through sleep quality mechanisms in older surgical patients.
Detailed Summary
Sleep disturbances are a major concern for older adults recovering from surgery, potentially affecting healing and cognitive function. This randomized clinical trial investigated whether the choice of anesthesia could influence postoperative sleep quality in this vulnerable population.
Researchers at Peking University First Hospital studied 144 patients aged 65-90 years undergoing elective major abdominal surgery. Participants were randomly assigned to receive either propofol-based intravenous anesthesia or sevoflurane-based inhalational anesthesia. Sleep was objectively measured using actigraphy devices on the first postoperative night.
The results showed a clinically meaningful difference in sleep duration. Patients who received propofol anesthesia slept significantly longer (median 150 minutes) compared to those who received sevoflurane (median 111 minutes) - a difference of 29 minutes. The propofol group also had lower plasma levels of orexin-A, a neuropeptide that promotes wakefulness, at multiple time points after surgery.
These findings suggest that anesthesia choice may influence recovery through sleep-related mechanisms. Better sleep quality could potentially improve healing, reduce delirium risk, and enhance overall surgical outcomes in older adults. The orexin-A findings provide a biological explanation for the observed sleep differences, as this hormone plays a crucial role in maintaining alertness and disrupting sleep when elevated.
Key Findings
- Propofol anesthesia increased total sleep time by 29 minutes vs sevoflurane on first postoperative night
- Propofol group had lower orexin-A levels, a wake-promoting hormone, after surgery
- Study included 144 older adults (65-90 years) undergoing major abdominal surgery
- Sleep was objectively measured using actigraphy devices
Methodology
This was a randomized clinical trial conducted at a university hospital from May 2022 to April 2023. Patients aged 65-90 years scheduled for elective major abdominal surgery were randomly assigned to propofol or sevoflurane anesthesia groups, with sleep monitored by actigraphy.
Study Limitations
This summary is based on the abstract only, limiting detailed analysis of methodology and results. The study was conducted at a single center, and longer-term sleep outcomes beyond the first postoperative night were not reported in the abstract.
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