Does using fewer wrist straps help adults on mechanical ventilation stay awake more often?
Wrist straps are sometimes used to prevent patients from pulling out breathing tubes or other medical devices. The question asks whether using fewer wrist straps helps mechanically ventilated adults stay more awake. A 2024 randomized trial directly compared a low-use strategy (avoiding straps unless severe agitation) with a high-use strategy (applying straps routinely). The study found no significant difference in days free of delirium or coma between the two groups 5. This suggests that simply using fewer wrist straps does not, by itself, improve wakefulness or reduce sedation in ventilated patients.
What the research says
A large open-label randomized trial across 10 ICUs in France enrolled 405 adults who had just started invasive mechanical ventilation 5. Patients were assigned to either a low-use wrist-strap strategy (straps avoided unless severe agitation, defined as a Richmond Agitation-Sedation Scale score of 3 or higher) or a high-use strategy (straps applied systematically and reassessed daily) 5. The primary outcome was the number of days alive and free of delirium or coma within 28 days. The low-use group had a median of 18 days free of delirium or coma, while the high-use group had a median of 19 days — a difference that was not statistically significant 5. The study also found no significant differences in other outcomes such as duration of mechanical ventilation, ICU length of stay, or mortality 5.
Other research on mechanically ventilated patients has focused on sedation management rather than physical restraints. For example, a meta-analysis of 16 randomized trials found that nurse-led sedation protocols significantly reduced ICU mortality and delirium compared to usual care 8. Another study showed that increasing sedation depth with midazolam decreased energy expenditure, but did not address wakefulness directly 3. These findings highlight that sedation practices — not wrist-strap use — are more closely linked to consciousness levels.
It is important to note that the trial on wrist straps specifically excluded patients with severe agitation at enrollment 5. The low-use strategy did allow straps for patients who became severely agitated later. Therefore, the results apply to the general population of mechanically ventilated adults, not to those who are already highly agitated. The evidence does not support reducing wrist-strap use as a way to keep patients more awake.
What to ask your doctor
- What is the current policy in this ICU regarding wrist-strap restraints for ventilated patients?
- Are there alternative strategies to prevent accidental tube removal, such as sedation protocols or staff observation?
- How does the team assess and manage agitation without relying on physical restraints?
- What sedation protocols are used here, and have they been shown to improve wakefulness and reduce delirium?
- Can you explain the risks and benefits of using or not using wrist straps for my specific situation?
This question is drawn from common patient questions about this topic and answered using cited medical research. We do not provide individualized advice.