Melatonin Therapy for Better Sleep in Critically Ill Patients
Author Information
Author(s): Richard S Bourne, Gary H Mills, Cosetta Minelli
Primary Institution: Sheffield Teaching Hospitals, Critical Care Department
Hypothesis
Does exogenous melatonin improve nocturnal sleep quantity in critically ill patients receiving mechanical ventilation?
Conclusion
Melatonin use was associated with increased nocturnal sleep efficiency in critically ill patients.
Supporting Evidence
- Melatonin use was associated with a 1-hour increase in nocturnal sleep.
- Nocturnal sleep time was only 2.5 hours in the placebo group.
- Melatonin appeared to be rapidly absorbed, producing higher plasma concentrations.
Takeaway
Giving melatonin to patients in the ICU might help them sleep better at night.
Methodology
A randomised double-blind placebo-controlled trial was conducted with 24 patients receiving either melatonin or placebo for four nights.
Potential Biases
Imbalances in known risk factors for sleep disturbances due to small sample size may have affected results.
Limitations
The study was smaller than planned, with only 71% of the target sample size reached, and had imbalances in baseline characteristics.
Participant Demographics
Patients included were critically ill adults requiring mechanical ventilation, with a mean age of approximately 64 years.
Statistical Information
P-Value
0.04
Confidence Interval
95% CI -104.47 to -3.98
Statistical Significance
p=0.04
Digital Object Identifier (DOI)
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