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Postoperative delirium: risk factors and management: continuing professional development
Alan J Chaput1, Gregory L Bryson
1Department of Anesthesiology, The Ottawa Hospital, University of Ottawa, 249C-1053 Carling Avenue, Ottawa, Ontario, Canada. achaput@ottawahospital.on.ca
Canadian Journal of Anaesthesia = Journal Canadien D'Anesthesie
|February 8, 2012
Summary
Postoperative delirium, a common condition affecting up to 40% of surgical patients, requires early identification and intervention. Proactive prevention strategies are more effective than treatment for improving patient outcomes.
Area of Science:
- Anesthesiology
- Geriatric Medicine
- Perioperative Care
Background:
- Postoperative delirium is frequently undiagnosed and untreated, impacting patient outcomes.
- Delirium presents with acute onset, fluctuating course, inattention, and altered consciousness, affecting up to 40% of perioperative patients.
- Multifactorial pathophysiology involves inflammation, neurotransmission changes (acetylcholine, dopamine), and surgical stress.
Purpose of the Study:
- To identify high-risk patients for delirium after non-cardiac surgery.
- To provide bedside diagnostic tools for delirium.
- To recommend optimal prevention and treatment strategies.
Main Methods:
- Review of current literature on delirium pathophysiology, risk factors, and management.
- Identification of predictive surgical and patient factors.
- Evaluation of prevention and treatment efficacy.
Main Results:
- Delirium is associated with increased hospital stay and mortality.
- Proactive geriatric assessment, specialized care, and prophylactic low-dose antipsychotics are effective prevention strategies.
- Regional anesthesia and minimal sedation may reduce delirium risk.
- Low-dose oral antipsychotics are effective for treatment.
Conclusions:
- Early recognition and prompt treatment of delirium are crucial to minimize adverse outcomes.
- Anesthesiologists must be vigilant in identifying at-risk patients and screening for delirium.
- Prevention strategies are key to effective delirium management.
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