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Cognitive dysfunction after minor surgery in the elderly.

J Canet1, J Raeder, L S Rasmussen

  • 1Department of Anesthesia, Hospital Universitari Germans Trias i Pujol, Barcelona, Spain. jcanet@ns.hugtip.scs.es

Acta Anaesthesiologica Scandinavica
|November 18, 2003
PubMed
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Elderly patients undergoing minor surgery have a low incidence of postoperative cognitive dysfunction (POCD). Older age and inpatient care are risk factors for POCD, suggesting outpatient care is preferable.

Area of Science:

  • Geriatric Medicine
  • Anesthesiology
  • Neuroscience

Background:

  • Postoperative cognitive dysfunction (POCD) is a concern in elderly patients after major surgery.
  • The impact of minor surgery and hospitalization on POCD requires further investigation.

Purpose of the Study:

  • To determine the incidence of POCD in elderly patients undergoing minor surgery.
  • To identify risk factors associated with POCD in this patient group.

Main Methods:

  • 372 patients over 60 years old undergoing minor surgery under general anesthesia were studied.
  • Cognitive function was assessed preoperatively and at 7 days and 3 months postoperatively.
  • Patients were categorized into inpatient (199) and outpatient (173) groups.

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Main Results:

  • The incidence of POCD was 6.8% at 7 days and 6.6% at 3 months.
  • Significant risk factors for POCD included age over 70 (OR: 3.8) and inpatient vs. outpatient surgery (OR: 2.8).

Conclusions:

  • Elderly patients undergoing minor surgery have a low incidence of POCD.
  • Outpatient minor surgery is associated with less cognitive dysfunction compared to inpatient procedures, supporting its use when feasible.