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A Mouse Model of Orthopedic Surgery to Study Postoperative Cognitive Dysfunction and Tissue Regeneration
Published on: February 27, 2018
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Post-operative delirium is associated with increased 5-year mortality
Eliza E Moskowitz1, Douglas M Overbey1, Teresa S Jones1
1VA Eastern Colorado Health Care System, Department of Surgery, Denver, CO, USA.
American Journal of Surgery
|September 27, 2017
Summary
Postoperative delirium in older adults significantly increases 5-year mortality risk. This study found a 7.35-fold greater chance of death within five years for patients experiencing delirium after surgery.
Area of Science:
- Geriatric Medicine
- Surgical Outcomes
- Critical Care Medicine
Background:
- Postoperative delirium (POD) is linked to worse short-term outcomes in older adults.
- Long-term consequences of POD remain understudied.
- This research investigates the association between POD and 5-year mortality.
Purpose of the Study:
- To determine if postoperative delirium impacts 5-year survival rates in older surgical patients.
- To quantify the long-term mortality risk associated with POD.
Main Methods:
- Prospective enrollment of 172 patients aged 50+ undergoing elective surgery with ICU admission.
- Delirium diagnosis using the Confusion Assessment Method ICU (CAM-ICU).
- Primary endpoint: 5-year all-cause mortality.
Main Results:
- Overall delirium incidence was 44%.
- Five-year mortality was significantly higher in patients with delirium (59%) versus without (13%).
- Multivariable analysis confirmed delirium increased 5-year mortality odds by 7.35 times.
Conclusions:
- Postoperative delirium is a significant predictor of increased long-term mortality.
- Findings highlight the critical need for delirium prevention and management strategies.
- POD adversely affects survival beyond the immediate postoperative period.
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