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Design of Cecal Ligation and Puncture and Intranasal Infection Dual Model of Sepsis-Induced Immunosuppression
Published on: June 15, 2019
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Postoperative sepsis and its sequential impact on dementia.
Mingyang Sun1, Fangfang Li1, Yangyang Wang1
1Department of Anesthesiology and Perioperative Medicine, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, 7 Weiwu Rd, Zhengzhou, Henan, China.
Critical Care (London, England)
|February 6, 2025
Summary
Postoperative sepsis significantly increases dementia risk in a dose-dependent manner. Preventing surgical infections is crucial for reducing long-term cognitive decline and mortality.
Area of Science:
- Medical research
- Epidemiology
- Gerontology
Background:
- Postoperative sepsis is a serious complication linked to higher mortality.
- It may also contribute to long-term cognitive impairment, such as dementia.
- The precise link between postoperative sepsis and dementia is not well understood.
Purpose of the Study:
- To investigate the association between postoperative sepsis and the subsequent risk of dementia.
- To explore whether the number of sepsis events influences dementia risk.
- To examine the impact of postoperative sepsis on mortality.
Main Methods:
- Retrospective cohort study using Taiwanese National Database (2005-2022).
- Included patients undergoing surgery between 2008-2013 without prior dementia.
- Propensity score matching (1:4) and survival analysis (Cox, Fine-Gray models) were used.
Main Results:
- Postoperative sepsis group (n=778) had higher dementia incidence (26%) vs. control (n=3,112, 13.6%).
- Dementia risk increased with more sepsis events (HR 1.77 for ≥2 events).
- Mortality was also higher in the sepsis group (40.5% vs. 31.6%).
Conclusions:
- Postoperative sepsis is a significant risk factor for dementia.
- The risk of dementia following surgery increases with the number of sepsis episodes.
- Improved perioperative infection control is vital to mitigate cognitive complications.
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