The effect of cognitive dysfunction on mid- and long-term mortality after vascular surgery

Area of Science:

• Gerontology
• Vascular Surgery
• Cognitive Science

Background:

• Frailty is increasingly recognized in perioperative risk assessment.
• Psychological and socioeconomic factors are components of frailty syndrome.
• The impact of these factors on mortality after vascular surgery requires further investigation.

Purpose of the Study:

• To assess the significance of psychological and socioeconomic factors in mortality following vascular surgery.
• To evaluate the role of cognitive function, depression, anxiety, and quality of life in frailty.
• To determine the predictive value of these frailty components for long-term mortality.

Main Methods:

• Prospective observational study of 164 patients undergoing elective vascular surgery.
• Assessment of cognitive function (MMSE), mood, social support, and quality of life using a comprehensive frailty index.
• Propensity score matching with a nationwide cohort, Kaplan-Meier, and Cox regression analysis for 4-year mortality.

Main Results:

• Patients with cognitive impairment (MMSE < 27) had significantly higher 4-year mortality rates (47.6%) compared to controls (22.4%).
• Univariate Cox regression revealed cognitive impairment as a significant predictor of mortality (AHR: 2.842, p=0.004).
• Age and education-adjusted Mini-Mental State Examination scores were used to measure cognitive impairment.

Conclusions:

• Mild preoperative cognitive dysfunction is a significant risk factor for mortality after vascular surgery.
• Cognitive impairment, even when mild, should be considered in perioperative risk evaluations.
• Further research into interventions for cognitive dysfunction in surgical patients is warranted.