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Related Experiment Video

Updated: Jun 11, 2026

A Machine Learning Approach to Design an Efficient Selective Screening of Mild Cognitive Impairment

A Machine Learning Approach to Design an Efficient Selective Screening of Mild Cognitive Impairment

Published on: January 11, 2020

Does mild cognitive impairment increase the risk of developing postoperative cognitive dysfunction?

Alex Bekker¹, Cynthia Lee, Susan de Santi

¹Department of Anesthesiology, New York University Medical Center, New York, NY, USA. alex.bekker@nyumc.org

American Journal of Surgery

|July 9, 2010

Summary

Surgery may worsen cognitive decline in elderly patients with mild cognitive impairment (MCI). This study found that patients with MCI experienced a greater decline in attention and concentration after surgery compared to those without MCI.

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A Mouse Model of Orthopedic Surgery to Study Postoperative Cognitive Dysfunction and Tissue Regeneration

A Mouse Model of Orthopedic Surgery to Study Postoperative Cognitive Dysfunction and Tissue Regeneration

Published on: February 27, 2018

Area of Science:

Geriatric Medicine
Neuroscience
Surgical Outcomes

Background:

Postoperative cognitive dysfunction (POCD) is an emerging concern in elderly patients.
Mild cognitive impairment (MCI) may predispose individuals to accelerated cognitive decline after surgery.

Purpose of the Study:

To investigate if patients with MCI experience a faster progression of dementia postoperatively compared to those without MCI.
To identify potential risk factors for POCD in elderly surgical patients.

Main Methods:

Retrospective review of 670 patients with at least two neurological assessments from the NYU Medical Center's Center for Brain Health.
Analysis of longitudinal differences in cognitive domains before and after surgery.
Comparison of cognitive performance changes between patients with and without MCI.

Main Results:

Patients with MCI who underwent surgery showed a significant decline in Digit Span Forward test performance postoperatively compared to MCI patients without surgery.
No significant cognitive performance changes were observed in normal subjects after surgery.
Surgery negatively impacts attention and concentration specifically in patients with MCI.

Conclusions:

Surgery appears to exacerbate attention and concentration deficits in elderly individuals with pre-existing mild cognitive impairment.
This study identifies a specific subgroup of patients (those with MCI) who may be predisposed to postoperative cognitive dysfunction.
Further research is warranted to explore mechanisms and interventions for POCD in MCI patients.