Rapid Cognitive Assessment Tools for Screening of Mild Cognitive Impairment in the Preoperative Setting: A Systematic Review and Meta-Analysis

Journal of Clinical Anesthesia

Tran, J., Nimojan, T., et al. (2022).

Journal of Clinical Anesthesia, 78, 110682.

This systematic review and meta-analysis examines the predictive parameters of rapid screening tools for mild cognitive impairment (MCI). Although speech-language pathologists do not diagnose MCI, findings from this review may be useful to clinicians when screening for cognitive impairments as well as determining preoperative cognitive baseline and the need for postoperative care.

ResMed Research Chair of Anesthesia, Sleep, and Perioperative Medicine (Canada); University Health Network Foundation (Canada)



up to May 26, 2021

Diagnostic accuracy studies reporting predictive variables (e.g., sensitivity, specificity, positive predictive value [PP], negative predictive value)

23; 12 meta-analyzed

While no screening tool has been validated for the surgical population, the Rapid Cognitive Screening Test was found to have the highest sensitivity (82%) and specificity (79%) to detect MCI in adult populations. Validity findings for other screening tools included the Six-item Screener (61% sensitivity; 89% specificity), the Mini-Cog Test (52% sensitivity; 80% specificity) and the Clock Drawing Test (56% sensitivity; 59% specificity). Further validation is warranted to determine the diagnostic accuracy of these screening tools in preoperative settings.