CAM (Confusion Assessment Method)

Purpose:
A method for detecting delerirum in a high risk setting.

Rationale:
Delirium is common among hospitalized elderly patients and is associated with increased morbidity and mortality. Delirium commonly goes unrecognized. Existing cognitive tools were inadequate for detecting delirium.

The Method:
The method consists of two phases. The first is an assessment instrument and the second is a diagnostic algorithm.

An example and description is available at:
http://consultgerirn.org/uploads/File/Confusion%20Assessment%20Method%20%28CAM%29.pdf

Several versions of the diagnostic algorithm:
http://www.viha.ca/NR/rdonlyres/24020AE2-09A5-45ED-A1D9-21F933BA9169/0/cam_09.pdf

http://www.bcguidelines.ca/gpac/pdf/cognitive_appendix_a.pdf

http://www.rgpc.ca/best/Geriatric%20Fast%20Facts/CONFUSION%20ASSESSMENT%20METHOD.pdf

Validation:
In the orginal validation study CAM had a sensitivity of 94-100% and specificity of 90-95% with a high inter-rater reliability.

References:
Inouye S, van Dyck CH, Alessi CA, Balkin S, Siegal A, Horwitz RI. Clarifying Confusion: The Confusion Assessment Method. Ann Internal Med. 1990;113(12):941-948.

This entry was posted in Cognition. Bookmark the permalink.

Leave a Reply