Sensitivity and Specificity of a Five-Minute Cognitive Screening Test in Patients with Heart Failure

Janette D. Cameron, Robyn Gallagher, Susan Pressler, Skye N. McLennan, Chantal F. Ski, Geoffrey Tofler, David R. Thompson

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

Background Cognitive impairment occurs in up to 80% of patients with heart failure (HF). The National Institute for Neurological Disorders and Stroke (NINDS) and the Canadian Stroke Network (CSN) recommend a 5-minute cognitive screening protocol that has yet to be psychometrically evaluated in HF populations. The aim of this study was to conduct a secondary analysis of the sensitivity and specificity of the NINDS-CSN brief cognitive screening protocol in HF patients. Methods The Montreal Cognitive Assessment (MoCA) was administered to 221 HF patients. The NINDS-CSN screen comprises 3 MoCA items, with lower scores indicating poorer cognitive function. Receiver operator characteristic (ROC) curves were constructed, determining the sensitivity, specificity and appropriate cutoff scores of the NINDS-CSN screen. Results In an HF population aged 76 ± 12 years, 136 (62%) were characterized with cognitive impairment (MoCA <26). Scores on the NINDS-CSN screen ranged from 3-11. The area under the receiver operating characteristic curve indicated good accuracy in screening for cognitive impairment (0.88; P <.01; 95% CI 0.83-0.92). A cutoff score of ≤9 provided 89% sensitivity and 71% specificity. Conclusions The NINDS-CSN protocol offers clinicians a feasible telephone method to screen for cognitive impairment in patients with HF. Future studies should include a neuropsychologic battery to more comprehensively examine the diagnostic accuracy of brief cognitive screening protocols.

Original languageEnglish (US)
Pages (from-to)99-107
Number of pages9
JournalJournal of Cardiac Failure
Volume22
Issue number2
DOIs
StatePublished - Feb 1 2016

Keywords

  • cognitive impairment
  • cognitive screening
  • Heart failure

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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