Subsyndromal delirium

Sue E. Levkoff, Benjamin Liptzin, Paul D. Cleary, Terrie Wetle, Denis A. Evans, John W. Rowe, Lewis A. Lipsitz

Research output: Contribution to journalArticlepeer-review

74 Scopus citations

Abstract

The authors sought to determine whether subsyndromal delirium is a qualitatively distinct clinical entity or a spectrum of cognitive and behavioral abnormalities. They conducted a prospective, longitudinal study on 325 patients in an acute care hospital with 3- and 6-month follow-ups. Patients were classified into one of three groups: those meeting full DSM criteria for delirium, those with subsyndromal delirium, and those with no symptoms of delirium. There were no differences in risk factors between those developing DSM-defined delirium or subsyndromal delirium. Number of independent risk factors was a significant predictor of delirium. Patients with subsyndromal delirium fall on a continuum between those with DSM- defined delirium and those with no symptoms of delirium. These data suggest that delirium does represent a spectrum of neurobehavioral impairment. Patients with symptoms of subsyndromal delirium are at risk for considerable morbidity; therefore clinicians should attempt to reduce and treat the onset of occurrence of subsyndromal delirium.

Original languageEnglish
Pages (from-to)320-329
Number of pages10
JournalAmerican Journal of Geriatric Psychiatry
Volume4
Issue number4
DOIs
StatePublished - 1996
Externally publishedYes

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