BACKGROUND: Delirium is often considered a transient cognitive syndrome. Its effect on long-term physical function, however, has not been well defined. METHODS: In a prospective study of 325 hospitalized community and nursing home elderly, we analyzed the effect of in-hospital delirium on subsequent physical function. ADL performance was assessed prior to admission, and at 3 and 6 months after hospital discharge. RESULTS: There was a strong univariate (unadjusted) association between incident delirium and functional decline (p < .02). Delirious subjects lost a mean of almost one ADL, as measured 3 months after hospital discharge. Using multivariate linear regression analysis, with adjusted change in function as the dependent variable, delirium persisted as the sole predictor of loss of function (p = .009) at 3 months after discharge. The functional decline persisted at 6 months after hospital discharge. CONCLUSION: This finding of a nontransient, perhaps permanent consequence of delirium invites reexamination of the definition of delirium from that of an acute, reversible syndrome to one of acute onset with long-term sequelae.
BACKGROUND:Delirium is often considered a transient cognitive syndrome. Its effect on long-term physical function, however, has not been well defined. METHODS: In a prospective study of 325 hospitalized community and nursing home elderly, we analyzed the effect of in-hospital delirium on subsequent physical function. ADL performance was assessed prior to admission, and at 3 and 6 months after hospital discharge. RESULTS: There was a strong univariate (unadjusted) association between incident delirium and functional decline (p < .02). Delirious subjects lost a mean of almost one ADL, as measured 3 months after hospital discharge. Using multivariate linear regression analysis, with adjusted change in function as the dependent variable, delirium persisted as the sole predictor of loss of function (p = .009) at 3 months after discharge. The functional decline persisted at 6 months after hospital discharge. CONCLUSION: This finding of a nontransient, perhaps permanent consequence of delirium invites reexamination of the definition of delirium from that of an acute, reversible syndrome to one of acute onset with long-term sequelae.
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Authors: A Morandi; P Pandharipande; M Trabucchi; R Rozzini; G Mistraletti; A C Trompeo; C Gregoretti; L Gattinoni; M V Ranieri; L Brochard; D Annane; C Putensen; U Guenther; P Fuentes; E Tobar; A R Anzueto; A Esteban; Y Skrobik; J I F Salluh; M Soares; C Granja; A Stubhaug; S E de Rooij; E Wesley Ely Journal: Intensive Care Med Date: 2008-06-18 Impact factor: 17.440
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