Prevalence of delirium in a geriatric convalescence hospitalization unit: Patient's clinical characteristics and risk precipitating factor analysis

M. Pi-Figueras, A. Aguilera, M. Arellano, R. Miralles, P. Garcia-Caselles, R. Torres, A. M. Cervera

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Resum

The aim was to evaluate the prevalence of delirium among patients discharged from an acute care hospital and admitted to a geriatric convalescence unit (GCU), and to analyze patient's characteristics and risk precipitating factors. Sixty-eight patients were analyzed during a 2-week period. The confusion assessment method (CAM) was used to detect delirium. The precipitating factors evaluated were: major surgery-intensive care unit (ICU) stay, pulmonary and heart failure, acute infections, metabolic disorders/anemia, psychoactive medications, other drugs, severe pain, changing environmental influences and others. According to CAM, fifteen patients presented delirium (22%), and in 14 of them (93.3%) the delirium was developed before admission at GCU. The precipitating factors in the studied population were the following: changing environmental influences in 66 patients (97%) (15 with delirium and 51 without delirium); other drugs 56 (82.3%) (11 vs. 45); others 56 (82.3%) (9 vs. 24); psychoactive medications 50 (73.5%) (12 vs. 38); acute infections 48 (70.5%) (13 vs. 35); metabolic disorders/anemia 40 (58.8%) (9 vs. 31); major surgery-ICU stay 28 (41.1%) (8 vs. 20); severe pain 26 (38.2%) (6 vs. 20); pulmonary and heart failure 22 (32.3%) (5 vs. 17). The univariant analysis showed that, none of the precipitating factors studied was significantly related to delirium. Seventy-two patients (91.1%) had simultaneously >3 precipitating factors. There were 16 patients with >6 precipitating factors, 7 of 15 with delirium and 9 of the 53 without delirium (46.6% vs 16.9%) (p < 0.05). The prevalence of delirium has been 22%. Most of the patients had developed delirium before the admission at GCU. A high proportion of patients had >3 precipitating factors. In the study the presence of > 6 precipitating factors simultaneously has been significantly related to delirium.
Idioma originalAnglès
Pàgines (de-a)333-337
RevistaArchives of Gerontology and Geriatrics
Volum38
NúmeroSUPPL.
DOIs
Estat de la publicacióPublicada - 1 de gen. 2004

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