Abstract
Delirium has been shown to increase the length of mechanical ventilation, intensive care unit (ICU) and hospital length of stay, and rates of post-discharge institutionalization and in-hospital mortality.1,2 The incidence of delirium in nonventilated patients in the ICU has been shown to be approximately 50%, and the incidence in ventilated patients is even higher at approximately 80%.3,4 Several risk factors have been associated with the development of delirium, including patient age, baseline cognitive impairment, severity of illness, history of alcoholism, elevated creatinine, hypertension, and benzodiazepine use.
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