• Luis A Sánchez-Hurtado, Nancy Hernández-Sánchez, Mario Del Moral-Armengol, Humberto Guevara-García, Francisco J García-Guillén, Ángel Herrera-Gómez, and Silvio A Ñamendys-Silva.
• Department of Critical Care Medicine, Instituto Nacional de Cancerología, Mexico City, Mexico.
• Pain Res Manag. 2018 Jan 1; 2018: 4193275.

ObjectiveThe aim of this study was to estimate the incidence of delirium and its risk factors among critically ill cancer patients in an intensive care unit (ICU).Materials And MethodsThis is a prospective cohort study. The Confusion Assessment Method for the Intensive Care Unit (CAM-ICU) was measured daily at morning to diagnose delirium by a physician. Delirium was diagnosed when the daily was positive during a patient's ICU stay. All patients were followed until they were discharged from the ICU. Using logistic regression, we estimated potential risk factors for developing delirium. The primary outcome was the development of ICU delirium.ResultsThere were 109 patients included in the study. Patients had a mean age of 48.6 ± 18.07 years, and the main reason for admission to the ICU was septic shock (40.4%). The incidence of delirium was 22.9%. The mortality among all subjects was 15.6%; the mortality rate in patients who developed delirium was 12%. The only variable that had an association with the development of delirium in the ICU was the days of use of mechanical ventilation (OR: 1.06; CI 95%: 0.99-1.13;p=0.07).ConclusionDelirium is a frequent condition in critically ill cancer patients admitted to the ICU. The duration in days of mechanical ventilation is potential risk factors for developing delirium during an ICU stay. Delirium was not associated with a higher rate of mortality in this group of patients.

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