Resumo

SANTILLANA JUAREZ, Andrés et al. Procalcitonin clearance in patients with systemic inflammatory response syndrome and its association with the development of delirium. Med. crít. (Col. Mex. Med. Crít.) [online]. 2018, vol.32, n.4, pp.225-231.  Epub 30-Jun-2020. ISSN 2448-8909.

Delirium is a clinical entity characterized by an acute disfunction on patients’ mental state, with altered cognition, inatention, and fluctuating course. Delirium has a high prevalence in critically ill patients, with important prognostic implications. Systemic inflammation plays an important role on the development of delirium and acute cerebral disfunction. The study’s objective was to find a correlation between clinical markers of inflammation, specifically procalcitonin clearance, and its association with delirium on intensive care unit patients with Systemic Inflammatory Response Syndrome (SIRS). Studied as a reflection of delirium or coma free days by CAM-ICU that the patient experienced during it’s intensive care unit stay. This retrospective study enrolled 126 patients, with a hospital mortality of 23.01% and a 55.2% prevalence of delirium as detected by CAM-ICU. Patients with delirium had higher levels of procalcitonin on enrollment, as well as at 24, 48 and 72 hours compared to those who did not develop delirium during their ICU stay. There was no difference between C reactive protein or procalcitonin clearance. Higher CRP levels were associated with an decrease in delirium and coma free days (OR 0.97, CI 0.96-0.99; p = 0.0154), a higher procalcitoin clearance at 48 hours was associated with an increase in delirium and coma free days (OR 1.17, IC 1.02-1.35; p = 0.0261). In conclusion, ICU patients with inflammatory response syndrome who develop delirium have a higher risk of developing delirium if inflammatory serum biomarker are elevated, and have a lower chance of having neurologically normal days.

Palavras-chave : Delirium; procalcitonin; sepsis; systemic inflammatory response; mortality; CAM-ICU.

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