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Transfusion of platelets, but not of red blood cells, is independently associated with nosocomial infections in the critically ill.

Abstract：

BACKGROUND:Red blood cell (RBC) transfusion has been associated with nosocomial infection in the critically ill patients. However, this association may be confounded by length of stay, as prolonged intensive care unit (ICU stay) increases both risk of infection and risk of transfusion. Also, it is not known whether specific blood products have differential risks. METHODS:In this prospective multicentre cohort study, the risk of bacterial infections associated with transfusion products in critically ill (ICU) patients was determined in an integrated statistical model, using Cox proportional hazard analysis to account for attrition bias. In all acutely admitted patients with a length of stay of >48 h between 1 January 2011 and 31 December 2012, the occurrence of nosocomial infections in the ICU was prospectively monitored using CDC criteria. RESULTS:Of 3502 screened patients, 476 (13.6 %) developed a nosocomial infection. These patients had higher APACHE IV scores, had longer ICU length of stay and were more frequently transfused compared to patients without an infection. Logistic regression showed that RBC transfusion was a risk factor for infection [odds ratio (OR) 1.98, 95 % confidence interval (CI) 1.54-2.55, p < 0.001], as well the number of RBC units transfused (OR 1.04, 95 % CI 1.03-1.06, p < 0.001). However, these associations disappeared in the Cox proportional hazard analysis. In contrast, we found an association between plasma transfusion and infection [hazard ratio (HR) 1.36, 95 % CI 1.10-1.69, p = 0.004] and between platelet transfusion and infection (HR 1.46, 95 % CI 1.18-1.81, p < 0.001). However, only platelet transfusion was associated with infection independently from other transfusion products (HR 1.40, 95 % CI 1.03-1.90, p = 0.03). CONCLUSIONS:In critically ill patients, transfusion of platelets, but not of RBCs and plasma, is an independent risk factor for acquiring a nosocomial infection.

journal_name

Ann Intensive Care

journal_title

Annals of intensive care

authors

Engele LJ,Straat M,van Rooijen IHM,de Vooght KMK,Cremer OL,Schultz MJ,Bos LDJ,Juffermans NP,MARS Consortium.

doi

10.1186/s13613-016-0173-1

subject

Has Abstract

pub_date

2016-12-01 00:00:00

pages

issue

issn

2110-5820

pii

10.1186/s13613-016-0173-1

journal_volume

pub_type

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Transfusion of platelets, but not of red blood cells, is independently associated with nosocomial infections in the critically ill.