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Effects of red blood cell storage time on transfused patients in the ICU —protocol for a systematic review
Author(s) -
Rygård S. L.,
Jonsson A. B.,
Madsen M. B.,
Perner A.,
Holst L. B.,
Johansson P. I.,
Wetterslev J.
Publication year - 2017
Publication title -
acta anaesthesiologica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.738
H-Index - 107
eISSN - 1399-6576
pISSN - 0001-5172
DOI - 10.1111/aas.12991
Subject(s) - medicine , observational study , medline , cochrane library , systematic review , cinahl , adverse effect , intensive care medicine , randomized controlled trial , intensive care unit , meta analysis , clinical trial , grading (engineering) , protocol (science) , emergency medicine , alternative medicine , psychological intervention , pathology , law , engineering , civil engineering , psychiatry , political science
Background Patients in the intensive care unit ( ICU ) are often anaemic due to blood loss, impaired red blood cell ( RBC ) production and increased RBC destruction. In some studies, more than half of the patients were treated with RBC transfusion. During storage, the RBC and the storage medium undergo changes, which lead to impaired transportation and delivery of oxygen and may also promote an inflammatory response. Divergent results on the clinical consequences of storage have been reported in both observational studies and randomised trials. Therefore, we aim to gather and review the present evidence to assess the effects of shorter vs. longer storage time of transfused RBC s for ICU patients. Methods We will conduct a systematic review with meta‐analyses and trial sequential analyses of randomised clinical trials, and also include results of severe adverse events from large observational studies. Participants will be adult patients admitted to an ICU and treated with shorter vs. longer stored RBC units. We will systematically search the Cochrane Library, MEDLINE , Embase, BIOSIS , CINAHL and Science Citation Index for relevant literature, and we will follow the recommendation by the Cochrane Collaboration and the Preferred Reporting Items for Systemtic Review and Meta‐Analysis ( PRISMA )‐statement. We will assess the risk of bias and random errors, and we will use the Grading of Recommendations, Assessment, Development and Evaluation ( GRADE ) approach to evaluate the overall quality of evidence. Conclusion We need a high‐quality systematic review to summarise the clinical consequences of RBC storage time among ICU patients.