<abstract xmlns="http://www.w3.org/1999/xhtml"><sec id="j_raon-2015-0046_s_333_w2aab3b8c54b1b7b1aab1c15b1Aa"><h3>Background</h3><p>Stored red blood cells (RBCs) accumulate biochemical and biophysical changes, known as storage lesion. The aim of this study was to re-challenge current data that anaemia in chronically anaemic haematology patients is not associated with low skeletal muscle tissue oxygen (StO<sub>2</sub>), and that RBC storage age does not influence the tissue response after ischaemic provocation, using near-infrared spectroscopy.</p></sec><sec id="j_raon-2015-0046_s_334_w2aab3b8c54b1b7b1aab1c15b2Aa"><h3>Patients and methods</h3><p>Twenty-four chronic anaemic haematology patients were included. Thenar skeletal muscle StO<sub>2</sub> was measured at rest (basal StO<sub>2</sub>), with vascular occlusion testing (upslope StO<sub>2</sub>, maximum StO<sub>2</sub>) before and after transfusion.</p></sec><sec id="j_raon-2015-0046_s_335_w2aab3b8c54b1b7b1aab1c15b3Aa"><h3>Results</h3><p>Basal StO<sub>2</sub> was low (53% ± 7%). Average RBC storage time was 10.5 ± 3.9 days. Effects of RBC transfusions were as follows: basal StO<sub>2</sub> and upslope StO<sub>2</sub> did not change significantly; maximum StO<sub>2</sub> increased compared to baseline (64 ± 14% <italic>vs</italic>. 59 ± 10%, p = 0.049). Change of basal StO<sub>2</sub>, upslope StO<sub>2</sub> and maximum StO<sub>2</sub> was negatively related to age of RBCs. The decrease of maximum StO<sub>2</sub> was predicted (sensitivity 70%, specificity 100%), after receiving RBCs ≥ 10days old.</p></sec><sec id="j_raon-2015-0046_s_336_w2aab3b8c54b1b7b1aab1c15b4Aa"><h3>Discussion</h3><p>Resting skeletal muscle StO<sub>2</sub> in chronic anaemic patients is low. RBC storage time affects skeletal muscle StO<sub>2</sub> in the resting period and after ischaemic provocation.</p></sec></abstract>

BackgroundStored red blood cells (RBCs) accumulate biochemical and biophysical changes, known as storage lesion. The aim of this study was to re-challenge current data that anaemia in chronically anaemic haematology patients is not associated with low skeletal muscle tissue oxygen (StO2), and that RBC storage age does not influence the tissue response after ischaemic provocation, using near-infrared spectroscopy.Patients and methodsTwenty-four chronic anaemic haematology patients were included. Thenar skeletal muscle StO2 was measured at rest (basal StO2), with vascular occlusion testing (upslope StO2, maximum StO2) before and after transfusion.ResultsBasal StO2 was low (53% ± 7%). Average RBC storage time was 10.5 ± 3.9 days. Effects of RBC transfusions were as follows: basal StO2 and upslope StO2 did not change significantly; maximum StO2 increased compared to baseline (64 ± 14% vs. 59 ± 10%, p = 0.049). Change of basal StO2, upslope StO2 and maximum StO2 was negatively related to age of RBCs. The decrease of maximum StO2 was predicted (sensitivity 70%, specificity 100%), after receiving RBCs ≥ 10days old.DiscussionResting skeletal muscle StO2 in chronic anaemic patients is low. RBC storage time affects skeletal muscle StO2 in the resting period and after ischaemic provocation.

Red blood cell transfusion and skeletal muscle tissue oxygenation in anaemic haematologic outpatients

Clinical Department for Anaesthesiology and Surgical Intensive Care, University Medical Centre Ljubljana,

Faculty of Medicine, University of Ljubljana, Ljubljana,

Emergency Department, University Medical Centre Ljubljana, Ljubljana,

Radiology and Oncology

This article is distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

BackgroundStored red blood cells (RBCs) accumulate biochemical and biophysical changes, known as storage lesion. The aim of this study was to re-challenge...

Red blood cell transfusion and skeletal muscle tissue oxygenation in anaemic haematologic outpatients

Article Category: Research Article

Publié en ligne: 09 nov. 2016

Pages: 449 - 455

Reçu: 03 juil. 2015

Accepté: 06 août 2015

DOI: https://doi.org/10.1515/raon-2015-0046

© 2016 Radiol Oncol

This article is distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.