PMID- 24730703 OWN - NLM STAT- MEDLINE DCOM- 20141201 LR - 20181202 IS - 1423-0410 (Electronic) IS - 0042-9007 (Linking) VI - 107 IP - 3 DP - 2014 Oct TI - Quality and safety of red blood cells stored in two additive solutions subjected to multiple room temperature exposures. PG - 239-46 LID - 10.1111/vox.12154 [doi] AB - BACKGROUND AND OBJECTIVES: Many international standards state that red blood cell (RBC) products should be discarded if left out of controlled temperature storage for longer than 30 min to reduce the risk of bacterial growth and RBC loss of viability. This study aimed to verify whether repeated short-time exposures to room temperature (RT) influence RBCs quality and bacterial proliferation. MATERIALS AND METHODS: Saline-adenine-glucose-mannitol (SAGM) and AS-3 RBC units were split and exposed to RT for 30 or 60 min on day 2, 7, 14, 21, and 42 of storage while reference units remained stored at 1-6 degrees C. Red blood cell in vitro quality parameters were evaluated after each exposure. In a second experiment, SAGM and AS-3 RBC units were split and inoculated with Staphylococcus epidermidis (5 CFU/ml), Serratia marcescens (1 CFU/ml), and Serratia liquefaciens (1 CFU/ml). Reference units remained in storage while test units were exposed as described previously. Bacterial concentrations were investigated after each exposure. RESULTS: No differences were noticed between reference and test units in any of the in vitro parameters investigated. S. epidermidis did not grow in either reference or exposed RBCs. While S. marcescens did not grow in AS-3, bacterial growth was observed in RT-exposed SAGM RBCs on day 42. Similar growth was obtained for S. liquefaciens in the two additive solutions for both reference and test units. CONCLUSION: Short-time exposures to RT do not affect RBC quality and do not significantly influence bacterial growth. An expansion of the '30-minute' rule to 60 min should be considered by regulatory agencies. CI - (c) 2014 International Society of Blood Transfusion. FAU - de Grandmont, M J AU - de Grandmont MJ AD - Hema-Quebec, Operational Research, R&D, Quebec, QC, Canada. FAU - Ducas, E AU - Ducas E FAU - Girard, M AU - Girard M FAU - Methot, M AU - Methot M FAU - Brien, M AU - Brien M FAU - Thibault, L AU - Thibault L LA - eng PT - Journal Article DEP - 20140415 PL - England TA - Vox Sang JT - Vox sanguinis JID - 0413606 RN - 0 (Solutions) RN - 3OWL53L36A (Mannitol) RN - 451W47IQ8X (Sodium Chloride) SB - IM MH - Blood Donors MH - Blood Preservation/adverse effects/*standards MH - Cryopreservation MH - Erythrocytes/*microbiology MH - Humans MH - Mannitol MH - Safety MH - Serratia liquefaciens/growth & development MH - Serratia marcescens/growth & development MH - Sodium Chloride MH - Solutions MH - Staphylococcus epidermidis/growth & development MH - *Temperature OTO - NOTNLM OT - 30-minute rule OT - bacterial growth in RBCs OT - red blood cell quality OT - storage lesions OT - temperature deviations EDAT- 2014/04/16 06:00 MHDA- 2014/12/15 06:00 CRDT- 2014/04/16 06:00 PHST- 2013/09/22 00:00 [received] PHST- 2014/03/13 00:00 [revised] PHST- 2014/03/20 00:00 [accepted] PHST- 2014/04/16 06:00 [entrez] PHST- 2014/04/16 06:00 [pubmed] PHST- 2014/12/15 06:00 [medline] AID - 10.1111/vox.12154 [doi] PST - ppublish SO - Vox Sang. 2014 Oct;107(3):239-46. doi: 10.1111/vox.12154. Epub 2014 Apr 15.