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Fresh whole blood from walking blood banks for patients with traumatic hemorrhagic shock: A systematic review and meta-analysis.
Naumann, David N; Boulton, Adam J; Sandhu, Amrit; Campbell, Kieran; Charlton, William; Gurney, Jennifer M; Martin, Matthew J; Scorer, Tom; Doughty, Heidi.
  • Naumann DN; From the Academic Department of Military Surgery and Trauma (D.N.N.), Royal Centre for Defence Medicine; and University Hospitals Birmingham NHS Foundation Trust (D.N.N.), Birmingham, United Kingdom; Warwick Medical School (A.J.B.), University of Warwick, Coventry; and Academic Department of Anaesthesia, Critical Care, Pain and Resuscitation (A.J.B.), Heartlands Hospital, University Hospital Birmingham NHS Foundation Trust; Academic Department of Military General Practice (A.S., K.C., W.C.), Roy
J Trauma Acute Care Surg ; 89(4): 792-800, 2020 10.
Article in English | MEDLINE | ID: covidwho-616206
Semantic information from SemMedBD (by NLM)
1. Shoc PROCESS_OF C0030705
Subject
Shoc
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PROCESS_OF
Object
C0030705
2. Patients LOCATION_OF peripheral blood
Subject
Patients
Predicate
LOCATION_OF
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peripheral blood
3. Shock, Traumatic PROCESS_OF Patients
Subject
Shock, Traumatic
Predicate
PROCESS_OF
Object
Patients
4. Patients LOCATION_OF peripheral blood
Subject
Patients
Predicate
LOCATION_OF
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peripheral blood
ABSTRACT

BACKGROUND:

Whole blood is optimal for resuscitation of traumatic hemorrhage. Walking Blood Banks provide fresh whole blood (FWB) where conventional blood components or stored, tested whole blood are not readily available. There is an increasing interest in this as an emergency resilience measure for isolated communities and during crises including the coronavirus disease 2019 pandemic. We conducted a systematic review and meta-analysis of the available evidence to inform practice.

METHODS:

Standard systematic review methodology was used to obtain studies that reported the delivery of FWB (PROSPERO registry CRD42019153849). Studies that only reported whole blood from conventional blood banking were excluded. For outcomes, odds ratios (ORs) and 95% confidence interval (CI) were calculated using random-effects modeling because of high risk of heterogeneity. Quality of evidence was assessed using the Grading of Recommendations, Assessment, Development, and Evaluation system.

RESULTS:

Twenty-seven studies published from 2006 to 2020 reported >10,000 U of FWB for >3,000 patients (precise values not available for all studies). Evidence for studies was "low" or "very low" except for one study, which was "moderate" in quality. Fresh whole blood patients were more severely injured than non-FWB patients. Overall, survival was equivalent between FWB and non-FWB groups for eight studies that compared these (OR, 1.00 [95% CI, 0.65-1.55]; p = 0.61). However, the highest quality study (matched groups for physiological and injury characteristics) reported an adjusted OR of 0.27 (95% CI, 0.13-0.58) for mortality for the FWB group (p < 0.01).

CONCLUSION:

Thousands of units of FWB from Walking Blood Banks have been transfused in patients following life-threatening hemorrhage. Survival is equivalent for FWB resuscitation when compared with non-FWB, even when patients were more severely injured. Evidence is scarce and of relative low quality and may underestimate potential adverse events. Whereas Walking Blood Banks may be an attractive resilience measure, caution is still advised. Walking Blood Banks should be subject to prospective evaluation to optimize care and inform policy. LEVEL OF EVIDENCE Systematic/therapeutic, level 3.
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Full text: Available Collection: International databases Database: MEDLINE Main subject: Resuscitation / Shock, Hemorrhagic / Shock, Traumatic / Blood Banks / Blood Transfusion Type of study: Diagnostic study / Etiology study / Clinical Practice Guide / Prognostic study / Randomized controlled trials / Reviews / Systematic review Topics: Long Covid Limits: Humans Language: English Journal: J Trauma Acute Care Surg Year: 2020 Document Type: Article

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Full text: Available Collection: International databases Database: MEDLINE Main subject: Resuscitation / Shock, Hemorrhagic / Shock, Traumatic / Blood Banks / Blood Transfusion Type of study: Diagnostic study / Etiology study / Clinical Practice Guide / Prognostic study / Randomized controlled trials / Reviews / Systematic review Topics: Long Covid Limits: Humans Language: English Journal: J Trauma Acute Care Surg Year: 2020 Document Type: Article