Prehospital whole blood resuscitation does not differ from standard blood components in 24-hour mortalityWhole blood and standard blood components show similar survival rates

The American journal of emergency medicine Published November 4, 2026 Study authors: Khan Yasir Y, Alzahrani Abdulelah A, Alghamdi Ruba S, Alshammasi Zainab R, AlAwadh Bassam W, Alghamd… PubMed ↗ DOI ↗ Editorial oversight: Dr. Lars van Dijk, PhD · Surgical, Procedural & Diagnostic

AI-generated summary of the cited source, checked by automated accuracy review. How we work

Key Takeaway

Note that prehospital whole blood does not significantly differ from standard blood components in 24-hour mortality.

This meta-analysis evaluated the efficacy of prehospital whole blood (WB) resuscitation compared to standard care blood components (BC) in adult patients with traumatic haemorrhagic shock. The analysis included 3 trials with a total sample size of 2048 patients. The primary outcome of 24-h all-cause mortality showed no significant difference between the two groups (OR 1.12; 95% CI 0.81-1.55; p = 0.49).

Secondary outcomes also showed no significant differences. The 28-30-day mortality was comparable between groups (OR 1.15; 95% CI 0.90-1.47; p = 0.28). Additionally, the requirement for massive transfusion within 24 hours showed no significant difference (OR 1.09; 95% CI 0.80-1.50). Data regarding thromboembolic complications were not reported as significant differences.

The authors note that the findings warrant caution because the meta-analysis only included three trials of limited size and quality. Clinical application of these results should be interpreted with caution given the limited evidence base. Prehospital WB did not differ significantly from BC in 24-h or 28-30-day mortality outcomes.

When a person suffers from traumatic hemorrhagic shock, every second counts. Doctors must decide quickly how to replace lost blood before the patient reaches the hospital. This study looked at whether using whole blood—which contains all parts of the blood—offered a survival advantage over standard blood components like red cells or plasma.

Researchers analyzed data from over 2,000 adult patients. They compared those who received whole blood to those who received standard blood components. The results showed no significant difference in survival rates at 24 hours or between 28 and 30 days. Additionally, the rate of massive transfusions and complications like blood clots were similar in both groups.

While the data provides a clear comparison, the researchers noted that the findings should be viewed with caution. The analysis only included three trials, which were limited in size and quality. Because the evidence is still limited, these results do not yet provide a definitive rule for every emergency situation.

What this means for you:

Whole blood and standard blood components show similar survival rates for patients in traumatic shock.

Common questions

Does whole blood help patients survive longer than standard blood components?

The study found no significant difference in survival rates between the two methods. Patients who received whole blood had similar 24-hour and 28-to-30-day survival rates compared to those who received standard blood components. Because the study only included three trials of limited size and quality, the findings warrant caution.

Are there more complications with whole blood?

The study found no significant difference in thromboembolic complications, such as deep-vein thrombosis, pulmonary embolism, or ischemic stroke, between the two treatments. However, because the data comes from only three trials of limited size and quality, these results are not definitive.

Who is this finding for?

This research focuses on adult patients suffering from traumatic hemorrhagic shock in prehospital settings. It compares the use of whole blood versus standard blood components to see if one method improves survival or reduces the need for massive transfusions.

Study Details

Study typeMeta analysis

Sample sizen = 2,048

EvidenceLevel 1

PublishedNov 2026

PMID42526297

View Original Abstract ↓

OBJECTIVE: To evaluate the efficacy and safety of prehospital whole blood (WB) resuscitation compared with the standard care blood components (BC) in adult patients with traumatic haemorrhagic shock. METHODS: We included RCTs of adult patients with traumatic haemorrhagic shock requiring prehospital blood; non-randomised studies, non-traumatic haemorrhage, and combat casualties were excluded. PubMed/MEDLINE, CENTRAL, Embase, Scopus, the Web of Science, and ClinicalTrials.gov were searched from inception to 20 May 2026. Two reviewers assessed risk of bias using the Cochrane RoB 2 tool (cluster-randomised variant where appropriate). Dichotomous outcomes were pooled as odds ratios by generic inverse-variance under a random-effects model. The primary outcome of this review was all-cause mortality at 24 h after randomisation. RESULTS: Three RCTs met the eligibility criteria, randomising 2048 patients (1695 in the trials' primary-analysis populations). Prehospital WB did not differ significantly from BC in 24-h all-cause mortality (OR 1.12, 95% CI 0.81-1.55; p = 0.49) or 28-30-day mortality (OR 1.15, 95% CI 0.90-1.47; p = 0.28). Massive transfusion within 24 h (OR 1.09, 95% CI 0.80-1.50) and thromboembolic complications (deep-vein thrombosis, pulmonary embolism, and ischaemic stroke) likewise showed no significant difference, with all confidence intervals crossing the null. Statistical heterogeneity was absent throughout (I = 0%). CONCLUSION: Among adults with traumatic haemorrhagic shock, pooled randomised evidence showed no significant mortality benefit for prehospital whole blood over standard blood-component therapy. Because much of the observational evidence compared whole blood with crystalloid or no transfusion rather than with components, these randomised data refine rather than overturn that signal. Given only three trials of limited size and quality, the findings warrant caution, and adequately powered randomised trials are needed to confirm them and to identify the subgroups most likely to benefit.

Prehospital whole blood resuscitation does not differ from standard blood components in 24-hour mortalityWhole blood and standard blood components show similar survival rates

Common questions

Study Details

Intraosseous route for out-of-hospital cardiac arrest linked to lower outcomes than intravenous access

Using a bone needle instead of a vein line lowers survival chances for cardiac arrest patients

Clinical research that matters. Delivered to your inbox.

Prehospital whole blood resuscitation does not differ from standard blood components in 24-hour mortalityWhole blood and standard blood components show similar survival rates

Common questions

Study Details

Intraosseous route for out-of-hospital cardiac arrest linked to lower outcomes than intravenous access

Using a bone needle instead of a vein line lowers survival chances for cardiac arrest patients

Clinical research that matters. Delivered to your inbox.

Related in Emergency Medicine

From Other Specialties