ArticleScandinavian journal of trauma, resuscitation and emergency medicine2023
Prehospital blood gas analyses in acute patients treated by a ground-based physician-manned emergency unit: a cohort study.
Article in Scandinavian journal of trauma, resuscitation and emergency medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 11 citations in OpenAlex.
- Prehospital lactate, transfer time, and early mortality across emergency diagnostic categories.Critical care (London, England) · 2026Observational
- Relevance of blood gas analysis in emergency medical services: an emergency physician's assessment.Die Anaesthesiologie · 2026Article
- Diagnostic agreement between prehospital and in-hospital diagnoses for dyspnea: a retrospective study in a French prehospital emergency medical service.BMC emergency medicine · 2026Article
- Development and evaluation of a machine learning prediction model for short-term mortality in patients with diabetes or hyperglycemia at emergency department admission.Cardiovascular diabetology · 2025Article
- Mortality Prediction of Biochemical Parameters in Patients Intubated in the Emergency Department.Cureus · 2024Article
- Added predictive value of prehospital measurement of point-of-care lactate in an adult general EMS population in Sweden: a multi-centre observational study.Scandinavian journal of trauma, resuscitation and emergency medicine · 2024Observational
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Authors and funding
5 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe prehospital patients treated by ambulances and mobile emergency care units (MECU) are potentially critically ill or injured. Knowing the risks of serious outcomes in these patients is important for guiding their treatment. Some settings allow for prehospital arterial blood gas analyses. This study aimed to assess the outcomes of prehospital patients in relation to their prehospitally measured lactate, pH, and CO
methodsThis register-based cohort study included patients with one or more prehospital blood gas analyses during their prehospital treatment by a physician-manned MECU, from January 2015 to December 2018. The blood samples were analyzed on an ABL90 Flex analyzer. Absolute values with percentages and odds ratios (OR) with 95% confidence intervals (CI) were calculated for the primary and secondary outcomes within prespecified subgroups.
resultsThe study included 745 patients, with an overall 7-day mortality rate of 20.0%. LACTATE LEVEL: The 7-day mortality rates were 11.5% in patients with normal lactate levels (< 2.0 mmol/L), 14.4% with intermediate lactate levels (2.0-3.9 mmol/L), and 33.0% with high lactate levels (≥ 4.0 mmol/L). This corresponded to an OR of 1.30 (95% CI: 0.75-2.24) in the intermediate lactate group (2.0-3.9 mmol/L) and an OR of 3.77 (95% CI: 2.44-5.85) in the high lactate group (≥ 4.0 mmol/L), compared to the reference group with normal lactate. PH LEVEL: The ORs of 7-day mortality rates were 4.82 (95% CI: 3.00-7.75) in patients with blood pH of < 7.35 and 1.33 (95% CI: 0.65-2.72) in patients with blood pH > 7.45, compared to the reference group with normal pH (7.35-7.45). CO2 LEVEL : The ORs of 7-day mortality rates were 2.54 (95% CI: 1.45-4.46) in patients with blood CO
conclusionsThis study found a strong correlation between increasing 7-day mortality rates and high blood lactate levels, low levels of pH, and abnormal CO
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