ArticleActa anaesthesiologica Scandinavica2025
Comparison of venous and calculated blood gas values to arterial values in critically ill patients.
Article in Acta anaesthesiologica Scandinavica, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
3 citing papers in PubMed.
- Severe alkalemia in the emergency department : Acid-base patterns, clinical presentation and short-term outcomes in hospitalized patients.Wiener klinische Wochenschrift · 2026Article
- Comparison of venous and calculated blood gas values to arterial values in critically ill patients.Acta anaesthesiologica Scandinavica · 2025Article
- Blood gas analysis: Clinical applications, interpretation and future directions (Review).Medicine internationalReview
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
Abstract
backgroundArterial blood gas (ABG) values are important in the assessment of critically ill patients. However, arterial puncture may be challenging to perform in these patients. The venous-to-arterial conversion method (v-TAC) is used to convert venous blood gas values to calculated values meant to resemble arterial values. Calculated pH and partial pressure of carbon dioxide (PCO
methodsCritically ill adult patients with abnormal arterial pH (<7.35 or >7.45) admitted to an intensive care unit were included in this study. Patients were divided in groups based on arterial pH (alkalemia, moderate acidaemia and severe acidaemia). ABG samples were obtained from arterial catheters and venous samples simultaneously from peripheral or central venous catheters. Venous blood gas values were converted to calculated values using the v-TAC software. Both venous and calculated values of pH, PCO
resultsArterial and venous sample pairs were obtained from 28 patients, and 24 venous values were converted using the v-TAC method. Scatterplots showed similar congruency of venous and calculated pH and PCO
conclusionVenous and calculated pH and PCO
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.