Observational studyBMC anesthesiology2025
Capture efficiency of CONTRAfluran
Observational study in BMC anesthesiology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundVolatile anaesthetics are potent greenhouse gases. Recapturing volatile anaesthetics using active charcoal absorbers on the exhaust port of anaesthesia machines might reduce their negative climate impact. Previous studies investigating the capture efficiency of absorbers have been performed mostly under circumstances that differ from everyday clinical routine. We here investigated the capture efficiency of the CONTRAfluran
methodsIn this prospective single-centre study, we collected 20 consecutive CONTRAfluran
resultsWe monitored 738 balanced anaesthesia cases. A total of 14.2 kg sevoflurane was used and 4.9 kg could be recovered, yielding a capture efficiency of 34%. The capture efficiencies differed significantly between the ORs, with 47.8% in the OR with shorter anaesthesia durations and frequently inhaled inductions versus 21.4% in the OR with longer anaesthesia durations. We saw a 3% weight loss over time during storage.
conclusionsIf CONTRAfluran
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.