Evidence map›Paper›PMID 32851513›Full record

Trial reportJournal of anesthesia2020

Desflurane and sevoflurane concentrations in blood passing through the oxygenator during cardiopulmonary bypass: a randomized prospective pilot study.

Takahiro Tamura, Atsushi Mori, Akira Ishii, Masahiko Ando, Yoko Kubo, Kimitoshi Nishiwaki

Open access · bronzeAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Journal of anesthesia, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.0field-weighted citation impact, top 24% of its field
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 10 citations in OpenAlex.

  1. Observational
  2. Article
  3. Review
  4. Review
  5. The MAK collection for occupational health and safety · 2025
    Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Reply to the letter.Journal of anesthesia · 2021
    Article
  11. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

Takahiro TamuraDepartment of Anesthesiology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-Ku, Nagoya, 466-8550, Japan. takahiro@med.nagoya-u.ac.jp.ORCID http://orcid.org/0000-0001-6916-9988
Atsushi MoriDepartment of Perioperative Management System, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Akira IshiiDepartment of Legal Medicine and Bioethics, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Masahiko AndoCenter for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya, Japan.
Yoko KuboDepartment of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan.
Kimitoshi NishiwakiDepartment of Anesthesiology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-Ku, Nagoya, 466-8550, Japan.
Nagoya University · JPNagoya University Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeVolatile anesthetics (VAs) protect myocardial cells in cardiovascular surgery. A recent clinical trial of cardiopulmonary bypass (CPB) surgery reported no significant difference in mortality rates between the use of VAs and total intravenous anesthetics at 1 year postoperatively. However, oxygenator function may affect the VA pharmacokinetics. Thus, we measured the VA blood concentrations during CPB in patients managed with four different microporous polypropylene hollow fiber membrane oxygenators.

methodsTwenty-four patients scheduled for elective CPB were randomly allocated to one of the two VA groups (desflurane and sevoflurane groups) and, then, randomly divided into one of four oxygenator groups: Terumo, LivaNova, Medtronic, and Senko (n = 3). Additionally, in each VA group, three patients were randomly selected and redundantly allocated to the human lung group (for control blood VA concentration without oxygenator). Blood samples collected 20 min after starting 6.0 vol% desflurane or 1.7 vol% sevoflurane were analyzed using gas chromatography. Oxygenator-related complications and structural changes in the membrane surface of each oxygenator after surgery were evaluated.

resultsThe mean (standard deviation) concentrations of desflurane and sevoflurane in the human lung were 182.4 (23.2) and 54.0 (9.6) μg/ml, respectively; not significantly different from those in the four oxygenator groups. No oxygenator-related complications occurred. Structural changes in membrane fibers did not occur after clinical use, except for difficulty in image acquisition with Senko products.

conclusionOur results demonstrated that the blood concentrations of desflurane and sevoflurane passing through oxygenators used during CPB were similar to those in the human lung control.

Indexed as

Anesthetics, InhalationMethyl EthersAdultAgedCardiopulmonary BypassDesfluraneFemaleHumansMaleMiddle AgedOxygenators, MembranePilot ProjectsProspective StudiesSevofluraneAnesthetics, InhalationDesfluraneMethyl EthersSevofluraneCardiopulmonary bypassConcentrationDesfluraneOxygenatorSevoflurane

Identifiers

PMID32851513
PMCPMC7449527
OpenAlexW3080796531

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.