Evidence map›Paper›PMID 31620921›Full record

ArticleAnnals of intensive care2019

Use of MIRUS™ for MAC-driven application of isoflurane, sevoflurane, and desflurane in postoperative ICU patients: a randomized controlled trial.

Martin Bellgardt, Adrian Iustin Georgevici, Mitja Klutzny, Dominik Drees, Andreas Meiser, Philipp Gude, Heike Vogelsang, Thomas Peter Weber, Jennifer Herzog-Niescery

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in Annals of intensive care, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03860129 (Depth of Long Term ICU Sedation Under 0,5 MAC Isoflurane, Sevoflurane or Desflurane Using MIRUS, an Automated Delivery System for Volatile Anaesthetics), which is not on this map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.5field-weighted citation impact, top 17% 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.

NCT03860129 nacompletednot on this map

Depth of Long Term ICU Sedation Under 0,5 MAC Isoflurane, Sevoflurane or Desflurane Using MIRUS, an Automated Delivery System for Volatile Anaesthetics

TypeinterventionalSponsorRuhr University of BochumRan2014 to 2017Enrolled30ConditionsIntensive Care Unit SyndromeArmsIsoflurane, Sevoflurane, Desflurane
3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 22 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Review
  5. Article
  6. Inhaled volatile anesthetics in the intensive care unit.World journal of critical care medicine · 2024
    Review
  7. Review
  8. Article
  9. Article
  10. Prolonged anesthesia alters brain synaptic architecture.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  11. Article
  12. Article
  13. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 2 institutions in 1 country.

Martin BellgardtDepartment of Anaesthesiology and Intensive Care Medicine, Ruhr-University Bochum, St. Josef Hospital, Gudrunstraße 56, 44791, Bochum, Germany. m.bellgardt@klinikum-bochum.de.ORCID http://orcid.org/0000-0001-9447-0019
Adrian Iustin GeorgeviciDepartment of Anaesthesiology and Intensive Care Medicine, Ruhr-University Bochum, St. Josef Hospital, Gudrunstraße 56, 44791, Bochum, Germany.
Mitja KlutznyDepartment of Anaesthesiology and Intensive Care Medicine, Ruhr-University Bochum, St. Josef Hospital, Gudrunstraße 56, 44791, Bochum, Germany.
Dominik DreesDepartment of Anaesthesiology and Intensive Care Medicine, Ruhr-University Bochum, St. Josef Hospital, Gudrunstraße 56, 44791, Bochum, Germany.
Andreas MeiserDepartment of Anaesthesiology, Intensive Care Medicine and Pain Medicine, Saarland University Medical Center, Homburg/Saar, Germany.
Philipp GudeDepartment of Anaesthesiology and Intensive Care Medicine, Ruhr-University Bochum, St. Josef Hospital, Gudrunstraße 56, 44791, Bochum, Germany.
Heike VogelsangDepartment of Anaesthesiology and Intensive Care Medicine, Ruhr-University Bochum, St. Josef Hospital, Gudrunstraße 56, 44791, Bochum, Germany.
Thomas Peter WeberDepartment of Anaesthesiology and Intensive Care Medicine, Ruhr-University Bochum, St. Josef Hospital, Gudrunstraße 56, 44791, Bochum, Germany.
Jennifer Herzog-NiesceryDepartment of Anaesthesiology and Intensive Care Medicine, Ruhr-University Bochum, St. Josef Hospital, Gudrunstraße 56, 44791, Bochum, Germany.
St. Josef-Hospital · DESaarland University · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe MIRUS™ (TIM, Koblenz, Germany) is an electronical gas delivery system, which offers an automated MAC (minimal alveolar concentration)-driven application of isoflurane, sevoflurane, or desflurane, and can be used for sedation in the intensive care unit. We investigated its consumption of volatile anesthetics at 0.5 MAC (primary endpoint) and the corresponding costs. Secondary endpoints were the technical feasibility to reach and control the MAC automatically, the depth of sedation at 0.5 MAC, and awakening times. Mechanically ventilated and sedated patients after major surgery were enrolled. Upon arrival in the intensive care unit, patients obtained intravenous propofol sedation for at least 1 h to collect ventilation and blood gas parameters, before they were switched to inhalational sedation using MIRUS™ with isoflurane, sevoflurane, or desflurane. After a minimum of 2 h, inhalational sedation was stopped, and awakening times were recorded. A multivariate electroencephalogram and the Richmond Agitation Sedation Scale (RASS) were used to assess the depth of sedation. Vital signs, ventilation parameters, gas consumption, MAC, and expiratory gas concentrations were continuously recorded.

resultsThirty patients obtained inhalational sedation for 18:08 [14:46-21:34] [median 1st-3rd quartiles] hours. The MAC was 0.58 [0.50-0.64], resulting in a Narcotrend Index of 37.1 [30.9-42.4] and a RASS of - 3.0 [- 4.0 to (- 3.0)]. The median gas consumption was significantly lowest for isoflurane ([ml h

conclusionsA target-controlled, MAC-driven automated application of volatile anesthetics is technically feasible and enables an adequate depth of sedation. Gas consumption was highest for desflurane, which is also the most expensive volatile anesthetic. Although awakening times were shortest, the actual time saving of a few minutes might be negligible for most patients in the intensive care unit. Thus, using desflurane seems not rational from an economic perspective. Trial registration Clinical Trials Registry (ref.: NCT03860129). Registered 24 September 2018-Retrospectively registered.

Indexed as

DesfluraneInhalational sedationIsofluraneMAC-driven sedationSevoflurane

Identifiers

PMID31620921
PMCPMC6795651
OpenAlexW2981149645

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.