Evidence map›Paper›PMID 26556611›Full record

ArticleIntensive care medicine2016

Apnea test during brain death assessment in mechanically ventilated and ECMO patients.

Marco Giani, Vittorio Scaravilli, Sebastiano Maria Colombo, Andrea Confalonieri, Rosambra Leo, Elena Maggioni, Leonello Avalli, Alessia Vargiolu, Giuseppe Citerio

Abstract read
PubMed Publisher
In one paragraph

Article in Intensive care medicine, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 2 pooled it
5.6field-weighted citation impact, top 4% 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

26 citing papers in PubMed, 2 syntheses or guidelines pooled it, 72 citations in OpenAlex.

  1. Guideline
  2. Pooled it
  3. Observational
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  6. Review
  7. [Determination of brain death in patients on extracorporeal membrane oxygenation-case report].Medizinische Klinik, Intensivmedizin und Notfallmedizin · 2023
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  8. Article
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  10. [Irreversible loss of brain function : Requirements and Clinical diagnosis].Medizinische Klinik, Intensivmedizin und Notfallmedizin · 2021
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 1 country.

Marco GianiSchool of Medicine and Surgery, University of Milan-Bicocca, Via Cadore 48, 20900, Monza, Italy. marco.giani84@gmail.com.
Vittorio ScaravilliSchool of Medicine and Surgery, University of Milan-Bicocca, Via Cadore 48, 20900, Monza, Italy. vittorio.scaravilli@gmail.com.
Sebastiano Maria ColomboSchool of Medicine and Surgery, University of Milan-Bicocca, Via Cadore 48, 20900, Monza, Italy. sebastiano.colombo@gmail.com.
Andrea ConfalonieriNeurointensive Care, Department of Emergency and Intensive Care, San Gerardo Hospital, Via Pergolesi 33, 20900, Monza (MB), Italy. andreaconfa@gmail.com.
Rosambra LeoSchool of Medicine and Surgery, University of Milan-Bicocca, Via Cadore 48, 20900, Monza, Italy. rosambra.leo@gmail.com.
Elena MaggioniCardiac Surgical Intensive Care Unit, Department of Emergency and Intensive Care, San Gerardo Hospital, Via Pergolesi 33, 20900, Monza (MB), Italy. elenamaggioni75@libero.it.
Leonello AvalliCardiac Surgical Intensive Care Unit, Department of Emergency and Intensive Care, San Gerardo Hospital, Via Pergolesi 33, 20900, Monza (MB), Italy. l.avalli@hsgerardo.org.
Alessia VargioluNeurointensive Care, Department of Emergency and Intensive Care, San Gerardo Hospital, Via Pergolesi 33, 20900, Monza (MB), Italy. neurorianimazione@hsgerardo.org.
Giuseppe CiterioSchool of Medicine and Surgery, University of Milan-Bicocca, Via Cadore 48, 20900, Monza, Italy. giuseppe.citerio@unimib.it.ORCID http://orcid.org/0000-0002-5374-3161
Azienda Ospedaliera San Gerardo · ITUniversity of Milano-Bicocca · ITVita-Salute San Raffaele University · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo evaluate the feasibility and efficacy of an apnea test (AT) technique that combines the application of positive end expiratory pressure (PEEP) with subsequent pulmonary recruitment in a large cohort of brain-dead patients.

methodsThis study was a retrospective analysis of prospectively collected data on brain-dead patients admitted to our institution (Hospital San Gerardo, Monza, Italy) between January 2010 and December 2014. The rate of aborted apnea tests (ATs), occurrence of complications (i.e., pneumothorax, cardiac arrhythmias, cardiac arrest, and severe hypoxia, defined as PaO2 < 40 mmHg), ventilator settings, hemodynamics, and blood gas analyses were evaluated. Subgroup analysis was performed, with patients classified into veno-arterial extracorporeal membrane oxygenation (ECMO) or non-ECMO groups, and into hypoxic (i.e., baseline PaO2/FiO2 < 200 mmHg) and non-hypoxic (i.e., baseline PaO2/FiO2 > 200 mmHg) groups.

resultsIn total, 169 consecutive patients including 25 on ECMO were included in the study. No AT abortion nor severe complications were detected. The AT was completed in all patients. Fluid boluses and increases or initiation of vasoactive drugs were required in less than 10 and 3% of the AT procedures, respectively. No clinically meaningful alteration in hemodynamics was recorded. Severe hypoxia occurred during 7 (2.4%) and 4 (8%) of the ATs performed in non-ECMO and ECMO patients, respectively (p = 0.063), and it occurred more frequently in hypoxic patients than in non-hypoxic patients (11.1 vs. 4.8%, respectively; p = 0.002).

conclusionsIn a large cohort of consecutive patients, including the largest patient population on ECMO reported to date, our AT technique that combines the application of PEEP with subsequent pulmonary recruitment proved to be feasible and safe.

Indexed as

AgedAged, 80 and overAnalysis of VarianceApneaBrain DeathCause of DeathExtracorporeal Membrane OxygenationFemaleHumansItalyMaleMiddle AgedPositive-Pressure RespirationRespiration, ArtificialRetrospective StudiesApneaBrain deathExtracorporeal membrane oxygenationMechanical ventilation

Identifiers

PMID26556611
OpenAlexW2117436184

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.