Evidence map›Paper›PMID 35077261›Full record

Trial reportPerfusion2023

Kinetics of tissue oxygenation index during fast and slow cardiopulmonary bypass initiation.

Jan Turra, Adrian Bauer, Andreas Möbius, Jacob Wojdyla, Christoph Eisner

Full text readRandomized Controlled Trial
In one paragraph

Trial report in Perfusion, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

2 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. National Heart Center Perfusion Guidelines.Saudi medical journal · 2026
    Guideline
  2. Trial
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

5 authors.

Jan TurraDepartment of Cardiothoracic Surgery, 27178University Hospital Heidelberg, Heidelberg, Germany.ORCID 0000-0003-1452-625X
Adrian BauerDepartment of Cardiovascular Surgery, Mediclin Heartcenter Coswig, Coswig, Germany.
Andreas MöbiusDepartment of Cardiothoracic Surgery, 27178University Hospital Heidelberg, Heidelberg, Germany.
Jacob WojdylaDepartment of Cardiothoracic Surgery, 23536Sunnyside Medical Center, Oregon, USA.
Christoph EisnerDepartment of Anesthesiology, 27178University Hospital Heidelberg, Heidelberg, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionDespite being a daily clinical application in cardiac operating theaters, an evidence-based approach on how to optimally initiate the heart-lung machine (HLM) to prevent critical phases of cerebral ischemia is still lacking. We therefore designed a study comparing two different initiation times for starting the cardiopulmonary bypass (CPB).

methodsWe conducted a monocentric, randomized, and prospective study comparing the impact of two initiation times, a rapid initiation of 15 s and a slow initiation of 180 s to reach the full target flow rate of 2.5 L/min/m

resultsThe absolute values in tissue oxygenation index (TOI) showed no difference between the groups before and after the CPB with a 10% drop in oxygenation index in both groups due to the hemodilution through the HLM priming. Looking at the kinetics a rapid initiation of CPB produced a higher negative rate of change in TOI with a total of 21% in critical oxygenation readings compared to 6% in the slow initiation group.

conclusionIn order to avoid critical phases of cerebral ischemia during the initiation of CPB for cardiac procedures, we propose an initiation time of at least 90 s to reach the 100% of target flow rate of the HLM.

Indexed as

Brain IschemiaCardiopulmonary BypassBlood Gas AnalysisCerebrovascular CirculationHumansOximetryOxygenProspective StudiesOxygencardiopulmonary bypasscerebral oximetryinitiation timenear infrared spectroscopy

Identifiers

PMID35077261
PMCPMC10026154

What OpenQuestion holds

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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.