Evidence map›Paper›PMID 28882917›Full record

SynthesisBMJ open2017

Effects of cerebral near-infrared spectroscopy on the outcome of patients undergoing cardiac surgery: a systematic review of randomised trials.

Giuseppe Filiberto Serraino, Gavin J Murphy

Registry-linked trialOpen access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in BMJ open, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04766554 (A Multicenter, Randomized, Controlled Clinical Trial of Cerebral Oxygen Saturation Monitoring In Cardiac Surgery), which is not on this map. Cited by 39 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 5 pooled it
11.6field-weighted citation impact, top 1% 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.

NCT04766554 nacompletednot on this mapstarted 2021, after this paper: background citation

A Multicenter, Randomized, Controlled Clinical Trial of Cerebral Oxygen Saturation Monitoring In Cardiac Surgery (COSMICS)

TypeinterventionalSponsorInstituto Nacional de Cardiologia de LaranjeirasRan2021 to 2024Enrolled326ConditionsCardiac Disease, Cognitive DysfunctionArmsCerebral oximetry monitor (The INVOS® Cerebral/Somatic Oximeter) and protocol-based interventions
3 · Its place in the literature

Who cites it

39 citing papers in PubMed, 5 syntheses or guidelines pooled it, 130 citations in OpenAlex.

  1. National Heart Center Perfusion Guidelines.Saudi medical journal · 2026
    Guideline
  2. Pooled it
  3. Guideline
  4. Pooled it
  5. Pooled it
  6. Trial
  7. Trial
  8. Article
  9. Article
  10. Article
  11. 2024 EACTS/EACTAIC/EBCP Guidelines on cardiopulmonary bypass in adult cardiac surgery.Interdisciplinary cardiovascular and thoracic surgery · 2025
    Article
  12. 2024 EACTS/EACTAIC/EBCP Guidelines on cardiopulmonary bypass in adult cardiac surgery.European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery · 2025
    Article
  13. Review
  14. Review
  15. Article
  16. Article
  17. Cerebral blood flow velocity and oxygenation in neonatal aortic arch repair at two perfusion temperatures.European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery · 2023
    Article
  18. Review
  19. Cerebral oxygen saturation as outcome predictor after transfemoral transcatheter aortic valve implantation.Clinical research in cardiology : official journal of the German Cardiac Society · 2022
    Article
  20. 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

2 authors at 2 institutions in 1 country.

Giuseppe Filiberto SerrainoDepartment of Cardiovascular Sciences and NIHR Leicester Biomedical Research Unit in Cardiovascular Medicine, University of Leicester, Clinical Sciences Wing, Glenfield General Hospital, Leicester, UK.
Gavin J MurphyDepartment of Cardiovascular Sciences and NIHR Leicester Biomedical Research Unit in Cardiovascular Medicine, University of Leicester, Clinical Sciences Wing, Glenfield General Hospital, Leicester, UK.
NIHR Leicester Cardiovascular Biomedical Research Unit · GBUniversity of Leicester · GB

Funding

British Heart Foundation RG/13/6/29947Department of Health RP-PG-0407-10384
6 · The paper itself

Abstract

objectivesGoal-directed optimisation of cerebral oxygenation using near-infrared spectroscopy (NIRS) during cardiopulmonary bypass is widely used. We tested the hypotheses that the use of NIRS cerebral oximetry results in reductions in cerebral injury (neurocognitive function, serum biomarkers), injury to other organs including the heart and brain, transfusion rates, mortality and resource use.

designSystematic review and meta-analysis.

settingTertiary cardiac surgery centres in North America, Europe and Asia.

participantsA search of Cochrane Central Register of Controlled Trials, ClinicalTrials.gov, Medline, Embase, and the Cumulative Index to Nursing and Allied Health Literature Plus from inception to November 2016 identified 10 randomised trials, enrolling a total of 1466 patients, all in adult cardiac surgery.

interventionsNIRS-based algorithms designed to optimise cerebral oxygenation versus standard care (non-NIRS-based) protocols in cardiac surgery patients during cardiopulmonary bypass. OUTCOME MEASURES: Mortality, organ injury affecting the brain, heart and kidneys, red cell transfusion and resource use.

resultsTwo of the 10 trials identified in the literature search were considered at low risk of bias. Random-effects meta-analysis demonstrated similar mortality (risk ratio (RR) 0.76, 95% CI 0.30 to 1.96), major morbidity including stroke (RR 1. 08, 95% CI 0.40 to 2.91), red cell transfusion and resource use in NIRS-treated patients and controls, with little or no heterogeneity. Grades of Recommendation, Assessment, Development and Evaluation of the quality of the evidence was low or very low for all of the outcomes assessed.

conclusionsThe results of this systematic review did not support the hypotheses that cerebral NIRS-based algorithms have clinical benefits in cardiac surgery. TRIAL REGISTRATION NUMBER: PROSPERO CRD42015027696.

Indexed as

OximetrySpectroscopy, Near-InfraredAdultBrain InjuriesCardiopulmonary BypassCerebrovascular CirculationErythrocyte TransfusionHumansRandomized Controlled Trials as TopicStrokecardiopulmonary bypasscerebral oxygenationnear Infra-red spectroscopy

Identifiers

PMID28882917
PMCPMC5595187
OpenAlexW2752895776

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.