Evidence map›Paper›PMID 35014877›Full record

SynthesisAsian cardiovascular & thoracic annals2022

Neuroprotective strategies with circulatory arrest in open aortic surgery - A meta-analysis.

Imthiaz Manoly, Mohsin Uzzaman, Dimos Karangelis, Manoj Kuduvalli, Efstratios Georgakarakos, Cesare Quarto, Ramanish Ravishankar, Fotis Mitropoulos, Abdul Nasir

Abstract readMeta-AnalysisReview
In one paragraph

Synthesis in Asian cardiovascular & thoracic annals, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing 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

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

  1. Guideline
  2. Article
  3. Article
  4. Article
  5. Article
  6. 2024 EACTS/EACTAIC/EBCP Guidelines on cardiopulmonary bypass in adult cardiac surgery.Interdisciplinary cardiovascular and thoracic surgery · 2025
    Article
  7. 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
  8. Article
  9. Review
  10. Article
  11. Review
  12. E-vita OPEN NEO in the treatment of acute or chronic aortic pathologies: first interim results of the NEOS study.European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery · 2024
    Observational
  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.

Imthiaz ManolyBurjeel Medical City, Abu Dhabi, United Arab Emirates.ORCID https://orcid.org/0000-0001-8768-8239
Mohsin UzzamanPeshawar Institute of Cardiology, Peshawar, Pakistan.
Dimos KarangelisDepartment of Cardiac Surgery, Democritus University of Thrace, 69026University Hospital of Alexandroupolis, Alexandroupolis, Greece.ORCID https://orcid.org/0000-0001-7633-9949
Manoj Kuduvalli4595Liverpool Heart and Chest Hospital, Liverpool, UK.
Efstratios GeorgakarakosDepartment of Vascular Surgery, Democritus University of Thrace, University Hospital of Alexandroupolis, Alexandroupolis, Greece.
Cesare QuartoRoyal Brompton and Harefield Hospitals, London, UK.
Ramanish Ravishankar3124University of Edinburgh, Edinburgh, UK.
Fotis MitropoulosDepartment of Cardiac Surgery, 69036Mitera Hospital, Athens, Greece.
Abdul NasirPeshawar Institute of Cardiology, Peshawar, Pakistan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveDeep hypothermic circulatory arrest (DHCA) in aortic surgery is associated with morbidity and mortality despite evolving strategies. With the advent of antegrade cerebral perfusion (ACP), moderate hypothermic circulatory arrest (MHCA) was reported to have better outcomes than DHCA. There is no standardised guideline or consensus regarding the hypothermic strategies to be employed in open aortic surgery. Meta-analysis was performed comparing DHCA with MHCA + ACP in patients having aortic surgery.

methodsA systematic review of the literature was undertaken. Any studies with DHCA versus MHCA + ACP in aortic surgeries were selected according to specific inclusion criteria and analysed to generate summative data. Statistical analysis was performed using STATS Direct. The primary outcomes were hospital mortality and post-operative stroke. Secondary outcomes were cardiopulmonary bypass time (CPB), post-operative blood transfusion, length of ICU stay, respiratory complications, renal failure and length of hospital stay. Subgroup analysis of primary outcomes for Arch surgery alone was also performed.

resultsFifteen studies were included with a total of 5869 patients. There was significantly reduced mortality (Pooled OR = +0.64, 95% CI = +0.49 to +0.83;

conclusionMHCA + ACP are associated with significantly better post-operative outcomes compared with DHCA for both mortality and stroke and majority of the secondary outcomes.

Indexed as

Heart ArrestRenal InsufficiencyStrokeAorta, ThoracicCerebrovascular CirculationCirculatory Arrest, Deep Hypothermia InducedHumansPerfusionRetrospective StudiesTreatment Outcomeaortic diseaseaortic surgeryCerebral protectionhypothermic circulatory arrestselective antegrade cerebral protection

Identifiers

PMID35014877
PMCPMC9260478

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Registered trials

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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.