Evidence map›Paper›PMID 23582829›Full record

ArticleThe Journal of thoracic and cardiovascular surgery2014

Predictors of electrocerebral inactivity with deep hypothermia.

Michael L James, Nicholas D Andersen, Madhav Swaminathan, Barbara Phillips-Bute, Jennifer M Hanna, Gregory R Smigla, Michael E Barfield, Syamal D Bhattacharya, Judson B Williams, Jeffrey G Gaca and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of thoracic and cardiovascular surgery, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 1 pooled it
5.2field-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

22 citing papers in PubMed, 1 synthesis or guideline pooled it, 51 citations in OpenAlex.

  1. Guideline
  2. Trial
  3. Article
  4. Review
  5. Article
  6. Does deeper hypothermia reduce the risk of acute kidney injury after circulatory arrest for aortic arch surgery?European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery · 2021
    Article
  7. Article
  8. Review
  9. Article
  10. Neuroprotective Strategies in Repair and Replacement of the Aortic Arch.The International journal of angiology : official publication of the International College of Angiology, Inc · 2018
    Review
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. The human burst suppression electroencephalogram of deep hypothermia.Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology · 2015
    Article
  18. Article
  19. "Open" approach to aortic arch aneurysm repair.Journal of the Saudi Heart Association · 2014
    Review
  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

12 authors at 2 institutions in 1 country.

Michael L JamesDepartment of Anesthesiology, Duke University Medical Center, Durham, NC; Brain Injury Translational Research Center, Duke University Medical Center, Durham, NC; Division of Neurology, Department of Medicine, Duke University Medical Center, Durham, NC.
Nicholas D AndersenDivision of Cardiovascular and Thoracic Surgery, Department of Surgery, Duke University Medical Center, Durham, NC.
Madhav SwaminathanDepartment of Anesthesiology, Duke University Medical Center, Durham, NC.
Barbara Phillips-ButeDepartment of Anesthesiology, Duke University Medical Center, Durham, NC.
Jennifer M HannaDivision of Cardiovascular and Thoracic Surgery, Department of Surgery, Duke University Medical Center, Durham, NC.
Gregory R SmiglaPerfusion Services, Duke University Medical Center, Durham, NC.
Michael E BarfieldDivision of Cardiovascular and Thoracic Surgery, Department of Surgery, Duke University Medical Center, Durham, NC.
Syamal D BhattacharyaDivision of Cardiovascular and Thoracic Surgery, Department of Surgery, Duke University Medical Center, Durham, NC.
Judson B WilliamsDivision of Cardiovascular and Thoracic Surgery, Department of Surgery, Duke University Medical Center, Durham, NC.
Jeffrey G GacaDivision of Cardiovascular and Thoracic Surgery, Department of Surgery, Duke University Medical Center, Durham, NC.
Aatif M HusainDivision of Neurology, Department of Medicine, Duke University Medical Center, Durham, NC.
G Chad HughesDivision of Cardiovascular and Thoracic Surgery, Department of Surgery, Duke University Medical Center, Durham, NC. Electronic address: gchad.hughes@duke.edu.
Duke Medical Center · USDuke University Hospital · US

Funding

Postdoctoral Training in Cardiovascular Clinical ResearchT32HL069749 · NHLBI · DUKE UNIVERSITY · PI MARK, DANIEL B · 2003 to 2023
$6.7M
Translational Research in Surgical OncologyT32CA093245 · NCI · DUKE UNIVERSITY · PI ALLEN, PETER J, HARPOLE, DAVID H. · 2002 to 2020
$5.2M
Cardiothoracic Surgical Network Clinical CenterU01HL088953 · NHLBI · DUKE UNIVERSITY · PI SMITH, PETER K · 2007 to 2013
$2.6M
Core Clinical Centers for the CTSNUM1HL088953 · NHLBI · DUKE UNIVERSITY · PI SMITH, PETER K · 2013 to 2017
$2.5M
NCI NIH HHS T32 CA093245NCI NIH HHS T32-CA093245NHLBI NIH HHS L40 HL104654NHLBI NIH HHS T32 HL069749NHLBI NIH HHS T32-HL069749NHLBI NIH HHS U01 HL088953NHLBI NIH HHS U01-HL088953NHLBI NIH HHS UM1 HL088953
6 · The paper itself

Abstract

objectiveCooling to electrocerebral inactivity (ECI) by electroencephalography (EEG) remains the gold standard to maximize cerebral and systemic organ protection during deep hypothermic circulatory arrest (DHCA). We sought to determine predictors of ECI to help guide cooling protocols when EEG monitoring is unavailable.

methodsBetween July 2005 and July 2011, 396 patients underwent thoracic aortic operation with DHCA; EEG monitoring was used in 325 (82%) of these patients to guide the cooling strategy, and constituted the study cohort. Electroencephalographic monitoring was used for all elective cases and, when available, for nonelective cases. Multivariable linear regression was used to assess predictors of the nasopharyngeal temperature and cooling time required to achieve ECI.

resultsCooling to a nasopharyngeal temperature of 12.7°C or for a duration of 97 minutes was required to achieve ECI in >95% of patients. Only 7% and 11% of patients achieved ECI by 18°C or 50 minutes of cooling, respectively. No independent predictors of nasopharyngeal temperature at ECI were identified. Independent predictors of cooling time included body surface area (18 minutes/m(2)), white race (7 minutes), and starting nasopharyngeal temperature (3 minutes/°C). Low complication rates were observed (ischemic stroke, 1.5%; permanent paraparesis/paraplegia, 1.5%; new-onset dialysis, 2.2%; and 30-day/in-hospital mortality, 4.3%).

conclusionsCooling to a nasopharyngeal temperature of 12.7°C or for a duration of 97 minutes achieved ECI in >95% of patients in our study population. However, patient-specific factors were poorly predictive of the temperature or cooling time required to achieve ECI, necessitating EEG monitoring for precise ECI detection.

Indexed as

Body Temperature RegulationBrain WavesCirculatory Arrest, Deep Hypothermia InducedElectroencephalographyThermographyAdultAgedAged, 80 and overAorta, ThoracicBrainFemaleHospital MortalityHumansLinear ModelsMaleMiddle Aged

Identifiers

PMID23582829
PMCPMC3800484
OpenAlexW2060812786

What OpenQuestion holds

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LicenceTDM
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.