Evidence map›Paper›PMID 30877717›Full record

ArticleJournal of biomedical optics2019

Hyperspectral near-infrared spectroscopy assessment of the brain during hypoperfusion.

Thu Nga Nguyen, Wen Wu, Ermias Woldermichael, Vladislav Toronov, Steve Lin

Open access · goldAbstract read
In one paragraph

Article in Journal of biomedical optics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
1.0field-weighted citation impact, top 23% 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

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 11 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Article
  6. Review
  7. Article
  8. 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

5 authors at 3 institutions in 2 countries.

Thu Nga NguyenRyerson University, Faculty of Science, Department of Physics, Toronto, Ontario, Canada.
Wen WuSt. Michael's Hospital, Li Ka Shing Knowledge Institute, Toronto, Ontario, Canada.
Ermias WoldermichaelRyerson University, Faculty of Science, Department of Physics, Toronto, Ontario, Canada.
Vladislav ToronovRyerson University, Faculty of Science, Department of Physics, Toronto, Ontario, Canada.
Steve LinSt. Michael's Hospital, Li Ka Shing Knowledge Institute, Toronto, Ontario, Canada.
Toronto Metropolitan University · CASt Michaels Hospital · GBSt. Michael's Hospital · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Two-thirds of out-of-hospital cardiac arrest patients, who survive to hospital admission, die in the hospital from neurological injuries related to cerebral hypoperfusion. Therefore, noninvasive real-time monitoring of the cerebral oxygen metabolism in cardiac arrest patients is extremely important. Hyperspectral near-infrared spectroscopy (hNIRS) is a noninvasive technique that measures concentrations of the key chromophores in the brain, such as oxygenated hemoglobin, deoxygenated hemoglobin, and cytochrome C oxidase (CCO), an intracellular marker of oxygen consumption. We tested hNIRS on 10 patients undergoing transcatheter aortic valve insertion, where rapid ventricular pacing (RVP) is required to temporarily induce sudden hypotension and hypoperfusion that mimic cardiac arrest. Using multidistance hNIRS, we found that tissue oxygen saturation changes in the cerebral tissue were lower than those in the scalp during RVP. CCO redox changes were detected in cerebral tissue but not in the scalp during RVP. We have demonstrated that hNIRS is feasible and can detect sudden changes in cerebral oxygenation and metabolism in patients during profound hypotension.

Indexed as

AgedAged, 80 and overAlgorithmsBrainElectron Transport Complex IVFemaleHeart ArrestHemoglobinsHumansMaleOxygenSignal Processing, Computer-AssistedSpectroscopy, Near-InfraredElectron Transport Complex IVHemoglobinsOxygencardiac arrestcerebral oxygen saturationcytochrome c oxidasenear-infrared spectroscopytranscatheter aortic valve insertion

Identifiers

PMID30877717
PMCPMC6975180
OpenAlexW2930630610

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.