Evidence map›Paper›PMID 22408016›Full record

ArticleAmerican journal of physiology. Heart and circulatory physiology2012

Use of endogenous NADH fluorescence for real-time in situ visualization of epicardial radiofrequency ablation lesions and gaps.

Marco Mercader, Luther Swift, Sumit Sood, Huda Asfour, Matthew Kay, Narine Sarvazyan

Abstract read
In one paragraph

Article in American journal of physiology. Heart and circulatory physiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
1.1field-weighted citation impact, top 19% 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

24 citing papers in PubMed, 32 citations in OpenAlex.

  1. Stretchable large-area transparent nanowire composite arrays for label-free multimodal interrogation of cardiac physiology.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Optical coherence tomography imaging of cardiac substrates.Quantitative imaging in medicine and surgery · 2019
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. 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

6 authors at 2 institutions in 1 country.

Marco MercaderThe George Washington University Medical Faculty Associates, Division of Cardiology, Washington, DC, USA.
Luther Swift
Sumit Sood
Huda Asfour
Matthew Kay
Narine Sarvazyan
George Washington University · USWashington University Medical Center · US

Funding

Low flow reperfusion after acute myocardial ischemia: when too little is too muchR01HL095828 · NHLBI · GEORGE WASHINGTON UNIVERSITY · PI KAY, MATTHEW W. · 2010 to 2014
$1.6M
NHLBI NIH HHS HL-095828NHLBI NIH HHS R01 HL095828
6 · The paper itself

Abstract

Radiofrequency ablation (RFA) aims to produce lesions that interrupt reentrant circuits or block the spread of electrical activation from sites of abnormal activity. Today, there are limited means for real-time visualization of cardiac muscle tissue injury during RFA procedures. We hypothesized that the fluorescence of endogenous NADH could be used as a marker of cardiac muscle injury during epicardial RFA procedures. Studies were conducted in blood-free and blood-perfused hearts from healthy adult Sprague-Dawley rats and New Zealand rabbits. Radiofrequency was applied to the epicardial surface of the heart using a 4-mm standard blazer ablation catheter. A dual camera optical mapping system was used to monitor NADH fluorescence upon ultraviolet illumination of the epicardial surface and to record optical action potentials using the voltage-sensitive probe RH237. Epicardial lesions were seen as areas of low NADH fluorescence. The lesions appeared immediately after ablation and remained stable for several hours. Real-time monitoring of NADH fluorescence allowed visualization of viable tissue between the RFA lesions. Dual recordings of NADH and epicardial electrical activity linked the gaps between lesions to postablation reentries. We found that the fluorescence of endogenous NADH aids the visualization of injured epicardial tissue caused by RFA. This was true for both blood-free and blood-perfused preparations. Gaps between NADH-negative regions revealed unablated tissue, which may promote postablation reentry or provide pathways for the conduction of abnormal electrical activity.

Indexed as

Catheter AblationFluorescenceAction PotentialsAnimalsCardiac Imaging TechniquesElectrophysiologic Techniques, CardiacFeasibility StudiesModels, AnimalNADNecrosisPericardiumRabbitsRatsNAD

Identifiers

PMID22408016
PMCPMC3362111
OpenAlexW2134053766

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.