Evidence map›Paper›PMID 25336357›Full record

Trial reportClinical research in cardiology : official journal of the German Cardiac Society2015

Neuropsychological impact of cerebral microemboli in ablation of atrial fibrillation.

S Kochhäuser, H H Lohmann, M A Ritter, P Leitz, F Güner, S Zellerhoff, C Korsukewitz, D G Dechering, J Banken, N M Peters and 2 more

Abstract readComparative StudyRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Clinical research in cardiology : official journal of the German Cardiac Society, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 2 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

15 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Impact of catheter ablation versus medical therapy on cognitive function in atrial fibrillation: a systematic review.Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing · 2022
    Pooled it
  3. Trial
  4. Article
  5. Article
  6. Article
  7. Observational
  8. Article
  9. Comparing learning curves of two established "single-shot" devices for ablation of atrial fibrillation.Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing · 2018
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Atrial fibrillation and long-term sports practice: epidemiology and mechanisms.Clinical research in cardiology : official journal of the German Cardiac Society · 2015
    Review
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.

S KochhäuserDivision of Electrophysiology, Department of Cardiovascular Medicine, University of Münster, Albert-Schweitzer-Campus 1, Building A1, 48149, Muenster, Germany, simon.kochhaeuser@ukmuenster.de.
H H Lohmann
M A Ritter
P Leitz
F Güner
S Zellerhoff
C Korsukewitz
D G Dechering
J Banken
N M Peters
L Eckardt
G Mönnig

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundClinically silent lesions on cerebral magnet resonance imaging have been found in larger numbers after pulmonary vein isolation (PVI) especially with phased radio frequency (pRF) using all ten electrodes. However, the neuropsychological effects of cerebral microembolism during the procedure remain unclear and data regarding this issue so far are inconsistent.

methodsBetween August 2011 and June 2012, 76 patients undergoing their first PVI were randomized to ablation with either phased (40) or irrigated (36) radio frequency (iRF). A comprehensive neuropsychological test battery was performed the day before and after PVI as well as 6 months after ablation. The occurrence of cerebral microemboli during the procedure was performed via a transcranial Doppler ultrasound device.

resultsPVI using pRF was associated with increased number of microembolic signals (MES) compared to iRF (1530.0 ± 979.8 vs. 645.7 ± 448.7; p < 0.001). Neuropsychological assessment did not reveal any changes in correlation with the used ablation technique. Besides an age-related effect there was a diffuse, sub-clinical impairment of neurologic function depending on age and the number of MES.

conclusionsThere was no clinical overt cognitive deficit and no significant difference in cognitive function correlating with the used ablation technique. The number of MES correlated with a subtle, diffuse post-procedural impairment of neuropsychological function highlighting the need to reduce microemboli during ablation.

Indexed as

CognitionAgedAtrial FibrillationCatheter AblationCognition DisordersFemaleGermanyHumansIntracranial EmbolismMaleMiddle AgedNeuropsychological TestsPredictive Value of TestsProspective StudiesRisk FactorsTherapeutic Irrigation

Identifiers

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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.