Evidence map›Paper›PMID 37744938›Full record

ArticleHeart rhythm O22023

Safety of an esophageal deviator for atrial fibrillation catheter ablation.

Renner Pereira, Cristiano Pisani, Vera Aiello, Idágene Cestari, Helena Oyama, Osmar Santos, Jorge Otubo, Daniel Moura, Mauricio Scanavacca

Abstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Heart rhythm O2, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

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

2 citing papers in PubMed.

  1. Brazilian Atrial Fibrillation Guidelines - 2025.Arquivos brasileiros de cardiologia · 2025
    Article
  2. 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

9 authors.

Renner PereiraArrhythmia Unit, Heart Institute, University of São Paulo Medical School, São Paulo, Brazil.
Cristiano PisaniArrhythmia Unit, Heart Institute, University of São Paulo Medical School, São Paulo, Brazil.
Vera AielloArrhythmia Unit, Heart Institute, University of São Paulo Medical School, São Paulo, Brazil.
Idágene CestariArrhythmia Unit, Heart Institute, University of São Paulo Medical School, São Paulo, Brazil.
Helena OyamaArrhythmia Unit, Heart Institute, University of São Paulo Medical School, São Paulo, Brazil.
Osmar SantosDepartment of Materials and Processes, Aeronautics Institute of Technology, São José dos Campos, Brazil.
Jorge OtuboDepartment of Materials and Processes, Aeronautics Institute of Technology, São José dos Campos, Brazil.
Daniel MouraArrhythmia Unit, Heart Institute, University of São Paulo Medical School, São Paulo, Brazil.
Mauricio ScanavaccaArrhythmia Unit, Heart Institute, University of São Paulo Medical School, São Paulo, Brazil.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Esophageal thermal injury is a complication of atrial fibrillation (AF) ablation, and it can be avoided by esophageal deviation during left atrial posterior wall radiofrequency catheter ablation. Objective: This study aimed to evaluate the safety of a nitinol-based mechanical esophageal displacement device (MEDD) and its performance. Methods: This preclinical safety study was conducted on 20 pigs, with 10 undergoing radiofrequency AF ablation using the MEDD and 10 serving as a control group under anticoagulation but without radiofrequency application. Esophageal traumatic injuries were classified from 0 to 4 and were grouped as absent (grade 0), minor (grade 1 or 2), moderate (grade 3), or major risk lesions (grade 4) by anatomopathological study. Grades 1 and 2 were considered acceptable. Fluoroscopy was used to measure displacement. Results: Five (25%) pigs developed traumatic lesions, 4 with grade 1 and 1 with grade 2 (2-mm superficial ulcer). There was no difference in lesion occurrence between the radiofrequency and control groups (30% and 20%, respectively; Conclusion: In pigs, the MEDD demonstrated safety in relation to esophageal tissue, and successful deviation. Esophageal traumatic injuries were acceptable, but improper manipulation led to pharyngeal lesion.

Indexed as

Atrial fibrillationCatheter ablationComplicationEsophageal deviatorEsophageal injurySafety

Identifiers

PMID37744938
PMCPMC10513920

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
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 Socratic graph.