Evidence map›Paper›PMID 41071280›Full record

ArticleHeart and vessels2026

Evaluation of the contributors of generator impedance during radiofrequency catheter ablation.

Takayuki Sekihara, Yuma Tanaka, Yuto Ota, Koki Tanabiki, Tomohiro Yamanaka, Masaki Taniguchi, Hiroki Kawakita, Tomoaki Nakano, Akira Yoshida, Takafumi Oka and 1 more

Abstract read
In one paragraph

Article in Heart and vessels, 2026. 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. Article
  2. 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

11 authors.

Takayuki SekiharaDepartment of Cardiovascular Medicine, The University of Osaka Graduate School of Medicine, 2-2, Yamadaoka, Suita, Osaka, 565-0871, Japan.
Yuma TanakaDepartment of Clinical Engineering, The University of Osaka Hospital, Osaka, Japan.
Yuto OtaDepartment of Clinical Engineering, The University of Osaka Hospital, Osaka, Japan.
Koki TanabikiDepartment of Clinical Engineering, The University of Osaka Hospital, Osaka, Japan.
Tomohiro YamanakaDepartment of Clinical Engineering, The University of Osaka Hospital, Osaka, Japan.
Masaki TaniguchiDepartment of Clinical Engineering, The University of Osaka Hospital, Osaka, Japan.
Hiroki KawakitaDepartment of Clinical Engineering, The University of Osaka Hospital, Osaka, Japan.
Tomoaki NakanoDepartment of Cardiovascular Medicine, The University of Osaka Graduate School of Medicine, 2-2, Yamadaoka, Suita, Osaka, 565-0871, Japan.
Akira YoshidaDepartment of Cardiovascular Medicine, The University of Osaka Graduate School of Medicine, 2-2, Yamadaoka, Suita, Osaka, 565-0871, Japan.
Takafumi OkaDepartment of Cardiovascular Medicine, The University of Osaka Graduate School of Medicine, 2-2, Yamadaoka, Suita, Osaka, 565-0871, Japan. takafumioka0410@gmail.com.
Yasushi SakataDepartment of Cardiovascular Medicine, The University of Osaka Graduate School of Medicine, 2-2, Yamadaoka, Suita, Osaka, 565-0871, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study aimed to clarify the contributions of dispersive electrode configuration, extracardiac impedance, and blood pool impedance to generator impedance (GI). Forty-five patients who underwent catheter ablation with Intellanav Stablepoint™ catheter were included. Four dispersive electrode positions were tested: the left hip, lower back, middle back, and upper back. For each dispersive electrode position, GI in the blood pool (BP-GI) and GI during contact with the myocardium of the left atrial anterior wall (Myo-GI) were measured at 46 kHz in standby mode. Body mass index (BMI) and hematocrit served as surrogates for extracardiac and blood pool impedance, respectively. The lowest BP-GI and Myo-GI were observed with the middle back dispersive electrode (BP-GI: 119 ± 13 Ω; Myo-GI: 123 ± 13 Ω), followed by the upper back (122 ± 13 Ω; 126 ± 13 Ω), lower back (126 ± 14 Ω; 129 ± 14 Ω), and the left hip dispersive electrode (153 ± 15 Ω; 156 ± 14 Ω). With the middle back dispersive electrode, BMI and hematocrit predicted BP-GI and Myo-GI with acceptable accuracy (adjusted R

Indexed as

Bioelectrical ImpedanceBody Mass IndexElectrodesHematocritRadiofrequency catheter ablation

Identifiers

PMID41071280
PMCPMC12935730

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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.