Evidence map›Paper›PMID 41517921›Full record

ArticleJournal of cardiovascular electrophysiology2026

Approval Lag for Ablation Catheters: A Comparative Analysis of Regulatory Timelines in the European Union, United States, and Japan.

Gaku Oguri, Katsuhito Fujiu, Norihiko Takeda

Abstract readComparative Study
In one paragraph

Article in Journal of cardiovascular electrophysiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

3 authors.

Gaku OguriDepartment of Cardiovascular Medicine, The University of Tokyo, Tokyo, Japan.ORCID 0000-0002-1386-8293
Katsuhito FujiuDepartment of Cardiovascular Medicine, The University of Tokyo, Tokyo, Japan.
Norihiko TakedaDepartment of Cardiovascular Medicine, The University of Tokyo, Tokyo, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionApproval timelines for ablation catheters differ across major markets, potentially delaying clinical access. This study aimed to quantify approval lags for contemporary ablation catheters across the EU, the US, and Japan.

methodsWe retrospectively identified therapeutic ablation catheters with documented approval dates in the European Union, the United States, and Japan using data from PMDA, FDA, and European notified-body/manufacturer sources. Non-therapeutic accessories were excluded. Month-level approval lags were calculated for each regional pair.

resultsTwenty-six devices met the inclusion criteria. Mean approval lags were 46.2 months for Japan versus EU, 16.7 months for Japan versus US, and 29.5 months for EU versus US. Medians were lower across all comparisons owing to several long-lag outliers. Legacy cryoablation catheters showed the greatest delays, whereas recent pulsed-field ablation systems were approved in closer temporal proximity across regions.

conclusionSubstantial cross-regional heterogeneity in ablation-catheter approvals persists, but recent PFA devices demonstrate that near-synchronous submissions can narrow the gap. Regulatory convergence and coordinated sponsor strategies may further accelerate patient access.

Indexed as

Cardiac CathetersCatheter AblationDevice ApprovalEquipment DesignEuropean UnionHumansJapanRetrospective StudiesTime FactorsUnited Statesablation catheterscross‐regional comparison pulsed‐field ablation (PFA)cryoablation devicesmedical device lagregulatory approval timelinesregulatory convergence

Identifiers

PMID41517921
PMCPMC12980451

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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.