ArticleJournal of arrhythmia2020
Study Design of the Nationwide Japanese Lead Extraction (J-LEX) Registry: Protocol for a Prospective, Multicenter, Open Registry.
Article in Journal of arrhythmia, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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.
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.
Who cites it
4 citing papers in PubMed, 6 citations in OpenAlex.
- The Japanese Lead Extraction Registry (J-LEX): Annual Report in 2024.Journal of arrhythmia · 2025Article
- The Japanese lead extraction registry (J-LEX): Annual report 2020.Journal of arrhythmia · 2022Article
- Japanese Lead EXtraction (J-LEX) registry: Annual report 2019.Journal of arrhythmia · 2022Article
- Study Design of the Nationwide Japanese Lead Extraction (J-LEX) Registry: Protocol for a Prospective, Multicenter, Open Registry.Journal of arrhythmia · 2020Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
11 authors at 7 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundTransvenous lead extractions (TLEs) in Japan have grown to become the standard therapy since the approval of the laser extraction system in 2008. However, little is known about the current indications, methods, success rate, and acute complications in the real-world setting.
methodsThe Japanese Lead EXtraction (J-LEX) registry is a nationwide, multicenter, observational registry, performed by the Japanese Heart Rhythm Society (JHRS) in collaboration with the National Cerebral and Cardiovascular Center. This study is a nationwide registry ordered by the JHRS and its data are collected prospectively using the Research Electronic Data Capture (REDCap) system. The acute success rate at discharge and complications associated with TLEs will be collected in all cases. Based on the provided information, the annual incidence and predictive factors for the outcomes will be investigated by the Event Assessment Committee (EAC). This registry started in July 2018 and the number of participating medical institutions will be more than 50 hospitals and the target number of procedures will be 500-1000 per year. We will also compare the results with other registries in foreign countries.
resultThe results of this study are currently under investigation.
conclusionThe J-LEX registry will provide real-world data regarding the results and complications of TLEs for the various types of indications, methods, and performing hospitals in Japan.
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Registered trials
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.