Evidence map›Paper›PMID 34322707›Full record

ArticleEuropace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology2021

Leadless left ventricular endocardial pacing for CRT upgrades in previously failed and high-risk patients in comparison with coronary sinus CRT upgrades.

Baldeep Singh Sidhu, Benjamin Sieniewicz, Justin Gould, Mark K Elliott, Vishal S Mehta, Timothy R Betts, Simon James, Andrew J Turley, Christian Butter, Martin Seifert and 17 more

Abstract read
In one paragraph

Article in Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing 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

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

  1. Upgrading right ventricular pacemakers to biventricular pacing or conduction system pacing: a systematic review and meta-analysis.Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology · 2023
    Pooled it
  2. Pooled it
  3. [Endocardial left ventricular pacing in 2025].Herzschrittmachertherapie & Elektrophysiologie · 2025
    Review
  4. Evolution of leadless pacemaker technology.European heart journal supplements : journal of the European Society of Cardiology · 2025
    Article
  5. Cost-effectiveness analysis of leadless cardiac resynchronization therapy.Journal of cardiovascular electrophysiology · 2023
    Article
  6. The evolving state of cardiac resynchronization therapy and conduction system pacing: 25 years of research at EP Europace journal.Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology · 2023
    Review
  7. Cardiac pacing and lead devices management: 25 years of research at EP Europace journal.Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology · 2023
    Review
  8. 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

27 authors.

Baldeep Singh SidhuSchool of Biomedical Engineering and Imaging Sciences, King's College London, UK.ORCID 0000-0002-1999-7360
Benjamin SieniewiczSchool of Biomedical Engineering and Imaging Sciences, King's College London, UK.
Justin GouldSchool of Biomedical Engineering and Imaging Sciences, King's College London, UK.ORCID 0000-0002-1897-5565
Mark K ElliottSchool of Biomedical Engineering and Imaging Sciences, King's College London, UK.
Vishal S MehtaSchool of Biomedical Engineering and Imaging Sciences, King's College London, UK.ORCID 0000-0001-6140-068X
Timothy R BettsOxford University Hospitals NHS Foundation Trust, Oxford, UK.
Simon JamesThe James Cook Hospital, South Tees Hospitals NHS Foundation Trust, Middlesbrough, UK.
Andrew J TurleyThe James Cook Hospital, South Tees Hospitals NHS Foundation Trust, Middlesbrough, UK.
Christian ButterImmanuel Heart Center Bernau & Brandenburg Medical School Theodor Fontane, Germany.
Martin SeifertImmanuel Heart Center Bernau & Brandenburg Medical School Theodor Fontane, Germany.
Lucas V A BoersmaSt. Antonius Ziekenhuis, Nieuwegein, Utrecht, Netherlands/AUMC, Amsterdam, Netherlands.
Sam RiahiAalborg University Hospital, Aalborg, Denmark.ORCID 0000-0003-1849-9463
Petr NeuzilNa Homolce Hospital, Prague, Czech Republic.
Mauro BiffiIRCCS Policlinico S'Or 25 sola-Malpighi, Bologna, Italy.
Igor DiembergerIRCCS Policlinico S'Or 25 sola-Malpighi, Bologna, Italy.
Pasquale VergaraSan Raffaele Scientific Institute, Milan, Italy.
Martin ArnoldFriedrich-Alexander-Universität Erlangen-Nürnberg, Department of Cardiology, Erlangen, Germany.
David T KeaneSt. Vincent's University Hospital, Dublin, Ireland.
Pascal DefayeCHU Grenoble Alpes, Grenoble, France.
Jean-Claude DeharoHopital La Timone, Marseille, France.
Anthony ChowSt. Bartholomew's Hospital, London, United Kingdom.
Richard SchillingSt. Bartholomew's Hospital, London, United Kingdom.
Jonathan M BeharSt. Bartholomew's Hospital, London, United Kingdom.
Christophe LeclercqUniv Rennes, CHU Rennes, INSERM, LTSI-UMR 1099, F-35000 Rennes, France.
Angelo AuricchioFondazione Cardiocentro Ticino, Via Tesserete 48, Lugano, Switzerland.ORCID 0000-0003-2116-6993
Steven A NiedererSchool of Biomedical Engineering and Imaging Sciences, King's College London, UK.
Christopher A RinaldiSchool of Biomedical Engineering and Imaging Sciences, King's College London, UK.

Funding

Wellcome Trust
6 · The paper itself

Abstract

aimsCardiac resynchronization therapy (CRT) upgrades may be less likely to improve following intervention. Leadless left ventricular (LV) endocardial pacing has been used for patients with previously failed CRT or high-risk upgrades. We compared procedural and long-term outcomes in patients undergoing coronary sinus (CS) CRT upgrades with high-risk and previously failed CRT upgrades undergoing LV endocardial upgrades. METHOD AND

resultsProspective consecutive CS upgrades between 2015 and 2019 were compared with those undergoing WiSE-CRT implantation. Cardiac resynchronization therapy response at 6 months was defined as improvement in clinical composite score (CCS) and a reduction in LV end-systolic volume (LVESV) ≥15%. A total of 225 patients were analysed; 121 CS and 104 endocardial upgrades. Patients receiving WiSE-CRT tended to have more comorbidities and were more likely to have previous cardiac surgery (30.9% vs. 16.5%; P = 0.012), hypertension (59.2% vs. 34.7%; P < 0.001), chronic obstructive airways disease (19.4% vs. 9.9%; P = 0.046), and chronic kidney disease (46.4% vs. 21.5%; P < 0.01) but similar LV ejection fraction (30.0 ± 8.3% vs. 29.5 ± 8.6%; P = 0.678). WiSE-CRT upgrades were successful in 97.1% with procedure-related mortality in 1.9%. Coronary sinus upgrades were successful in 97.5% of cases with a 2.5% rate of CS dissection and 5.6% lead malfunction/displacement. At 6 months, 91 WiSE-CRT upgrades and 107 CS upgrades had similar improvements in CCS (76.3% vs. 68.5%; P = 0.210) and reduction in LVESV ≥15% (54.2% vs. 56.3%; P = 0.835).

conclusionDespite prior failed upgrades and high-risk patients with more comorbidities, WiSE-CRT upgrades had high rates of procedural success and similar improvements in CCS and LV remodelling with CS upgrades.

Indexed as

Cardiac Resynchronization TherapyCoronary SinusHeart FailureEndocardiumHumansProspective StudiesTreatment OutcomeCardiac resynchronization therapyEndocardial pacingEpicardial pacingWiSE-CRT system

Identifiers

PMID34322707
PMCPMC8502498

What OpenQuestion holds

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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.