Evidence map›Paper›PMID 36737506›Full record

ArticleJournal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing2023

Ventricular arrhythmia detection for contemporary Biotronik and Abbott implantable cardioverter defibrillators with markedly prolonged detection in Biotronik devices.

Adam Oesterle, Sanket S Dhruva, Cara N Pellegrini, Bing Liem, Merritt H Raitt

Abstract read
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In one paragraph

Article in Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Algorithms and programming matters: implantable cardioverter defibrillator therapy in Biotronik and Abbott devices.Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing · 2023
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

Adam OesterleDivision of Cardiology, Department of Medicine, University of California San Francisco - Veterans Affairs San Francisco Health Care System, 4150 Clement Street, Building 203, Room 2A-25, San Francisco, CA, 94121, USA. adam.oesterle@ucsf.edu.ORCID http://orcid.org/0000-0003-1847-8662
Sanket S DhruvaDivision of Cardiology, Department of Medicine, University of California San Francisco - Veterans Affairs San Francisco Health Care System, 4150 Clement Street, Building 203, Room 2A-25, San Francisco, CA, 94121, USA.
Cara N PellegriniDivision of Cardiology, Department of Medicine, University of California San Francisco - Veterans Affairs San Francisco Health Care System, 4150 Clement Street, Building 203, Room 2A-25, San Francisco, CA, 94121, USA.
Bing LiemDivision of Cardiology, Department of Medicine, University of California San Francisco - Veterans Affairs San Francisco Health Care System, 4150 Clement Street, Building 203, Room 2A-25, San Francisco, CA, 94121, USA.
Merritt H RaittDivision of Cardiology, Veterans Affairs Portland Health Care System, Portland, OR, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundImplantable cardioverter defibrillators (ICDs) are typically programed with both ventricular tachycardia (VT) and ventricular fibrillation (VF) treatment zones. Biotronik and Abbott ICDs do not increment the VT counter when the tachycardia accelerates to the VF zone, which could result in a prolonged delay in tachycardia detection.

methodsPatients with Biotronik and Abbott ICDs receiving care at Veterans Affairs facilities in Northern California were identified. Patient information and device tracings for patients with any ICD therapies were examined to assess for possible delayed tachycardia detection.

resultsAmong 52 patients with Biotronik ICDs, 8 (15%) experienced appropriate ICD therapy over a median follow-up of 29 months. Among 68 patients with Abbott ICDs, 26 (38%) experienced appropriate ICD therapy over a median follow-up of 83 months. Three of the patients with Biotronik ICDs who received appropriate therapy experienced a delay in VT/VF detection due to the tachycardia rate oscillating between the VT and VF treatment zones (longest 31.2 s on detection), compared with four of the patients with Abbott ICDs (longest 4.1 s on the detection and 8 s on redetect). One of the patients with a Biotronik ICD experienced recurrent syncope associated with delayed detection and another died on the day of delayed detection. One of the patients with an Abbott ICD experienced syncope.

conclusionsBecause contemporary Biotronik and Abbott ICDs freeze the VT counters when tachycardia is in the VF zone, ICD therapies can be markedly delayed when the tachycardia oscillates between the VT and VF zone.

Indexed as

Defibrillators, ImplantableTachycardia, VentricularElectric CountershockHumansSyncopeVentricular FibrillationDefibrillator shocksDevice programmingImplantable cardioverter defibrillatorVentricular arrhythmias

Identifiers

PMID36737506

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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.