Evidence map›Paper›PMID 29778861›Full record

ArticleJACC. Cardiovascular imaging2019

Multicenter Randomized Controlled Crossover Trial Comparing Hemodynamic Optimization Against Echocardiographic Optimization of AV and VV Delay of Cardiac Resynchronization Therapy: The BRAVO Trial.

Zachary I Whinnett, S M Afzal Sohaib, Mark Mason, Edward Duncan, Mark Tanner, David Lefroy, Mohamed Al-Obaidi, Sue Ellery, Francisco Leyva-Leon, Tim Betts and 18 more

Registry-linked trialAbstract readComparative StudyEquivalence TrialMulticenter Study
In one paragraph

Article in JACC. Cardiovascular imaging, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT01258829 (British Randomised Controlled Trial of AV and VV Optimisation), which is not on this map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing 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.

NCT01258829 nacompletednot on this map

British Randomised Controlled Trial of AV and VV Optimisation (BRAVO): Randomised Clinical Trial of the Effects of Non-invasive Haemodynamic Optimisation of Cardiac Resynchronisation Devices on Exercise Capacity

TypeinterventionalSponsorImperial College LondonRan2010 to 2015Enrolled403ConditionsHeart FailureArmsNon-invasive haemodynamic optimisation, ECHO optimisation
3 · Its place in the literature

Who cites it

19 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Maximizing QRS duration reduction in contemporary cardiac resynchronization therapy is feasible and shorter QRS duration is associated with better clinical outcome.Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing · 2023
    Article
  8. Frontiers in conduction system pacing: treatment of long PR in patients with heart failure.European heart journal supplements : journal of the European Society of Cardiology · 2023
    Article
  9. Article
  10. Article
  11. Inefficient diastolic filling in dual-chamber pacemaker recipients: impact of atrio-ventricular interval shortening (AVI-SHORT study).Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing · 2023
    Article
  12. Managing arrhythmia in cardiac resynchronisation therapy.Frontiers in cardiovascular medicine · 2023
    Review
  13. Article
  14. Non-invasive hemodynamic determination of patient-specific optimal pacing mode in cardiac resynchronization therapy.Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing · 2021
    Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

28 authors.

Zachary I WhinnettDepartment of Cardiology, International Centre for Circulatory Health, National Heart and Lung Institute, Imperial College London, London, United Kingdom.
S M Afzal SohaibDepartment of Cardiology, International Centre for Circulatory Health, National Heart and Lung Institute, Imperial College London, London, United Kingdom.
Mark MasonDepartment of Cardiology, Royal Brompton & Harefield NHS Trust, Middlesex, United Kingdom.
Edward DuncanDepartment of Cardiology, Bristol Heart Institute, Bristol, United Kingdom.
Mark TannerDepartment of Cardiology, Western Sussex Hospitals NHS Foundation Trust, West Sussex, United Kingdom.
David LefroyDepartment of Cardiology, International Centre for Circulatory Health, National Heart and Lung Institute, Imperial College London, London, United Kingdom.
Mohamed Al-ObaidiDepartment of Cardiology, Frimley Health, Wexham Park Hospital, Slough, United Kingdom.
Sue ElleryDepartment of Cardiology, Brighton & Sussex University Hospitals NHS Trust, Brighton, United Kingdom.
Francisco Leyva-LeonDepartment of Cardiology, University Hospitals Birmingham NHS Trust, Birmingham, United Kingdom.
Tim BettsDepartment of Cardiology, Oxford University Hospitals NHS Trust, Oxford, United Kingdom.
Mark DayerDepartment of Cardiology, Taunton & Somerset NHS Foundation Trust, United Kingdom.
Paul FoleyDepartment of Cardiology, Great Western Hospitals NHS Foundation Trust, Swindon, United Kingdom.
Jon SwinburnDepartment of Cardiology, Royal Berkshire Hospitals NHS Trust, Reading, United Kingdom.
Martin ThomasDepartment of Cardiology, University College London Hospitals NHS Foundation Trust, London, United Kingdom.
Raj KhianiDepartment of Cardiology, Milton Keynes Hospital NHS Trust, Milton Keynes, United Kingdom.
Tom WongDepartment of Cardiology, Royal Brompton & Harefield NHS Trust, Middlesex, United Kingdom.
Zaheer YousefDepartment of Cardiology, University Hospital of Wales, Cardiff, United Kingdom.
Dominic RogersDepartment of Cardiology, Royal Free Hospital NHS Trust, London, United Kingdom.
Paul R KalraDepartment of Cardiology, Portsmouth Hospitals NHS Trust, Portsmouth, United Kingdom.
Vignesh DhileepanDepartment of Cardiology, International Centre for Circulatory Health, National Heart and Lung Institute, Imperial College London, London, United Kingdom.
Katherine MarchDepartment of Cardiology, International Centre for Circulatory Health, National Heart and Lung Institute, Imperial College London, London, United Kingdom.
James HowardDepartment of Cardiology, International Centre for Circulatory Health, National Heart and Lung Institute, Imperial College London, London, United Kingdom.
Andreas KyriacouDepartment of Cardiology, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, United Kingdom.
Jamil MayetDepartment of Cardiology, International Centre for Circulatory Health, National Heart and Lung Institute, Imperial College London, London, United Kingdom.
Prapa KanagaratnamDepartment of Cardiology, International Centre for Circulatory Health, National Heart and Lung Institute, Imperial College London, London, United Kingdom.
Michael FrenneauxDepartment of Cardiology, Institute of Medical Sciences, University of Aberdeen Foresterhill, Aberdeen, United Kingdom.
Alun D HughesDepartment of Cardiology, Institute of Cardiovascular Sciences, University College London, London, United Kingdom.
Darrel P FrancisDepartment of Cardiology, International Centre for Circulatory Health, National Heart and Lung Institute, Imperial College London, London, United Kingdom. Electronic address: d.francis@imperial.ac.uk.

Funding

British Heart Foundation FS/10/38/28268British Heart Foundation FS/13/44/30291
6 · The paper itself

Abstract

objectivesBRAVO (British Randomized Controlled Trial of AV and VV Optimization) is a multicenter, randomized, crossover, noninferiority trial comparing echocardiographic optimization of atrioventricular (AV) and interventricular delay with a noninvasive blood pressure method.

backgroundCardiac resynchronization therapy including AV delay optimization confers clinical benefit, but the optimization requires time and expertise to perform.

methodsThis study randomized patients to echocardiographic optimization or hemodynamic optimization using multiple-replicate beat-by-beat noninvasive blood pressure at baseline; after 6 months, participants were crossed over to the other optimization arm of the trial. The primary outcome was exercise capacity, quantified as peak exercise oxygen uptake. Secondary outcome measures were echocardiographic left ventricular (LV) remodeling, quality-of-life scores, and N-terminal pro-B-type natriuretic peptide.

resultsA total of 401 patients were enrolled, the median age was 69 years, 78% of patients were men, and the New York Heart Association functional class was II in 84% and III in 16%. The primary endpoint, peak oxygen uptake, met the criterion for noninferiority (p

conclusionsOptimization of cardiac resynchronization therapy devices by using noninvasive blood pressure is noninferior to echocardiographic optimization. Therefore, noninvasive hemodynamic optimization is an acceptable alternative that has the potential to be automated and thus more easily implemented. (British Randomized Controlled Trial of AV and VV Optimization [BRAVO]; NCT01258829).

Indexed as

Blood Pressure DeterminationCardiac Resynchronization TherapyEchocardiography, DopplerHemodynamicsAction PotentialsAgedBlood PressureCross-Over StudiesExercise TestExercise ToleranceFemaleHeart FailureHeart RateHumansMaleMiddle Agedbiventricular pacingcardiac resynchronization therapyechocardiographic optimizationheart failurehemodynamic optimizationoptimization

Identifiers

PMID29778861
PMCPMC6682561

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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.