Evidence map›Paper›PMID 27776530›Full record

Trial reportTrials2016

Sequential Hybrid CryoMaze Ablation versus Surgical CryoMaze Alone for the Treatment of Atrial Fibrillation (SurHyb): study protocol for a randomized controlled trial.

Martin Eisenberger, Alan Bulava, Josef Kautzner, Petr Neuzil, Ales Mokracek, Jiri Hanis, Ladislav Dusek

Abstract readComparative StudyMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Trials, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Article
  2. Article
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

7 authors.

Martin EisenbergerSouth Bohemia Cardiac Centre, Budweis Hospital, B. Nemcove 54, Budweis, Czech Republic.
Alan BulavaFaculty of Medicine and Dentistry, Palacky University Olomouc, Olomouc, Czech Republic. alanbulava@seznam.cz.
Josef KautznerDepartment of Cardiology, Institute for Clinical and Experimental Medicine, Videnska 1958/9, Prague, Czech Republic.
Petr NeuzilDepartment of Cardiology, Na Homolce Hospital, Roentgenova 2, Prague, Czech Republic.
Ales MokracekSouth Bohemia Cardiac Centre, Budweis Hospital, B. Nemcove 54, Budweis, Czech Republic.
Jiri HanisSouth Bohemia Cardiac Centre, Budweis Hospital, B. Nemcove 54, Budweis, Czech Republic.
Ladislav DusekThe Institute of Biostatistics and Analyses, Masaryk University, Kamenice 5, Brno, Czech Republic.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAtrial fibrillation is common in patients with structural heart disease who are undergoing cardiac surgery. Surgical CryoMaze has been shown to be an effective treatment in several trials, but success rates have varied considerably, between 47-95 %. The sequential hybrid approach, combining surgical CryoMaze followed by radiofrequency catheter ablation, can achieve high freedom from atrial arrhythmias, even when rigorous methods to detect arrhythmias after the procedure are used. However, data from randomized trials comparing hybrid ablations to surgical ablations alone are lacking. METHODS/

designThe SurHyb study is a prospective, multicenter, randomized study. Patients with persistent or long-standing persistent atrial fibrillation will be randomized to either surgical CryoMaze alone or surgical CryoMaze followed by catheter ablation 3 months post-surgery. The primary outcome measure is arrhythmia-free survival without class I or III antiarrhythmic drugs, which will be evaluated using 7-day ECG Holter monitoring at 24 months. A total of 260 patients will be investigated from three medical centers in the Czech Republic to obtain the relevant information. DISCUSSION: This is the first randomized study that compares surgical CryoMaze alone with the staged hybrid surgical CryoMaze followed by catheter ablation in patients with persistent or long-standing persistent atrial fibrillation. These results will contribute to the optimization of the treatment for these patients.

trial registrationCzech Clinical Trials Registry, cz-301020151253 . Registered on 30 October 2015.

Indexed as

Catheter AblationCryosurgeryAnti-Arrhythmia AgentsAtrial FibrillationClinical ProtocolsCzech RepublicDisease-Free SurvivalElectrocardiography, AmbulatoryFemaleHumansMaleProspective StudiesRecurrenceResearch DesignTime FactorsTreatment OutcomeAnti-Arrhythmia AgentsAtrial fibrillationCatheter ablationCryoMazeHybrid approachRandomized controlled clinical trialSurgical ablation

Identifiers

PMID27776530
PMCPMC5078885

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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.