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Instructions to Authors

 EP - Europace - The European Journal of Pacing, Arrhythmias and Cardiac Electrophysiology - is an official Journal of the European Heart Rhythm Association (EHRA), a Registered Branch of the European Society of Cardiology (ESC) and the ESC Working Group on Cardiac Cellular Electrophysiology, and aims to provide an international avenue of communication for top quality original scientific work and reviews in the fields of arrhythmias and pacing. Clinical investigations, basic science translational research, technical issues, short case reports, comprehensive reviews, editorial comments, educational articles, images in pacing and electrophysiology, book reviews and correspondence are included.

Papers that do not adhere to the following instructions will be returned for revision before assessment.


Conflict of Interest

All authors must declare any conflicts of interest. When submitting your manuscript via the online submission system (Editorial Manager), you will be asked whether you have any conflicts of interest. As submitting author, it is your responsibility to ascertain any conflicts of interest from your co-authors and to highlight these accordingly. If you are unable to declare any conflicts of interest on behalf of your co-authors, all contributing authors will need to complete and return Conflict of Interest forms. These must be sent to the editorial office by fax to: +44 (0)1865 355906.

Any potential conflict of interest that might constitute an embarrassment to any of the authors if it were not to be declared and were to emerge after publication should be declared. Such conflicts might include, but are not limited to, author (or first degree relative) shareholding in or receipt of a grant or consultancy fee from a company whose product features in the submitted manuscript or which manufactures a competing product.

In addition, all authors must submit a statement of Conflict of Interest to be published at the end of their article. If no Conflict of Interest is declared, this will be stated in the article using the following wording:

'Conflict of interest: none declared'

Open access option for authors

Assignment of copyright

EP - Europace authors have the option to publish their paper under the Open Access; whereby, for a charge, their paper will be made freely available online immediately upon publication. After your manuscript is accepted the corresponding author will be invited to complete a mandatory licence to publish agreement online. As part of the licensing process you will be asked to indicate whether or not you wish to pay for Open Access. If you do not select the Open Access option, your paper will be published with standard subscription-based access and you will not be charged.

Oxford Open articles are published under Creative Commons licences.

RCUK/Wellcome Trust funded authors publishing in EP - Europace can use the Creative Commons Attribution licence (CC BY) for their articles.

All other authors may use the Creative Commons Attribution Non-Commercial licence (CC BY-NC)

More information about Open Access licences, funding body compliance and author self-archiving.

You can pay Open Access charges using our Author Services site. This will enable you to pay online with a credit/debit card, or request an invoice by email or post. The open access charges are as follows:

Regular charge:

  • CC BY: £2150/$3750/€3200
  • CC BY-NC: £1800/$3200/€2750

Reduced Rate Developing country reduced charge*:

  • CC BY: £1075/$1875/€1600
  • CC BY-NC: £900/$1600/€1375

Free Developing country waived charge*: £0 /$0 / €0

*Visit our developing countries page (list of qualifying countries).

Orders from the UK will be subject to the current UK VAT charge. For orders from the rest of the European Union, OUP will assume that the service is provided for business purposes. Please provide a VAT number for yourself or your institution and ensure that you account for your own local VAT correctly.

Offprints and Single Issues

Upon online publication, the corresponding author for each article will receive, automatically and free of charge, a url giving free access to the article online. This url may be distributed among co-authors and interested colleagues. Additionally, authors may order offprints or copies of the issue in which their article appears by using the Oxford Journals Author Services website, through which they signed the licence form.

The European Society of Cardiology may promote and make available to certain parties the finalised version of an article shortly prior to publication in the journal.

Submission of manuscripts

EP - Europace operates a web-based system for submission and peer-review, Editorial Manager. This system is intended to reduce manuscript processing times. Text, tables and figures should be prepared in accordance with the instructions given under "Preparation of Manuscripts" below.

Authors must specify the category for which their submission is intended.

If you need help with the electronic submission process please contact the editorial office. Enquiries about the review process and other journal matters should also be directed to the Editorial Office.

Online submission

Please go to the Editorial Manager website for EP - Europace, and follow the instructions given on screen. First-time users must click 'Register' on the navigation menu at the top of the screen, and enter the required information. The system will send you an automatic e-mail with your username and password. Detailed guidelines are available at the Editorial Manager site, by clicking on 'Help' or viewing the author or reviewer tutorials.

You will be asked to supply information about your manuscript and then attach your files containing the text and any figures and tables. Editorial Manager will create a PDF from your data, which is the format in which the manuscript will be made available to the editors and referees during the peer-review process.

The manuscript text, references and figure legends should be prepared in a single file. Papers should be submitted as Microsoft Word documents where possible, although other standard word-processing formats may be acceptable. The manuscript must not be submitted in .pdf format.

Any appendices must be supplied separately, and will be published as online-only supplementary data. Please change any references to Appendices in the manuscript to 'Supplementary', e.g. Supplementary Table S1, Supplementary Appendix 2.

Tables and figures may be included in the manuscript file, but must appear at the end of the text on separate sheets (and not embedded in the text).

If preferred, tables and illustrations may be prepared and submitted in separate files. Electronically submitted figures should be in high resolution and in one of the following formats: tiff, bitmap (.bmp), jpeg (.jpg), postscript (.ps or .eps) or as PowerPoint or Excel files. (Should the manuscript be accepted, the original photographs may be required for use in the production process.) Tables may be submitted as Word tables, or in .rtf format.

You will be required to enter the Abstract, Condensed Abstract, Representative Figure and Keywords during the submission process. These may be copied and pasted from the manuscript document, but must still appear in the manuscript itself. Please supply the names and addresses of three referees to whom your manuscript may be sent for review in the 'Enter Comments' section of your electronic submission.

When completing the 'Add Authors' section, please enter the names of the all the authors listed on the manuscript.

Fast track publication

The journal offers fast track publication for manuscripts that are of particular topical interest. Authors wishing to have fast track publication should follow the standard submission process and indicate in their covering letter why their paper is suitable for this expedited service. If the Editors decide that the paper should undergo expedited review, they will aim to give a first decision within seven days. After acceptance the Publisher will aim to publish the article online within ten days, provided that the proofs are returned within 48 hours. If the paper is not accepted for fast track publication the manuscript will go through the normal review process.

Manuscript resubmissions

Authors resubmitting manuscripts to the journal after a previous decision of 'reject with opportunity to resubmit' shoud ensure that they respond to all the points raised by reviewers in the inital peer review. Details of these changes can be included in the covering letter.

Article categories

EP - Europace accepts the following categories of articles:

Clinical Research: Clinical investigations based on either normal subjects or patients. This category ranges from case series to large scale clinical trials. Papers dealing with trial designs are not encouraged unless the trial concerns more than 500 patients, is novel in design and subject and the authors are prepared to unreservedly offer the full paper dealing with the primary endpoint to Europace. Articles are usually limited to 3,500 words (not including references, tables and figures), up to 4 figures and 4 tables (or a combined total of tables and figures that is not greater than 8) and 20 references. Authors should include a list of two to six bullet points outlining the key, novel outcomes of the research they present. These should be listed under a heading called ‘What’s New?’ at the start of the paper and should come to no more than 150 words in total.

Basic science papers: The results of cardiovascular pre-clinical research will be considered for publication provided they have potential clinical relevance. Translational research is of particular interest to the journal. Articles are usually limited to 6000 words (not including references, tables and figures), up to 7 figures or tables and 20 references. Authors should include a list of two to six bullet points outlining the key, novel outcomes of the research they present. These should be listed under a heading called ‘What’s New?’ at the start of the paper and should come to no more than 150 words in total.

Technical issues: This category includes articles on new methods or devices for the diagnosis or treatment of patients with cardiac arrhythmias, conduction disturbances or ventricular dyssychrony. Articles are usually limited to 3,500 words (not including references, tables and figures), up to 3 figures and 3 tables and 20 references. Authors should include a list of two to six bullet points outlining the key, novel outcomes of the research they present. These should be listed under a heading called ‘What’s New?’ at the start of the paper and should come to no more than 150 words in total.

Reviews: Europace publishes a number of scholarly, comprehensive reviews the aims of which are to summarize and critically evaluate research in the field addressed and identify future implications. Reviews should not exceed 5000 words, 5 figures, 5 tables and 150 references.

Editorials: Papers in this section will either provide comment, context and critique of articles published in EP - Europace or provide our readers with focused coverage of topical issues in cardiovascular medicine and related disciplines which are of high current interest and potential. All editorials should be limited to 1500 words and 10 references, which must include a reference to the original article where applicable.

Correspondence: Letters to the Editor must not exceed 500 words and should focus on a specific article published in the EP - Europace within the preceding 12 weeks. No original data may be included. The number of references for this type of paper is restricted to a maximum of 5. Authors will receive pre-publication proofs, and the authors of the article cited will be invited to reply.

Please note that the journal no longer accepts Short Communications.

Case reports: Please note that the format of Case reports has been revised. This category is intended for brief highly informative cases illustrated with a single critical image or table. The full length version, which should include a single image or table, maximum six authors, a short title, between 250 and 500 words including a 60 word abstract, and up to three references, will be published on the European Heart Rhythm Association/European Society of Cardiology website. The submission of videos is encouraged; these will be hosted as supplementary data with the summary version in EP – Europace.

An unstructured summary version will be published in EP – Europace as an ‘EP Express’ article. The summary should be no longer than 200 words and must not include an abstract or references. It must include a clear image at a size of 6x6cm, with no more than 2 panels. This image should be cited and described in the text. No figure legend is permitted. The summary version will be fully citable with a doi (digital object identifier) number and will be indexed on PubMed. Please provide the full version and the summary version in separate Word documents, with the files clearly named. Submissions that do not satisfy all of the above requirements will not be considered.

Images: This category is intended for striking, illustrative, or rare single clinical images such as electrocardiograms, echocardiograms, tomograms, x-rays or pathology specimens Images may be published on the cover of the Journal or within the pages of the journal. Images should be submitted as one figure, with at most 2 separate lettered panels if required. The complete image should also have an Aspect Ratio 1:1. It will occupy a single column in the journal and should be approximately 6cm x 6cm in size. The image should be submitted with the names of no more than three authors and the clinical message contained in the picture should be amplified in a 100 word description, which will be included with the image. No references or figure legend should be included. The title should have no more than 8 words.

Manuscript preparation


The manuscript should be typed on one side only of A4 paper, double spaced using 2.5 cm wide margins all round. The text should be arranged as follows: Title page, Structured Abstract and Keywords, Introduction, Methods, Results, Discussion, Acknowledgements, References, Appendices, Tables, Figure legends. (For review articles, the format may be altered, if necessary; an abstract is not required but keywords should be supplied.) References, figures and tables should be numbered in the order in which they are cited in the text. Generic names should be used for drugs and instruments whenever possible.

Title page

The title page should bear: (a) title, (b) name(s) of authors, (c) institution(s) where work was done, (d) addresses of all authors, (e) name of author to whom proofs should be sent, with complete postal address, telephone and fax numbers, and e-mail details.

Abstracts and keywords

An abstract (maximum 250 words) should be typed double spaced. The abstract should be structured under the headings (1) Aims, (2) Methods (3) Results (4) Conclusion, followed by a list of three to six keywords.

Condensed abstract

An unstructured abstract of no more than 50 words, typed double spaced on a separate page.

'What's New?'

Authors of Clinical Research, Basic Science, and Technical Issues papers should include a list of two to six bullet points outlining the key, novel outcomes of the research they present. These should be listed under a heading called ‘What’s New?’ at the start of the paper and should come to no more than 150 words in total.


Acknowledgements and details of support in the form of grants, equipment or drugs are typed at the end of the text before References.


References are identified in the text by arabic numerals and numbered in the order cited. References are typed double spaced on sheets separate from the text in the Vancouver style. Complete information should be given for each reference, including title of article, abbreviated journal title and inclusive page numbers. The first six authors should be listed, followed by et al.

Please note: where a paper cited in the references of your paper has been published jointly in EP-Europace and another publication, authors are requested to cite the EP-Europace version of the paper.


Gianfranchi L, Brignole M, Menozzi C, Lolli G, Bottoni N. Determinants of development of permanent atrial fibrillation and its treatment. Europace 1999; 1: 30–46.

Abello M, Merino JL, Peinado R, Gnoatto M, Arias MA, Gonzalez-Vasserot M, et al. Syncope following cardioverter defibrillator implantation in patients with spontaneous syncopal monomorphic ventricular tachycardia. Eur Heart J 2006; 27:89-95.

Ebels T, Elzenga NJ, Brenken U. Right atrial auricle as inter-caval tunnel in the cavopulmonary connexion: method to avoid the sinus node and its blood supply. In: Minami K, Korfer R, Wada J, eds. Cardiothoracic Surgery. Amsterdam: Elsevier Excerpta Medica 1992: 9–16.

ESC Knowledge Centre Surveys Program, Heart Failure II. http://www.escardio.org/guidelines-surveys/ehs/heart-failure/Pages/survey-hf2.aspx#.VDewJvldXTo (10 October 2014, date last accessed).

Personal communications, manuscripts in preparation and other unpublished data are not cited in the reference list but are mentioned in the text in parentheses. Titles of journals should be abbreviated in accordance with Index Medicus (see list printed annually in the January issue of Index Medicus).


There is no charge for colour figures in EP- Europace.

Authors are asked to use the journal's colour scheme in charts and diagrams as much as possible. PowerPoint allows the specification of custom colour according to the RGB definition.

Details of the journal's colour scheme

The Publisher may re-draw any charts or graphs using the colour palette where necessary during the production process. Authors will have the opportunity to correct any inappropriate changes at the proof correction stage.

All illustrations should be referred to as figures and should be numbered in a single sequence in the order in which they are mentioned in the text.

Electronically submitted figures should be in high resolution and in one of the following formats: tiff, bitmap (.bmp), jpeg (.jpg), portable data format (.pdf) or postscript (.ps or .eps). The resolution required for publication is 300-500 dpi.

If there is difficulty in submitting figures electronically, they may be sent by post to the Editorial Office. (Consideration of the manuscript will not begin until all materials have been received).

Useful information on preparing your figures for publication.

Representative Figure

Authors should designate a single figure that best summarizes their techniques, their results or the impact of their work. This figure (generally in colour) may be used as a cover illustration for EP - Europace or appear in its table of contents.


Tables are typed on separate sheets with the table number (in arabic numerals) and title above and any explanatory notes below.

Supplementary data

Supporting material that is not essential for inclusion in the full text of the manuscript, but would nevertheless benefit the reader, can be made available by the publisher as online-only content, linked to the online manuscript. The material should not be essential to understanding the conclusions of the paper, but should contain data that is additional or complementary and directly relevant to the article content. Such information might include more detailed methods, extended data sets/data analysis, list of Investigators, or additional figures.

All text and figures must be provided in suitable electronic formats (instructions for the preparation of Supplementary data can be viewed here). All material to be considered as Supplementary data must be submitted at the same time as the main manuscript for peer review. It cannot be altered or replaced after the paper has been accepted for publication. Please indicate clearly the material intended as Supplementary data upon submission. Also ensure that the Supplementary data is referred to in the main manuscript where necessary.

Experimental Ethics and Reporting

Human experimentation: Studies should comply with the Declaration of Helsinki, and the research protocol must be approved by the locally appointed ethics committee. Informed consent must be obtained from the subjects (or their legally authorized representative). These facts must be stated in the manuscript.

Clinical Trials: Randomised clinical trials should be reported according to CONSORT guidelines. All clinical trials, in particular those involving pharmaceuticals, devices, or aspects relating to nutrition, should be registered prospectively in publically accessible databases (such as www.clinicaltrials.gov and www.clinicaltrialsregister.eu), and the paper should include registration numbers and the name of the register.

Animal experimentation: EP - Europace aims at detailed and high quality reporting of animal experiments and suggests authors follow the ARRIVE guidelines when preparing their manuscript. Authors may be required to provide evidence that they obtained ethical and /or legal approval prior to conducting the research.


Crossref Funding Data Registry

In order to meet your funding requirements authors are required to name their funding sources, or state if there are none, during the submission process. For further information on this process or to find out more about the CHORUS initiative please click here.

Details of all funding sources for the work in question should be given in a separate section entitled 'Funding'. This should appear before the 'Acknowledgements' section.

The following rules should be followed:

  • The sentence should begin: ‘This work was supported by …’
  • The full official funding agency name should be given, i.e. 'the National Cancer Institute at the National Institutes of Health’ or simply 'National Institutes of Health' not ‘NCI' (one of the 27 subinstitutions) or 'NCI at NIH' (full RIN-approved list of UK funding agencies) Grant numbers should be complete and accurate and provided in brackets as follows: ‘[grant number ABX CDXXXXXX]'
  • Multiple grant numbers should be separated by a comma as follows: ‘[grant numbers ABX CDXXXXXX, EFX GHXXXXXX]’
  • Agencies should be separated by a semi-colon (plus ‘and’ before the last funding agency)
  • Where individuals need to be specified for certain sources of funding the following text should be added after the relevant agency or grant number 'to [author initials]'.

An example is given here: ‘This work was supported by the National Institutes of Health [P50 CA098252 and CA118790 to R.B.S.R.]; and the Alcohol & Education Research Council [hfygr667789].’

Oxford Journals will deposit all NIH-funded articles in PubMed Central. See here for details. Authors must ensure that manuscripts are clearly indicated as NIH-funded using the guidelines above.

Declaration by authors

A covering letter, signed by all authors stating that they have seen and approved the paper and that the work has not been, and will not be, published elsewhere, should be sent by post to the Editorial Office.

Units and abbreviations

Use SI units of measurement. Avoid abbreviations in the title and abstract and explain abbreviations when they first occur in the text.

DNA sequences and GenBank accession numbers

For each and every gene accession number cited in an article, authors should type the accession number in bold, underlined text. Letters in the accession number should always be capitalised. Example: "(GenBank accession nos. AI631510, AI631511, AI632198, and BF223228), a B-cell tumour from a chronic lymphatic leukaemia (GenBank accession no. BE675048), and a T-cell lymphoma (GenBank accession no. AA361117)".


If illustrations are borrowed from published sources, written permission must be obtained from both publisher and author, and a credit line giving the source added to the legend. If text material totalling 250 to 300 words, or any tables, are borrowed verbatim from published sources, written permission is required from both publisher and author. With shorter quotations, it is sufficient to add a bibliographic credit. Permission letters for reproduced text or illustrations must accompany the manuscript. If you have been unable to obtain permission, please point this out.


PDF proofs will be e-mailed to the corresponding author. Major alterations (other than corrections of typesetting errors) instigated by the author at proof stage will be charged to the author. Proofs should be returned to Oxford Journals within 2 working days of receipt. Proofs are also read by the Editor-in-Chief, who reserves the right of final decision.


A URL providing free access to the online version of the article will be e-mailed to the corresponding author. This link may then be distributed to interested parties. Paper offprints may be ordered at proof stage using the Offprint Order Form sent with the proof.

Orders from the UK will be subject to a 17.5% VAT charge. For orders from elsewhere in the EU you or your institution should account for VAT by way of a reverse charge. Please provide us with your or your institution’s VAT number.


The editors of EP - Europace will select the referees to whom the manuscript will be sent for review. Up to 4 referees may be proposed by authors provided that they supply full names and contact details. Referees will be asked to declare any potential conflict of interest. The names and potential conflicts of interest of referees who have assisted the journal to accept a manuscript for publication will be printed with the paper.

EP - Europace self-archiving policy

Author Self-Archiving/Public Access policy

For information about this journal's policy, please visit our Author Self-Archiving Policy page.

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