Instruction for Authors
Aims and scope
Heart Beat Journal (HBJ) publishes high quality original articles and reviews of recognized scientists that deal with all scientific medicine in the area of arrhythmia research, including epidemiology, pathomechanism, the risk factors, biomarkers, prevention, management, therapy and control, as well as complications.

Heart Beat accepts the following papers: Extensive reviews/State of the Art Papers, Critical Reviews, Brief Reviews, Systematic Reviews, Meta-analyses, Original papers – both experimental, basic and clinical research, Case Reports and Letters to Editors (LTEs).

Full length (original) articles should not exceed 8 printed pages (4000 words including tables and references - about 20 typewritten double-spaced 8½" 11" sheets). Each article should contain structured abstract (up to 250 words), divided such as the text of the manuscript. Subject matter should be organized under suitable headings and subheadings such as: Structured Abstract, Introduction, Material and Methods, Results, Discussion, Conclusions, Acknowledgments and References. Footnotes should be avoided and their contents incorporated into the text. Manuscripts should be in their final form when submitted.

Reviews - each article should contain unstructured abstract (up to 150 words) and up to 5 key words and should have no more than 60 references. The number of words should not exceed 6000 words (both with the exception for systematic reviews).

Letters must be submitted within 4 weeks of the print issue date of the article. Replies will generally be solicited by the Editors. LTEs should not exceed 500. Provide a title page that includes authors’ names and institutional affiliations and a complete address for correspondence. Do not include abstract nor subheadings.

Short communications should be no more than 1000 words - 4 manuscript pages, excluding structured abstract (100-150 words), references, name(s) and address(es) of the signers. There should be no more than 15 references, no more than 2 tables or 1 figure, and no more than 5 authors, all of whom should sign the copyright release form. Keywords and name and mailing address of all authors should be included.

Case reports is intended for brief highly informative cases illustrated with a single critical image and/ or table. The full length version, which should include a single image and/or table, maximum six authors, a short title, between 250 and 500 words including a 60 word abstract, and up to five references. The submission of videos is encouraged; these will be hosted as supplementary data with the summary version. The summary should be no longer than 200 words and must not include an abstract or references.

Ethical consideration
Papers describing animal experiments can be accepted for publication only if the experiment conforms to the legal requirements in Poland as well as with the European Communities Council Directive of November 24, 1986 or the National Institute of Health Guide (National Institute of Health Publications No. 80-23, Revised 1978) for the care and use of Laboratory Animals for experimental procedure. Authors must provide a full description of their anesthetics and surgical procedures. Papers describing experiments on human subjects must include a statement that experiments were performed with the understanding and consent of each subject, with the approval of the appropriate local ethics committee.
Submission of manuscripts
All manuscripts written in English should be submitted to Editorial Office by electronic Editorial System of the Heart Beat Journal. Figures should be always submitted separately; linked files such as images or charts should also be provided. Authors are requested not to submit the manuscripts by post or e-mail.
In of legal aspects
In sending the manuscript the author(s) confirm(s) that (s)he has (they have) not previously submitted it to another journal (except for abstracts of no more than 250 words) or published it elsewhere. The author(s) also agree(s), if and when the manuscript is accepted for publication, to automatic and free transfer of copyright to the Publisher allowing for the publication and distribution of the material submitted in all available forms and fields of exploitation. The author(s) accept(s) that the manuscript will not be published elsewhere in any language without the written consent of the copyright holder, i.e. the Publisher. Appropriate Transfer of Copyright Agreement form is available online and will be also sent with page proof to corresponding author.
All manuscripts submitted should be accompanied by a covering letter including signed confirmation of the above and confirming that this publication has been approved by all co-authors (if any), as well as by the responsible authorities at the institution where the work has been carried out. Generally no more than six authors should be listed (except multicenter studies). All authors must sign the Authors Guarantee Form (available online) and send to Editors with the manuscript. Materials previously published should be accompanied by written consent for reprinting from the relevant Publishers. In the case of photographs of identifiable persons, their written consent should also be provided. Any potential conflict of interest will be dealt with by the local court specific to the Publisher. Legal relations between the Publisher and the author(s) are in accordance with Polish law and with international conventions binding on Poland.
Conflict of interests
Authors of research articles should disclose at the time of submission any financial arrangement they may have with a company whose product figures prominently in the submitted manuscript or with a company making a competing product. Such information will be held in confidence while the paper is under review and will not influence the editorial decision, but if the article is accepted for publication, the editors will usually discuss with the authors the manner in which such information is to be communicated to the reader.

Because the essence of reviews and editorials is selection and interpretation of the literature, the Journal expects that authors of such articles will not have any financial interest in a company (or its competitor) that makes a product discussed in the article.

Journal policy requires that reviewers, associate editors, editors, and senior editors reveal in a letter to the Editor-in-Chief any relationships that they have that could be construed as causing a conflict of interest with regard to a manuscript under review. The letter should include a statement of any financial relationships with commercial companies involved with a product under study.
Anonymous review
All manuscripts will be subject to a process of anonymous editorial review (the name of authors and their affiliations will be disclosed to the referees only when the review process is complete). In order to achieve this, the first page and the acknowledgements page will be removed from the manuscripts sent to referees. Manuscripts will be sent to 2 independent reviewers, and the information about acceptance should be limited to 4 weeks.
Preparation of manuscripts
Articles must be written in English, with either British or American spelling used consistently throughout. Authors not entirely familiar with English usage are advised to seek the assistance of an English speaker; correct style is the responsibility of the authors.

- Manuscripts should be typed, double-spaced, and fully corrected. Allow a margin at least 2.5 cm at the top, bottom and left side of the page. Text should not be justified, but flush left.
- The first page of each paper should indicate: the authors’ names, title of the paper, the institute where the work was conducted, complete name and address for correspondence with telephone and fax numbers, and e-mail address if available; running head not exceed 40 characters including space.
- The second page contains the abstract, which should be written in an informative style. Avoid generalizations and give essential details of research findings. For indexing purposes, a list of 3–5 key words (according to Index Medicus) in English and not included in the title should be typed below the abstract.
- The textual material of the article should be organized in a standard form with separate: Introduction, Material and Methods, Results, Discussion, Conclusion and References. Review articles should be divided into sections and subsections as appropriate without numbering.
- Do not underline in the text. Avoid footnotes. When essential, they are numbered consecutively and typed at the foot of the appropriate page.
- All dimensions and measurements must be specified in the metric system.
- The source of any drug and special reagent should be identified. Indicate doses and use the international names
- Particular attention needs to be paid to the selection of appropriate analysis of data and the results of statistical test should be incorporated in the results section. The Statistics Editor will check the statistical analysis of each submitted manuscript. The Editors reserve the right to check raw data.
- The nomenclature used should conform to the current edition of the Nomina Anatomica, Nomina Anatomica Veterinaria or to the Nomina Anatomica. Avium, Eponyms (e.g., Fallopian tube, Eustachian tube) should not be used.
- Legends of figures should be typed on separate sheet.
- Tables (numbered in Roman numerals) and illustrations (numbered in Arabic numerals) should be prepared on separate sheets.
- Abbreviations should be explained in full when first used in the text, table or figure.
- The editor reserves the right to make corrections.
- Tables require a brief but descriptive heading.
- The major divisions of the table should be indicated by horizontal rules.
- Explanatory matter should be included in footnotes, indicated in the body of the table in order of their appearance. All abbreviations used in the table should be explained in the table’s footnote.
- Tables must not duplicate material in the text or in illustration.
- The desired position of the figures and tables in the text should be indicated in the left margin.
- When possible, group several illustrations on one block for reproduction; figures and photographs should be attached as separate printouts (in the electronic version, as separate files); figures should be saved in one of the following formats: .tiff, .jpg, .bmp, .ppt or .eps. Photographs sent in the electronic form should be of the resolution of 300 dpi and in .tif or .jpg format. Do not place figures and photographs in (Word) MS Office files. Like all other figures, block should be prepared within a rectangular frame to fit within a single or double column width of 84 and 174 mm, respectively, and a maximum page height of 226 mm.
- Each figure should include scale magnification bar; do not use magnification factors in the figure legends.
- All figures, whether photographs, graphs or diagrams, should be numbered consecutively throughout.
- Color illustrations can be included, but the expense must be borne by the authors. The cost of color print for every successive 8 pages is 200 euros (VAT exclusive) irrespective of the number of color pages, i.e., the price remains the same whether there is one or eight pages. The Publisher makes out the bill to the Author.
The list of references (written on a separate sheet) should include only those publications that are cited in the text. Number references consecutively in the order in which they first appear in the text. Numbers in square brackets should give citation of literature references in the text at the appropriate places. All authors cited and only these must be included in the reference list. List all authors when there are six or fewer; when there are seven or more, list the first three, then „et al.”. References should be written as follows:

Journal papers: initials and names of all authors, full title of paper, journal abbreviation (according to Index Medicus), year of publication, volume (in Arabic numerals), first and last page (example below):

Nowak S, Zwolinska S, Walczak BA, et al. Mechanical aortic valve replacement in patients with stenosis or aortic valve regurgitation. The influence on improvement of haemodynamic parameters of heart. Eur J Heart Failure 2004;3(1):98-102.

Book and monographs: initials and names of all authors, full title, edition, publisher, place, year (example below):

Ringsven MK, Bond D. Gerontology and leadership skills for nurses. 2nd ed. Albany (NY): Delmar Publishers; 1996.

Chapter in a book:
Phillips SJ, Whisnant JP. Hypertension and stroke. In: Laragh JH, Brenner BM, editors. Hypertension: pathophysiology, diagnosis, and management. 2nd ed. New York: Raven Press; 1995. p. 465-78.

Conference proceedings:
Kimura J, Shibasaki H, editors. Recent advances in clinical neurophysiology. Proceedings of the 10th International Congress of EMG and Clinical Neurophysiology; 1995 Oct 15-19; Kyoto, Japan. Amsterdam: Elsevier; 1996.

Reference to articles that are accepted for publication may be cited as "in press", whereas manuscripts that are still in preparation or submitted for publication should be referred to as "unpublished data".

This journal should be cited in lists as Heart Beat
Authors should keep a copy of their article, as proofs will be sent to them without the manuscript. Corrections to the proofs should be restricted to printer’s errors only; other alterations will be charged to the authors. In order to maintain rapid publication, proofs should be returned within 48 hours after receipt, preferably by fax, courier mail or e-mail. If the Publisher receives no response from the authors after 5 days, it will be assumed that there are no errors to correct and the article will be published.