Author Guidelines

Last modified: 11.01.2019


Kardiologia Polska (Kardiol Pol) is the official journal of the Polish Cardiac Society (PTK, Polskie Towarzystwo Kardiologiczne). This monthly journal aims to provide a platform for sharing knowledge in cardiology, from basic science to translational and clinical research on cardiovascular diseases. All articles published in Kardiol Pol are fully citable with a digital object identifier (DOI) and are indexed in PubMed.

Author Statement form

All authors submitting a manuscript to Kardiol Pol should download, print, and complete the Author Statement form. The form should be filled out using capital letters, signed by all authors, and sent via post to the editorial office. A scan of the completed form should be uploaded in the electronic system on manuscript submission.

Click here to download the Author Statement form.


Each author should have participated sufficiently in the work to take public responsibility for appropriate portions of the content. All authors should have contributed substantially to all or any of the following: the concept and design of the study, data collection, data analysis (including statistics) and interpretation, drafting the manuscript, and revising it critically for essential intellectual content. Each author should approve the final version of the manuscript. Additional authors or contributors who do not fulfil the above criteria, e.g. technicians, persons involved in patient recruitment or figure drafting, should be acknowledged in the Acknowledgements section. If required, the two first authors may be listed as the authors who equally contributed to the submitted work and may be considered the “first” authors; this should be clearly indicated on the title page with an asterisk next to the authors’ names and the following statement below the affiliations: “Both authors equally contributed to the study.”

Once the manuscript is accepted for publication no changes to the authorship (including removing or adding an author, or changing the order of authors) will be allowed.

Conflict of interest

All authors must declare any conflicts of interest during submission of their manuscript. Any conflict of interest should be listed by the corresponding author in the Author Statement form.

Any potential conflict of interest should be declared, including (but not limited to) receipt of lecture honoraria, travel expenses coverage, research grants or consultancy fees from a company whose product features in the submitted manuscript or which manufactures a competing product. If no conflict of interest is declared, the following statement should be included on the title page: “Conflict of interest: none declared.”


The Polish Cardiac Society is the owner of all copyright to any work published in Kardiol Pol. Once the manuscript has been accepted for publication, the corresponding author will be asked to send a signed copy of the Copyright Transfer Agreement via post. The article or its parts should not be copied or reproduced in print or in any other format without written permission. To obtain the permission, please contact the journal office:

Review process

All submitted manuscripts are initially reviewed by the editors (initial in­house review takes up to 5 days). Manuscripts considered to be unsuitable for the journal will be rejected without peer review. Manuscripts deemed to have sufficient priority and quality will be forwarded to our external referees for peer review. Manuscripts that do not comply with the Author Guidelines will be returned for revision prior to further evaluation.

Language considerations

Manuscripts should be written in scientific English, using British spelling. Authors who are not native speakers of English are strongly encouraged to use professional language-editing services prior to submission. The journal does not provide translation services. Manuscripts written in poor English will be rejected without peer review.

Plagiarism detection

All manuscripts submitted to Kardiol Pol are checked for plagiarism using Similarity Check, a service enabling the editors to screen published and submitted content for originality by providing access to the iThenticate software. Cases of suspected scientific misconduct, including plagiarism and duplicate publications, are handled according to the Committee on Publication Ethics’ Core Practices, as outlined in this flowchart (for Polish version, click here).


All manuscripts should be submitted via electronic submission system at

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 an automatic e-mail to the user with the username and password. Detailed guidelines are available at the editorial system site.

The author will be asked to provide information about the manuscript and attach files containing the text and any figures and tables. The system will create a PDF from the data submitted, 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, tables, and figure legends should be prepared in a single file. Papers should be submitted as Microsoft Word documents.

Any appendices must be supplied separately and will be published as online-only supplementary data. Please use the word “Supplementary” for any references to appendices in the manuscript, e.g. Supplementary Table S1, Supplementary Appendix S2.

Tables should be included in the manuscript file and must appear at the end of the text on separate sheets (and not embedded in the text). Tables should be created using the Microsoft Word table function.

Figures should be submitted as separate files. They should be in high resolution and in one of the following formats: .tiff, .gif, or .jpg.

For selected article types, the author will be required to enter the abstract and keywords during the submission process. These may be copied and pasted from the manuscript document but must still appear in the manuscript itself.

The authors may provide the full names and e-mail addresses of two preferred referees to whom their manuscript may be sent for peer review. The names should be entered in the “Enter Comments” section during electronic manuscript submission. The authors may also provide the names of non-preferred referees and ask for their exclusion from the peer review process.

On submission, the authors should specify the category for which their manuscript is intended.

For assistance with the electronic submission process and any other enquiries, please contact the editorial office (email:, phone: +48 12 293 41 20).


The following categories of articles are accepted for publication in Kardiol Pol:

Original articles: This category contains innovative interesting studies with appropriate methodology and statistical analysis, ranging from observational to large-scale clinical trials. Papers dealing with trial designs or confirmatory studies are not encouraged. Articles should be limited to 4000 words (excluding abstract but including references as well as table and figure legends), up to eight figures or tables, and up to 50 references. Authors should include one unstructured paragraph on a separate page, outlining the key novel findings with their potential relevance to clinical practice or pathophysiology of cardiovascular diseases, intended for non-specialists in cardiology. The paragraph should come under the heading “What’s New?” following the title page and should have no more than 150 words.

Reviews: This category contains comprehensive reviews that summarise and critically evaluate current research in the field and identify future implications. Review articles will be solicited by the editor-in-chief. However, unsolicited reviews will be considered if they are submitted by experts in the field with a strong track record of publications indexed in PubMed. Presubmission enquiries should be sent to the editorial office (email: They should contain the title of the manuscript, abstract, and a list of publications for each individual author. Reviews should not exceed 5000 words (excluding abstract but including references as well as table and figure legends), 10 figures or tables, and 100 references.

Short communications: This category ranges from case series to preliminary results or subgroup analyses from large-scale clinical trials or observational studies. Short communications do not contain an abstract or keywords and should have no more than 1500 words (including references), one figure or table, and up to 15 references.

Editorials: Papers in this section will comment on the articles published in Kardiol Pol. Editorials will be solicited by the editors. The manuscript should not exceed 1000 words (without references) and 15 references, including a reference to the original article. An abstract and keywords are not required.

Clinical vignettes: This category is intended for brief reports of highly informative cases illustrated with interesting or rare images with detailed legends. Electrocardiograms, echocardiograms, CT scans, X-ray scans, pathology specimens, and other imaging techniques may be described in this category. Due to space considerations, only one figure is allowed for publication in print, any additional figures may be published as online-only supplementary data. Images should contain no more than six panels in total (labelled A, B, C, and so on) and arrows illustrating any abnormal findings should be used where possible to improve clarity. A maximum of six authors are allowed. The articles should be limited to 750 words (including title page, references, and figure legend) and up to five references (if applicable). The submission of videos is encouraged; these will be hosted as supplementary data.

Correspondence: Letters to the Editor must not exceed 750 words and should focus on a specific article published in Kardiol Pol within the preceding three months. No original data may be included. Letters should have no more than five references. The authors of the article cited will be invited to reply within 14 days. If they decline the invitation or do not respond to it, this information will be provided at the end of the manuscript.

Case reports: Case reports are currently not accepted for peer review and publication.



The manuscript should be typed double spaced using 2.5-cm margins all around with right margins unjustified. The Times New Roman font (12 pt) should be used in the whole manuscript, including references, tables, and figure legends, and the Symbol font for Greek or special characters. Abbreviations should be used only if necessary and if they appear at least three times in the manuscript. Please avoid providing the same data in the text and tables.

All original articles should contain the following sections: Title Page, Structured Abstract and Keywords, Introduction, Methods, Results, Discussion, Acknowledgements, References, Appendix, Tables, and Figure legends. References, figures, and tables should be numbered in the order in which they are cited in the text. The abstract (maximum 250 words) should be structured using the following headings: Background, Aims, Methods, Results, and Conclusions, followed by a list of three to five keywords listed in alphabetical order. All abbreviations used in the abstract should be spelled out at first mention in the text. The number of abbreviations should be restricted to a minimum.

Generic names should be used for drugs and instruments whenever possible. The statistical analysis section is required in all original articles and short communications. Power calculation should be presented whenever necessary.

Review articles should contain the following sections: Title Page, Unstructured Abstract and Keywords, the main body of the manuscript divided preferably into sections with subtitles, Acknowledgements, References, Appendix, Tables, and Figure legends. 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.

Short communications should contain the following sections: Title Page, Introduction, Methods, Results and Discussion (combined), Acknowledgements, References, Appendix, Table, and Figure legend.

Title page

The title page should contain: (a) title, (b) name(s) of authors, (c) affiliations of all authors, (d) brief title (up to six words), (e) name of the corresponding author to whom proofs should be sent, with complete postal address, telephone and fax numbers, and e-mail, (f) conflict of interest statement.


Acknowledgements, including any support in the form of grants, equipment, or drugs, should be provided at the end of the text before References.


The authors are responsible for assuring the accuracy of the references in the submitted article. References should be identified in the text by Arabic numerals in square brackets and numbered in the order cited. They should be typed double spaced on sheets separate from the text. The modified Vancouver style should be used. Complete information should be given for each reference, including title of article, abbreviated journal title, and inclusive page numbers (in full range). If a journal is not listed in the PubMed database, its full title should be given. The first three authors should be listed, followed by et al. If a work has four authors, all names should be listed.

A few examples of articles and book chapters in the proper reference style are presented below:

Feldman T, Kar S, Elmariah S, et al. EVEREST II Investigators. Randomised comparison of percutaneous repair and surgery for mitral regurgitation: five-year results of EVEREST II. J Am Coll Cardiol. 2015; 66(25): 2844–2854, doi: 10.1016/j.jacc.2015.10.018.

Marijon E, Mirabel M, Celermajer D, et al. Rheumatic heart disease. Lancet. 2012; 379(9819): 953–964, doi: 10.1016/s0140- 6736(11)61171-9.

Frishman WH, Lerner RG, Klein MD, et al. Antiplatelet and antithrombotic drugs. In: Frishman WH, Sonnenblick EH, Sica DA, eds. Cardiovascular pharmaceutics. New York, NY: McGraw Hill; 2003: 259-299.

Personal communications, manuscript in preparation, and other unpublished data that cannot be found in available databases should not be cited in the reference list but should be mentioned in the text in parentheses; the main author’s name should be provided. For articles published in languages other than English, the English translation of the title should be given, included in square brackets.


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. Abbreviations in figures or legends should be kept to a minimum and spelled out to make figures self-explanatory.

Submitted figures should be in high resolution and in one of the following formats: .tiff, .gif, or .jpg. The resolution required for publication is 600 dpi or more. Arrows illustrating any abnormal findings should be used where possible to improve clarity.

There is no charge for colour figures in Kardiol Pol. However, colour figures may be printed as black-and-white images unless the colour has a significant meaning and should be retained for the proper interpretation of the presented data/findings. The decision is at the discretion of the editors in consultation with the authors. The colour will be retained in the online version of the article and in supplementary materials. The colour of charts and graphs will be adapted to the journal’s style by the production team.


Tables should be typed on separate sheets in the text, with the table number (in Arabic numerals) and title above and any explanatory notes below the table. All abbreviations in tables should be spelled out in a table footnote and arranged in an alphabetical order. If the abbreviations in tables appear in two or more tables, they should be presented below the second table using a phrase: “Abbreviations: see Table 1.” Then additional abbreviations should be presented if they were absent in previous tables. Information about data presentation should be provided in a table footnote rather than in the table, e.g. “Data are presented as number (percentage).”

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 contain data that are additional or complementary and directly relevant to the article content, for example detailed methods, extended data analysis, or additional figures.

Supplementary text and figures must be prepared as required for the full text and submitted at the same time as the main manuscript for peer review. They cannot be altered or replaced after the paper has been accepted for publication. Please indicate clearly the material intended as Supplementary data upon submission. The supplementary data should be referred to in the main manuscript, for example by citing consecutively supplemental tables and figures. The supplementary data will be published without language editing or typesetting.

Units of measure

Laboratory values should be expressed using SI units (e.g. mmol/L). Blood pressure should be given in millimeters of mercury and body temperature in degrees Celsius. If conventional units are used, relevant SI conversion factors should be given in parentheses only at first mention and in table footnotes (e.g. “Conversion factors to SI units are as follows: for glucose [in mg/dL] – 0.0551, …”).


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 authorised representative). The data regarding this issue must be stated in the Methods section of the manuscript. In the case of animal experimentation, authors should also obtain ethical and/or legal approval prior to conducting the research.

Clinical trials

Randomised clinical trials should be reported according to the Consolidated Standards of Reporting Trials (CONSORT) guidelines. All clinical trials, in particular those involving pharmaceuticals, devices, or aspects relating to nutrition, should be registered prospectively in publicly accessible databases (such as and, and the paper should include registration numbers and the name of the register.

Informed patient consent

Authors should observe high standards with respect to publication ethics as set out by the Committee on Publication Ethics (COPE) and International Committee of Medical Journal Editors (ICMJE) recommendations for reporting about patients. Patients have a right to privacy that should not be infringed without prior informed consent.

Identifying information should not be published in written descriptions, photographs, and pedigrees unless the information is essential for scientific purposes and the patient (or parent or guardian) has given written informed consent for publication. Informed consent for this purpose requires the patient be presented in the manuscript.

Identifying details should be omitted if they are not essential, but patient data should never be altered or falsified to attain anonymity.

The editor-in-chief reserves the right to reject papers for which the ethical aspects may raise doubts. For any queries regarding consent, please contact the editorial office.


In order to meet funding requirements, authors are required to name their funding sources, or state if there are none, during the submission process.

Details of all funding sources for the work in question should be given in 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. ‘National Institutes of Health’ not ‘NIH'. 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]’.


If illustrations or tables used in the manuscript come from other papers or published sources, written permission must be obtained from the owner of copyright, usually a publisher or author, and a credit line giving the source should be added to the legend. In the case of short quotations, it is sufficient to add a bibliographic credit. Permission letters for reproduced text or illustrations must accompany the manuscript. The inability to obtain permission should be clearly stated.


PDF proofs will be e-mailed to the corresponding author. The accepted manuscript will be edited by in-house editors to ensure consistency with the journal formatting style and sufficient level of English. It is the responsibility of the corresponding author to check proofs carefully, in particular, to check typesetting, editing, and completeness and correctness of the text, tables, and figures. Major alterations (other than corrections of typesetting errors) instigated by the author at proof stage are not allowed. Proofs should be returned to the publisher within three working days of receipt. Proofs are also read by the editor-in-chief, who reserves the right of final decision. Requests to publish corrections of errors after the manuscript has been published should be sent to the editorial office at

Author statement

Online Submissions

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Registration and login are required to submit items online and to check the status of current submissions.

Submission Preparation Checklist

As part of the submission process, authors are required to check off their submission's compliance with all of the following items, and submissions may be returned to authors that do not adhere to these guidelines.

  1. The submission has not been previously published, nor is it before another journal for consideration (or an explanation has been provided in Comments to the Editor).

  2. The submission file is in OpenOffice, Microsoft Word or RTF document file format.

  3. The text is written using font size 12 and double-space between the lines; employs italics, rather than underlining (except with URL addresses); all illustrations, figures, and tables are  attached in separate file(s). Figures should be submitted in separate files.

  4. The text adheres to the stylistic and bibliographic requirements outlined in the Author Guidelines, which is found in About the Journal.

  5. The author statement has been signed by all author(s) and is ready to be downloaded.

Copyright Notice

All articles published by Kardiologia Polska become a property of the Polish Cardiac Society and the Editor. Reprints of both whole articles and extracts, as well as translations to other languages can be produced only after obtaining permission from the Editor.

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