Instructions for Authors
For general guidelines on BMJ's policies and on preparing your submission, please follow the links below.
Patient consent forms
Peer review process
Online First process
Heart is an international peer review journal that keeps cardiologists up to date with advances in the diagnosis and treatment of cardiovascular disease. Topics cover the breadth of cardiovascular disease with special emphasis on valve disease, congenital heart disease, and inherited cardiovascular conditions as well as coronary disease, heart failure, arrhythmias, imaging, epidemiology, global health, genomics and translational science. Each issue contains original scientific articles with accompanying editorials, reviews of recent advances in clinical and translational cardiovascular science; an extensive continuing professional education section (Education in Heart); the Image Challenge series of image-based cases with multiple choice questions; and Journal Scan summarizing important papers published in other journals
BMJ and the British Cardiovascular Society (BCS) have a facility for transferring manuscripts among all three of their cardiology journals. Authors submitting to the flagship journal Heart will, where appropriate, be given the option for their manuscript to be considered by Open Heart and Heart Asia if Heart is unable to accept their manuscript for publication. Authors can choose either of these titles as an ‘alternate journal’ when submitting to Heart.
Once authors agree for their manuscript to be transferred to another BMJ journal, there will be no need for re-submission and any reviewer comments will also be shared, resulting in a reduced time to decision.
Authors can choose to have their article published Open Access for a fee of £1950 (plus applicable VAT).
Colour figure charges
During submission you will be asked whether or not you agree to pay for the colour print publication of your colour images. This service is available to any author publishing within this journal for a fee of £250 per article. Authors can elect to publish online in colour and black and white in print, in which case the appropriate selection should be made upon submission.
Article types and word counts
The word count excludes the title page, abstract, tables, acknowledgements and contributions and the references. Supplementary material (e.g. additional tables, figures and text files) can be published online only and is not included in the word count. If you are not a native English speaker there is a professional editing service available.
Authors submitting papers reporting original research data (for example, clinical research, meta-analyses, translational science) should not exceed a limit of 3000 words, eight figures and/or tables, and 30 references. Articles that significantly exceed this word limit may be returned for revision before peer review. Additional references may be published online only if necessary.
Before submitting your manuscript online, please have the following ready:
- Manuscript files in the appropriate format, including a cover letter and title page
- Details of any co-authors (name, institution, city, country and email address)
- Details of two preferred reviewers (name and email address)
- Word count, number of figures, number of tables, number of references and number of supplementary files for online only publication
- Competing interest statement
- Contributorship statement
- Research reporting checklist (or a reason why one has not been provided)
- Answers to the key message questions (see below)
Additional/optional information that may be required or can be supplied
- Name of the research funder(s)
- ORCID number(s) for all authors
- Names of any collaborators
- Details of non-preferred reviewers (name and email address)
- Clinical trial registration number
- Patient consent form
- Details of ethical approval
- Data sharing statement
- Permission from the copyright holder to re-use previously published material
- Title of an alternate BMJ journal to which your manuscript can be automatically submitted if rejected from your first choice journal
When you choose a title bear in mind that others will have to find your work using bibliographic searches. Check that it represents the content of the paper and is not misleading. Maximum of 50 words.
Authors of original scientific papers must supply a structured abstract of no more than 250 words under the following sub-headings:
- Methods – include study design, setting, patients, interventions and main outcome measures.
- Results - give numerical data rather than vague statements that drug x produced a better response than drug y. Favour confidence intervals over p values, and give the numerical data on which any p value is based.
- Conclusions - do not make any claims that are not supported by data in the paper.
You will be asked to choose the most relevant topic area for your article from the list of sections published in Heart.
Supply up to 5 keywords from the list provided.
Authors are encouraged to use the relevant research reporting guidelines for the study type provided by the EQUATOR Network.
The key reporting guidelines are:
- Randomised controlled trials (RCTs): CONSORT guidelines
- Systematic reviews and meta-analyses: PRISMA guidelines and MOOSE guidelines
- Observational studies in epidemiology: STROBE guidelines and MOOSE guidelines
- Diagnostic accuracy studies: STARD guidelines
- Quality improvement studies: SQUIRE guidelines
Research checklists should be uploaded during the submission process.
Authors should also complete a summary explaining the significance of their study by providing a short statement answering each of the following key questions:
- What is already known about this subject?
- What does this study add?
- How might this impact on clinical practice?
The above headings must be used. Please add this in the manuscript file following the abstract.
Brief description of the background that led to the study (current results and conclusions should not be included).
Details relevant to the conduct of the study. Wherever possible give numbers of subjects studied (not percentages alone). Statistical methods should be clearly explained at the end of this section.
Undue repetition in text and tables should be avoided. Comment on validity and significance of results is appropriate but broader discussion of their implication is restricted to the next section. Subheadings that aid clarity of presentation within this and the previous section are encouraged.
The nature and findings of the study are placed in context of other relevant published data. Caveats to the study should be discussed. Avoid undue extrapolation from the study topic.
Acknowledgments and affiliations
Individuals with direct involvement in the study but not included in authorship may be acknowledged. The source of financial support and industry affiliations of all those involved must be stated.
Measurements and abbreviations
Restrict the use of abbreviations (apart from conventional units of measurement) to two or three per paper. Spell out
each abbreviation at first mention in the abstract and paper.
All acronyms of trials referred to in a paper should be listed alphabetically and explained in a separate glossary. Measurements must be given in SI units. Blood pressure should be given in mm Hg.
Reviews are balanced accounts of all aspects of a particular subject including the pros and cons of any contentious or uncertain aspect. Although these are usually commissioned, authors are invited to discuss possible topics directly with the Editor-in-Chief. Systematic reviews of topics of current interest are particularly encouraged.
Authors of systematic reviews should follow the PRISMA guidelines and upload their completed research checklist when submitting their manuscript.
Word count: up to 3000 words.
Abstract: up to 250 words.
Tables/illustrations: up to 8.
References: up to 30.
These are commissioned only articles. Original papers should not be submitted under this category.
Word count: up to 1500 words.
Tables/illustrations: up to 2
References: up to 8.
This section is for unusual images that make an educational point. Since the aim of these articles is to stimulate the reader to think about the case, the title should be ambiguous and not give away the final diagnosis immediately, e.g. "Atypical chest pain in a 48 year old woman".
Each image challenge will be presented in two parts. The first part should contain a very brief clinical introduction to a case (maximum 200 words), followed by an image and a board-review format multiple choice question designed to stimulate the reader to think about what the image shows. In addition to cardiovascular imaging, other images, such as an ECG or histology, are appropriate. The legend should not indicate the diagnosis but should simply describe the nature of the image e.g. “3D echocardiographic image of the mitral valve”. The second part (maximum 200 words) will appear separately from the case and should contain the answer. The answer should include a brief description of the key diagnostic features of the image, the outcome, and a teaching point. The answer should explain why the correct answer is correct and why the incorrect answers are not.
The quality of the image must be at least 300dpi and in .tif, .jpeg, .gif or .eps format. Videos for online presentation are also welcomed and should be in .mov, .avi, or .mpeg format.
Word count: up to 400 words.
References: up to 5.
Letters in response to articles published in Heart are welcomed and should be submitted electronically as eLetters via the journal’s website. Contributors should go to the abstract or full text of the article in question. In the right hand column on the article webpage is a section entitled ‘Responses’. Click on ’Submit a response’ and complete the online form.
Letters relating to or responding to previously published items in the journal will be reviewed by the editor and shown to those authors of the original article, where appropriate. The authors will be invited to submit a response.
Heart will publish selected eLetters in the print journal alongside the authors' responses.
Word count: approximately 350 words.
References: up to 4, with reference 1 being the Heart paper to which the letter refers.
Additional material (figures, video clips, references, tables etc.) can be published online as supplementary data for any article type.
The BMJ Publishing Group journals are willing to consider publishing supplements to regular issues. Supplement proposals may be made at the request of:
- The journal editor, an editorial board member or a learned society may wish to organise a meeting, sponsorship may be sought and the proceedings published as a supplement.
- The journal editor, editorial board member or learned society may wish to commission a supplement on a particular theme or topic. Again, sponsorship may be sought.
- The BMJPG itself may have proposals for supplements where sponsorship may be necessary.
- A sponsoring organisation, often a pharmaceutical company or a charitable foundation, that wishes to arrange a meeting, the proceedings of which will be published as a supplement.
In all cases, it is vital that the journal's integrity, independence and academic reputation is not compromised in any way.
When contacting us regarding a potential supplement, please include as much of the information below as possible.
- Journal in which you would like the supplement published
- Title of supplement and/or meeting on which it is based
- Date of meeting on which it is based
- Proposed table of contents with provisional article titles and proposed authors
- An indication of whether authors have agreed to participate
- Sponsor information including any relevant deadlines
- An indication of the expected length of each paper Guest Editor proposals if appropriate
For further information on criteria that must be fulfilled, download the supplements guidelines (PDF).
BMJ is a member of CrossCheck by CrossRef and iThenticate. iThenticate is a plagiarism screening service that verifies the originality of content submitted before publication. iThenticate checks submissions against millions of published research papers, and billions of web content. Authors, researchers and freelancers can also use iThenticate to screen their work before submission by visiting www.ithenticate.com.
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