The Official Journal of EuroPCR and the European Association of Percutaneous Coronary Interventions (EAPCI)

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Article Categories

When sending either a new manuscript or a pre-submission enquiry to EIJ, authors must identify the category type of their submission as described below.

All word count limits are intended for the text from the introduction to the conclusion, and they exclude abstract, figure legends, and table notes. For any text exceeding the words limit, upload of supplementary material is permitted. For some categories, a Central Illustration and/or a panel named “Impact on daily practice” is required.

EuroIntervention publishes:


Clinical Research: This type of article includes original randomised or large observational studies (preferably case-controlled) based on cohorts of subjects or patients. The Editors will assign higher priority to articles of high methodological quality that address original questions with direct practical implications. This includes subgroup analyses from large-scale randomised clinical trials if they are pre-specified. Conversely, they will assign lower priority to observational studies that are not case-controlled and to post hoc subgroup analyses from prior studies that lack novelty and do not convey significant additional information. Case studies and reports are not acceptable in this category. EIJ advises authors to follow the guidelines for their study type available on the website Equator Network. All clinical trials should follow the CONSORT guidelines and such papers must be accompanied by a CONSORT table indicating compliance with these reporting standards and a statement on ethical approval. All trials should be registered prospectively in www.clinicaltrials.gov and such papers should include the registration number. Reporting of observational studies should follow the STROBE guidelines.

Translational Research: This type of article includes high-quality experimental studies (e.g., bench testing or conducted in animals, ex vivo or in vivo) with results that have direct clinical translation or implication for future research. All animal studies should follow the ARRIVE guidelines.

Meta-Analysis: This type of article includes meta-analyses of randomised clinical trials (with observational data included only if statistically adjusted) that adhere to international standards. The Editors will assign higher priority to timely individual patient data meta-analyses and meta-analyses that address meaningful and original clinical questions, summarise high-quality data and apply a number of appropriate sensitivity analyses to explore sources of heterogeneity. Submission of duplicate or overlapping meta-analyses is discouraged and, when previous meta-analyses on the topic exist, differences and improvements need to be listed in the cover letter and in the text. Submission of meta-analyses based on small-scale studies and/or low-quality data is discouraged. Submission of the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) checklist (http://www.prisma-statement.org) is required as supplementary material. Registration in the PROSPERO database is encouraged and represents a criterion of priority. Extensions of PRISMA recommendations for network (PRISMA-NMA) and individual patient data meta-analyses (PRISMA-IPD) must be followed when these types of meta-analysis are conducted. Guidelines for Meta-Analyses and Systematic Reviews of Observational Studies (MOOSE) must be followed in meta-analyses of observational studies.

Expert Consensus: This type of article includes guidance documents or position statements representing the output of established international organisations on topics of broad contemporary interest. The Editors will assign higher priority to timely documents that inform clinical practice and represent the consensus of multiple international scientific societies. Pre-submission enquiry is strongly recommended before submission.

State-of-the-Art-Review: This type of article includes evidence-based, authoritative reviews on interventional topics, intended for a general audience. This kind of submission must address the clinical problem, the evidence, the areas of uncertainty, the relevant guidelines from professional societies and provide expert conclusions and recommendations for practice. The Editors will assign higher priority to articles of relevant and contemporary interest, with high-quality display materials. These articles are usually by invitation, but proposals are admitted in the form of pre-submission enquiries. The proposal will be discussed by the Editors and, if it is considered acceptable, a formal invitation will follow. All state-of-the-art papers are subject to external peer review.

Trial Design: This type of article includes study designs complementing the publication of large-scale randomised trials registered in clinicaltrials.gov or similar online databases. Study protocols of small-scale and/or translational or pilot studies are not acceptable in this category.

Trial design: This category type must be submitted along with the correct CONSORT table.

Research Correspondence: It may occur that authors of full length original clinical or translational research papers are asked to reshape their article in the form of a Research Correspondence.

Editorial: This type of article includes solicited commentaries of articles published in the Journal. The Editors encourage a critical appraisal of the commented articles and perspectives on directions for the field. Invited authors will receive specific instructions and timelines.

Viewpoint: This type of article includes authoritative perspectives on interventional topics in a brief, accessible style. The Editors will assign higher priority to articles of relevant and contemporary interest. These articles are usually by invitation, but proposals are admitted in the form of pre-submission enquiries. The proposal will be discussed by the Editors and, if it is considered acceptable, a formal invitation will follow. All viewpoints are subject to external peer review.

Interventional Flashlight: The goal of this type of article is to present a memorable finding in interventional cardiology, together with an exceptional, high-quality image and description. Although often presented within the context of a case, the image is not intended to be a vehicle for case reports. The Editors will evaluate this striking and illustrative clinical image before the review process. They will decide if the manuscript should be published as an Interventional flashlight or will propose publication on the PCRonline website. Only submissions accepted as Interventional flashlights will be published in EIJ, allocated a DOI and be submitted for PubMed listing. Submissions selected to be on the PCRonline website will not be allocated a DOI and will not be indexed on PubMed. If the authors exceed the word count, the Editors will not consider the manuscript for peer review and the manuscript will be returned unread. Authors are encouraged to submit additional moving images, which will appear online.

Letter to the Editor and Replies: This type of article includes a comment on a specific manuscript that has appeared in EIJ (>4 weeks). If the letter is accepted for publication, a reply from the authors of the original paper will be sought and the letter will be published along with the reply.