ISSN versión electrónica
2708-7212

INSTRUCTIONS TO AUTHORS

Instructions for authors I

ARTICLE SUBMISSION                                   

The submission of the article is done electronically by entering the OJS page of the journal , then click on SUBMIT AN ARTICLE and then click on login or register.

We accept articles in Spanish and English, whose subject matter is related to cardiovascular diseases, cardiovascular surgery and endovascular surgery.

The METADATA record must be properly filled out, which includes:

1. Title of the article in Spanish and English
2. Abstract in Spanish and English
3. Name of all authors including their data (e-mail, institutional affiliation, ORCID, country).
4. Keywords in English and Spanish where each term will be separated by the "enter" key. A minimum of three and a maximum of five should be proposed. For the keywords in Spanish the "descriptors in health sciences" - DeCS of BIREME (http://pesquisa.bvsalud.org/portal/decs-locator/?lang=es) and in English MeSH of the NLM (https://meshb.nlm.nih.gov/search) should be used.

MANDATORY DOCUMENTATION

The corresponding author must send through the OJS system:

1. Letter addressed to the Editor-in-Chief of the Journal signed by the corresponding author, accepting the publication conditions and requesting the evaluation of the article for publication.
2. First page, as detailed in the General Aspects section.
3. Manuscript written according to the structure indicated in these instructions with or without tables or figures as appropriate. 
4. Include in the manuscript a paragraph on ethical considerations and attach the approval of an ethics committee, if any.
5. Affidavit duly completed and signed by the corresponding author.
6. Attach the conflict of interest declaration document. Download at the following link: www.icmje.org/conflicts-of-interest/.
7. In the case of publication of clinical trials, the author must also attach the proof of registration of the clinical trial in the competent entity (in Peru in the Peruvian Registry of Clinical Trials of the National Institute of Health) and place the identification number of the trial.

GENERAL ASPECTS

1. FIRST PAGE.It must include:

Title: in Spanish and English (should be short and clear, with a maximum length of 15 words).
Short title: in English (with a maximum length of 5 words).
Identification of authors: with the following information for each author: name and surname (as they wish to appear in the journal), institutional affiliation (including city and country), profession and highest academic degree. In addition, e-mail addresses and ORCID code of each author.
Correspondence: indicate the address, telephone and e-mail of the corresponding author, who will be the contact during the editorial process and after the publication of the article. Ensure that the e-mail address is marked with an asterisk in superscript in the name of the corresponding author.
Source of financing: indicate whether the work was self-financed or financed by an institution.
Declaration of potential conflicts of interest. Any relationship, condition, or circumstance that may affect the interpretation of the article should be declared; this may be economic or institutional (consultancies, scholarships, travel payments, per diems, etc.). 
Authors' contributions: indicate participation of each autor in the article, following the CrEDIT author recomendations. (see also here)
Optionally, acknowledgements, specifying the reason for the acknowledgment. 

If the research has been presented at a scientific event (e.g., scientific congresses, scientific conferences) or is part of a thesis, the authors should include the corresponding citation under the title.

2. MANUSCRIPT

Corresponds to the body of the complete article, anonymous (do not include data that allow identification of the authors, except for the title). The submission format should be a Word file, A4 size, 2.5 cm margin, in 11 point Arial font, double spaced. The maximum length according to the type of article is indicated in the article structure section.

3. FIGURES AND TABLES

Tables can be sent at the end of the manuscript (with their respective numbering). Figures used should be sent in individual files and in the editable format that was created for later editing for diagramming purposes. In both cases, calls to tables and figures should be placed within the content of the manuscript.

Figures: include statistical graphs, diagrams, maps, photographs or graphs. TIFF or JPG formats are accepted at a resolution greater than 600 dpi or 300 pixels, numbered correlatively. Statistical graphs and flowcharts can be presented in Excel format or in the statistical packages used. The legends of the microphotographs should indicate the magnification and method of coloring. Maps should have a scale. In the figures where the faces of the patients are shown, a dark band should be placed to cover the eyes so as not to allow the identification of the patient, and the authors should attach the written authorization of the patient or his/her legal representative giving his/her consent for the publication of the photos. If a previously published figure is included, the source of origin must be indicated and the written permission of the copyright holder must be submitted.

Tables: they must contain the necessary information both in the content and in the title in order to be interpreted without resorting to the text. They must be arranged in Arabic numerals and in Word or Excel format. Only one horizontal line will be accepted, which will be used to separate the heading from the body of the table; in no case should vertical lines be included. The footers of the tables must have the meaning of all abbreviations and symbols used.

In the heading of each row:

• If there is numerical data indicate the units of measurement.

In the body of the table:

• No cell should be left blank.
• If the data is nothing, it is indicated with 0.
• If there is no data, hyphens or abbreviations should be used (ND: not available or NA: not applicable).
• Verify that the data in the table matches internally.
• Verify that data in the table agree with the text.

Table footnotes:

•  
• Statistical evaluations.
• Sources of information.
• Use as call letters or signs.

4. REFERENCES

They must be referenced in the text as follows: if it is a citation: (1) or if more than one: (5-8), in superscript, in parentheses and ordered correlatively according to the place of appearance. The Vancouver format should be used according to ICMJE standards (http://www.nlm.nih.gov/bsd/uniform_requirements.html). If there are more than six authors, the first six should be placed followed by et al. The DOI should also be included at the end of the reference, if any.

STYLE CONSIDERATIONS

The journal uses the International System of Units. To separate decimals, commas should be used for the Spanish version and periods for English. Scientific names of species should be placed in italics. When abbreviations are used, the meaning should be placed in parentheses at the time of the first mention. Percentages should include only one decimal place (30.1%), for association measures such as OR and their confidence intervals two decimal places are recommended (OR: 2.15; 95% CI: 1.10-3.41), for p values three decimal places are recommended (p=0.009). When referring to several authors in the body of the article, indicate the surname of the first author followed by et al.

ETHICAL CONSIDERATIONS

Review publication ethics policies here

Instructions for authors II

SPECIFIC INSTRUCTIONS BY SECTION

TYPES OF ARTICLES BY SECTION

EDITORIAL

The choice of content is up to the Editor-in-Chief or someone he/she designates. Short essay containing information on important and topical issues related to articles or topics published in the scientific community, within the interest of the editorial policy. 

ORIGINAL ARTICLES

They contain results of scientific research within the editorial line of the Journal. Authors may decide how to submit their research (original articles or short original articles); however, the journal may suggest format changes in the manuscript review process, taking into consideration the objectives, design and results of the research conducted.

They must comply with the following structure: abstract, key words, introduction, materials and methods, results, discussion and bibliographical references. 

• Abstract. Written in Spanish and English. For Original Articles, it should be structured in: objectives, materials and methods, results and conclusions. Key words should be included at the end of each abstract. A minimum of three and a maximum of five should be proposed, in Spanish and English. The "descriptors in health sciences" - DeCS of BIREME (http://pesquisa.bvsalud.org/portal/decs-locator/?lang=es) and in English MeSH of the NLM (https://meshb.nlm.nih.gov/search) should be used.
• Introduction. It should be brief (less than 20% of the total length of the article) and include information on the current state of the health problem, background, justification and objectives of the study. 
• Materials and methods. Describe the methodology used to allow the reproduction of the study and the evaluation of the quality of the information. It is recommended to review the international consensus for the presentation of articles according to study designs, for example, STROBE for observational studies, STARD for diagnostic tests, CONSORT for clinical trials, PRISMA for systematic reviews, SRQR for qualitative studies, CHEERS for economic evaluations, which can be found at equator-network.org

• The following subheadings may be used:

• Study design. Including the type of study, date and location of the study.
• Study population, includes its relevant characteristics, selection criteria, sample size or power calculation as appropriate, sample design and enrollment.
• Variables, describe the main study variables (dependent and independent) and specify their definition and form of measurement, indicating the validity of the method used with the corresponding citations.
• Procedures or interventions, describe the details of the interventions performed.
• Ethical aspects, describe the approval by ethics committees, permissions obtained, informed consent/assent, confidentiality of data, return of results if applicable.
• Data analysis, describes the treatment of the data, from the quality control of the database, statistical program, p value used as significant, the tests used for the crossing of which variables, information on the fulfillment of assumptions and how the models for multiple variables were developed if used.

• Results. Clearly presented, without including opinions or interpretations, except for those of a statistical nature. Tables and texts should have a call in the text, without repeating information. They may include subtitles to facilitate their presentation.
• Discusion. Interpretation and analysis of the main results, which respond to the objectives of the study, compare them with other studies, present differences or similarities, and explain the reason for them. It presents the limitations (biases) explaining why they do not invalidate the findings. It details the clinical implications of its findings, ending with conclusions (in response to the objectives) and recommendations.
• Referencesthat were cited in the article.

SHORT ORIGINALS 

These are research products that due to their objectives, design and results can be published in an abbreviated form; they are mainly case series, non-probabilistic descriptive studies or small retrospective studies. They follow the same structure of presentation of an original article, with the difference that the abstract should not be structured.

CASE REPORTS

Contains information on one or more cases that meet one of the following criteria: rare disease, unusual presentation of a common disease, unknown adverse events, rare disease associations, first reported cases in the area casuistry, new interventions or new drug uses. They should have a clear message or lesson for the scientific community. For their writing, it is recommended to follow the CARE guidelines (https://www.care-statement.org/). They have the following structure: unstructured abstract (English and Spanish version), key words (English and Spanish), introduction, case report, discussion and bibliographic references. No information that could identify the patient should be included; in the case of including photographs where it is necessary to include the patient's face, the patient's explicit authorization must be obtained. Figures and photographs must be of high quality and presented in jpg or tiff file, not included in the Word file.

Reports containing cardiovascular images are also considered, for which high quality images must be available. In this case its structure is: unstructured abstract (Spanish and English version, maximum 100 words), keywords (Spanish and English, maximum three), description of the images (maximum 1000 words) and bibliographic references (maximum 5).

REVIEW ARTICLES

These are essays, opinions, systematizations or experiences based on evidence that are of interest to the professional practice of cardiovascular medicine or medical education. They follow the following structure: unstructured abstract of up to 250 words, keywords, introduction, content (structured as the authors see fit) and bibliographic references.

SPECIAL ARTICLES

It will include articles of experiences, essays, systematizations, clinical practice guidelines, and others within the scope of the journal. It follows the following structure: unstructured abstract of up to 150 words, keywords, content (structured according to the authors' convenience) and bibliographical references.

LETTERS TO THE EDITOR

They can be of two types: scientific type letters, which are contributions in specific scientific research that contribute to the scientific community; and commentary type letters, which are directed to contribute or discuss different aspects of the articles published in the last two issues of our Journal.

If the content of the letter is related to ethical faults in the publication of an article published in the journal, the alluded authors have the right to reply in the same or subsequent issue of the journal, in exceptional cases it could duplicate the publication of what was expressed. The editorial structure includes: title, text of the letter, bibliographical references.

Peer review process

Peer review seeks to guarantee the quality of the articles that are published. Research articles are evaluated by two or more reviewers in double-blinded mode (since January 2021, and following the communication practices of open science, the opening to the peer evaluation process is allowed, not being a requirement that it be a blind or double-blind evaluation), who are selected according to their expertise on the subject, proven through their publications and academic degrees; Likewise, there is the support of expert reviewers in biostatistics and epidemiology who will focus on the methodological aspects of the studies. In all cases, the participation of the reviewers is ad honorem. Editorials and letters to the editor are evaluated only by the Editorial Team, except in cases where, by agreement, the participation of an external reviewer is required.

The reviewer rating can be: a) publication is recommended without modifications; b) publishable with minor observations, which are recommendations for improving the article; c) with major observations, whose response is essential before accepting the publication of the article; d) with invalidating observations, recommending not to publish the article. For research articles, reviewers may suggest that the article be published as a short original or letter to the editor.

Based on the comments of the reviewers, the Editorial Team will decide whether to publish the article, reject it, or send comments to the author.

Editorial Team members who are authors of manuscripts must comply with the same requirements specified in the Instructions for Authors. These manuscripts will follow the editorial process without any participation of the member involved, refraining from participating in the discussions of the Editorial Committee sessions where the article is reviewed or decided upon. This member will not have access to any information about the editorial process of the article, nor will know the assigned reviewers. In addition, members of the Editorial Team will declare their potential conflicts of interest with respect to such articles so that the rest of the committee can evaluate whether or not the article should be considered for publication.