Overview
Submission Instructions
Recent Publications
Frequently Asked Questions
Research Topics
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CJ
Circulation Journal is the English-language official journal of the Japanese Circulation Society, established in 1935 and covering advanced research in all areas of cardiovascular medicine. The journal is peer reviewed, open access, indexed in Scopus and PubMed, and publishes original papers, review articles, and guideline content for the cardiovascular field.
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Subject
Cardiac & Cardiovascular Systems
Impact Factor
3.7
Quartile
Q1
Open Access Type
Open
ISSN
1346-9843
eISSN
1347-4820
Invitation Only
No
Submission Instructions
Circulation Journal accepts the following article types. Click on an article type to view submission instructions.
Clinical Investigation
Cover Letter
If data have been presented previously as an oral presentation slide, poster, printed abstract at a scientific meeting, or abstract on the web, this must be referred to in the cover letter.
Abstract
An abstract is required. Abstract must not exceed 220 words. Structured. Background, Method and Results, and Conclusions.
Manuscript
Total word count must not exceed 6000 words. The manuscript must include a title page, text, acknowledgments, a Data Availability section, references, and legends for tables and/or figures. 3 to 5 keywords are required, conflict of interest information must be included in the Disclosures section on the title page, and AI-assisted technology use must be disclosed in the online submission system and in the Acknowledgments section if used.
References
Vancouver. References must be numbered consecutively in the order they appear in the text and listed in the same numerical order at the end of the article.
Figures & Tables
The total number of tables and figures must not exceed 8. Each figure and each table must be uploaded as a separate file. Figures and tables require legends, supplementary files are limited to 3, and reproduced figures or tables must have reuse permission stated in the legend.
Experimental Investigation
Cover Letter
A cover letter is required. If data have been presented previously as an oral presentation, poster, printed abstract, or web abstract, this must be referred to in the cover letter.
Abstract
An abstract is required. Abstract must not exceed 220 words. The abstract must be structured. The abstract must use the headings Background, Method and Results, and Conclusions.
Manuscript
Total word count must not exceed 6000 words. The manuscript must include a title page, text, acknowledgments, a Data Availability section, references, and legends for tables and/or figures. The manuscript must include 3 to 5 keywords, and AI-assisted technology must be disclosed in the submission system and in the Acknowledgments section if used.
References
Vancouver style. References must be numbered consecutively in the order they appear in the text and listed in the same numerical order at the end of the article.
Figures & Tables
The total number of tables and figures must not exceed 8, and supplementary files must not exceed 3. Each figure and each table must be uploaded as a separate file. Supplementary files must be identified as Supplementary Figures/Tables at the top of the manuscript.
Review Article
Cover Letter
A cover letter is required. If data were presented previously as an oral presentation slide, poster, printed abstract, or web abstract, this must be referred to in the cover letter.
Abstract
An abstract is optional. If provided, the abstract must not exceed 220 words. The abstract must be unstructured.
Manuscript
The manuscript must not exceed 6000 words. The manuscript must include a title page, text, acknowledgments, a Data Availability section, references, and legends for tables and/or figures, and authors must provide 3 to 5 keywords and 1 to 5 categories.
References
References must be numbered in Vancouver style. References must be numbered consecutively as they appear in the text, listed in the same numerical order at the end of the article, and use Index Medicus journal title abbreviations.
Figures & Tables
The total number of tables and figures must not exceed 8, and supplementary files must not exceed 3. Each figure and each table must be uploaded as a separate file, and supplementary files are uploaded separately. Figures are highly recommended to be in full color, and figure and table legends must also appear in the main document.
Rapid Communication
Cover Letter
If data have been presented previously as an oral presentation slide, poster, printed abstract at a scientific meeting, or web abstract, this must be referred to in the cover letter.
Abstract
required Abstract must be within 100 words.
Manuscript
The main document must include a title page, abstract, author information, keywords, text, acknowledgments, a Data Availability section, references, and table and/or figure legends. The manuscript must include 3 to 5 keywords, 1 to 5 categories, conflict of interest disclosures, and AI-use disclosure if AI-assisted technology was used.
References
References must be numbered consecutively in the order cited, listed in the same numerical order at the end of the article, and use Index Medicus abbreviations for journal titles.
Figures & Tables
Supplementary files are limited to 3 files per manuscript. Each figure and each table must be uploaded as a separate file, and supplementary files must be uploaded separately. Figures and tables should have legends, reproduced figures or tables require reuse permission stated in the legend, and figures are highly recommended to be in full color.
Letter To The Editor
Cover Letter
null
Abstract
An abstract is not required.
Manuscript
Total word count must not exceed 400 words. null The manuscript must concern a Circulation Journal article published within the past 180 days and list no more than 5 authors.
References
No more than 4 references may be included. null References must be numbered consecutively in the order they appear in the text and listed in the same numerical order at the end of the article.
Figures & Tables
The manuscript may include no more than 1 table or figure. null null
Research Letter
Cover Letter
Required. If data were presented previously as an oral presentation slide, poster, printed abstract, or web abstract, that must be referred to in the cover letter.
Abstract
Required. Must not exceed 100 words. Structured. Background, Method and Results, and Conclusions.
Manuscript
Total word count must not exceed 1000 words. The manuscript must include a title page, text, acknowledgments, a Data Availability section, references, and legends for tables and/or figures. 3 to 5 keywords are required, conflict of interest information must be included in Disclosures on the title page, and AI-assisted technology disclosures are required if AI was used.
References
References must be numbered consecutively in the order they appear in the text and listed in the same numerical order at the end of the article.
Figures & Tables
No more than 1 table or figure in total. Figures and tables must be uploaded separately rather than embedded, and each figure and each table must be uploaded as a separate file. Supplementary files are limited to 5 files, and reproduced figures or tables require reuse permission stated in the legend.
Guideline
Cover Letter
If data were presented previously as an oral presentation, poster, printed abstract, or web abstract, that information must be mentioned in the cover letter.
Abstract
required
Manuscript
The main document must include a title page, title, author information, keywords, text, acknowledgments, a Data Availability section, references, and legends for tables and/or figures, and AI-assisted technology used in writing must be disclosed in the main document acknowledgments.
References
References must be numbered consecutively in the order they appear in the text, listed in the same numerical order at the end of the article, and formatted with published sources only; journal titles must use Index Medicus abbreviations, all authors should be listed when there are six or fewer, and only the first six authors followed by et al. when there are seven or more.
Figures & Tables
Figures and tables must be uploaded as separate files rather than combined in the main document. Each figure and table must have a separate legend, reproduced figures or tables require reuse permission stated in the legend, and supplementary files are limited to three files per manuscript.
Statement
Cover Letter
null If data have been presented as an oral presentation slide, poster, printed abstract at a scientific meeting, or abstract on the web, this must be referred to in the cover letter.
Abstract
The abstract is required.
Manuscript
Total word count includes all words in the manuscript files except text in tables and figures, and figure and table legends are included in the total word count. The main document must include a title page, text, acknowledgments, a Data Availability section, references, and legends for tables and/or figures. The main document must include the title, abstract, author information, and keywords, and if AI-assisted technology is used its use must be disclosed in the submission system and in the Acknowledgments section.
References
Numbered Vancouver style with journal titles abbreviated in Index Medicus style. References must be numbered consecutively in the order they appear in the text and listed in the same numerical order at the end of the article; when a cited work has 6 or fewer authors, all authors should be listed, and when it has 7 or more authors, the first 6 authors should be listed followed by et al.
Figures & Tables
Supplementary files are limited to 3 files per manuscript. Each figure and each table must be uploaded as a separate file, and figures and tables legends pasted in the upload fields must also be described in the main document. Figures are highly recommended to be in full color, and letters and symbols in figures should be clear and large enough to remain legible after reduction to one-column width.
Recent Publications
Pulmonary Vein Stenosis After Radiofrequency Ablation for Atrial Fibrillation ― A Computed Tomography-Based Analysis of Incidence and Risk Factors ―
Yuka Oda, Akihiko Nogami, Ryuichi Usui, Kikuya Uno
10.1253/circj.cj-26-0273
View Publication
Assessing the Value of the Cardiac Intensive Care Unit Remains Difficult
Takahiro Nakashima
10.1253/circj.cj-26-0695
View Publication
Glucose Fluctuations and Epicardial Adipose Tissue ― A New Paradigm for Diabetic Myocardial Damage ―
Takeshi Soeki
10.1253/circj.cj-26-0685
View Publication
Impact of the Updated Asian Working Group for Sarcopenia 2025 Criteria on the Prevalence and Clinical Characteristics of Sarcopenic Obesity in Older Patients With Heart Failure
Yuta Ozaki, Yusuke Uemura, Shigefumi Honda, Toru Kondo, Shingo Kazama, Kenji Takemoto, Masato Watarai
10.1253/circj.cj-26-0440
View Publication
Lesion Morphological Characteristics and Prognosis of Non-ST-Elevation Myocardial Infarction Patients With Different Types of Culprit Artery
Shuangtong Shao, Wentao Wang, Boling Yi, Minghao Liu, Chen Zhao, Ming Zeng, Huahui Ren, Qianhui Sun, Zhongrui Guo, Man Li, Sining Hu, Bo Yu, Gary S. Mintz, Haibo Jia
10.1253/circj.cj-26-0096
View Publication
Research Topics
Cardiovascular Function and Risk Factors
Cardiac Imaging and Diagnostics
Atrial Fibrillation Management and Outcomes
Coronary Interventions and Diagnostics
Cardiac electrophysiology and arrhythmias
Cardiac Arrhythmias and Treatments
Cardiac Valve Diseases and Treatments
Acute Myocardial Infarction Research
Heart Failure Treatment and Management
Cardiac pacing and defibrillation studies
Cardiac Structural Anomalies and Repair
Peripheral Artery Disease Management
Antiplatelet Therapy and Cardiovascular Diseases
Congenital Heart Disease Studies
Mechanical Circulatory Support Devices
Aortic Disease and Treatment Approaches
Lipoproteins and Cardiovascular Health
Venous Thromboembolism Diagnosis and Management
Cerebrovascular and Carotid Artery Diseases
Cardiovascular Health and Disease Prevention
Pulmonary Hypertension Research and Treatments
Cardiomyopathy and Myosin Studies
Diabetes, Cardiovascular Risks, and Lipoproteins
Cardiac and Coronary Surgery Techniques
Cardiovascular Disease and Adiposity
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