CJ

Circulation Journal

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.
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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.
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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.
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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.
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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
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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.
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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.
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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.
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Recent Publications

Nationwide Evolution of Durable Left Ventricular Assist Device Outcomes Following Introduction of the HeartMate 3 and Destination Therapy in Japan　― The Third Official Report From J-MACS ―

Teruhiko Imamura, Koichiro Kinugawa, Takashi Nishimura, Koichi Toda, Yoshikatsu Saiki, Hiroshi Niinami, Shinichi Nunoda, Goro Matsumiya, Hirokuni Arai, Masanobu Yanase, Norihide Fukushima, Takeshi Nakatani, Akira Shiose, Ikuko Shibasaki, Yasushi Sakata, Masaru Hatano, Minoru Ono

10.1253/circj.cj-26-0575
View Publication

Phenotyping Heart Failure With Preserved Ejection Fraction in Japan　― Position Paper on Current Evidence and Future Directions ―

Yasushi Sakata, Yuki Matsuoka, Kotaro Nochioka, Atsushi Kyodo, Shun Kohsaka, Masaru Obokata, Toshiyuki Nagai, Toshihisa Anzai, Tomohito Ohtani, Yoshio Yasumura, Katsuki Okada, Yohei Sotomi, Shungo Hikoso

10.1253/circj.cj-26-0356
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Prognostic Impact of Left Ventricular Apical Aneurysm Identified by Echocardiography in Hypertrophic Cardiomyopathy　― A Multicenter Retrospective Study in Japan ―

Junya Komatsu, Naoki Arima, Yuri Ochi, Toru Kubo, Yu-ki Nishimura, Hayato Hosoda, Ryu-ichiro Imai, Yoko Nakaoka, Shinji Mito, Shu-ichi Seki, Sho-ichi Kubokawa, Hiroaki Kitaoka, Kazuya Kawai, Naohisa Hamashige, Yoshinori L. Doi

10.1253/circj.cj-26-0311
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Risk Stratification for Pericardial Effusion After Leadless Pacemaker Implantation　― Multicenter Study ―

Yuya Komai, Hitoshi Minamiguchi, Masayuki Ishimura, Yuichiro Sakamoto, Masahiro Nakano, Takatsugu Kajiyama, Miyo Nakano, Toshinori Chiba, Satoko Ryuzaki, Yukiko Takanashi, Yusei Nishikawa, Takashi Kanda, Mikiko Matsumura, Naoki Mori, Yuma Hamanaka, Takashige Sakio, Yuki Shibuya, Daisuke Yoshimoto, Yuko Uemura, Shoko Narumi, Yoshio Kobayashi, Yusuke Kondo

10.1253/circj.cj-25-1061
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In-Hospital Guideline-Directed Medical Therapy Intensification and Long-Term Outcomes in Patients Hospitalized for Heart Failure in the Current Clinical Paradigm　― Insights From the QHEART-R Study ―

Toru Hashimoto, Ryuichi Matsukawa, Shouji Matsushima, Kayo Misumi, Takeo Fujino, Keisuke Shinohara, Masaki Fujiwara, Shintaro Umemoto, Shun Furusawa, Akihito Ishikita, Kosei Ishimaru, Hiroshi Kisanuki, Masahiro Tokumoto, Tomoaki Yoshitake, Kei Ikuta, Gentaro Taniguchi, Kohtaro Abe

10.1253/circj.cj-26-0697
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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