Journal profile · CARDIAC & CARDIOVASCULAR SYSTEMS
Heart Rhythm O2
ISSN 2666-5018 · Elsevier · United States
Heart Rhythm O2: CAS Zone 3 · Medicine (2025 upgraded edition); impact factor 2.8 (journal website); fully open access; APC about USD 2,370; median 54 days to acceptance (13 articles, last 24 months); 383 articles in 2025; indexed in ESCI and Scopus.
Scope
Aims, scope and focus
Heart Rhythm O2 is published by Elsevier and is in Zone 3 of Medicine in the CAS Journal Ranking (2025 upgraded edition). By OpenAlex counts of its recent articles, its largest topics are Cardiac Arrhythmias and Treatments, Atrial Fibrillation Management and Outcomes and Cardiac pacing and defibrillation studies, together about 57.3% of its articles. Its main subfields are Cardiology and Cardiovascular Medicine. (generated from OpenAlex topic counts and CAS ranking data)
Heart Rhythm O2 is one of two open access publications of the Heart Rhythm Society and a companion Journal to the respected Heart Rhythm. With a focus on cardiac arrhythmias and electrophysiology, Heart Rhythm O2 publishes original clinical and experimental research, review articles, points-of-view, short reports, commentaries, and letters to the editor. All articles are peer reviewed. As an open access journal, Heart Rhythm O2 serves as a major global venue for sharing the latest innovation research and digital health solutions to arrhythmia disorders for electrophysiologists and allied health professionals from around the world.Heart Rhythm O2 has also incorporated content from Cardiovascular Digital Health Journal, a Heart Rhythm Society journal published from July 2020 through June 2024.Case reports, illustrations, and educational vignettes can be submitted to the journal's companion title, Heart Rhythm Case Reports.
From the journal's Aims & Scope
Research area (LetPub): CARDIAC & CARDIOVASCULAR SYSTEMS
Editor-in-chief Jeanne E. PoolePublisher website
Editorial board by country: 1 in mainland China (about 1%); most named United States 91, Australia 9, Canada 8, Germany 4, Netherlands 4 (131 members with a country) Editorial board ↗Publisher website ·
Main research topics OpenAlex counts of recent articles; shares are approximate
- Cardiac Arrhythmias and TreatmentsMedicine19.7%
- Atrial Fibrillation Management and OutcomesMedicine19.5%
- Cardiac pacing and defibrillation studiesMedicine18.1%
- Cardiac electrophysiology and arrhythmiasMedicine11.3%
- ECG Monitoring and AnalysisMedicine4.5%
- Cardiovascular Function and Risk FactorsMedicine3%
- Mechanical Circulatory Support DevicesEngineering2.6%
- Cardiovascular Syncope and Autonomic DisordersMedicine2.2%
Rankings & indexing
CAS ranking and database indexing
CAS Journal Ranking
CAS Journal Ranking, upgraded edition (March 2025)Medicine Zone 3
| Level | Category | Zone |
|---|---|---|
| Major | Medicine | Zone 3 |
| Minor | Cardiac & Cardiovascular Systems | Zone 3 |
Top journal: noReview journal: no
CAS Xinrui Journal Ranking (March 2026)Medicine Zone 3
| Level | Category | Zone |
|---|---|---|
| Major | Medicine | Zone 3 |
| Minor | Cardiac & Cardiovascular Systems | Zone 3 |
Top journal: noReview journal: not marked
CAS Journal Ranking, previous upgraded edition (December 2023)Not covered
Not covered by this edition.
Database indexing
ESCIScopusDOAJLetPub
International journal early-warning lists: not listed in any editionLetPub
Indexing the journal's website claims
PMCPublisher website
As the journal's website lists them, not checked against each database; for Web of Science editions the records above apply.
Editions, and major and minor categories, are shown separately and never merged into one zone; check which edition your institution uses before you submit or report.
Metrics
Impact metrics and publication volume
Impact
- Impact factor (publisher)
- 2.8Publisher website ·
- CiteScore 2026-06
- 3.4LetPub ·
- CiteScore (publisher)
- 3.4Publisher website ·
- SJR 2026-06
- 0.93LetPub ·
- SNIP 2026-06
- 1.08LetPub ·
- h-index
- 31OpenAlex ·
- i10-index
- 177OpenAlex ·
- 2-year mean citedness
- 1.36OpenAlex ·
- Self-citation rate
- 10.7%LetPub ·
- Share of gold OA articles
- 100%LetPub ·
Volume
- Articles per year
- 205LetPub ·
Articles by year OpenAlex count · 1,387 in total · the current year is incomplete
| Year | Articles | Open access | Citations |
|---|---|---|---|
| 2026 | 381 | 381 | 41 |
| 2025 | 383 | 383 | 520 |
| 2024 | 183 | 183 | 730 |
| 2023 | 106 | 106 | 730 |
| 2022 | 154 | 154 | 1,526 |
| 2021 | 115 | 115 | 1,341 |
Sources count differently and were observed at different times, so each source's own value is kept; "publisher" marks figures from the journal's website.
Review & acceptance
Review time and acceptance
Review time from article dates manuscript dates registered with PubMed · to
54 daysMedian, submission to acceptance · P25–P75 50 days – 58 days
- Acceptance to online
- median 10 days (13 articles)
- Submission to online
- median 64 days
- Sample
- 13 articles with submission and acceptance dates (552 in the window); the latest was accepted on
Only articles that were accepted and published are counted, not the time spent on rejected manuscripts, so this usually runs longer than a publisher's "time to first decision".
Other sources
- Average review time (community reports)
- about 17 weeksLetPub ·
- Submission to first decision
- 5 daysPublisher website ·
- First decision after review
- 25 daysPublisher website ·
- Submission to acceptance
- 53 daysPublisher website ·
- Submission to publication (journal-reported)
- about 22 weeksDOAJ ·
- Peer review
- Single anonymous peer reviewDOAJ
Community reports come from authors' own submissions (confidence 0.5) and are not a promise from the journal; for publisher figures, the journal's own definitions apply.
Fees & open access
APC and open-access policy
Fully open accessDOAJ
Every article is open access; authors usually pay an article processing charge (APC).
| Source | APC | Fee waiver | License | Observed |
|---|---|---|---|---|
| DOAJ | USD 2,370 | Yes | CC BY, CC BY-NC-ND | |
| OpenAlex | USD 2,150 / EUR 2,010 / GBP 1,720 / JPY 266,660 | — | — | |
| LetPub | USD 2,150 | Yes | — | |
| Publisher website | USD 2,600 | — | — |
Other charges and waivers (author guidelines)
- Discounts
- 25
The journal's website is authoritative for fees; sources were observed at different times and each keeps its own value, without averaging.
Submission
Article types and submission policies (journal website)
What to prepare2 items from the author guidelines
- Abstract
- ≤ 250 words
- Keywords
- ≥ 5
Article types accepted8, with length limits
- brief reportters" along with Letters to the Editor. Brief Reports (≤ 1500 words, up to 4 figures/tables) Submissions to this section are fomain text ≤ 1,500 words
- case reportAuthors should review and adhere to the following guidelines for reporting of research results and case reports.Reporting of research results, especially regard…main text ≤ 1,100 words
- digital health technologies and innovationThe Digital Health Technologies and Innovation section focuses on publishing original, significant, innovative, and practice-changing research across all topics…Length not stated
- letterAuthors should review and adhere to the following guidelines for reporting of research results and case reports.Reporting of research results, especially regard…Length not stated
- meta-analysisAuthors should review and adhere to the following guidelines for reporting of research results and case reports.Reporting of research results, especially regard…Length not stated
- research paperAuthors should review and adhere to the following guidelines for reporting of research results and case reports.Reporting of research results, especially regard…Length not stated
- reviewAuthors should review and adhere to the following guidelines for reporting of research results and case reports.Reporting of research results, especially regard…main text ≤ 8,000 words
- review articleAuthors should review and adhere to the following guidelines for reporting of research results and case reports.Reporting of research results, especially regard…Length not stated
Policy excerpts from the journal's websiteAI use, Authorship, Conflicts of interest, License & copyright, Open access, Peer review, Preprints
- AI use Declaration of generative AI in scientific writing
Authors must declare the use of generative AI tools in the manuscript preparation process upon submission of the paper.Generative AI and AI-assisted technologies (“AI tools”) have been rapidly adopted in research and scholarly publishing, offering significant benefits while requiring clear standards for responsible and transparent use.Authors preparing a manuscript for this journal may use AI tool…
Source ↗Publisher website ·- Authorship Authorship
All authors should have made substantial contributions to all of the following: (1) the conception and design of the study, or acquisition of data, or analysis and interpretation of data, (2) drafting the article or revising it critically for important intellectual content, (3) final approval of the version to be submitted.
Source ↗Publisher website ·- Conflicts of interest Conflict of interest
All authors must disclose any financial and personal relationships with other people or organizations that could inappropriately influence (bias) their work. Examples of potential conflicts of interest include employment, consultancies, stock ownership, honoraria, paid expert testimony, patent applications/registrations, and grants or other funding. If there are no conflicts of interest then pleas…
Source ↗Publisher website ·- License & copyright Copyright
Exclusive License Agreement Model summary
Upon acceptance of an article, authors will be asked to complete an 'Exclusive License Agreement' (more information). Permitted third party reuse of gold open access articles is determined by the author's choice of user license
Source ↗Publisher website ·- Open access Open access
As an open access journal with no subscription charges, a fee (Article Publishing Charge, APC) is payable by the author or research funder to cover the costs associated with publication. This ensures your article will be immediately and permanently free to access by everyone. There is a 25% discount for Heart Rhythm Society members.Please visit our Open Access page for more information.
Source ↗Publisher website ·- Peer review Peer Review
Single blind peer review Model summary
This journal operates a single blind review process. All contributions will be initially assessed by the editor for suitability for the journal. Papers deemed suitable are then sent to a minimum of two independent expert reviewers to assess the scientific quality of the paper, frequently under the direction of a section editor with expertise in the manuscript topic. The Editor is responsible for t…
Source ↗Publisher website ·- Preprints Preprints policy and sharing
Preprint sharing allowed Model summary
Authors may share preprints of their work at any time. Elsevier supports responsible sharing. Find out how you can share your research published in Elsevier journals here.
Source ↗Publisher website ·
Excerpts are quoted from the journal's website; "model summary" lines are written by Workers AI and checked against the text. The journal's website is authoritative.
Profile
Publication details and official links
- Publisher
- Elsevier
- Country or region
- United States
- Language
- English
- ISSN
- 2666-5018
- Society / sponsor
- Heart Rhythm Society
- Official links
- Journal homepage ↗DOAJ
- Submission system ↗Publisher website
- Author guidelines ↗DOAJ
- Aims & Scope ↗DOAJ
- Special issues ↗Publisher website
- APC information ↗DOAJ
- Fee waivers ↗DOAJ
- Open access statement ↗DOAJ
- License & copyright ↗DOAJ
- Peer review process ↗DOAJ
- Editorial board ↗DOAJ
- Plagiarism policy ↗DOAJ
FAQ
Frequently asked questions about Heart Rhythm O2
What CAS zone is Heart Rhythm O2 in?
In the 2025 upgraded edition of the CAS Journal Ranking, Heart Rhythm O2 is in Zone 3 of Medicine, and in Zone 3 of the minor category Cardiac & Cardiovascular Systems. In the 2026 Xinrui edition it is in Zone 3 of Medicine. Zones from different editions, and from major and minor categories, are not interchangeable.
What is the impact factor of Heart Rhythm O2?
The journal's website gives an impact factor of 2.8; this is the journal's own figure, as LetPub lists none for it; CiteScore 3.4, h-index 31.
How long does peer review take at Heart Rhythm O2?
Based on the dates recorded on 13 articles published between October 2024 and October 2026 (the last 24 months), the median time from submission to acceptance is 54 days (interquartile range 50–58 days); authors report an average review time of about 17 weeks. Article statistics cover accepted papers only, publisher figures follow the journal's own definitions, and community reports come from authors' own submissions; none is a promise from the journal.
What are the manuscript requirements of Heart Rhythm O2?
According to the journal's author guidelines: Abstract: ≤ 250 words; Keywords: ≥ 5. A model extracted these from the author guidelines and each was checked against the text; check the latest version on the journal's website before submitting.
Where are the editorial board members of Heart Rhythm O2 based?
Of the 131 board members whose country the journal's board page names, 1 (about 1%) are in mainland China; the countries named most often are United States (91), Australia (9) and Canada (8). Counted from the institutions listed on the board page; for reference only.
Which databases index Heart Rhythm O2?
According to LetPub and DOAJ records, Heart Rhythm O2 is indexed in ESCI, Scopus and DOAJ. The journal's website also lists PMC; that list has not been checked against each database.
Is Heart Rhythm O2 open access, and what is the APC?
Heart Rhythm O2 is a fully open-access journal. APC about USD 2,370.
Sources and updates
The facts on this page come from LetPub, Publisher website, OpenAlex, DOAJ; every figure is tagged with its source and the date it was observed, and conflicting values are kept per source. LetPub source page: view ↗ (archived 2026-08-26). Last updated: .