Circulation Research 'Under Review': What Each Status Means

Before the paper reaches external reviewers, an AHA senior editor at Circulation Research evaluates whether the basic-cardiovascular mechanism warrants Circulation Research's selective editorial slots. Manuscripts that are not likely to receive a priority sufficient for publication are not referred for external peer review and are returned after initial screening; the AHA publishes no desk-rejection rate.

A desk rejection can mean the senior editor concluded that the work would fit better at a sister AHA family title (Circulation for broader clinical implications, ATVB for vascular-specific work, Stroke for cerebrovascular focus) or that the basic-cardiovascular mechanism depth is insufficient for Circulation Research's bar.

The AHA editorial office confirms files are complete: manuscript with figures embedded, supplementary information separate, ethics-statement documentation including institutional animal care and use committee approval for animal work, and the author-suggested reviewer list (at least 5 potential reviewers, up to 3 exclusions). Original Research manuscripts are returned only if they fail the AHA's format-free Minimum Submission Requirements (all files needed for review, the manuscript assembled in the AHA order, and references, figures and tables cited in numerical order). Reporting checklists (for example ARRIVE for animal work) and conflict-of-interest forms are collected when you submit a revision.

The senior editor reads the paper and evaluates basic-cardiovascular mechanism significance, novelty, and AHA family fit (Circulation Research vs Circulation vs ATVB vs Stroke). The AHA says a manuscript may be referred to another AHA journal before or after peer review.

Ambiguous-fit papers can be considered for AHA family routing: the AHA says a manuscript may be referred to another AHA journal before or after peer review. The senior editor may route to Circulation (for broader clinical-cardiology implications), Circulation: Heart Failure (HF-specific), or other AHA family titles, before or after peer review. A referral saves the author a separate cascade submission, and the AHA says the downstream journal editors have already done a preliminary assessment of the article.

The AHA says editors typically select reviewers based on areas of expertise, and authors are encouraged to provide at least five potential reviewers, with the editors making the ultimate decision regarding review. The AHA publishes no reviewer count and no recruitment time, and qualified cardiovascular reviewers must accept the invitation.

Once reviewers agree to review, the AHA publishes no per-reviewer turnaround time; the journal says an editorial decision is typically made in fewer than 21 days for Regular Articles. The AHA reviewer guidance asks reviewers to judge originality and scientific importance, the adequacy of the experimental design and methods, the quality of the data and presentation of results, and whether the authors' interpretation of their data is appropriate, and for a mechanism paper these questions usually turn on mechanism depth, validation depth, and reproducibility.

After reports return, the senior editor synthesizes them. An editorial decision is communicated by email and typically made in fewer than 21 days for Regular Articles per AHA editorial guidance. All Original Research articles are published Online First within 24 hours of acceptance.

• Rejection within the first days: Administrative issue or immediate scope mismatch.

• Rejection within the first one to two weeks: Senior editor desk rejection or AHA family routing; manuscripts unlikely to receive sufficient priority are returned after initial screening.

• Still Under Review after 3 weeks: Longer than the fewer-than-21-days typical editorial decision time the journal states for Regular Articles; it does not by itself mean rejection.

• Still Under Review after 8 weeks: Reviewer-recruitment or reviewer-report delay despite the typical fewer-than-21-days decision time. A polite inquiry via the submission portal is appropriate.

• Status changes to "Reports Received": Reports are in and the editor is working toward a decision.

This is the most common anxiety we hear from Circulation Research authors during the active editorial window. The honest answer: not necessarily. Circulation Research's fewer-than-21-days typical decision time for Regular Articles means 4 weeks is longer than usual, but it does not by itself signal rejection and may mean the paper is past the desk screen and in external review or editorial synthesis.

One possible explanation for the delay is that one of the assigned reviewers asked for an extension and the senior editor granted it, or that the senior editor invited a third reviewer to break a split opinion. Either is ordinary in peer review.

What you should NOT do during the 4-to-6-week window is email the editorial office. An inquiry at 4 weeks adds friction without accelerating the timeline.

If your Circulation Research paper is rejected after review, the natural cascade depends on what the reviewers and senior editor cited:

Circulation is the most natural AHA cascade for papers where the basic-cardiovascular mechanism has broader clinical implications. AHA family routing during triage often handles this before formal rejection. The transfer process happens within the AHA family.

Cardiovascular Research (ESC) is the European cardiology cascade option for basic-cardiovascular papers. ESC operates independently from AHA; reports do not transfer.

Arteriosclerosis, Thrombosis, and Vascular Biology (ATVB) is the AHA family cascade for vascular-specific basic research where the mechanism focus is narrower than Circulation Research's bar.

Nature Cardiovascular Research is a Nature Portfolio cascade option for top-tier basic-cardiovascular papers where the Nature Portfolio publishing model is preferred. Nature Portfolio operates independently.

The AHA reviewer guidance asks reviewers to judge originality and scientific importance, experimental design and methods, the quality of the data, and the authors' interpretation, among other points. The table below maps four review themes that matter for a mechanism paper to actionable preparation.

Across the Circulation Research-targeted manuscripts we review, three patterns generate the most consistent reviewer concerns we see once a paper enters the AHA editorial workflow. The repeated problem is not a lack of cardiovascular relevance. It is that the manuscript asks the senior editor and reviewers to accept a cardiovascular mechanism before the abstract, first figure, methods, animal-model section, and human-sample evidence make the causal chain hard to dismiss.

Mechanism without orthogonal confirmation at Circulation Research. When the central cardiovascular mechanism rests on one experimental approach, reviewers consistently request a second orthogonal validation. A single inhibitor, knockdown, imaging readout, or omics association is usually not enough for the Circulation Research bar. The strongest manuscripts pair genetic and pharmacologic perturbation, in-vitro and in-vivo evidence, or mechanistic rescue experiments so the main figures prove causality rather than only association.

Check whether your Circulation Research orthogonal evidence is visible →

In-vitro-only Circulation Research studies lacking in-vivo or human-validation depth. When the mechanism is established only in cell-culture systems without animal-model or human-sample validation, reviewer consultation often extends. The methods and figure sequence need to show physiological relevance: animal strain provenance, intervention timing, hemodynamic or histologic readouts, tissue-specific expression, and patient-cohort correlation when available. The strongest revisions add in-vivo perturbation phenotyping or patient-cohort correlation data before reviewers ask for it.

Check if your Circulation Research validation package is reviewer-ready →

AHA family routing flagged by senior editor. When the senior editor concludes the work is sound but the basic-cardiovascular mechanism is narrower than the Circulation Research bar, family routing to ATVB or other AHA family titles is common during desk review.

The manuscript component that usually decides this route is the framing of the central claim: vascular-specific biology may fit ATVB, clinical-cardiology breadth may point to Circulation, and an open-access fit may point to JAHA. Before submission, the practical fix is to align the title, abstract, main figures, methods, and cover letter around the basic-cardiovascular mechanism rather than only around disease association.

Check your Circulation Research AHA-family routing plan →

This guide tells you what Circulation Research editors look for while the manuscript is being routed or reviewed. The review tells you whether your paper passes that cardiovascular-mechanism check before the decision arrives. Manusights reviews manuscripts targeting Circulation Research and nearby cardiovascular venues, offers a 60-day money-back guarantee for eligible review orders, and we do not train AI on private author manuscripts.

Source limitation: this guidance combines official guidance, public status/timing signals, and anonymized Manusights pre-submission review patterns; it does not use private AHA editorial records. Compared with official guidance, the useful reader-facing value is translating the status into orthogonal-validation, in-vivo, human-sample, and data-availability checks authors can act on while waiting.

This page was created from AHA's public author guidance at AHA journal author instructions, AHA editorial-process documentation, Circulation Research editorial-speed data (fewer than 21 days typical decision time for Regular Articles, at least 5 author-suggested reviewers), and Manusights pre-submission review experience with Circulation Research-targeted manuscripts.

For the AHA cardiovascular landscape beyond Circulation Research, see Circulation (broad clinical cardiology), Circulation: Heart Failure (HF-specific), ATVB (vascular-specific), and JAHA (open-access AHA). The choice across these titles depends on whether the central contribution is basic-cardiovascular-mechanism (Circulation Research), broad-clinical-cardiology (Circulation), HF-specific (Circulation: Heart Failure), vascular-specific (ATVB), or open-access (JAHA).

For stronger cluster routing, compare this page with the Circulation Research submission guide, Circulation Research review time, Circulation Research cover letter, Circulation under review, and JAMA Cardiology under review.

Prepare a response template that addresses both a basic-cardiovascular-mechanism perspective and a broader-cardiology perspective.

For a pre-upload check of your manuscript against the Circulation Research basic-cardiovascular-mechanism-plus-orthogonal-validation bar before submission, our Circulation Research pre-submission diagnostic flags the mechanism-depth and in-vivo-validation gaps most likely to surface in reviewer reports.