Evidence map›Paper›PMID 42774688›Full record

ReviewHeart rhythm O22026

Stereotactic arrhythmia radioablation for ventricular tachycardia: Mechanisms, workflow, outcomes, and future directions.

Sai Kumar Samala, Khashayar Hematpour, Ramesh Hariharan, Danai Kitkungvan, Sriram Nathan, Biswajit Kar, Jagat Narula, Prapannajeet Biswal, Khashayar Fattah, Xander H T Wehrens and 8 more

Abstract readReview
In one paragraph

Review in Heart rhythm O2, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

18 authors.

Sai Kumar SamalaVivian L. Smith Department of Neurosurgery, McGovern Medical School, University of Texas Health Science Center, Houston, Texas.
Khashayar HematpourHeart & Vascular Institute, McGovern Medical School, University of Texas Health Science Center, Houston, Texas.
Ramesh HariharanHeart & Vascular Institute, McGovern Medical School, University of Texas Health Science Center, Houston, Texas.
Danai KitkungvanHeart & Vascular Institute, McGovern Medical School, University of Texas Health Science Center, Houston, Texas.
Sriram NathanHeart & Vascular Institute, McGovern Medical School, University of Texas Health Science Center, Houston, Texas.
Biswajit KarHeart & Vascular Institute, McGovern Medical School, University of Texas Health Science Center, Houston, Texas.
Jagat NarulaHeart & Vascular Institute, McGovern Medical School, University of Texas Health Science Center, Houston, Texas.
Prapannajeet BiswalVivian L. Smith Department of Neurosurgery, McGovern Medical School, University of Texas Health Science Center, Houston, Texas.
Khashayar FattahDepartment of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas.
Xander H T WehrensCardiovascular Research Institute, Baylor College of Medicine, Houston, Texas.
Sotirios NediosDepartment of Electrophysiology, Heart Center Leipzig at the University of Leipzig, Leipzig, Germany.
Felix HohendannerDepartment of Cardiology, Angiology and Intensive Care Medicine, Deutsches Herzzentrum der Charité, Berlin, Germany.
Joanne AlfieriDivision of Radiation Oncology, McGill University Health Centre, Montreal, Quebec, Canada.
Martin L BernierDivision of Cardiology, McGill University Health Centre, Montreal, Quebec, Canada.
Kenneth W MerrellDepartment of Radiation Oncology, Mayo Clinic, Rochester, Minnesota.
Konstantinos C SiontisDepartment of Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota.
Alejandro Vidal MargenatHeart & Vascular Institute, McGovern Medical School, University of Texas Health Science Center, Houston, Texas.
Sunil KrishnanVivian L. Smith Department of Neurosurgery, McGovern Medical School, University of Texas Health Science Center, Houston, Texas.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Stereotactic arrhythmia radioablation (STAR) is a novel and emerging treatment approach for managing treatment-refractory ventricular arrhythmias (VAs), particularly in patients deemed ineligible for or failing antiarrhythmic medications and catheter ablation. Preclinical studies suggest that STAR generates reactive oxygen species and causes rapid ultrastructural changes in cardiomyocytes, with ion channel modulation and gap junction remodeling that result in electrophysiological reprogramming. Several clinical studies have demonstrated the safety and efficacy of STAR, showing a significant reduction in arrhythmia burden with a low risk of severe treatment-related complications. Despite these promising results, the recurrence rate reported is still high, especially in patients with advanced heart failure. The convergence of advancements and refinements in procedural workflows, such as noninvasive electrocardiographic imaging, respiratory and cardiac motion management strategies, and the seamless integration of multiple radiographic imaging modalities for radiation treatment planning, promises to enhance treatment delivery accuracy and precision. However, questions remain regarding the optimal dose regimens, patient selection criteria, and potential long-term toxicities. Ongoing clinical trials and preclinical studies will provide further insights that can help improve the current practice. STAR is currently considered investigational pending randomized controlled trials comparing it with standard therapies. This review critically appraises STAR's readiness for broader clinical adoption, examining molecular mechanisms, treatment planning and delivery strategies, clinical outcomes and their heterogeneity, safety concerns, emerging beam technologies, and practical considerations for multidisciplinary teams establishing new STAR programs.

Indexed as

ArrhythmiaCardiac stereotactic body radiation therapyEAM integrationRadioablationVentricular tachycardia

Identifiers

PMID42774688
PMCPMC13594497

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.