Genetics of supraventricular tachycardia: current evidence with a focus on translational relevance and personalized medicine
By
Amin Esmailian
Mohammad Alasti
May 29, 2026
Clinical Scorecard: Genetic Factors in Supraventricular Tachycardia: An Overview of Current Research Emphasizing Translational Applications and Personalized Approaches
At a Glance
Category Detail
Condition Supraventricular Tachycardia (SVT) Key Mechanisms Inherited susceptibility, genetic factors, polygenic/oligogenic susceptibility, genotype-to-substrate relationships. Target Population Patients with SVT, particularly those with early-onset, familial, or cardiomyopathy-overlap presentations. Care Setting Clinical practice, emergency departments, outpatient electrophysiology referrals, catheter ablation procedures.
Key Highlights
SVTs are common arrhythmias with significant morbidity despite low mortality. Genetic architecture varies by SVT subtype, with specific genes implicated in AVNRT and accessory pathway-mediated AVRT/WPW. Current clinical utility of genetics is highest in syndromic and cardiomyopathy-associated SVT. Routine genetic testing is not indicated for most isolated SVT cases. Phenotype-guided evaluation may enable targeted, patient-centered personalization. Guideline-Based Recommendations
Diagnosis
Diagnosis relies on electrocardiographic documentation and ambulatory rhythm monitoring. Management
Catheter ablation is effective for many SVT subtypes, achieving high success rates. Monitoring & Follow-up
Consideration of arrhythmia burden and coexisting structural or genetic heart disease. Risks
SVTs can lead to recurrent palpitations, syncope, impaired exercise tolerance, and anxiety. Patient & Prescribing Data
Patients with SVT, particularly those with familial or syndromic presentations.
Genetic discoveries may refine SVT risk stratification and inform therapeutic decision-making.
Clinical Best Practices
Implement phenotype-first evaluation and targeted testing strategies. Utilize rigorous variant interpretation and multidisciplinary governance. Related Resources & Content
