Reproducibility of ventricular arrhythmias at exercise testing for prediction of non-ischaemic left ventricular scar in athletes
Open accessAbstract
AIMS: The non-ischaemic left ventricular scar (NILVS) is an emerging substrate of ventricular arrhythmias (VA) in the athlete. We tested the diagnostic value of VA reproducibility at repeated exercise testing (ET). METHODS AND RESULTS: We included consecutive athletes who underwent cardiac magnetic resonance (CMR) for evaluation of VA and two consecutive ET off-therapy within 12 months. Those with a positive family history of premature sudden death/cardiomyopathy, syncope/pre-syncope, ECG or echocardiography abnormalities, or low-risk VA (exercise-suppressed infundibular or fascicular VA) were excluded. The NILVS was defined as subepicardial/midmyocardial stria of late gadolinium enhancement involving >5% of the LV mass. Reproducibility was defined as the occurrence of VA with the same pattern and behaviour during repeated ET. Of 325 athletes who underwent CMR for evaluation of VA, 75 were included, and 30 showed NILVS involving three [2-4] LV segments. At first ET, athletes with NILVS showed a higher prevalence of exercise-induced VA (93% vs. 53%, P < 0.001), while other VA characteristics did not differ between groups. At repeated ET, reproducibility was observed in 97% of athletes with vs. 13% without NILVS (P < 0.001). The remaining 87% of athletes with normal CMR either did not show any VA at repeated ET (59%) or showed arrhythmias with different patterns, mostly infundibular. Reproducibility yielded a positive predictive value for NILVS of 83% and a negative predictive value of 98%. CONCLUSION: VA reproducibility at repeated ET predicted an underlying NILVS in athletes with VA and otherwise normal clinical work-up. This finding may improve risk stratification and appropriate CMR referral of athletes with apparently idiopathic VA.
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The same group investigated athletes presenting with exercise-induced ventricular arrhythmia and demonstrated that this pattern of myocardial fibrosis was associated with a 7-fold increased risk of recurrent ventricular arrhythmia during exercise testing.
“The same group investigated athletes presenting with exercise-induced ventricular arrhythmia and demonstrated this pattern of myocardial fibrosis was associated with a 7-fold increased risk of recurrent ventricular arrhythmia during exercise testing.9”
From Ventricular Arrhythmia and Cardiac Fibrosis in Endurance Experienced Athletes (VENTOUX) (2025) · cites this paper as [9]
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Lampert, R., Chung, E. H., Ackerman, M. J., Arroyo, A. R., Darden, D., Deo, R., Dolan, J., Etheridge, S. P., Gray, B. R., Harmon, K. G., et al. (2024) · Heart Rhythm · doi:10.1016/j.hrthm.2024.05.018 · Cited by 167 · see citing works
Ventricular Arrhythmia and Cardiac Fibrosis in Endurance Experienced Athletes (VENTOUX)
Javed, W., Botis, I., Goh, Z. M., Shabi, M., Brown, B., Tomoaia, R., Farooq, M., Levelt, E., Graham, L., Gierula, J., et al. (2025) · Circulation: Cardiovascular Imaging · doi:10.1161/circimaging.125.018470 · Cited by 21 · see citing works
“8,9 We aimed to determine whether focal myocardial fibrosis in asymptomatic veteran endurance athletes was prospectively associated with the incidence of ventricular arrhythmia on long-term implantable loop recorder (ILR) monitoring.”
- Authors
- Brunetti, G., Graziano, F., Cavigli, L., Cipriani, A., D’Ascenzi, F., Bauce, B., Pilichou, K., Perazzolo Marra, M., Corrado, D., & Zorzi, A.
- Affiliations
- University of Padua (IT)
- University of Siena (IT)
- Department of Cardiac, Thoracic and Vascular Sciences and Public Health, University of Padova , Via Giustiniani 2, 35128 Padova , Italy
- Corresponding author
- Zorzi, Alessandro
- ORCID
- Venue
- European Journal of Preventive Cardiology
- Publisher
- Oxford University Press (OUP)
- Published
- 2022-09-27
- Volume
- 30
- Issue
- 2
- Pages
- 107-116
- ISSN
- 2047-4873 (ISSN-L)
- 2047-4881
- OpenAlex
- W4297254637
- Cited by
- 32
- References
- 1
- Citations by year
- 2026: 10 · 2025: 7 · 2024: 7 · 2023: 8
- FWCI
- 3.86
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- Locations
- European Journal of Preventive Cardiology (publishedVersion, cc-by-nc)
- PubMed (publishedVersion)
- Use Siena air (University of Siena) (submittedVersion, cc-by-nc)
- Padua Research Archive (University of Padova) (submittedVersion)
- Topics
- Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiovascular Effects of Exercise
- Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiomyopathy and Myosin Studies
- Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac electrophysiology and arrhythmias
- Keywords
- ventricular arrhythmias, exercise testing, athletes, late gadolinium enhancement, cardiac magnetic resonance, sudden cardiac death risk stratification, idiopathic ventricular arrhythmia
- MeSH terms
- Arrhythmias, Cardiac, Cicatrix, Contrast Media, Exercise Test, Gadolinium, Humans, Reproducibility of Results, Athletes
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