Abstract
Arrhythmias are a major cause of morbidity and mortality in repaired Tetralogy of Fallot (rTOF). However, predicting those at risk for life-threatening ventricular arrhythmias (VA) remains difficult. Many centers approach risk assessment at the time of surgical pulmonary valve intervention. Increasing numbers of patients have undergone transcatheter pulmonary valve replacement (TPVR), yet there are no studies evaluating VA in rTOF undergoing TPVR and the approach to risk assessment for these patients. A single center retrospective study was performed. The institutional interventional database was queried to identify all adults ≥ 18 years of age with rTOF status who underwent TPVR from 2010 to 2019. A total of 81 patients with rTOF underwent TPVR from 2010 to 2019. Mean age at time of TPVR was 27 ± 13 years; follow up after TPVR was 6.4 ± 3.1 years. VA events occurred in 4 patients (5%). There was no significant difference in current era VA risk factors in rTOF patients between the VA event group and the non-VA event group. VA risk in this cohort of rTOF with TPVR was 5%, comparable to that reported in current era surgical cohort with similar follow up. Multi-center agreement on risk assessment protocol is needed for future studies.
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All authors contributed to the study concept and design. Data collection was performed by AKD, ZD, and VS. Data analysis was performed by SB. The first draft of the manuscript was written by AKD and AK. All authors commented on prior drafts of the manuscript and all authors approved the final manuscript.
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Dr. Daniels is a consultant to Medtronic. The other authors have no relevant financial or non-financial interests to disclose.
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Dodeja, A.K., Daniels, Z., Mah, M.L. et al. Ventricular Arrhythmic Events After Transcatheter Pulmonary Valve Replacement in Adults with Repaired Tetralogy of Fallot. Pediatr Cardiol 44, 1226–1231 (2023). https://doi.org/10.1007/s00246-023-03120-1
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DOI: https://doi.org/10.1007/s00246-023-03120-1