Tailoring Antiplatelet Therapy Duration After PFO Closure: Insights From the PROLONG Registry.
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Gaspardone Carlo, Trabattoni Daniela, d'Atri Daniele O, Fraccaro Chiara, Beneduce Alessandro, Morosato Michele, Costa Paolo, Falasconi Giulio, Mazza Riccardo, Mager Riccardo, Donti Andrea, Saia Francesco, Toscano Evelina, Scalise Filippo, Patti Giuseppe, Nerla Roberto, Castriota Fausto, Musto Carmine, Paciaroni Maurizio, Burzotta Francesco, Ricchetti Gianluca, Vella Ciro S, Ferri Luca A, Bassanelli Giorgio, Ancona Marco B, Russo Filippo, Bellini Barbara, Barone Giuseppe, Slavich Massimo, Napoli Francesca, Paci Gabriele, Versaci Francesco, Pappone Carlo, Mancone Massimo, Tarantini Giuseppe, Chieffo Alaide, Metra Marco, Gaspardone Achille, Montorfano Matteo, Godino Cosmo
Аннотация
OBJECTIVES: This study aimed to evaluate the impact of APT duration on long-term outcomes after PFO closure.
METHODS: PROLONG (PFO Transcatheter Occlusion Long-Term Outcomes National Group; NCT06504121) is a multicenter retrospective registry of patients who underwent PFO device closure between 1999 and 2013 at 12 Italian centers. This analysis included patients with successful PFO closure, no significant residual shunt, and no other indication for long-term antithrombotic therapy. Patients were categorized by APT duration after PFO closure in the discontinuation group (≤12 months) or the continuation group (>12 months). The primary outcome was net adverse clinical events (NACE), a composite of ischemic events (ischemic stroke, transient ischemic attack, or systemic embolism) and major bleeding (Bleeding Academic Research Consortium ≥3). Inverse probability of treatment weighting was applied for baseline confounders.
RESULTS: Among 940 patients (mean age 47 ± 12 years; 55% women) followed for 14.0 ± 3.1 years, the cumulative incidence of NACE was 3.6% in the APT discontinuation group and 7.2% in the APT continuation group (adjusted HR [aHR]: 0.71; 95% CI: 0.38-1.37; P = 0.31). Ischemic events were similar (3.1% vs 4.3%; P = 0.66), while major bleeding was lower in the APT discontinuation group (0.9% vs 2.8%; P = 0.014). APT discontinuation was associated with lower NACE in patients with Risk of Paradoxical Embolism (RoPE) score ≥7 (aHR: 0.32; 95% CI: 0.11-0.90; P = 0.039), but not in those with RoPE <7 (aHR: 1.07; 95% CI: 0.49-2.35; P = 0.89; P for interaction = 0.089).
CONCLUSIONS: In patients with a RoPE score ≥7, early discontinuation of APT after effective PFO closure was associated with a lower incidence of NACE at long-term follow-up.