1. Rationale and design of the Concordance study between FFR and iFR for the assessment of lesions in the left main coronary artery. The ILITRO-EPIC-07 Trial
- Author
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Oriol Rodríguez-Leor, José M. de la Torre-Hernández, Tamara García-Camarero, Ramón López-Palop, Bruno García del Blanco, Xavier Carrillo, Juan José Portero-Portaz, Marcelo Jiménez-Kockar, Josep Gómez-Lara, Soledad Ojeda, Fernando Alfonso, Salvatore Brugaletta, Ana Planas del Viejo, José Antonio Linares, Agustín Fernández-Cisnal, Beatriz Vaquerizo, Francisco Fernández-Salinas, José Francisco Díaz-Fernández, Juan Carlos Rama-Merchán, Eduardo Molina, Érika Muñoz-García, Francisco Morales, Ramiro Trillo, Miren Tellería, Juan Rondán, Pablo Avanzas, José Moreu, José Antonio Baz-Alonso, Felipe Hernández, Javier Escaned, Juan Sanchis, Fernando Lozano, Beatriz Toledano, Martí Puigfel, Mario Sádaba, and Armando Pérez de Prado
- Subjects
iFR ,FFR ,Left main coronary artery ,Medicine - Abstract
ABSTRACT Introduction and objectives: Patients with left main coronary artery (LMCA) stenosis have been excluded from the trials that support the non-inferiority of the instantaneous wave-free ratio (iFR) compared to the fractional flow reserve (FFR) in the decision-making process of coronary revascularization. This study proposes to prospectively assess the concordance between the two indices in LMCA lesions and to validate the iFR cut-off value of 0.89 for clinical use. Methods: National, prospective, and observational multicenter registry of 300 consecutive patients with intermediate lesions in the LMCA (angiographic stenosis, 25% to 60%. A pressure gudiewire study and determination of the RFF and the iFR will be performed: in the event of a negative concordant result (FFR > 0.80/iFR > 0.89), no treatment will be performed; in case of a positive concordant result (FFR ≤ 0.80/iFR ≤ 0.89), revascularization will be performed; In the event of a discordant result (FFR> 0.80/iFR ≤ 0.89 or FFR ≤ 0.80/iFR> 0.89), an intravascular echocardiography will be performed and revascularization will be delayed if the minimum lumen area is > 6 mm2. The primary clinical endpoint will be a composite of cardiovascular death, LMCA lesion-related non-fatal infarction or need for revascularization of the LMCA lesion at 12 months. Conclusions: Confirm that an iFR-guided decision-making process in patients with intermediate LMCA stenosis is clinically safe and would have a significant clinical impact. Also, justify its systematic use when prescribing treatment in these potentially high-risk patients. Registered at ClinicalTrials.gov ( Identifier: NCT03767621).
- Published
- 2022
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