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Usefulness of Routine Fractional Flow Reserve for Clinical Management of Corona...

Van Belle, E; Cosenza, A; Baptista, SB; Vincent, F; Henderson, J; Santos, L, et al.

Importance: Approximately one-third of patients considered for coronary revascularization have diabetes, which is a major determinant of clinical outcomes, often influencing the choice of the revascularization strategy. The usefulness of fractional flow reserve (FFR) to guide treatment in this population is understudied and has been questioned. Objective: To evaluate the usefulness and rate of major adverse car...


Predictive factors of discordance between the instantaneous wave-free ratio and...

Dérimay, F; Johnson, N; Zimmermann, F; Adjedj, J; Witt, N; Hennigan, B; Koo, B; Barbato, E; Esposito, G; Trimarco, B; Rioufol, G; Baptista, SB

OBJECTIVES: To identify clinical, angiographic and hemodynamic predictors of discordance between instantaneous wave-free ratio (iFR) and fractional flow reserve (FFR). BACKGROUND: The iFR was found to be non-inferior to the gold-standard FFR for guiding coronary revascularization, although it is discordant with FFR in 20% of cases. A better understanding of the causes of discordance may enhance application of t...




Safety of the Deferral of Coronary Revascularization on the Basis of Instantane...

Escaned, J; Ryan, N; Mejía-Rentería, H; Cook, CM; Dehbi, HM; Alegria-Barrero, E; Alghamdi, A; Al-Lamee, R; Altman, J; Ambrosia, A; Baptista, SB

OBJECTIVES: The aim of this study was to investigate the clinical outcomes of patients deferred from coronary revascularization on the basis of instantaneous wave-free ratio (iFR) or fractional flow reserve (FFR) measurements in stable angina pectoris (SAP) and acute coronary syndromes (ACS). BACKGROUND: Assessment of coronary stenosis severity with pressure guidewires is recommended to determine the need for m...



Nonculprit Stenosis Evaluation Using Instantaneous Wave-Free Ratio in Patients ...

Thim, T; Gotberg, M; Frobert, O; Nijveldt, R; van Royen, N; Baptista, SB; Koul S, et al.

OBJECTIVES: The aim of this study was to examine the level of agreement between acute instantaneous wave-free ratio (iFR) measured across nonculprit stenoses in patients with ST-segment elevation myocardial infarction (STEMI) and iFR measured at a staged follow-up procedure. BACKGROUND: Acute full revascularization of nonculprit stenoses in STEMI is debated and currently guided by angiography. Acute functional ...


Early peripheral endothelial dysfunction predicts myocardial infarct extension ...

Baptista, SB; Faustino, M; Brízida, L; Loureiro, J; Augusto, J; Abecasis, J; Monteiro, C; Leal, P; Nédio, M; Abreu, PF; Gil, V; Morais, C

INTRODUCTION AND OBJECTIVES: The role of endothelial dysfunction (ED) in patients with ST-elevation myocardial infarction (STEMI) is poorly understood. Peripheral arterial tonometry (PAT) allows non-invasive evaluation of ED, but has never been used for this purpose early after primary percutaneous coronary intervention (P-PCI). Our purpose was to analyze the relation between ED assessed by PAT and both the pre...


cFFR as an alternative to FFR: please do not contrast simplicity!

Leone, AM; Cialdella, P; Martin-Reyes, R; Baptista, SB; Amabile, N; Raposo, L


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