Results 51 to 60 of about 7,681,842 (240)

Pathophysiological factors contributing to fractional flow reserve and instantaneous wave-free ratio discordance [PDF]

Reviews in Cardiovascular Medicine, 2022
The diagnostic accuracy and clinical benefits of instantaneous wave-free ratio (iFR) compared to fractional flow reserve (FFR) have been well-established in the literature. Despite the advantages of non-hyperemic pressure indices, approximately 20% of
Benjamin Fogelson, Hassan Tahir, James Livesay, Raj Baljepally   +3 more
doaj   +1 more source

Impact of target coronary artery stenosis severity measured by instantaneous wave-free ratio on to bypassed graft patency [PDF]

Ķazaķstannyṇ Klinikalyķ Medicinasy, 2021
Background: This study aimed to assess the impact of the measurement of the degree of target coronary artery stenosis using the instantaneous wave-free ratio (iFR) on patency of attached grafts.
Almas Tolegenuly, Arslan Mamedov, Rimantas Benetis   +2 more
doaj   +1 more source

Use of the Instantaneous Wave-free Ratio or Fractional Flow Reserve in PCI [PDF]

New England Journal of Medicine, 2017
Coronary revascularization guided by fractional flow reserve (FFR) is associated with better patient outcomes after the procedure than revascularization guided by angiography alone. It is unknown whether the instantaneous wave-free ratio (iFR), an alternative measure that does not require the administration of adenosine, will offer benefits similar to ...
Davies, J. E., Sen, S., Dehbi, H. -M., Al-Lamee, R., Petraco, R., Nijjer, S. S., Bhindi, R., Lehman, S. J., Walters, D., Sapontis, J., Janssens, L., Vrints, C. J., Khashaba, A., Laine, M., Van Belle, E., Krackhardt, F., Bojara, W., Going, O., Härle, T., Indolfi, C., Niccoli, G., Ribichini, F., Tanaka, N., Yokoi, H., Takashima, H., Kikuta, Y., Erglis, A., Vinhas, H., Canas Silva, P., Baptista, S. B., Alghamdi, A., Hellig, F., Koo, B. -K., Nam, C. -W., Shin, E. -S., Doh, J. -H., Brugaletta, S., Alegria-Barrero, E., Meuwissen, M., Piek, J. J., Van Royen, N., Sezer, M., Di Mario, C., Gerber, R. T., Malik, I. S., Sharp, A. S. P., Talwar, S., Tang, K., Samady, H., Altman, J., Seto, A. H., Singh, J., Jeremias, A., Matsuo, H., Kharbanda, R. K., Patel, M. R., Serruys, P., Escaned, J.   +57 more
openaire   +8 more sources

Coronary Flow Variations Following Percutaneous Coronary Intervention Affect Diastolic Nonhyperemic Pressure Ratios More Than the Whole Cycle Ratios

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2022
Background Post–percutaneous coronary intervention (PCI) fractional flow reserve ≥0.90 is an accepted marker of procedural success, and a cutoff of ≥0.95 has recently been proposed for post‐PCI instantaneous wave‐free ratio.
Muhammad Aetesam‐ur‐Rahman, Tian X. Zhao, Kitty Paques, Joana Oliveira, Bharat Khialani, Stephen Kyranis, Denise M. Braganza, Sarah C. Clarke, Martin R. Bennett, Nick E. J. West, Stephen P. Hoole   +10 more
doaj   +1 more source

Instantaneous wave-free ratio cutoff values for nonculprit stenosis classification in patients with ST-segment elevation myocardial infarction (an iSTEMI substudy)

, 2020
An iSTEMI substudyOBJECTIVES: The instantaneous wave-free ratio cutoff value of 0.90 had a negative predictive value of 89%. Acute instantaneous wave-free ratio 0.93 had a negative predictive value of 100%. Acute instantaneous wave-free ratio
van Royen, N, Baptista, SB, et al., Thim, T, Nijveldt, R, Götberg, M, Fröbert, O, Fröbert, O., Christian Juhl Terkelsen, Kellerth, T., Nijveldt, Robin,, Baptista, S.B., Jakobsen, Lars,, Nijveldt, R., Maeng, Michael,, Evald Høj Christiansen, Götberg, M., Sasha Koul, Kristensen, S.D., Terkelsen, Christian Juhl,, Terkelsen, C.J., Michael Maeng, Thim, T., Thomas Kellerth, Maeng, M., Bøtker, H.E., Lars Jakobsen, Koul, S., Koul, Sasha,, Kristensen, Steen Dalby,, Troels Thim, Hans Erik Bøtker, Matthias Götberg, Fröbert, Ole,, Niels van Royen, Baptista, Sergio Bravo,, Royen, N. van, Sergio Bravo Baptista, Ole Fröbert, van Royen, Niels,, Thim, Troels,, Kellerth, Thomas,, Robin Nijveldt, Jakobsen, L., Christiansen, Evald Høj,, Steen Dalby Kristensen, Christiansen, E.H., Götberg, Matthias,, Bøtker, Hans Erik,   +47 more
core   +2 more sources

Instantaneous Wave-Free Ratio: Novel Adenosine-Free Method to Assess Intracoronary Physiology

, 2023
Fractional flow reserve assessment was accepted as a crucial strategy in stable patients undergoing coronary angiography without prior noninvasive evaluation in the presence of borderline lesions and in patients with multivessel coronary artery disease ...
IGLESİAS, Juan F., RAFFİ, Marco, Degrauwe, Sophie, ÇİMCİ, Murat, Musayeb, Yazan, KARADAĞ, Bilgehan   +5 more
core   +1 more source

Diabetes mellitus and long-term safety of FFR and iFR-based coronary revascularization deferral

REC: Interventional Cardiology (English Ed.), 2022
Introduction and objectives: The safety of physiology-based revascularization in patients with diabetes mellitus has been scarcely investigated. Our objective was to determine the safety of deferring revascularization based on the fractional flow reserve
Alex F. Castro‐Mejía, Alejandro Travieso-González, María José Pérez-Vizcayno, Hernán Mejía‐Rentería, Iván J. Núñez-Gil, Pablo Salinas, Luis Nombela‐Franco, Pilar Jiménez‐Quevedo, Antonio Fernández‐Ortiz, Carlos Macaya, Javier Escaned, Nieves Gonzalo   +11 more
doaj   +1 more source

Supplemental Material - Instantaneous wave free ratio value impact on left internal mammary artery graft patency: iCABG study

, 2022
Supplemental Material for Instantaneous wave free ratio value impact on left internal mammary artery graft patency: iCABG study by Rasa Ordiene, Ramunas Unikas, Ali Aldujeli, Rimantas Benetis, Povilas Jakuska, Indre Ceponiene, Antanas Jankauskas, Jurgita
Justin Davies (395077), Ramunas Unikas (12515153), Povilas Jakuska (12515159), Ali Aldujeli (12515156), Rima Braukyliene (12515174), Antanas Jankauskas (12515162), Rasa Ordiene (12515150), Gabriele Rudokaite (12515171), Prakash P Punjabi (12515180), Mindaugas Stonis (12515177), Tadas Lenkutis (12515168), Jurgita Plisiene (12515165), Rimantas Benetis (725238), Indre Ceponiene (644080)   +13 more
core   +1 more source

Rate Pressure Products Affect the Relationship between the Fractional Flow Reserve and Instantaneous Wave-Free Ratio [PDF]

, 2021
博士(医学) 乙第3110号(主論文の要旨、要約、審査結果の要旨、本文)，著者名:Suguru EBIHARA, Hisao OTSUKI, Hiroyuki ARASHI, Junichi YAMAGUCHI, Nobuhisa HAGIWARA，タイトル:Rate Pressure Products Affect the Relationship between the Fractional Flow Reserve and Instantaneous Wave-Free Ratio，掲載誌 ...
海老原, 卓
core   +2 more sources

Measurement of Instantaneous Wave-free Ratio through a Diagnostic Catheter: Comparison of the Results between 4Fr and 5Fr

Artery Research, 2020
Background: Clinical evidence of coronary pressure assessment through a diagnostic catheter is limited. The aim of this study was to assess the difference, safety, and rate of successful measurement of Instantaneous Wave-free Ratio (iFR) through 4Fr and ...
Shinichiro Masuda, Ryota Uemura, Yoshiyuki Saiki, Tatsuo Haraki, Takeshi Lee   +4 more
doaj   +1 more source