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Per-vessel level analysis of fractional flow reserve and instantaneous wave-free ratio discordance ― insights from the AJIP registry ―

  • Takayuki Warisawa
  • , Christopher M. Cook
  • , Henry Seligman
  • , James P. Howard
  • , Yousif Ahmad
  • , Christopher Rajkumar
  • , Shunichi Doi
  • , Masafumi Nakayama
  • , Toru Tanigaki
  • , Hiroyuki Omori
  • , Akihiro Nakajima
  • , Futoshi Yamanaka
  • , Sonoka Goto
  • , Yohei Yakuta
  • , Kenichi Karube
  • , Teruyoshi Uetani
  • , Yuetsu Kikuta
  • , Yasutsugu Shiono
  • , Yoshiaki Kawase
  • , Hidetaka Nishina
  • Sunao Nakamura, Javier Escaned, Yoshihiro J. Akashi, Hitoshi Matsuo, Justin E. Davies

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Background: The per-vessel level impact of physiological pattern of disease on the discordance between fractional flow reserve (FFR) and instantaneous wave-free ratio (iFR) has not been clarified. Methods and Results: Using the AJIP registry, vessels with FFR/iFR discordance (133/671 [19.8%]) were analyzed. In the left anterior descending artery (LAD), physiologically diffuse disease, as assessed by pressure-wire pullback, was associated with FFR−/ iFR+ (83.3% [40/48]), while physiologically focal disease was associated with FFR+/iFR− (57.4% [31/54]), significantly (P<0.0001). These differences were not significant in non-LAD (P=0.17). Conclusions: The impact of physiological pattern of disease on FFR/iFR discordance is more pronounced in the LAD.

Original languageEnglish
Pages (from-to)1034-1038
Number of pages5
JournalCirculation Journal
Volume84
Issue number6
DOIs
StatePublished - 2020
Externally publishedYes

Keywords

  • Diffuse disease
  • Fractional flow reserve
  • Instantaneous wave-free ratio

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