Efficacy of fractional flow reserve measurements at side branch vessels treated with the crush stenting technique in true coronary bifurcation lesions

Byoung Kwon Lee, Hyun Hee Choi, Kyung Soon Hong, Byoung Keuk Kim, Jaemin Shim, Jung Sun Kim, Young Guk Ko, Donghoon Choi, Yangsoo Jang, Myeong Ki Hong

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Background: Measurement of fractional flow reserve (FFR) has been frequently used to optimize the results of coronary stenting in patients with significant narrowing of coronary arteries. Hypothesis: There has been a consensus that an FFR value >0.90 after stenting is a useful surrogate for favorable long-termclinical outcome. We evaluated the efficacy of FFR measurement at side branch vessels of true coronary bifurcation lesions that were treatedwith the crush stenting technique. Methods: This study included 12 patients with significant narrowing in both a main coronary vessel and side branch vessel who underwent the crush stenting procedure. Results: After crush stenting, FFR measurement was performed at the side branch vessel prior to and after kissing balloon angioplasty (KBA). FFR values increased significantly, from 0.94 ± 0.04 pre-KBA to 0.97 ± 0.03 post-KBA (P = 0.011). FFR values after crush stenting but prior to KBA alreadymeasured >0.90 in 9 of the 12 patients (75%). FFR values for the remaining 3 patientswere 0.88, 0.88, and 0.90, respectively. Conclusions: FFR measurement at side branch vessels of coronary bifurcation lesions treated with crush stenting may not contribute to adequate decision-making for improvement of long-term clinical outcomes. KBA should be strongly considered for patients with bifurcation lesions treated with crush stenting.

Original languageEnglish
Pages (from-to)490-494
Number of pages5
JournalClinical Cardiology
Issue number8
Publication statusPublished - 2010 Aug 1


All Science Journal Classification (ASJC) codes

  • Cardiology and Cardiovascular Medicine

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