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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 
 CLINICAL CARDIOLOGY, Vol.33(8) : 490-494, 2010 
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Issue Date
Aged ; Angioplasty, Balloon, Coronary/instrumentation* ; Angioplasty, Balloon, Coronary/methods* ; Blood Pressure ; Cardiac Catheterization* ; Coronary Angiography ; Coronary Stenosis/diagnostic imaging ; Coronary Stenosis/physiopathology ; Coronary Stenosis/therapy* ; Female ; Fractional Flow Reserve, Myocardial* ; Humans ; Male ; Middle Aged ; Patient Selection ; Predictive Value of Tests ; Republic of Korea ; Severity of Illness Index ; Stents* ; Treatment Outcome
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-term clinical outcome. We evaluated the efficacy of FFR measurement at side branch vessels of true coronary bifurcation lesions that were treated with 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 already measured > 0.90 in 9 of the 12 patients (75%). FFR values for the remaining 3 patients were 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.
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1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Ko, Young Guk(고영국) ORCID logo https://orcid.org/0000-0001-7748-5788
Kim, Byeong Keuk(김병극) ORCID logo https://orcid.org/0000-0003-2493-066X
Kim, Jung Sun(김중선) ORCID logo https://orcid.org/0000-0003-2263-3274
Shim, Jae Min(심재민)
Lee, Byoung Kwon(이병권) ORCID logo https://orcid.org/0000-0001-9259-2776
Jang, Yang Soo(장양수) ORCID logo https://orcid.org/0000-0002-2169-3112
Choi, Dong Hoon(최동훈) ORCID logo https://orcid.org/0000-0002-2009-9760
Hong, Myeong Ki(홍명기) ORCID logo https://orcid.org/0000-0002-2090-2031
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