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Fractional Flow Reserve Versus Angiography in Left Circumflex Ostial Intervention After Left Main Crossover Stenting

Authors
Nam, CW; Hur, SH; Koo, BK; Doh, JH; Cho, YK; Park, HS; Yoon, HJ; Kim, H; Chung, IS; Kim, YN; Fearon, WF; Tahk, SJ; Kim, KB
Citation
Korean circulation journal, 41(6):304-307, 2011
Journal Title
Korean circulation journal
ISSN
1738-55201738-5555
Abstract
Background and Objectives: Discrepancy between angiographic percent (%) diameter stenosis and fractional flow reserve (FFR) exists in non-left main bifurcation lesions. The aim of this study was to compare angiographic stenosis severity and FFR in jailed ostial left circumflex artery (LCX) lesions after left main (LM)-to-left anterior descending artery (LAD) crossover stenting.



Subjects and Methods: Twenty-nine (n=29) patients with distal LM or ostial LAD lesions treated by LM-to-LAD crossover stenting were consecutively enrolled. After successful stenting, FFR was measured at the jailed LCX. Additional intervention was performed in lesions with FFR <0.8.



Results: The mean reference diameter of LCX was 3.1±0.4 mm, and percent diameter stenosis after crossover stenting was 56±21%. Angiographically significant stenosis (>50%) at the ostial LCX occurred in 59% (17/29) of cases. Among them, only five (29%) lesions had functional significance, and underwent additional procedure. During follow-up, three patients in the deferral group and two patients in the additional intervention group had target lesion revascularization.



Conclusion: There was a discrepancy between angiographic percent diameter stenosis and FFR in jailed LCX lesions after LM crossover stenting.
Keywords
Coronary diseasePhysiologyStentsAngiography
DOI
10.4070/kcj.2011.41.6.304
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Cardiology
AJOU Authors
탁, 승제
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