Fractional Flow Reserve Versus Angiography in Left Circumflex Ostial Intervention After Left Main Crossover Stenting.
10.4070/kcj.2011.41.6.304
- Author:
Chang Wook NAM
1
;
Seung Ho HUR
;
Bon Kwon KOO
;
Joon Hyung DOH
;
Yun Kyeong CHO
;
Hyoung Seob PARK
;
Hyuck Jun YOON
;
Hyungseop KIM
;
In Sung CHUNG
;
Yoon Nyun KIM
;
William F FEARON
;
Seung Jae TAHK
;
Kwon Bae KIM
Author Information
1. Department of Internal Medicine, Keimyung University College of Medicine, Dongsan Medical Center, Daegu, Korea. shur@dsmc.or.kr
- Publication Type:Original Article
- Keywords:
Coronary disease;
Physiology;
Stents;
Angiography
- MeSH:
Angiography;
Arteries;
Constriction, Pathologic;
Coronary Disease;
Follow-Up Studies;
Humans;
Stents
- From:Korean Circulation Journal
2011;41(6):304-307
- CountryRepublic of Korea
- Language:English
-
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.
