title: Predictors of restenosis after excimer laser coronary angioplasty.
abstract: One hundred twenty-five lesions successfully treated with excimer laser coronary angioplasty at 3 centers were analyzed in a central core laboratory using detailed quantitative angiographic analysis. Sixty-seven narrowings had restenosis (> or = 50% diameter stenosis at restudy). Correlates of restenosis were as follows: baseline diameter stenosis was 79% in the restenosis group versus 71% in the group without restenosis (p = 0.0002), baseline minimal diameter stenosis was 0.55 mm in the restenosis group versus 0.72 mm in the group without restenosis (p = 0.006), final diameter stenosis was 40% in the restenosis group versus 32% in the group without restenosis (p = 0.002), lesion length > or = 7 mm was present in 43% of the restenosis group versus 21% in the group without restenosis (p = 0.009), and Thrombolysis in Myocardial Infarction trial flow 0 to 2 was 33% in the restenosis group versus 15% in the group without restenosis (p = 0.025). The strongest multivariate correlate of restenosis was the baseline diameter stenosis (p = 0.003). Whereas most predictors were not controllable, achieving a low residual diameter stenosis that is operator-dependent can favorably influence the restenosis rate.
authors.affiliation: Division of Cardiology, Andreas Gruentzig Cardiovascular Center, Emory University School of Medicine, Atlanta, Georgia 30322, USA.
authors.forename: Z M
authors.initials: ZM
authors.lastname: Ghazzal
authors.forename: E
authors.initials: E
authors.lastname: Burton
authors.forename: W S
authors.initials: WS
authors.lastname: Weintraub
authors.forename: F
authors.initials: F
authors.lastname: Litvack
authors.forename: D A
authors.initials: DA
authors.lastname: Rothbaum
authors.forename: L
authors.initials: L
authors.lastname: Klein
authors.forename: S B
authors.initials: SB
authors.lastname: King
mesh_terms: D000368:Aged; D016342:Angioplasty, Laser; D016009:Chi-Square Distribution; D003251:Constriction, Pathologic / Q000000981:diagnostic imaging / Q000601:surgery; D017023:Coronary Angiography; D003327:Coronary Disease / Q000000981:diagnostic imaging / Q000601:surgery*; D003331:Coronary Vessels / Q000601:surgery*; D005260:Female; D006801:Humans; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D011237:Predictive Value of Tests; D012008:Recurrence