title: Effect of preintervention remodeling type on subsequent coronary artery behavior after directional atherectomy.
abstract: To evaluate the influence of preintervention remodeling on subsequent vessel behavior after directional coronary atherectomy (DCA) under intravascular ultrasound (IVUS) guidance, serial (before and after DCA and at 6-month follow-up) IVUS data were analyzed for 246 lesions that were classified into 2 categories: positive remodeling (PR) in 77 lesions versus intermediate or negative remodeling in 169 lesions. Although the 2 groups had similar baseline characteristics, IVUS data showed that the PR group had a greater acute lumen area (LA) gain without an increased late LA loss, resulting in a greater net (acute plus late) LA gain and follow-up LA. This suggests that IVUS-guided DCA may neutralize the negative impact of preintervention PR on late vessel patency.
authors.affiliation: Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka City, Osaka, Japan. takeda@xk9.so-net.ne.jp
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Takeda
authors.forename: Etsuo
authors.initials: E
authors.lastname: Tsuchikane
authors.forename: Tomoko
authors.initials: T
authors.lastname: Kobayashi
authors.forename: Kenji
authors.initials: K
authors.lastname: Yachiku
authors.forename: Kenya
authors.initials: K
authors.lastname: Nasu
authors.forename: Nobuhisa
authors.initials: N
authors.lastname: Awata
authors.forename: Tohru
authors.initials: T
authors.lastname: Kobayashi
mesh_terms: D000368:Aged; D017225:Atherectomy, Coronary; D003324:Coronary Artery Disease / Q000000981:diagnostic imaging* / Q000503:physiopathology / Q000601:surgery*; D003331:Coronary Vessels / Q000000981:diagnostic imaging* / Q000503:physiopathology / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D013997:Time Factors; D016896:Treatment Outcome; D018084:Ultrasonography, Interventional; D020257:Ventricular Remodeling / Q000502:physiology*