TY - JOUR
T1 - Predictors of Vessel Remodeling Following Directional Coronary Atherectomy
AU - Kawamura, Akio
AU - Asakura, Yasushi
AU - Okabe, Teruo
AU - Yamane, Akiko
AU - Hui-Chong, Li
AU - Ogawa, Satoshi
PY - 2004/1
Y1 - 2004/1
N2 - The purpose of this study was to clarify predictors of vessel remodeling following directional coronary atherectomy (DCA). Negative remodeling after DCA leads to restenosis. However, little is known about the predictors of the vessel remodeling. Serial IVUS was performed in 43 lesions. The vessel remodeling was defined as adaptive if vessel area at follow-up minus postprocedure vessel area was > 0 mm2, or as constrictive if < 0 mm2. Adaptive remodeling occurred in 21 (49%) lesions. Postprocedure percent plaque area was smaller in the adaptive group (32.9% ± 5.7% vs. 45.5% ± 8.8%; P < 0.005). At follow-up, vessel area was larger in the adaptive group. However, plaque area was similar between the two groups. As a result, lumen area was larger in the adaptive group. Multivariate analyses showed that postprocedure percent plaque area < 40% was the only predictor of adaptive remodeling (odds ratio, 6.68; P < 0.05).
AB - The purpose of this study was to clarify predictors of vessel remodeling following directional coronary atherectomy (DCA). Negative remodeling after DCA leads to restenosis. However, little is known about the predictors of the vessel remodeling. Serial IVUS was performed in 43 lesions. The vessel remodeling was defined as adaptive if vessel area at follow-up minus postprocedure vessel area was > 0 mm2, or as constrictive if < 0 mm2. Adaptive remodeling occurred in 21 (49%) lesions. Postprocedure percent plaque area was smaller in the adaptive group (32.9% ± 5.7% vs. 45.5% ± 8.8%; P < 0.005). At follow-up, vessel area was larger in the adaptive group. However, plaque area was similar between the two groups. As a result, lumen area was larger in the adaptive group. Multivariate analyses showed that postprocedure percent plaque area < 40% was the only predictor of adaptive remodeling (odds ratio, 6.68; P < 0.05).
KW - Directional coronary atherectomy
KW - Intravascular ultrasound
KW - Restenosis
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U2 - 10.1002/ccd.10737
DO - 10.1002/ccd.10737
M3 - Article
C2 - 14696158
AN - SCOPUS:0347992846
SN - 1522-1946
VL - 61
SP - 44
EP - 51
JO - Catheterization and Cardiovascular Interventions
JF - Catheterization and Cardiovascular Interventions
IS - 1
ER -