The relationship between coronary artery dimension after rotational atherectomy and burr size

A. Kawamura, Y. Asakura, S. Ishikawa, K. Asakura, T. Okabe, M. Shibata, T. Takahashi, A. Yamane, S. Ogawa

研究成果: Article査読

抄録

Background: Rotational atherectomy has improved the treatment of heavily calcified coronary atherosclerotic lesions, but the relation ship between luminal dimension alter rotational atherectomy and rotablator burr size has yet to be elucidated. Methods and Results: After rotablation, 114 lesions were evaluated by IVUS as to luminal area (LA), major diameter (M), location, and arc of calcification. LA was 1.04 times larger than burr cross sectional area (1.04 ± 0.28, 0.38 ∼ 1.93), M was 1.13 times higher than burr size (1.13 ± 0.16, 0.70 ∼ 1.54). A subgroup analysis showed that M/B and LA/BA were significantly lower in in-stent lesions than in non-in-stent lesions (M/B: 1.03 ± 0.11 vs. 1.16 ± 0.16, LA/BA: 0.87 ± 0.15 vs. 1.10 ± 0.29 ; p < 0.005). Lesion eccentricity also affected the lumen size. In eccentric lesions, M/B=1.19 ± 0.18, LA/BA = 1.11 ± 0.32, whereas in concentric lesions, the M/B and LA/BA values were 1.07 ± 0.11, 0.97 ± 0.21 respectively (p < 0.05). Conclusions: Lumen obtained alter rotational atherectomy are often larger than expected, especially in eccentric or non-in-stent lesions, so we must determine burr size very carefully to minimize this effect.

本文言語English
ページ(範囲)106-110
ページ数5
ジャーナルJapanese Journal of Interventional Cardiology
16
2
出版ステータスPublished - 2001
外部発表はい

ASJC Scopus subject areas

  • 放射線学、核医学およびイメージング
  • 循環器および心血管医学

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