Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 106-110 |
| Number of pages | 5 |
| Journal | Japanese Journal of Interventional Cardiology |
| Volume | 16 |
| Issue number | 2 |
| Publication status | Published - 2001 |
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Keywords
- Burr size
- IVUS
- Rotational atherectomy
ASJC Scopus subject areas
- Cardiology and Cardiovascular Medicine
- Radiology Nuclear Medicine and imaging
Cite this
The relationship between coronary artery dimension after rotational atherectomy and burr size. / Kawamura, A.; Asakura, Y.; Ishikawa, S.; Asakura, K.; Okabe, T.; Shibata, M.; Takahashi, T.; Yamane, A.; Ogawa, S.
In: Japanese Journal of Interventional Cardiology, Vol. 16, No. 2, 2001, p. 106-110.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - The relationship between coronary artery dimension after rotational atherectomy and burr size
AU - Kawamura, A.
AU - Asakura, Y.
AU - Ishikawa, S.
AU - Asakura, K.
AU - Okabe, T.
AU - Shibata, M.
AU - Takahashi, T.
AU - Yamane, A.
AU - Ogawa, S.
PY - 2001
Y1 - 2001
N2 - 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.
AB - 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.
KW - Burr size
KW - IVUS
KW - Rotational atherectomy
UR - http://www.scopus.com/inward/record.url?scp=0035056206&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0035056206&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0035056206
VL - 16
SP - 106
EP - 110
JO - Japanese Journal of Interventional Cardiology
JF - Japanese Journal of Interventional Cardiology
SN - 0914-8922
IS - 2
ER -