Relationship Between Thickness of Calcium on Optical Coherence Tomography and Crack Formation After Balloon Dilatation in Calcified Plaque Requiring Rotational Atherectomy
Relationship Between Thickness of Calcium on Optical Coherence Tomography and Crack Formation After Balloon Dilatation in Calcified Plaque Requiring Rotational Atherectomy
复制标题
DOI：
10.1253/circj.cj-15-1059
复制
发表时间：
2016-06-01
影响因子：
3.3
通讯作者：
Kimura, Kazuo
中科院分区：
文献类型：
--
作者：
Maejima, Nobuhiko;Hibi, Kiyoshi;Kimura, Kazuo
背景：已知靶病变钙化会影响经皮冠状动脉介入治疗。我们评估了旋磨术（RA）和随后的球囊血管成形术对钙化冠状动脉病变的影响，使用光学相干断层扫描（OCT）。方法和结果：36例患者中的37个钙化病变接受了RA治疗，随后进行球囊血管成形术和支架植入术。在所有患者中，以1 mm的间隔分析RA后、球囊血管成形术后和支架植入后获得的连续OCT图像。测量RA后钙成分的弧度和厚度。球囊血管成形术后评估钙裂纹的形成。共分析了625个节段。球囊血管成形术后钙裂纹的形成与更大的支架横截面积（7.38 +/- 1.92 vs. 7.13 +/- 1.68 mm（2），P=0.035）以及更大的管腔增益（3.89 +/- 1.53 vs. 3.40 +/- 1.46 mm（2），P
Background: Target lesion calcification is known to influence percutaneous coronary intervention. We evaluated the effects of rotational atherectomy (RA) and subsequent balloon angioplasty on calcified coronary lesions using optical coherence tomography (OCT).Methods and Results: Thirty-seven calcified lesions in 36 patients were treated with RA followed by balloon angioplasty and stent implantation. In all patients, serial OCT images obtained after RA, after balloon angioplasty, and after stent implantation were analyzed at 1-mm intervals. The arc and thickness of the calcium component were measured after RA. The formation of calcium cracks was assessed after balloon angioplasty. A total of 625 segments were analyzed. The formation of calcium crack after balloon angioplasty was associated with greater stent crosssectional area (7.38 +/- 1.92 vs. 7.13 +/- 1.68 mm(2), P=0.035) as well as greater lumen gain (3.89 +/- 1.53 vs. 3.40 +/- 1.46 mm(2), P