Xu S, Nomura M, Kurokawa H, Ando T, Kimura M, Ishii J, Hasegawa H, Kondo T, Tadiki S, Qi P
Beijing No. 514 Hospital.
Chin Med J (Engl). 1995 Oct;108(10):743-9.
In order to investigate the relationship between restenosis and the morphology detected by coronary angioscopy (CASC) and introvascular ultrasound imaging (IVUS), 17 patients were detected by CASC and IVUS immediately and 3 months after percutaneous transluminal coronary angioscopy (PTCA). The results showed that the dilation index by IVUS (DIu) was significantly lower in restenosis patients than in non-restenosis patients (0.42 +/- 0.08 versus 0.78 +/- 0.16, P < 0.01) and that the elastic recoil (ER) was higher in restenosis patients than in non-restenosis patients (4.51 +/- 1.42 mm2 versus 1.63 +/- 1.20 mm2, P < 0.01), and that the elastic recoil rate (ERR) was also higher in restenosis patients than in non-restenosis patients (57.3 +/- 8.07% versus 21.80 +/- 16.84% P < 0.01), and that coronary dissection, atheromatous plaque and calcification as well as the colour of inner coronary artery had no relation with chronic restenosis. In conclusion, the elastic recoil is one of the important factors of chronic restenosis after PTCA.
为了研究再狭窄与冠状动脉血管镜检查（CASC）和血管内超声成像（IVUS）所检测到的形态之间的关系，对17例患者在经皮腔内冠状动脉血管成形术（PTCA）即刻及术后3个月进行了CASC和IVUS检查。结果显示，再狭窄患者的IVUS扩张指数（DIu）显著低于无再狭窄患者（0.42±0.08对0.78±0.16，P<0.01），再狭窄患者的弹性回缩（ER）高于无再狭窄患者（4.51±1.42mm²对1.63±1.20mm²，P<0.01），再狭窄患者的弹性回缩率（ERR）也高于无再狭窄患者（57.3±8.07%对21.80±16.84%，P<0.01），并且冠状动脉夹层、动脉粥样斑块、钙化以及冠状动脉内的颜色与慢性再狭窄无关。总之，弹性回缩是PTCA术后慢性再狭窄的重要因素之一。
