支架置入术后冠状动脉瘤样扩张的临床研究

Clinical study on coronary artery ectasia post stent implantation

目的分析冠脉支架置入术后冠状动脉瘤样扩张的临床特点。方法支架置入术后半年至2年复查冠脉造影的患者,筛选支架处动脉瘤样扩张患者,分析易患因素,并对患者进行随访。结果 1209例患者于支架术后复查冠脉造影,有11例发现发生了支架相关冠状动脉瘤样扩张。其中8例为男性(8/1209),9例为药物支架(9/1209),发生在前降支者6例(6/1209),右冠脉者5例(5/1209)。对发生动脉瘤患者进行随访,在平均18个月(9～25个月)的随访中,发生1例因心绞痛住院,1例冠状动脉瘤样扩张患者在16个月后再次复查造影,动脉瘤样扩张消失。结论支架置入术后冠状动脉瘤样扩张总体发生率低,远期预后良好。

Objective To investignte the risk factors and prognosis of coronary artery ectasia through analysis of the clinical characteristics of coronary artery ectasia after coronary stenting implantation. Methods Screening of ectasia were done in patients 6 months to 2 years after stent implantation by coronary artery angiography. The relative factors, location of stenting and ectasia, clinical outcomes were fouth analysed. Results Among the 1209 patients, 11 patients were found to have stent related coronary ectasia. Eight patients were male （8/1209）, while 9 patients implanted drug-eluting stents （9/1209）. Six ectasios occurred in the anterior descending coronary （6/1209） and 5 patients in the right coronary （5/ 1209）. In an average of 18 months （9 -25 months）following-up, 1 patient was hospitalized for angina pectoris. The ectasion disappeared in 1 patient on angiography at his 16-month follow up. Conclusions The occuronce of post stenting coronary artery ectasios is relatively low with satisfactory clinical prognosis.