- 作者：Edit D贸sa ; Bal谩zs Nemes ; Viktor B茅rczi ; P谩l Kaposi Nov谩k ; Tam谩s Mirko Paukovits ; Hunor Sarkadi ; K谩lm谩n H眉ttl
- 刊名：Journal of Vascular Surgery
- 出版年：March, 2014
- 年：2014
- 卷：59
- 期：3
- 页码：781-785
- 全文大小：102 K
Objective
Stenting is the preferred, minimally invasive treatment for innominate artery (IA) stenosis or occlusion. Stent fractures in the IA have not been assessed in larger cohorts. In this retrospective study, we examined the frequency and risk factors of IA stent fractures.Methods
The final analysis included 32 patients (15 women; mean age, 59.4聽卤 12.0聽years) with 32 balloon-expandable stents (2000 to 2009). In 2010, the patients were asked to come back for a fluoroscopic examination of the implanted stents. Stent fractures and their relationship to atherosclerotic risk factors, lesion characteristics, postprocedural symptoms, and in-stent restenosis were analyzed. Fisher exact test and univariate Cox regression analysis were used in the statistical evaluation.
Results
Lesions were >20聽mm in 14 patients (44%) or heavily calcified in 13 (41%). The mean follow-up time was 33.4聽卤 21.0聽months. Postprocedural symptoms were noted in nine patients (28%). Significant restenosis was detected in 22% of the implanted stents, and 11 stent fractures (34%) were found. The prevalence of heavily calcified lesions, postprocedural symptoms, and in-stent restenosis did not differ significantly between groups with and without fracture. Long lesions were associated with an increased incidence of stent fracture (hazard ratio, 5.09; 95% confidence interval, 1.33-19.48; P聽= .017). No correlation was observed between stent fractures and old age (鈮?0聽years), female gender, smoking, hypertension, hyperlipidemia, or diabetes mellitus.
Conclusions
IA stent fractures are common but seem to have no effect on symptoms and in-stent restenosis rates.