Tameo Michael N, Dougherty Matthew J, Calligaro Keith D
Section of Vascular Surgery, Pennsylvania Hospital, Philadelphia, PA, USA.
J Vasc Surg. 2008 Aug;48(2):351-4. doi: 10.1016/j.jvs.2008.03.054.
Stenosis of the cephalad internal carotid artery (ICA) can present a challenge, making it difficult to obtain a technically satisfying distal end point during endarterectomy. Surgical revision of distal defects can be difficult and yield unsatisfactory results. The purpose of this review is to evaluate the efficacy of intraoperative carotid stenting as an adjunct to endarterectomy to salvage technical defects identified at the cephalad ICA endarterectomy site.
Between January 2001 and February 2008, 14 patients were found to have technical defects located at the cephalad ICA endarterectomy site on intraoperative completion arteriogram. All defects were treated with adjunctive carotid stenting. Patient age ranged from 53 to 84 years (mean, 69 years). Indications for surgery were asymptomatic stenosis (nine), amaurosis fugax (two), and cerebrovascular accident (three). Operative time ranged from 2 to 5 hours (mean, 2.5 hours). Cervical block was used in all but two patients who received general anesthesia.
Technically satisfying results with stenting were achieved in all 14 patients. One patient suffered a perioperative transient ischemic attack; however, neurologic symptoms were noted before placement of the stent in this patient. There were no stent-related complications. All stents remained patent on duplex follow-up averaging 18 months.
Intraoperative salvage carotid stenting is an effective and safe adjunct to endarterectomy when unsatisfactory technical defects are identified at the cephalad ICA endarterectomy site.
颈内动脉(ICA)头端狭窄是一项挑战,在动脉内膜切除术中难以获得技术上令人满意的远端终点。对远端缺损进行手术修复可能困难且效果不理想。本综述的目的是评估术中颈动脉支架置入术作为动脉内膜切除术辅助手段的疗效,以挽救在ICA头端动脉内膜切除部位发现的技术缺陷。
2001年1月至2008年2月期间,14例患者在术中完成血管造影时被发现ICA头端动脉内膜切除部位存在技术缺陷。所有缺损均采用辅助颈动脉支架置入术治疗。患者年龄在53至84岁之间(平均69岁)。手术指征为无症状性狭窄(9例)、一过性黑矇(2例)和脑血管意外(3例)。手术时间为2至5小时(平均2.5小时)。除2例接受全身麻醉的患者外,其余患者均采用颈部阻滞麻醉。
14例患者均通过支架置入术获得了技术上令人满意的结果。1例患者围手术期发生短暂性脑缺血发作;然而,该患者在支架置入前即已出现神经症状。未发生与支架相关的并发症。在平均18个月的双功超声随访中,所有支架均保持通畅。
当在ICA头端动脉内膜切除部位发现技术缺陷不理想时,术中挽救性颈动脉支架置入术是动脉内膜切除术一种有效且安全的辅助手段。