Division of Vascular Surgery and Endovascular Therapy, Johns Hopkins Bayview Medical Center, Johns Hopkins Hospital, Baltimore, Maryland.
Division of Vascular Surgery and Endovascular Therapy, Johns Hopkins Bayview Medical Center, Johns Hopkins Hospital, Baltimore, Maryland2Editor, JAMA Surgery.
JAMA Surg. 2014 Dec;149(12):1314-8. doi: 10.1001/jamasurg.2014.1762.
While the Carotid Revascularization Endarterectomy Versus Stenting Trial (CREST) has been widely accepted as a landmark trial establishing an equivalent risk of major adverse events following carotid endarterectomy (CEA) or carotid artery stenting (CAS), the applicability of these findings to single centers has been questioned owing to the rigid selection criteria for investigators in the study. Although refuted by the findings of a subsequent study, a substudy of CREST established a higher periprocedural stroke rate for CAS when the surgeon was a vascular surgeon.
To present our 30-day results of stroke, death, myocardial infarction, and composite major adverse events to determine if a single vascular surgeon's outcomes at our hospital are consistent with the results of CREST.
DESIGN, SETTING, AND PARTICIPANTS: A retrospective analysis of patients with high-grade carotid artery stenosis treated with CEA or CAS by a vascular surgeon at our institution from September 9, 2005, through December 17, 2012, was performed. A χ2 analysis was used to compare the incidence of specific high-risk patient characteristics in each group. The Fisher exact test was used to compare the risks of stroke, death, myocardial infarction, and composite major adverse events between CEA and CAS. These results were then compared with those reported in CREST.
A total of 182 cases (94 CAS and 88 CEA) performed by a single vascular surgeon were included for analysis. While in CREST the periprocedural risk of stroke was higher following CAS (4.1% vs 2.3%, P = .01) and the risk of myocardial infarction was higher following CEA (2.3% vs 1.1%, P = .03), there was no significant difference in the incidence of these outcomes between the 2 treatment modalities in our study. When compared with CREST, our rates of myocardial infarction, stroke, death, and composite adverse events (CEA, 4.5% vs 3.4%; P = .79; CAS, 5.2% vs 4.3%; P >.99) were no different.
Similar to CREST, the 30-day risk of composite major adverse events was equivalent for the 2 treatment modalities. We attribute our comparable incidence of perioperative stroke with CAS and CEA to improved patient selection. We excluded most patients older than 80 years and those with complex anatomy from consideration for CAS. Our results confirm those of CREST and demonstrate that both CEA and CAS can be performed safely by a vascular surgeon in properly selected patients.
尽管颈动脉血管重建内膜切除术与支架置入术试验(CREST)已被广泛接受为确立颈动脉内膜切除术(CEA)或颈动脉支架置入术(CAS)后主要不良事件风险相当的标志性试验,但由于研究中对研究者的严格选择标准,这些发现对单一中心的适用性受到了质疑。尽管随后的一项研究结果驳斥了这一观点,但 CREST 的一项亚研究发现,当外科医生是血管外科医生时,CAS 的围手术期卒中发生率更高。
报告我们 30 天的卒中、死亡、心肌梗死和复合主要不良事件的结果,以确定我们医院的单一血管外科医生的结果是否与 CREST 的结果一致。
设计、地点和参与者:对 2005 年 9 月 9 日至 2012 年 12 月 17 日期间,由我们机构的一名血管外科医生治疗的患有重度颈动脉狭窄的患者进行了回顾性分析。采用 χ2 分析比较每组特定高危患者特征的发生率。采用 Fisher 确切概率法比较 CEA 和 CAS 之间卒中、死亡、心肌梗死和复合主要不良事件的风险。然后将这些结果与 CREST 报告的结果进行比较。
共纳入 182 例(94 例 CAS 和 88 例 CEA),均由一名血管外科医生进行治疗。虽然在 CREST 中,CAS 后的围手术期卒中风险更高(4.1% vs 2.3%,P=0.01),CEA 后的心肌梗死风险更高(2.3% vs 1.1%,P=0.03),但我们的研究中两种治疗方式的这些结果之间没有显著差异。与 CREST 相比,我们的心肌梗死、卒中、死亡和复合不良事件发生率(CEA,4.5% vs 3.4%;P=0.79;CAS,5.2% vs 4.3%;P>.99)无差异。
与 CREST 相似,两种治疗方式的 30 天复合主要不良事件风险相当。我们将 CAS 和 CEA 围手术期卒中发生率的差异归因于患者选择的改善。我们将大多数年龄大于 80 岁和具有复杂解剖结构的患者排除在 CAS 考虑之外。我们的结果证实了 CREST 的结果,并表明在适当选择的患者中,CEA 和 CAS 均可由血管外科医生安全进行。