Circulation:生物可吸收依维莫司洗脱血管支架(BVS)的长期预后

2019-12-13 QQY MedSci原创

生物可吸收依维莫司洗脱血管支架(BVS)与金属药物洗脱支架相似,可提供早期药物递送和机械支持,在约3年的时间内完成吸收,恢复血管结构和功能。ABSORB II期试验发现,BVS在1年的靶病变区衰竭(心源性死亡、靶血管心肌梗死或缺血驱动的靶病变区血管重建)不劣于钴铬依维莫司洗脱支架。在1-3年和3年的累积期间,BVS的副作用率(特别是靶血管心肌梗死和支架血栓形成)增加。现研究人员对BVS 5年后的临

生物可吸收依维莫司洗脱血管支架(BVS)与金属药物洗脱支架相似,可提供早期药物递送和机械支持,在约3年的时间内完成吸收,恢复血管结构和功能。

ABSORB II期试验发现,BVS在1年的靶病变区衰竭(心源性死亡、靶血管心肌梗死或缺血驱动的靶病变区血管重建)不劣于钴铬依维莫司洗脱支架。在1-3年和3年的累积期间,BVS的副作用率(特别是靶血管心肌梗死和支架血栓形成)增加。现研究人员对BVS 5年后的临床预后,包括3年后支架的吸收情况进行评估。

随访5年,BVS的靶病变区衰竭率、靶血管心肌梗死和支架血栓形成的发生率均高于依维莫司洗脱支架。但与前3年相比,第3年-第5年BVS相比于依维莫司洗脱支架的相对危险降低,特别是靶病变区衰竭(风险比:0.83 vs 1.35)和支架血栓形成(0.26 vs 3.23)。

在ABSORB III期试验中,与依维莫司洗脱支架相比,BVS后的5年累积副作用事件率增加。但BVS的高风险期结束于第3年,与支架完全吸收时间一致。

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