麝香保心丸治疗冠心病支架植入术后110例临床疗效观察

目的探讨麝香保心丸在治疗冠心病支架植入术后的临床疗效。方法选择冠心病支架植入术后到我科门诊就诊或住院的患者110例,随机分为治疗组55例和对照组55例,在常规药物治疗的基础上加用麝香保心丸,6和12个月分别进行对比观察。结果治疗组在6、12个月的总有效率高于对照组。结论冠心病支架植入术后患者,在常规药物治疗的基础上加用麝香保心丸,可以改善患者的症状及预后,减少心绞痛发作次数。     

替罗非班治疗支架辅助弹簧圈栓塞动脉瘤术中急性血栓形成

目的探讨动脉内灌注盐酸替罗非班在处理支架辅助弹簧圈栓塞颅内动脉瘤时术中急性血栓的有效性及安全性。方法收集2013年1月至2017年6月11例行颅内动脉瘤栓塞术中发生血栓患者,发生血栓后,均于微导管内靶向灌注盐酸替罗非班6ml,同时静脉泵注5ml/h,然后每5~10分钟造影观察血管溶通情况,直至血栓消失或血管开通。术后进行CT或MRI随访,观察有无脑梗塞或脑出血。结果 11例术中造影血管均完全再通,术后第1天、第7天及术后1月行头颅CT或MRI检查,均未发现与手术相关脑梗塞和脑出血的发生。结论支架辅助弹簧圈栓塞颅内动脉瘤时,术中出现急性血栓并发症时,经动脉靶向灌注盐酸替罗非班是一种安全、有效的方法。     

Finite element analysis and fatigue of stents

Understanding the behaviour of implantable medical devices is of obvious importance. The potential for failure of a medical device can often be associated with issues related to cyclic loading of the device, and material fatigue. Detailed finite element simulations to evaluate the fatigue of stents allow the engineer to assess potential failures. The engineer can then use the analysis results to modify the design and prevent failure, without making and testing numerous physical devices. Complete understanding of the mechanical behaviour of a stent provided by finite element analysis has the benefits of facilitating effective design, helping to reduce time to market and minimising the potential for unwanted failures.     

Dissected Aorta Repair Through Stent Implantation trial: Canadian results

Objectives

We describe the Canadian results of the Ascyrus Medical Dissection Stent (AMDS), a novel partially uncovered aortic arch hybrid graft implanted antegrade during hypothermic circulatory arrest to promote true lumen expansion and enhance aortic remodeling.