Neuroform颅内支架辅助栓塞宽颈颅内动脉瘤的初步经验

目的　报道我科使用Neuroform支架辅助可脱式弹簧圈栓塞宽颈脑动脉瘤的初步经验。方法　 2 2例 2 4枚宽颈颅内动脉瘤采用Neuroform支架和弹簧圈进行栓塞 ,其中急性破裂动脉瘤 19枚、未破裂动脉瘤 5枚。结果　支架均成功地释放 ,支架置入后的造影未发现有瘤内造影剂滞留的血流动力学改变。 10 0 %闭塞动脉瘤 18枚 ,90 %以上闭塞 5枚 ,1枚伴发的未破裂小型宽颈动脉瘤在支架置入后微导管无法超选 ,载瘤动脉均通畅。有 2枚动脉瘤虽有支架阻挡 ,但仍有部分弹簧圈畔进入载瘤动脉。所有患者没有出现与支架置入有关的症状性缺血性并发症。 17例造影随访中 ,有 1例在 3个月复查时发现再通 ,进行 2次栓塞完全闭塞动脉瘤 ,其余未见复发 ,结论　Neuroform颅内支架使用安全有效 ,适合于宽颈颅内动脉瘤的支架辅助弹簧圈栓塞 ,特别适合于迂曲的脑血管 ;其径向支撑力较差 ,在输送微导管时应防止其移位 ;其支架网眼较大 ,对血流动力学改变不明显 ,致密填塞是重要的 ,在输送弹簧圈时仍应防止弹簧圈畔进入载瘤动脉 ;术前、术后抗血小板药物的应用以及术后严格的系列造影随访是必要的。     

Neuroform自膨式支架结合弹簧圈栓塞颅内宽颈动脉瘤

目的 探讨Neuroform自膨式支架结合弹簧圈治疗颅内宽颈动脉瘤的安全性、术中并发症、近中期疗效和应用前景.方法 采用Neuroform支架结合弹簧圈栓塞治疗25例27枚颅内宽颈动脉瘤.动脉瘤位于颈内动脉海绵窦段3枚,眼动脉1枚,后交通动脉18枚,前交通动脉2枚,大脑中动脉M1段1枚,大脑中动脉分义部1枚,基底动脉干1枚.其巾2例患者为多发动脉瘤,绝对宽颈(瘤颈>4 mm)动脉瘤21枚,相对宽颈6枚,瘤颈/瘤体均大于0.7.结果 4枚采用NeuroformⅡ代自膨式支架结合弹簧圈栓塞治疗,其余均采用NeuroformⅢ代支架结合弹簧罔栓塞治疗.25例26枚支架均成功到位释放,1例多发动脉瘤患者置入2枚支架.7枚动脉瘤完全栓塞(100%),9枚几乎完全栓寒(95%～99%),11枚不完全栓塞(95%以下).2例术中出血;2例术中支架内血栓形成,其中1例术后遗留肢体偏瘫,另1例死亡;1例术中弹簧圈尾端从支架网孔突入颈内动脉,术后出现一过性脑缺血表现,其余患者均恢复良好出院.临床随访24例,随访期1～32个月,平均10.8个月.3例术后3～6个月血管造影随访,其中1例后交通动脉瘤患者同侧大脑前动脉闭塞,大脑中动脉主干血栓形成;另2例原有瘤颈残留者无变化.结论 在栓塞颅内宽颈动脉瘤时应用Neurolform自膨式支架结合弹簧圈技术,使弹簧圈无法突入载瘤动脉,可提高柃塞致密度,安全、疗效好.     

颅内自膨胀支架结合弹簧圈治疗脑动脉瘤

目的　报道采用自膨胀颅内专用支架 (Neuroform支架 )结合弹簧圈栓塞治疗颅内宽颈动脉瘤 ,初步探讨该支架的特点、短期疗效及应用前景。方法　采用Neuroform支架结合弹簧圈栓塞治疗 32例 34枚颅内宽颈动脉瘤。颈内动脉海绵窦段 3例 ,眼动脉 3例 ,后交通动脉 8例 ,前交通动脉 3例 ,大脑中动脉分叉部 5例 ,椎动脉 6例 ,基底动脉顶端 1例 ,基底动脉干 2例 ,大脑前动脉A3段 1例 ,多发动脉瘤 2例。通过Renegade微导管释放Neuroform支架覆盖动脉瘤瘤颈 ,预先将另一微导管置入动脉瘤腔或将微导管通过支架网孔以弹簧圈栓塞动脉瘤。结果　 31例 34个支架成功到位释放 ,1例基底动脉顶端动脉瘤因支架无法通过狭窄的大脑后动脉而改用BX支架。 3例 1次各置入 2枚支架。 2 4例致密栓塞 ,6例瘤颈残留 ,2例部分栓塞。 1例术中发生支架内血栓 ,死亡 1例 ,其余患者均恢复良好出院。临床随访 30例 ,随访期 1～ 6个月 ,平均 4 .7个月 ,无再出血及血栓栓塞症状发生。 1 1例术后 3个月血管造影随访 :7例致密栓塞的动脉瘤均未显影 ;4例瘤颈残留者 ,2例无变化 ;2例原有瘤颈残留未再显影。结论　Neuroform支架技术上容易操控 ,顺应性好 ,安全性高 ,可以到达颅内较远端的血管 ,大大扩展了支架技术治疗颅内血管病变的应用范围 ,近期     

Neuroform3支架在急诊血管内栓塞破裂性颅内宽颈动脉瘤中的应用

目的 评价急诊血管内Neuroform3支架辅助下可解脱弹簧圈栓塞破裂的颅内宽颈动脉瘤的疗效和中期随访.方法 回顾性分析最近18个月急诊介入栓塞治疗的破裂出血性颅内动脉瘤48例,其中26例在72 h内实施Neuroform3支架辅助下弹簧圈栓塞术.其中3例动脉瘤位于大脑前动脉A1段,3例位于大脑中动脉M1和M2段,13例位于后交通,2例位于颈内动脉眼动脉段,2例位于基底动脉顶端,2例位于椎动脉V2和V4段,1例位于小脑后下动脉;3例在第1枚弹簧圈释放后植入支架,1例在第2枚弹簧圈释放后植入支架,2例在第4枚弹簧圈释放后植入支架,10例在第1枚弹簧圈无法在瘤腔内成篮后植入支架,其余10例先植入支架再进行弹簧圈栓塞,所有微导管均通过支架网眼进入动脉瘤.结果 所有病例均成功释放支架(100%),覆盖了瘤颈,同期行弹簧圈填塞动脉瘤.术后即刻造影显示动脉瘤完全栓塞23例(88.5%),次全栓塞3例(11.5%);术中1例支架轻度回撤,无血栓事件和动脉瘤再破裂出血发生,所有患者均恢复良好出院.栓塞术后随访到23例,至少复查1次脑血管造影,最多复查3次;完全致密栓塞14例(60.8%)动脉瘤均末显影,6例瘤颈少许显影病例中3例(11.5%)存在血栓形成,次全栓塞1例(3.3%)瘤体再通,另外2例始终稳定,所有病例载瘤动脉通畅,狭窄2例(7.7%),临床上无任何症状,术后所有患者均无再出血.结论 急症血管内应用Neuroform3支架辅助弹簧圈栓塞破裂出血的颅内宽颈动脉瘤足方便的、安全的和有效的.     

颅内宽颈动脉瘤的血管内治疗33例分析

目的总结应用颅内支架或球囊辅助技术治疗颅内宽颈动脉瘤的体会。方法应用颅内支架或球囊辅助瘤颈成形术结合Microplex弹簧圈栓塞治疗颅内破裂宽颈动脉瘤33例。动脉瘤位于前交通动脉8例,后交通动脉19例,大脑中动脉3例,基底动脉顶端3例。结果以支架辅助治疗的19例动脉瘤中13例完全致密填塞,4例填塞90％以上,2例大部填塞（70％～90％）。以球囊辅助治疗的14例动脉瘤中9例完全致密填塞,3例填塞90％以上,2例大部填塞。结论支架或球囊辅助治疗颅内宽颈动脉瘤是安全、有效的方法,两种方法各有优缺点,应根据动脉瘤的具体情况来选择采用支架或球囊治疗。     

Neuroform支架辅助栓塞基底动脉宽颈动脉瘤

目的 探讨应用自膨胀颅内专用支架(Neuroform支架)与弹簧圈栓塞相结合治疗基底动脉宽颈动脉瘤技术的临床应用价值.方法 采用Neuroform支架与弹簧圈结合栓塞治疗30例基底动脉宽颈动脉瘤.其中基底动脉末端动脉瘤16例,基底动脉中段9例,基底动脉起始部5例.结果 30例中,25例致密栓塞,5例部分栓塞.仅2例术中发生支架内血栓,其余患者均恢复良好出院.临床随访20例,随访期3～6个月,无血栓栓塞症状发生.22例术后3个月血管造影随访:19例致密栓塞的动脉瘤均末显影,载瘤动脉通畅;3例动脉瘤颈有残留.结论 Neuroform颅内支架使用方便、安全,适用于颅内基底动脉宽颈动脉瘤的支架辅助弹簧圈栓塞,特别适用于迂曲的脑血管.     

颅内破裂微小动脉瘤介入栓塞治疗技术探讨

目的 探讨介入栓塞术治疗颅内破裂微小动脉瘤技术要点,并评估此技术的疗效和安全性.方法 回顾性分析2008年1月至2013年6月采用介入栓塞术治疗的30例共36枚颅内破裂微小动脉瘤的临床、影像学、操作技术和随访资料,其中24枚动脉瘤接受单纯弹簧圈填塞,5枚接受球囊辅助弹簧圈栓塞,7枚接受支架辅助弹簧圈栓塞.结果 术中出现动脉瘤破裂出血2例,死亡1例.术后即刻造影显示,36枚颅内微小动脉瘤中22枚(61.1％)达到致密填塞,14枚(38.9％)非致密填塞.25枚动脉瘤获得3～24个月随访,22枚完全闭塞,1枚留有残颈无变化;患者无再出血,未出现弹簧圈移位和载瘤动脉血栓栓塞事件.结论 采用介入栓塞术治疗颅内破裂微小动脉瘤是安全有效的,操作中不必刻意追求致密填塞.     

Neuroform支架或球囊辅助弹簧圈栓塞颅内宽颈动脉瘤的对比研究

目的:通过对比分析207例Neuroform支架或球囊辅助弹簧圈栓塞的颅内宽颈动脉瘤,为临床选用Neuroform支架或球囊辅助弹簧圈栓塞颅内宽颈动脉瘤提供参考.方法:207例颅内宽颈动脉瘤中,129例采用Neuroform支架辅助弹簧圈栓塞,78例采用球囊辅助弹簧圈栓塞.术后3个月-5年进行改良Rankin量表评分....     

Solitaire AB支架在辅助栓塞颅内宽颈动脉瘤中的临床应用

目的评价Solitaire AB支架在辅助栓塞颅内宽颈动脉瘤中的临床应用价值。方法应用Solitaire AB支架治疗颅内宽颈动脉瘤25例,其中后交通动脉瘤15枚,眼动脉段动脉瘤4枚,颈内动脉海绵窦段动脉瘤1枚,大脑中动脉瘤1枚,椎动脉动脉瘤4枚。结果 25例中,完全栓塞22例,瘤颈残留1例,部分栓塞2例。术中动脉瘤破裂1例,术后脑积水行脑脊液分流术1例,弹簧圈移位1例。随访未有再出血病例。造影随访12例,复发1例。结论应用Solitaire AB支架在辅助栓塞颅内宽颈动脉瘤具有较高的临床价值,值得临床推广。     

自膨胀式支架联合可解脱弹簧圈栓塞治疗宽颈颅内动脉瘤的效果

目的探讨应用自膨胀式颅内专用支架（Neuroform支架）与可解脱微弹簧圈（GDC）栓塞相结合治疗宽颈颅内动脉瘤技术的临床应用价值。方法采用Neuroform支架与GDC结合栓塞治疗30例基底动脉宽颈动脉瘤（基底动脉末端动脉瘤16例、基底动脉千9例、基底动脉起始部5例），30例后交通宽颈动脉瘤，5例椎动脉宽颈动脉瘤。通过微导管释放Neuroform支架覆盖动脉瘤瘤颈，将另一微导管通过支架网孔进入动脉瘤腔以GDC栓塞动脉瘤。结果全部病例采用Neuroform支架结合GDC栓塞，支架均顺利通过载瘤动脉，覆盖瘤颈，其中60例致密栓塞，5例部分栓塞。2例术中发生支架内血栓。全部患者均恢复良好出院。42例术后3～6个月血管造影随访，其中39例致街栓塞的动脉瘤均未显影，载瘤动脉通畅；3例动脉瘤颈有残留。结论Neuroform颅内支架使用方便、安全，适用于颅内宽颈动脉瘤的支架辅助GDC栓塞。     

Neuroform3支架辅助弹簧圈栓塞脑宽颈动脉瘤的长期随访疗效

目的评价Neuroform3支架辅助弹簧圈栓塞脑宽颈动脉瘤的长期随访疗效。方法2007年至2011年应用Neuroform3支架辅助弹簧圈栓塞118例脑动脉瘤,其中86例为破裂出血性动脉瘤,32例为未破裂动脉瘤,76例在出血72 h内实施了治疗。术后对患者进行脑血管造影和临床随访。结果支架准确释放115例(97.5%),因为血管扭曲和痉挛失败植入支架1例,支架移位2例。实施单纯支架植入2例,采用微导管经支架网眼技术66例,支架后释放技术49例。术后即刻造影示动脉瘤完全栓塞87例(74.4%),次全栓塞30例(25.6%)。术中无动脉瘤破裂出血事件发生,术后症状性脑梗死3例,无症状性脑梗死5例。术后随访6～60个月,平均26.8个月,共随访到105例,复查1～5次脑血管造影,完全栓塞99例(84.6%),次全栓塞病例中11例(36.7%)存在血栓形成;9例(7.7%)瘤体复发,其中5例进行了再次治疗达到完全栓塞,术后所有患者均无再出血,除3例外,所有患者支架内无明显狭窄。结论 Neuroform3支架辅助弹簧圈栓塞脑宽颈动脉瘤安全、有效,仍需更长期的随访和多中心研究。     

Treatment of a wide-necked aneurysm of the anterior cerebral artery using two Enterprise stents in “Y”-configuration stenting technique and coil embolization: a technical note

The endovascular treatment of wide-necked aneurysms remains challenging. The “Y”-stenting technique has been used for stent-assisted coil embolization of wide-necked bifurcation aneurysms. So far, this technique has been described for aneurysms of the basilar apex or the middle cerebral artery bifurcation and only for open stent systems using the Neuroform stent. We report a 52-year-old woman with recurrence of a wide-necked aneurysm of the anterior cerebral artery that was successfully retreated by stent-assisted coiling using the “Y”-stenting technique with the Enterprise stent system.     

Neuroform EZ支架治疗颅内动脉瘤安全有效性单中心观察

目的探讨Neuroform EZ支架治疗颅内动脉瘤的安全性和有效性。方法回顾性分析2016年7月至2018年7月解放军总医院第一医学中心采用Neuroform EZ支架辅助栓塞治疗的39例(41枚)颅内动脉瘤患者临床资料。根据术后即刻和复查DSA造影,评价Neuroform EZ支架在辅助动脉瘤栓塞中的安全有效性。结果 41枚动脉瘤中破裂13枚(31.7%),未破裂28枚(68.3%)。共应用Neuroform EZ支架47枚,均准确释放(100%)。其中单枚支架辅助栓塞35枚,双支架辅助栓塞6枚(双支架套叠4枚,Y形支架2枚)。栓塞后即刻mRaymond分级1级19枚(46.3%),2级7枚(17.0%),3a级11个枚(26.8%),3b级4枚(9.6%),其中破裂、未破裂动脉瘤分别为1级10枚(76.9%)、9枚(32.1%)。术中发生血栓事件1枚(2.4%)。术后6个月复查造影显示,mRaymond分级改善13枚,变差2枚,发现载瘤动脉再狭窄1枚(2.4%)。结论 Neuroform ZE支架辅助弹簧圈栓塞颅内动脉瘤安全有效,仍需多中心研究和远期随访验证。     

Stent-assisted coil embolization of intracranial wide-necked aneurysms

The endovascular treatment of cerebral aneurysms with coils poses significant technical challenges, particularly with respect to wide-necked aneurysms. We present the results of our initial experiences in using a stent for endovascular treatment of aneurysms, with an emphasis on potential applications, technical aspects, and associated complications. Twenty-three wide-necked aneurysms from 22 patients were treated during the 13-month study period. Seven patients presented with subarachnoid hemorrhage. Aneurysms were located at the internal carotid artery (n=14), the vertebral artery (n=3), the basilar artery (n=5), and the middle cerebral artery (n=1). A Neuroform stent² was used for stent-assisted procedures. Premedication with antithrombotic agents was available for unruptured cases. Postprocedural antithrombotic medication was prescribed for all patients. Nineteen aneurysms were primarily stented, followed by coil placement. For five of these aneurysms, stenting was performed subsequent to failure of an attempt to frame with an initial coil. Stenting for the remaining four aneurysms was performed as a rescue procedure to prevent the migration of previously placed coils. Complete occlusion was obtained in ten aneurysms, nearly complete occlusion (95% or more occluded) in 11 aneurysms, and partial occlusion (less than 95% occluded) in one aneurysm. In one aneurysm, we failed to navigate the microcatheter into the aneurysmal sac through the interstices of the stent. Stent thrombosis was noted during the procedure in one patient. Hemorrhagic complication on the 25th day after the procedure was noted in one patient. No procedure-related complications were observed during the procedure or during follow-up in the remaining 20 patients, including seven patients who did not receive antithrombotic agents prior to endovascular treatment owing to recent subarachnoid hemorrhage. To overcome the technical limitation in the coiling of wide-necked aneurysms, stent-assisted coil embolization may be a technically feasible and relatively safe method, even though longer periods of follow-up are required.     

Solitaire AB支架辅助弹簧圈栓塞治疗颅内宽颈动脉瘤36例

目的 探讨Solitaire AB支架辅助弹簧圈栓塞治疗颅内宽颈动脉瘤的经验和疗效.方法 2010年5月至2011年3月使用Solitaire AB支架辅助弹簧圈栓塞治疗颅内宽颈动脉瘤患者36例39个动脉瘤,其中动脉瘤破裂出血15例.动脉瘤位于前交通动脉1个,颈内动脉后交通段13个,眼动脉段13个,海绵窦段4个,椎动...     

Stent-assisted coil embolization of wide-necked renal artery bifurcation aneurysms

PURPOSE: To report preliminary results of stent-assisted coil embolization in the treatment of wide-necked renal artery bifurcation aneurysms. MATERIALS AND METHODS: Four patients (three women, one man; mean age, 54 years; range, 49-67 y) with wide-necked renal artery aneurysms were treated with dedicated neurointerventional self-expanding nitinol stent-assisted coil embolization during a 2-year period. The stent was delivered over the neck of the aneurysm, after which the aneurysm was filled with detachable coils through a microcatheter placed into the aneurysm through the stent mesh. RESULTS: Stent delivery and coil embolization was successfully completed in all cases. Complete aneurysm occlusion without coil protrusion or arterial flow compromise was obtained in all patients. A small peripheral subsegmental renal infarction necessitating no therapy was registered in one patient on postembolization computed tomography. At follow-up angiography 1 year after embolization, no aneurysm recanalization or arterial obstruction was registered. CONCLUSIONS: Our preliminary experience indicates that stent-assisted coil embolization is technically feasible and effective for the exclusion of challenging renal artery bifurcation aneurysms without the sacrifice of any branch arteries.