Stanford B型主动脉夹层腔内修复术后覆膜支架远端再发夹层临床诊治分析

目的探讨Stanford B型主动脉夹层腔内修复术后覆膜支架远端再发夹层的机制与诊治。方法回顾性分析自2002年4月至2014年12月沈阳军区总医院心血管内科收治的Stanford B型主动脉夹层中行主动脉腔内修复术患者随访期间发生覆膜支架远端再发夹层的临床特点,同时分析患者发生再次主动脉夹层的影响因素以及诊疗方案。结果 10例主动脉覆膜支架远端再发夹层,7例应用直筒(近端与远端直径无落差)覆膜支架,3例应用近端与远端直径落差均为2 mm的覆膜支架,支架长度均在150 mm以内。9例再次行腔内修复术,1例患者拒绝再次行主动脉腔内修复术,行药物保守治疗。其中1例患者2次出现支架远端再发夹层,2次均行主动脉腔内修复术。所有手术患者均手术成功,无并发症,随访期间2例患者出现脑卒中,分别发生于再次腔内修复术后1个月、6个月,无截瘫和死亡事件。结论注重支架长度及直径落差选择对预防动脉夹层腔内修复术后覆膜支架远端再发夹层有临床意义。再次介入治疗可有效治疗Stanford B型主动脉夹层腔内修复术后覆膜支架远端再发夹层,再次治疗并发症少,安全性高。     

腔内隔绝术治疗112例Stanford B型主动脉夹层动脉瘤患者疗效观察

目的评价主动脉夹层腔内隔绝术治疗Stanford B型主动脉夹层动脉瘤的院内及长期临床疗效。方法选择行主动脉腔内隔绝术治疗Stanford B型主动脉夹层患者112例。经股动脉切开置入覆膜支架封堵胸主动脉破裂口,置入后冠状动脉造影检查证实疗效,术后随访平均(39±18)个月。分析其临床特点及疗效。结果手术成功112例,共置入覆膜支架119枚。左锁骨下动脉完全被封闭8例,合并严重狭窄病变的冠心病患者完成PCI 16例,主动脉腔内隔绝术后综合征19例,术后1个月内夹层破裂死亡3例。随访3个月,所有患者内膜破裂口封闭,胸降主动脉和腹主动脉真腔扩大,假腔内血栓形成,支架位置、形态正常。术后明显残余内漏10例,3个月自行封闭。术后6个月,再发升主动脉夹层3例,其中行升主动脉外科手术1例,截瘫1例,胃癌多器官转移死亡1例。术后1年迟发性内漏1例。结论腔内隔绝术治疗Stanford B型主动脉夹层动脉瘤的院内及长期疗效满意。     

Stanford B型主动脉夹层腔内修复处理研究进展

主动脉夹层(aortic dissection,AD) 是临床一种死亡率极高的心血管危急重症，是由于主动脉中层破裂,血液通过主动脉内膜裂口,进入主动脉壁,造成正常动脉壁的分离形成血管内假腔。根据夹层病变累及范围，可分为Stanford A、B型，病变累及近端主动脉者称为A型 ；病变范围仅涉及左锁骨下动脉开口以远降主动脉称为 B 型。胸主动脉腔内修复术（throacic endovascular aortic repair，TEVAR）作为治疗 Stanford B 型主动脉夹层的重要选择，已得到全世界的认可。胸主动脉腔内修复术（throacic endovascular aortic repair，TEVAR）作为治疗 Stanford B 型主动脉夹层的重要选择，已得到全世界的认可。随着微创治疗方式和器具的创新，越来越多的弓部病变可采用微创腔内治疗，近年来，“烟囱”技术、“开窗”技术、分支支架技术的发展使得TEVAR治疗累及主动脉弓部病变成为可能。本文就几种常用处理弓部病变腔内技术做一综述。     

覆膜支架治疗37例Stanford B型胸主动脉夹层的疗效分析

目的:分析覆膜支架腔内修复治疗Stanford B型胸主动脉夹层的临床疗效。方法:对2015年1月至2016年12月收治的37例因Stanford B型胸主动脉夹层行覆膜支架腔内修复术患者的病历资料进行回顾性分析,其中男性29例,女性8例。术前诊断依据临床表现及CT血管造影(CTA),术中造影再次评估病变部位及解剖位置,切开股动脉,行覆膜内支架置入,封堵原发破口,手术成功后再次造影检查。结果:37例患者共置入支架37枚,全部获得成功。术中造影见少量内漏4例,3例经支架近端球囊扩张后内漏消失,1例无需特殊处理。患者临床症状均明显改善,降主动脉及腹主动脉真腔明显扩大。结论:采用覆膜支架腔内修复术治疗Stanford B型胸主动脉夹层安全、创伤小、恢复快,临床效果显著。     

“两段式”覆膜支架置入术个性化治疗Stanford B型主动脉夹层的效果

目的 探讨应用“两段式”覆膜支架置入术个性化治疗Stanford B型主动脉夹层的可行性及临床效果.方法 回顾性分析2012年1月至2013年5月在北京安贞医院应用“两段式”覆膜支架置入术治疗Stanford B型主动脉夹层的56例患者的临床资料.其中,急性期11例(19.5％),亚急性期37例(66.1％),慢性期8例(14.4％);病变累及范围在肾动脉水平以近22例(39.3％),在肾动脉水平以远34例(60.7％);病变长度为(226±13) mm.术中常规胸、腹主动脉造影,测量近端锚定区主动脉直径、远端锚定区真腔直径及两者之间的长度;“第1段”以近端锚定区为标准,常规置入支架;“第2段”以选定的远端锚定区为标准,顺序置入自主研发的大锥度覆膜支架,两枚支架重叠不少于30 mm.术中和术后观察介入治疗的效果和并发症.结果 患者均完成手术,置入支架长度为(197.6 ±20.3)mm,锥形跨度为(7.5 ± 1.8)mm,近端扩大率为(12.8±3.4)％,远端扩大率为(11.2±4.1)％,支架远端与主动脉走行的夹角为(2.3±1.3)°.随访(10.0±4.0)个月,主动脉CT血管成像显示支架近、远端主动脉直径及支架远端与主动脉走行的夹角与术中测量值差异无统计学意义(P均＞0.05),总体假腔血栓形成比例为98.2％(55/56),支架段假腔血栓形成比例为82.1％(46/56).发生并发症2例(3.6％),其中截瘫1例,远端支架贴附不良1例.结论 “两段式”覆膜支架置入术能够针对不同Stanford B型主动脉夹层病变特点,以远端锚定区为标准,制定个性化腔内修复治疗方案,方法可行,近期疗效满意.     

腔内隔绝术治疗主动脉夹层动脉瘤107例分析

目的 探讨应用覆膜支架腔内隔绝术治疗主动脉夹层动脉瘤的方法和效果.方法 对107例(男88例,女19例,年龄28～83岁)主动脉夹层动脉瘤腔内隔绝术患者的临床资料进行回顾性分析.术前采用CT血管成像(computerized tomography angiography,CTA)、经胸心脏超声(transthoracic echocardiography,TTE)、磁共振血管成像(magnetic resonance aniography,MRA)等技术对主动脉夹层动脉瘤进行评估.术中穿刺左肱动脉行主动脉造影了解破口的位置及撕裂的范围,在数字减影血管造影(digital subtraction angiography,DSA)监视下经股动脉将覆膜支架送入胸降主动脉封闭夹层破口.结果 107例成功进行了主动脉夹层动脉瘤腔内隔绝术.术后主动脉造影证实夹层裂口完全封闭或内漏明显减少,无中转开胸手术.术后随访1～48个月,术后1个月3例死亡.104例行CTA复查,术后3个月,所有患者内膜破裂口封闭,胸降主动脉真腔扩大,假腔内血栓形成,支架位置、形态正常.术后6个月,1例再发生升主动脉夹层,置入一枚支架后后假腔消失.术后1年,主动脉均未见病变.结论 覆膜支架腔内隔绝术是治疗主动脉夹层动脉瘤的安全、有效的方法,近期疗效好.手术死亡率和并发症发生率低,手术成功率和生存率高.     

超声心动图引导下置人覆膜支架治疗Stanford B型主动脉夹层

目的 创建应用超声心动图引导下置入覆膜支架治疗Stanford B型主动脉夹层的新方法,探讨其可行性、安全性及疗效.方法 5例经CT证实的Stanford B型主动脉夹层患者在术前应用超声心动图判断病变,并根据测量参数选择覆膜支架型号.术中以超声心动图(包括经食管和经胸超声心动图)实时、动态地引导和监测,精确定位后置人覆膜支架封闭主动脉夹层破口.术后以经胸超声心动图随访,评估置入覆膜支架的疗效.结果 5例患者应用超声心动图引导置入覆膜支架治疗Stanford B型主动脉夹层,均成功置入真腔.1例患者主动脉夹层的远端有一小破口未覆盖.术后随访3个月,未发现覆膜支架移位及新生内漏,未发现主动脉管壁穿孔、肾功能衰竭、截瘫等严重并发症.与术前2d比较,术后1个月和3个月左心室射血分数(中位数分别为59.9％、67.4％、68.1％)和左心室短轴缩短率(中位数分别为31.4％、33.7％、39.1％)均显著增高(均P＜0.05).结论 创建了临床治疗Stanford B型主动脉夹层的新方法.超声心动图引导下置入覆膜支架治疗B型主动脉夹层安全、有效、并发症少,近期效果满意,中、远期结果需进一步观察.     

联合远端限制性支架腔内修复治疗Stanford B型主动脉夹层

目的：探讨联合远端限制性支架腔内修复治疗Stanford B型主动脉夹层的近期疗效.方法：回顾性分析2012年5月至2013年4月间,新疆医科大学第一附属医院,采用联合限制性支架治疗28例Stanford B型主动脉夹层患者的临床资料,分析远端限制性支架在stanford B型主动脉夹层主动脉腔内修复术（endovascular aortic repair,EVAR）术中的疗效.结果：远端限制性支架治疗Stanford B型主动脉夹层28例,其中男性25例,女性3例.年龄30～73岁,平均（49.80±12.71）岁.急性期治疗22例（均为急性复杂性夹层）,慢性期治疗6例.主体支架直径为30～36 mm,长度150 ～ 200 mm;限制性支架直径为24 ～ 28 mm,长度为60～ 80 mm,其中覆膜支架23例,大口径裸支架5例.技术成功率100％,术后即刻观察Ⅰ型内漏3例,无截瘫发生.术后随访3～ 14个月,平均7个月,3例有明确Ⅰ型内漏的患者,术后3个月随访主动脉CTA检查显示内漏消失,1例患者术后第11个月发现肾衰竭,5例患者左侧肢体发凉,2例患者头晕,无脑卒中、截瘫及死亡.结论：联合限制性支架治疗Stanford B型主动脉夹层术较传统腔内修复术近期疗效较好,远期疗效有待于进一步观察.     

国产覆膜支架治疗Stanford B型主动脉夹层

目的评价国产主动脉覆膜支架治疗Stanford B型主动脉夹层患者的院内及中期临床疗效。方法应用国产覆膜支架行主动脉腔内隔绝术治疗B型主动脉夹层患者34例,经股动脉置入覆膜支架封堵胸主动脉破裂口,置入Aegis或Hercules国产支架后,造影检查证实疗效。术后平均随访(19±17)个月。结果34例手术均获成功。32例置入1枚支架,2例分别置入主体和短支架各1枚,平均支架直径(33.5±3.5)mm,平均支架长度(96.5±17.6)mm。1例术后2h死于夹层破裂。3例术后存在原发性内漏。2例肾功能不全。出院后随访,2例分别于术后5个月和9个月发生继发性内漏,1例1年时升主动脉再次发现夹层,1例6个月后发生截瘫,2例死亡。结论国产主动脉覆膜支架治疗Stanford B型主动脉夹层患者具有良好的临床疗效。     

DeBakeyⅢ型主动脉夹层21例的临床诊治

目的 探讨主动脉腔内隔绝术（endovascular aortic repair,EVAR）治疗DeBakeyⅢ型主动脉夹层的技术方法及疗效.方法 对近3年江西省人民医收治的21例DeBakeyⅢ型主动脉夹层患者的临床资料进行回顾性分析.19例患者均行左锁骨下动脉穿刺,行升主动脉造影,了解主动脉真假腔、夹层裂口及其与重要血管分支的位置关系.切开右侧股动脉置入覆膜血管内支架,封堵原发破口,置入支架后重复造影检查以观察真假腔血流变化、主动脉分支供血的情况.结果 19例患者支架置入定位准确,术后即刻造影显示真腔血流恢复正常.手术成功率100％,无截瘫及瘤体破裂等严重并发症,无围术期死亡.所有患者术后3～6个月复查增强计算机断层扫描,假腔不再显影,支架通畅,无扭曲、移位.结论 EVAR治疗DeBakeyⅢ型主动脉夹层是安全有效的,但远期效果有待进一步观察.     

Intimal dehiscence in the abdominal aorta following balloon fenestration for type B dissection.

PURPOSE: To report a case of intimal dehiscence associated with endovascular intervention in patients with aortic dissection. CASE REPORT: A 65-year-old man presented with a type B dissection extending to the level of the common iliac arteries. Two Talent stent-grafts were placed in the descending thoracic aorta to close the entry point, but 2 lumens remained. Three days later, abdominal pain prompted another imaging session, which demonstrated a large cylindrical filling defect in the abdominal aorta ("tube-in-tube") assumed to be a partially or completely dehisced intima. Fenestration marginally improved flow to the visceral vessels, and the patient improved clinically. However, 4 days later, recurrent ischemic symptoms prompted surgery; a complete dehiscence of the aortic intima starting at the descending aorta extended to the distal abdominal aorta. The aorta was resected, but the patient died from disseminated intravascular coagulation. CONCLUSIONS: Intimal flap dehiscence associated with an endovascular procedure in the management of aortic dissection is an uncommon complication. Early detection and prompt surgical intervention of such a complication could save the patient's life. Endovascular procedures are unlikely to resolve the hemodynamic problem caused by a dehisced, distally migrated, collapsed intima.     

Application of thoracic endovascular dissecting aneurysm repair for secondary type B aortic dissection

Type A aortic dissection is an emergency condition that requires immediate surgery. Graft replacement of the ascending aorta is the main treatment for this disorder. However, after ascending aortic replacement, the dissection flap may progress to the distal side (to the descending aorta) and a new intimal tear may develop. In this study, we report on a 66-year-old woman who had a history of ascending aortic replacement six months earlier. She was admitted to hospital with a new onset of back pain. Computed tomography revealed a new dissection tear originating from the distal side of the subclavian artery orifice. Thoracic endovascular dissecting aneurysm repair (TEVDAR) was carried out on the patient. Additional complications were not observed in the postoperative period. Complete cure was provided and the patient was discharged on the fourth day after the operation. TEVDAR may be safe and effective in preventing progression of the aortic flap and the formation of a new intimal tear in type A aortic dissections. Optional hybrid interventions could ameliorate the outcomes in aortic dissection cases.     

An experimental model of Stanford type B aortic dissection with intravenous epinephrine injection

The aim of this study was to create an experimental model of aortic dissection (AD) with a long-term patent false lumen to develop new treatments for Stanford type B aortic dissection. Sixteen adult beagle dogs (weight 14–18 kg) were used. After exposure and partially clamping, the descending aorta was cut through the adventitia to one-third of the depth of the tunica media. The aortic wall was divided into two layers by raspatory. Then half the circumference of the inner layer was cut transversely. All of the proximal layers and the distal outer layers were anastomosed together. Epinephrine was immediately used to expand the false lumen, and the effect was terminated using nitroglycerin when necessary. All dogs underwent both digital subtraction angiography (DSA) and computed tomography angiography (CTA) immediately after and 1 week and 1 month after surgery. The dogs were followed up at 1 day, 3 months, 1 year, and 2 years. The surgery was successful in 12 dogs. Dissection formation was observed immediately after epinephrine administration and confirmed by DSA and CTA. Our results showed typical characteristics of AD, such as a tear, septum, and true and false lumens. This is an easy and feasible way of developing a Stanford type B AD model by intravenous injection of epinephrine. In this canine model of AD, the false lumen has excellent long-term patency and the dissection plane is histologically similar to that in human AD. This model may contribute to the development of new treatments for Stanford type B AD.     

Intraoperative echocardiography for diagnosis and treatment of aortic dissection. Utility of color flow mapping for surgical decision making in acute stage.

In the past eight years until July 1992, 92 patients were admitted in the acute state of aortic dissection within two weeks from the onset of symptoms. 41 were diagnosed as Stanford type A and 51 were type B by transthoracic and transesophageal echography, computer tomography, and surgery. Sensitivity of transesophageal echography to detect the intimal flap and the false lumen was 97.6% in patients with Stanford type A and 100% in patients with Stanford type B. The surgical decision making has been mostly depending on the transesophageal echographic diagnosis. When the intimal flap was detected in the ascending aorta (Stanford type A) surgery was performed in emergency regardless of any evidence of rupture, cardiac tamponade, and severe aortic regurgitation. When the aortic dissection was detected only in the descending aorta (Stanford type B) the main course of therapeutic strategy in our institute was medical treatment. Surgery was performed on 37 patients of type A and nine patients of type B with mortality of 18.9% and 55.5% respectively. Four patients of type A and 42 patients of type B were treated medically with a mortality of 75.0% and 2.2% respectively. The relatively large leakages from the anastomosis of the aortic clamp site were repaired secondarily in two patients, and fenestration of the superior mesenteric artery was performed on one patient due to ischemia of the small intestine depending on the intraoperative direct scanning of color flow mapping. Coronary artery involvement of dissection was strongly suspected in two patients by intraoperative transesophageal echography and aortocoronary bypass grafting was performed on these patients. Perfusion problems was encountered in five of 37 patients with type A aortic dissection (13.5%) during cardiopulmonary bypass. Intraoperative transesophageal echography could clearly detect the hemodynamic changes in the descending aorta resulting from inadequate perfusion which was useful for the management of perfusion control during cardiopulmonary bypass. Secondary repair of the aortic arch was required due to ischemia of the aortic arch vessels in two patients after the primary surgery. The extension of the dissection into the aortic arch vessels can be promptly diagnosed with the combination of transesophageal echography and transcutaneous echography. In conclusion, transesophageal Doppler echography is the most rapid diagnostic tool for decision making in acute aortic dissection, and intraoperative transesophageal echo can provide useful information to resolve the perfusion difficulties during cardiopulmonary bypass.(ABSTRACT TRUNCATED AT 400 WORDS)     

Transesophageal Doppler echocardiography in the diagnosis of dissecting aortic aneurysm

Transesophageal Doppler echocardiography (TEDE) was performed in three patients with proven or suspected DeBakey type I and type III aortic dissection. Case 1: A 66-year-old woman, with DeBakey type I aortic dissection. Clear images of a widened dissected aorta and an intimal flap were obtained in both the ascending and descending aorta, including the aortic arch. The site of an entry into the false lumen was identified by the defect of the intimal flap and the pulsatile entry flow through it. The reentry into the true lumen was also identified near the orifice of the celiac trunk. In this case, the observation was performed using this technique during the operation; i.e., replacement of the ascending aorta with an artificial graft. Case 2: A 77-year-old man, DeBakey type III aortic dissection. The study was performed after surgery which consisted of replacement of the descending aorta with an artificial graft. TEDE provided clear images of the artificial graft, the aorta, and their boundaries. The remaining intimal flap was clearly confirmed. Case 3: An 80-year-old man, DeBakey type III aortic dissection. In this case, though abdominal echography suggested aortic dissection, angiography and X-ray CT failed to facilitate the diagnosis. Only TEDE confirmed the diagnosis. The abnormal flow via the entry directing toward the false lumen was clearly demonstrated on the color Doppler images. We therefore conclude that TEDE is a useful and reliable means of diagnosing dissecting aortic aneurysm.     

Rapid progression of discrete type A intramural hematoma: prevention of a "procedure-related" complication by intraoperative transesophageal echocardiography.

PURPOSE: To report a case illustrating the utility of transesophageal echocardiography (TEE) before planned stent-graft placement for chronic type B aortic dissection. CASE REPORT: A 64-year-old man with acute aortic syndrome and an 8-year-old interposition graft in the distal aortic arch for acute type B dissection was referred for dissection of the descending thoracic aorta down to the aortic bifurcation; the false lumen was dilated to 65 mm and was partially thrombosed. The ascending aorta showed discrete, eccentric, 4-mm wall thickening that was not considered clinically significant. Stent-graft closure of the entry tear in the proximal descending thoracic aorta was elected. However, as the endovascular procedure was about to commence, TEE showed striking eccentric thickening of the aortic wall of up to 18 mm. The endovascular procedure was stopped, as it was decided to urgently replace the ascending aorta. The next day, the patient underwent successful ascending aortic replacement and simultaneous antegrade stent-graft implantation over the descending thoracic aortic entry tear via the open aortic arch. The postoperative course was uncomplicated, and the patient was discharged 19 days after surgery. He remains well at 6 months after the procedure. CONCLUSIONS: Our case demonstrates that dissection of the ascending aorta may occur not only due to endograft-induced intimal injury, but may also occur due to underlying but undiagnosed or underestimated disease of the ascending aorta or arch. Besides procedural guidance, intraoperative TEE is a useful tool to detect such disease to avoid subsequent "procedure-related" complications.     

Visualization of thoracic dissecting aortic aneurysm by transesophageal Doppler color flow mapping

Real-time color flow mapping by two-dimensional Doppler has now come into widespread use. However, its application via conventional transcutaneous approaches to dissecting aortic aneurysm has some limitations where visualization of the descending aorta is concerned. Its transesophageal approach to this disorder has hitherto remained unreported except by the authors. Transesophageal Doppler color flow mapping has been performed in twelve patients for diagnosis of dissecting aortic aneurysm, and the clinical significance of this method was evaluated. The system used for transesophageal color flow mapping was an Aloka SSD-880 ultrasound scanner with a 5 MHz probe. In all cases, the entire thoracic aorta except for the upper ascending aorta was visualized and both, real-time flow dynamics and structural information, were ascertained. Differentiation of the type of dissection, identification of the entry, and differentiation of the true and false lumina were performed in all cases. Information concerning the reentry was gained in seven cases (58%); aortic regurgitation was graded in three cases, in two of which prolapse of the intimal flap was observed. In five cases, aortography was needed in order to delineate the involvement of aortic branches in the dissection; and in the other seven cases, transesophageal Doppler information was sufficient. In four cases who were operated, the postoperative state was well evaluated. Transesophageal Doppler color flow mapping was found to be a useful method for visualization of the whole thoracic aorta apart from the upper ascending section, and for precise evaluation of the structure and hemodynamics of dissecting aortic aneurysms.     

Emergent Repair of a Complex Dissecting Aneurysm in the Thoracic Aorta

Endovascular treatment of complex thoracic pathologic conditions involving the aortic arch can often be appropriate and safe; however, minimally invasive procedures are not always feasible, especially in emergent cases. We report the case of a 78-year-old woman who emergently presented in hemorrhagic shock with a ruptured chronic dissecting aneurysm that involved the aortic arch. Eight years earlier, she had undergone aortic valve replacement and plication of the ascending aorta, which was complicated a day later by Stanford type B dissection, malperfusion, and ischemia that required an axillobifemoral bypass. At the current admission, we successfully treated her surgically through a left thoracotomy, using moderate hypothermic extracorporeal circulation and advanced organ-protection methods. We discuss the surgical indications and our operative strategy in relation to open surgical repair versus endovascular treatment in patients with complex conditions.Key words: Aneurysm, dissecting/radiography/surgery; aortic aneurysm, thoracic/radiography/surgery; aortic diseases/surgery; aortic rupture/surgery; treatment outcome; vascular surgical proceduresPathologic involvement of the aortic arch and the presence of dissection are 2 major issues in descending thoracic aortic repair, particularly in emergent settings of aneurysmal rupture. A patient''s comorbidities and older age may contraindicate deep hypothermic circulatory arrest; however, a thoracoabdominal dissection could lead to malperfusion if left-side heart bypass is considered for organ protection. Endovascular or hybrid surgery is a less invasive approach in complex cases; however, a good aneurysmal neck and adequate vascular access for the device are mandatory for technical success. We present the case of an elderly woman with comorbidities who required emergent repair of a complex dissecting thoracic aneurysm.     

胸主动脉钝性外伤的腔内修复治疗

目的 探讨腔内修复技术在治疗胸主动脉钝性外伤中的可行性和安全性.方法 回顾分析2010年2月至2013年12月期间7例胸主动脉钝性外伤患者的临床资料.术前CTA及术中造影评估病变,回顾术中技术成功率,死亡及截瘫等主要并发症的发生率.术后CTA随访明确有无内漏、支架移位等情况.结果 所有创伤都累及主动脉峡部,包括Stanford B型夹层1例、降主动脉假性动脉瘤6例.全部患者均接受覆膜支架腔内修复治疗,其中1例先行左-右锁骨下动脉转流术.术中6例部分或全部覆盖左锁骨下动脉开口.所有手术患者均获得技术成功,无死亡及截瘫发生.术后随访时间2～28个月,无左上肢缺血症状及神经系统并发症,支架无内漏及移位.结论 腔内修复治疗胸主动脉夹层安全、有效,可行性高.