支架型人工血管治疗降主动脉假性动脉瘤

目的探讨支架型人工血管介入治疗降主动脉假性动脉瘤的可行性及疗效。方法2001年9月至2004年12月,行支架型人工血管治疗降主动脉假性动脉瘤8例,其中男性7例,女性1例,年龄22~65岁,平均(45.4±15.1)岁。病因4例为外伤,1例为动脉硬化,3例病因不明。瘤体直径(3.9±1.3)cm。4例为急诊手术,4例择期手术。结果6例采用全身麻醉,2例采用硬膜外麻醉。支架型人工血管均顺利植入。术后30d内无死亡。1例有近端内漏。术后脑梗塞1例。术后随诊2~30个月,平均(9.3±10.7)个月,术后4个月死亡1例,病因为内漏导至动脉瘤破裂。1例于5个月后因再发假性动脉瘤,接受再次支架型血管植入术,于2次手术后2个月死亡。随诊死亡2例,死亡率25%。结论支架型人工血管是治疗主动脉假性动脉瘤的有效方法,中远期效果还有待进一步观察。     

17例DeBakeyⅢ型主动脉夹层的腔内修复治疗

目的:探讨17例DeBakeyⅢ型主动脉夹层腔内修复治疗的经验和临床效果.方法:17例急性胸背痛患者经CT动脉造影(CTA)确诊为DeBakey Ⅲ型主动脉夹层.依据术前CTA影像资料和数字减影血管造影(DSA)结果确认夹层破口位置,选择合适的带膜人工血管支架,在DSA监视下施行带膜人工血管支架移植术.术后1个月和术后6个月～1年行CTA检查,观察手术疗效以及有无内漏、支架移位和塌陷等术后并发症.结果:17手术成功,1 例术后3 d夹层进展为A型,3个月后死亡.无术后截瘫,无内漏、支架移位和塌陷发生.结论:腔内修复术治疗DeBakey Ⅲ型主动脉夹层创伤小,严重并发症少,近期和中期疗效满意.     

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。     

食管超声引导覆膜支架介入治疗胸主动脉夹层

目的　评价应用食管超声经股动脉植入覆膜支架治疗DeBakeyⅢb型主动脉夹层动脉瘤的安全性和效果。方法　 8例男性患者均经磁共振血管造影 (MRA)证实为DeBakeyⅢb型主动脉夹层。平均年龄 55 8± 10 2 (2 8～ 71)岁。在食管超声引导和透视监测下 ,经股动脉切开植入覆膜支架封闭近端或近、远端主动脉夹层破口。并评价术后即刻和随访结果。结果　 8例患者共成功植入覆膜支架 11枚 ,支架平均直径为 2 9 4(2 2～ 3 8)mm。术后即刻 3例有极少量内漏 ,2例有微量烟雾状分流。 1例在球囊扩张后升主动脉出现局限夹层。术后平均住院时间为 9d。随访 8例 ,平均随访时间 10 5(6～ 18)个月 ,4例残余分流消失 ,无发生支架移位或新生内漏者。升主动脉局限夹层患者于术后 11个月行MRA复查示病情稳定未再发展。 1例于术后 1年复查MRA仍有极少量内漏 ,后因咯血突发死亡。结论　联合应用食管超声 ,经股动脉植入覆膜支架治疗DeBakeyⅢb型主动脉夹层是一项有前景的方法 ,而且创伤小、安全有效 ,近中期效果满意 ,远期结果需进一步观察     

用腔内隔绝术治疗B型主动脉夹层动脉瘤46例

目的评价用主动脉夹层动脉瘤腔内隔绝术治疗StanfordB型主动脉夹层动脉瘤的近、中期临床疗效。方法2002年5月至2006年9月,行主动脉腔内隔绝术治疗B型主动脉夹层46例。其中男36例,女10例;年龄62±18岁。46例均经股动脉切开置入覆膜支架封堵胸主动脉破裂口,置入后造影检查证实疗效,术后随访1~52个月,平均17±16个月,分析其临床特点及疗效。结果住院期间及随访30d内无患者死亡;发生主动脉腔内隔绝术后综合征11例;2例患者左锁骨下动脉被封闭;5例发生内漏,术后3个月时其中4例内漏自行封闭。随访3个月时,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。术后半年1例发生截瘫,原因不明。术后1年1例出现迟发性内漏;1例升主动脉发现夹层,未行外科手术。随访期间3例死亡,4年生存率89.3%。结论用主动脉夹层动脉瘤腔内隔绝术治疗B型主动脉夹层动脉瘤的近、中期疗效满意。     

急性Stanford A型主动脉夹层再手术治疗分析

摘要 目的：探讨急性A型主动脉夹层再手术治疗的效果,总结其外科治疗经验。方法 ：回顾分析2007年1月-2017年5月16例Stanford A型主动脉夹层再手术患者的临床资料。首次手术包括升主动脉替换术1例,Wheat手术 (升主动脉+主动脉瓣替换术)1例,升主动脉+次全弓替换+主动脉瓣成形术1例,升主动脉替换+孙氏手术（全弓替换及降主动脉支架象鼻人工血管置入）2例,升主动脉替换+孙氏手术+主动脉窦部成形术4例,Bentall手术(带瓣人工血管升主动脉替换替换术)3例,Bentall+孙氏手术4例。再次手术方式包括孙氏手术5例,全主动脉置换术1例,全胸腹主动脉替换2例,主动脉瓣周漏修补术1例,主动脉根部吻合口漏修补术2例（其中1例并行主动脉根部假性动脉瘤切除术）,主动脉覆膜支架腔内隔绝术7例。结果：1例患者在围术期死亡,术后并发症共8例。其中再次开胸2例,伤口感染2例,低心排综合症1例,神经系统并发症1例,肺部感染2例,以上并发症均于出院前治愈。结论：急性A型主动脉夹层再手术临床效果满意,因弓部病变再次行孙氏手术亦安全、有效;孙氏术后远端主动脉病变行常温非体外循环下全胸腹主动脉替换术亦是一种安全、有效的外科策略。     

29例主动脉夹层动脉瘤治疗分析

目的总结29例主动脉夹层动脉瘤外科治疗经验。方法29例患者中,DeBakey分型,Ⅰ型16例,Ⅱ型4例,Ⅲ型9例。21例手术治疗,其中6例行Bentall术,2例行Wheat术,5例行升主动脉置换(同时主动脉瓣成形4例),1例行胸主动脉置换,7例置入支撑型人工血管;8例不接受手术。结果手术死亡2例,其中1例为胸主动脉置换术后并发吻合口出血死亡,1例为支撑型人工血管置入后内漏瘤破裂猝死。非手术8例中,4例死亡,4例转慢性化趋稳定出院。结论对主动脉夹层动脉瘤应积极手术,Ⅰ、Ⅱ型可急诊手术,Ⅲ型可置入支撑型人工血管。早诊断,快速急诊手术是抢救成功的关键。     

带膜血管内支架置入治疗B型主动脉夹层

目的:探讨带膜血管内支架置入治疗B型主动脉夹层的效果。方法:B型主动脉夹层5例,切开股动脉置入带膜血管内支架封堵原发破口后重复造影检查。结果:均成功置入支架,置入的人造血管支架使降主动脉和腹主动脉真腔扩大,明显改善降主动脉及分支血管血流。术后4例患者肾功能恢复正常,1例内漏患者术后随诊,7个月后消失,夹层近端假腔内均有血栓形成。结论:带膜血管内支架置入是B型主动脉夹层有效的治疗途径,远期效果还有待进一步观察。     

“烟囱”技术在胸主动脉夹层腔内修复术中的应用分析

目的 探讨“烟囱”支架技术在近端锚定区长度不足的胸主动脉夹层的主动脉腔内修复术治疗中的应用.方法 回顾性观察2012年8月至2013年9月广东省人民医院17例近端锚定区长度不足的胸主动脉夹层患者使用“烟囱”技术进行主动脉腔内修复术治疗的临床资料.结果 男16例,女1例,Stanford B型主动脉夹层16例,Stanford B型主动脉夹层合并腹主动脉瘤1例.手术成功率为100％,支架释放后即时血管造影显示破口封堵完全,“烟囱”支架血流正常.随访3-16个月,中位时间12个月,无术后死亡患者.随访期间,患者出现左足乏力1例、头晕1例、胸闷痛2例、Ⅰ型内漏2例.无严重神经系统及脏器缺血并发症发生.术后主动脉计算机断层扫描血管造影（CTA）未见移位、明显内漏及“烟囱支架”闭塞等异常.结论 对于近端锚定区长度不足的胸主动脉夹层的患者,使用“烟囱支架技术”进行主动脉腔内修复是安全、有效的治疗方法.     

带膜血管内支架置入治疗胸主动脉夹层

目的　总结带膜血管内支架置入治疗DebakeyⅢ型主动脉夹层临床经验。方法　胸主动脉夹层 4 9例 ,男 4 4例 ,女 5例 ,平均年龄 (5 1 6± 1 8)岁。经CT增强扫描或磁共振成像确诊。切开右或左侧股动脉置入带膜血管内支架 ,封堵原发破口。置入后重复造影检查。随访行胸部X线平片与电子束CT检查。结果　支架置入全部成功 ,术后即刻造影 4 0例无内漏 ,9例见少量内漏。降主动脉及腹主动脉真腔均明显扩大 ,远端降主动脉及分支供血均有不同程度的改善。 1例因支架置入位置过高 ,行外科升主动脉 左颈总动脉 左锁骨下动脉旁路移植术。 1例术后死于中毒性休克。术后随访 :降主动脉及腹主动脉真腔扩大 ,术后造影 9例有内漏者 ,无加重 ,4例患者近端夹层动脉瘤消失 ,余者夹层近端假腔内均有血栓形成。结论　带膜血管内支架置入治疗胸主动脉夹层近期疗效满意 ,远期疗效有待于进一步观察。     

覆膜支架腔内治疗急性胸主动脉综合征

目的 评价覆膜支架腔内治疗急性胸主动脉综合征的有效性和安全性。方法 2001年5月至2005年12月应用覆膜支架治疗57例急性胸主动脉综合征患者,其中急性主动脉B型夹层45例,穿透性粥样硬化性溃疡（PAU）或假性动脉瘤9例,创伤性胸主动脉瘤3例。建立数据库,分析其临床特点、疗效及随访结果。结果 57例患者覆膜支架置入技术成功率100％。5例有近端内漏,1例术中出现升主动脉夹层,未予特殊处理,随访结果良好;1例术后7天出现升主动脉夹层并发心包填塞死亡。5例PAU或主动脉夹层合并冠心病患者,在应用覆膜支架成功完全封闭破口后立即行冠状动脉介入治疗成功。1例出现术后一过性双下肢无力,经静脉滴注山莨菪碱和甘露醇2天后痊愈。1例支架覆盖左锁骨下动脉开口导致左椎动脉缺血,嗜睡2天后自行好转。术后重症监护病房时间1～8（平均3．5）天,术后平均住院10天。术后30天内死亡2例,1例死于升主动脉夹层破裂,1例死于急性肾衰竭。术后30天内死亡率3．5％。术后平均随访（25．3±13．1）（13—55）个月。1例于术后3个月死于大咯血,1例死因不明。1例因近端内漏行二次腔内修复术。5例患者因降主动脉覆膜支架远端再发现破口,行二次腔内修复术。术后截瘫发生率为0,无支架移位、狭窄等并发症。术后住院及随访期内总死亡率为7．0％。与传统手术相比,腔内治疗急性胸主动脉综合征具有创伤小、严重并发症少、住院时间较短的优势。结论 覆膜支架是治疗急性胸主动脉综合征优良且有效的方法,也可用于外科手术高风险患者,近中期随访结果良好,远期结果有待于进一步随访。     

Endovascular stent-graft repair of aortic dissection

Between October 2000 and January 2002, 9 consecutive male patients with subacute or chronic aortic dissection underwent stent-graft placement. The indication for surgery was continuous pain or aneurysm development. One patient had a type A dissecting aortic aneurysm with a primary tear in the ascending thoracic aorta; the other 8 had type B dissection. Placement of an endovascular stent-graft was technically successful in 8 patients, and one underwent an open procedure for abdominal aortic fenestration. The entry site was sealed and the false lumen disappeared in 8 cases, and thrombosis of the false lumen was obtained. Rupture of an iliac artery dissecting aneurysm occurred in one patient 2 days after stent-graft placement; abdominal aortic fenestration with prosthetic replacement of the distal abdominal aorta was performed. One patient died of myocardial infarction 3 days after the stent-graft procedure. During a mean follow-up period of 7 months (1-16 months), one patient died of acute myocardial infarction at 11 months. It was concluded on the basis of these short-term results that endovascular repair of aortic dissection is a promising treatment, and abdominal aortic fenestration is a useful adjuvant procedure.     

主动脉弓置换加"象鼻"支架手术治疗Stanford A型主动脉夹层

目的 探讨采用升主动脉及全弓置换加“象鼻”支架手术治疗StanfordA型主动脉夹层的临床意义。方法2010年5月至2011年10月,应用升主动脉及全弓置换加“象鼻”支架手术治疗StanfordA型主动脉夹层患者16例,男性12例,女性4例,平均年龄47（30-67）岁;其中急性主动脉夹层12例、慢性夹层4例,均在深低温停循环、低流量选择性脑灌注下手术。结果急诊手术12例,择期手术4例。行主动脉弓置换及“象鼻”支架术2例,升主动脉及全主动脉弓置换1例,升主动脉及全主动脉弓置换加“象鼻”支架手术13例,其中同期行Bentall术2例、主动脉根部成形术8例。心肌阻断时间59-137（104-31）min,选择性脑灌注时间17-57（29-11）min。术后肾功能衰竭2例,1例经血液透析治疗后肾功能恢复,另1例因多器官功能衰竭死亡。15例患者出院,随访1个月至1．5年,1例患者于术后约1个月双下肢肌肉坏死,在外院施行了截肢手术,8例患者不同程度恢复工作,无晚期死亡或再次手术病例。结论升主动脉及全弓置换加“象鼻”支架手术是治疗StanfordA型主动脉夹层安全、有效的方法。     

Midterm results of aortic diameter outcomes after thoracic stent-graft implantation for aortic dissection: a multicenter study.

PURPOSE: To evaluate aortic diameter outcomes after stent-graft implantation for aortic dissection in the descending thoracic aorta. METHODS: Fifty patients with type A dissection after ascending aortic surgery (n = 10), type B dissection (n = 34), or intramural hematoma (n = 6) underwent stent-graft repair in 3 centers. Thrombosis and aortic diameter were analyzed by computed tomographic angiography at different levels of the aorta before stent-graft implantation, at discharge, and at follow-up. Measurements were standardized. RESULTS: In all, 67 stent-grafts were implanted for acute (n = 18) and chronic (n = 32) dissection. Stent-graft placement was successfully performed with high technical success (100%) despite 4 major complications (iliac thrombosis in 2 cases, aortic rupture, and a type A dissection) in 3 (6%) patients. Complete thrombosis of the thoracic false lumen was observed in 42% and 63% of cases at discharge and at follow-up (mean 15 months), respectively. At follow-up, the diameters of the entire aorta (mean 5 mm, p < 0.05) and the false lumen (mean 11 mm, p < 0.0001) decreased. Diameters of the abdominal aorta remained stable in association with persistent false lumen perfusion at this level. Aortic diameter results were better in the subgroup of patients with intramural hematoma compared to patients with Marfan syndrome. Three early deaths unrelated to the stent-graft procedure occurred; 2 patients with partial thrombosis of the false lumen died in follow-up secondary to aortic diameter growth. CONCLUSION: Complete thrombosis of the false lumen by stent-graft coverage of the entry tear results in decreased diameter of the entire aorta. In patients with partial thrombosis of the false lumen, the aneurysm continues to enlarge.     

Natural history of a dilated ascending aorta after aortic valve replacement.

BACKGROUND: Little information is available regarding the incidence of aortic dissection or rupture in patients with a dilated ascending aorta after aortic valve replacement (AVR). The present clinical study aimed to demonstrate the incidence of aortic complications after AVR in patients with a dilated ascending aorta and to clarify those risk factors associated with the progression of a dilated ascending aorta or late aortic events. METHODS AND RESULTS: A total of 35 patients with a dilated ascending aorta at the time of AVR were enrolled. A dilated ascending aorta was defined as 40 mm or greater in diameter by preoperative computed tomography or operative findings. The baseline ascending aorta diameter ranged from 40 to 55 mm with a mean of 44.8+/-4.4 mm. There was a high frequency of bicuspid valve disease in patients with a dilated ascending aorta (57%). The mean follow-up interval was 8.1+/-3.5 years (range: 2.3-13). Aortic events occurred in 5 patients (aortic dissection in 1, rupture in 2, reoperation in 2) during the follow-up. One aortic dissection developed at a baseline aortic size of 42 mm, whereas 2 aortic ruptures occurred at baseline aortic sizes of 47 mm and 50 mm. There was no statistically significant univariate association between any of the patient clinical characteristics and late aortic events or ascending aortic progression. CONCLUSION: Although the clinical course of patients with a dilated ascending aorta is unpredictable, aortic events may occur even in patients with a baseline aortic diameter of <50 mm. Therefore, preventive aortic surgery at the time of AVR should be considered to prevent aortic dissection or rupture in patients with an even slightly dilated ascending aorta with a diameter of 40 to 50 mm, unless the patient has a high operative risk or older age.     

胸主动脉腔内修复术治疗Stanford B型主动脉夹层

目的 总结胸主动脉腔内修复术（thoracic endovascular aortic repair,TEVAR）治疗Stanford B型主动脉夹层的临床经验.方法 回顾性分析134例Stanford B型主动脉夹层患者的临床资料,分析并发症发生的原因及随访近、远期效果.结果 术前死亡4例,未手术1例,施行TEVAR 129例,手术操作均成功,部分封堵左锁骨下动脉27例（20.9％）,完全封闭左锁骨下动脉12例（9.3％）;Ⅰ型内漏13例（10.1％）,夹层逆剥为Stanford A型1例,低氧血症23例（17.8％）,肾功能衰竭需血液滤过9例（7.1％）,术后精神症状37例（28.7％）,脑梗死3例.随访2个月～5年,随访110例,随访率85.7％,1例术后1年和1.5年出现支架远端夹层,两次手术植入覆膜支架,部分封闭了腹腔干动脉,1例术后2个月时因肠梗阻在外院行手术治疗,1例术后4年时支架远端发生夹层破裂死亡,1例术后3个月突然死亡.Ⅰ型内漏消失11例,持续存在2例.结论 急诊TEVAR治疗Stanford B型主动脉夹层安全、可靠,近期效果良好,加强并发症的防治,可进一步改善临床效果.     

Penetrating aortic ulcer: Clinical and angiographic characteristics

Penetrating aortic ulcer, an atherosclerotic lesion with ulceration that penetrates the internal elastic lamina and allows hematoma formation within the aortic wall, is rarely considered in the differential diagnosis of patients with sudden onset of severe chest or back pain. It has been suggested that it is a pathologic process that involves elderly hypertensive patients with severe atherosclerosis and rarely has been observed in the ascending aorta. To determine the characteristics of this process, 11 clinical, 2 hemodynamic, 3 angiographic, and 4 surgical variables were compared between 10 consecutive patients with penetrating aortic ulcers and 20 matched patients with classic acute aortic dissection. Clinical and hemodynamic variables were similar in the two compared groups. In the group of patients with penetrating ulcer, mean age was 58±6 years, previous hypertension was observed in six patients and the penetrating ulcer was located in the ascending aorta in six cases. Compared with patients with aortic dissection, more angiographic projections were necessary to obtain the diagnosis in the group of patients with penetrating ulcer (2.4±0.8 vs 1.7±0.6;p<0.05). In addition, the presence of angiographic aortic valve regurgitation was only observed in the group of patients with acute dissection (60% vs 0%;p<0.01). Severe atherosclerosis was not present angiographically in any patient with penetrating ulcer. In conclusion, penetrating aortic ulcer can also affect middle-age patients without severe atherosclerosis and is frequently observed in the ascending aorta. Its form of presentation and clinical characteristics are similar to classic aortic dissection. The lack of confirmatory evidence of dissection with suggestive clinical history should raise the possibility of penetrating aortic ulcer.     

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.     

老年主动脉夹层的外科治疗

目的:探讨老年主动脉夹层的外科治疗策略、疗效及预后。方法:回顾性分析本院外科治疗35例老年主动脉夹层患者的临床资料。患者年龄60～77岁,平均(64.9±4.6)岁;男性28例,女性7例;按Debakey分型,Ⅰ型14例,Ⅱ型1例,Ⅲ型20例。结果:全组死亡3例,死亡率8.6%。行降主动脉腔内修复手术18例,杂交手术(即先行主动脉头臂血管转流术,同期行主动脉夹层腔内覆膜支架置入术)3例,均无死亡。开胸手术14例,包括升主动脉置换术2例(同期行主动脉瓣置换1例),升主动脉+半弓置换5例(同期行主动脉瓣置换2例,冠状动脉旁路移植手术1例),升主动脉置换+支架象鼻术2例,升主动脉+全弓置换+支架象鼻术3例,降主动脉置换术2例,共死亡3例,死亡原因为急性肾功能衰竭、多脏器功能不全、心跳骤停及纵隔感染。结论:老年主动脉夹层病情凶险,外科开胸手术治疗死亡率较高,采取杂交手术及微创腔内修复治疗,效果满意。