开胸经导管植入带瓣膜支架置换肺动脉瓣的实验观察

目的 探讨开胸经导管植入带瓣膜支架置换肺动脉瓣的可行性以及6个月的实验效果.方法 以新鲜的羊心包为材料,给予0.6％戊二醛浸泡36 h后缝合在瓣膜环上,并将其固定在镍钛记忆合金自膨胀支架上,制成带瓣膜肺动脉支架.选择体重为(23.5±3.1)kg的健康羊,通过开胸穿刺右心室前壁,将带瓣膜支架经导管植入至肺动脉瓣处,置换自身肺动脉瓣膜,随访6个月,观察实验效果.结果 1只羊术后4个月死于肺动脉支架内血栓形成,4只羊随访6个月,心脏彩色超声、右心室以及肺动脉瓣上造影证实支架的位置及瓣膜功能良好,64排CT检查发现支架无移位.结论 开胸经导管植入带瓣膜支架置换肺动脉瓣方法可行,随访6个月效果理想.     

复合手术技术治疗复杂颈动脉狭窄和闭塞性疾病简

目的分析复合手术技术在复杂颈动脉狭窄或闭塞性疾病中的应用,探讨其临床意义。方法回顾分析12例因颈动脉闭塞和颈动脉串联性病变施行复合手术患者之临床资料,初步分析手术安全性和有效性。结果8例颈动脉闭塞患者,7例实现血管再通;4例颈动脉串联性病变患者,均实现血管再通。术后无一例发生脑卒中或死亡。结论采用复合手术技术治疗颈动脉闭塞和串联性病变疗效安全可靠,值得在临床推荐开展。     

腔内隔绝术治疗Stanford B型主动脉夹层46例临床分析

目的 评价腔内隔绝术治疗Stanford B型主动脉夹层的临床疗效和安全性.方法 回顾性分析46例StanfordB型主动脉夹层行主动脉腔内隔绝术治疗患者的临床资料,所有患者均经股动脉切开置入覆膜支架封堵胸主动脉破裂口,分析手术方法、手术结果、术后并发症及随访结果.结果 46例患者手术均获成功,术后住院5～20（12.9±3.4）d,术中2例出现残余内瘘,经重复扩张后内瘘减轻.随访2d至5.1年,平均36个月,随访期间有1例患者术后出现腔隙性脑梗死,1例患者出院后2d死亡,其余患者均未再出现主动脉夹层及截瘫等严重并发症.结论 腔内隔绝术治疗Stanford B型主动脉夹层的院内及中期疗效满意,明显改善患者的生存率和生活质量.     

颈动脉支架断裂

颈动脉支架断裂（carotid artery stent fracture,CASF）是颈动脉支架置入术（carotid artery stenting,CAS）的一种少见并发症,其发生可能与血管成角、钙化、支架类型、支架长度、重叠等相关。文章对CASF的发生率、影响因素、分型、后果和处理方法进行了综述。     

多节段髂股动脉闭塞症的微创治疗：附40 例报告

目的：探讨采用髂动脉支架植入术+股动脉内膜剥脱术+补片成形术治疗多节段髂股动脉硬化闭塞症的临床疗效。 方法：选择2010年3月—2013年3月收治的40例多节段髂股动脉硬化闭塞症患者,均采用髂动脉支架植入术+股动脉内膜剥脱术+补片成形术治疗。 结果：所有患者均手术成功,术后37例（92.5%）患者临床症状明显改善。术后间歇性跛行距离和静息下踝肱指数均明显高于术前（均P<0.05）。40例患者术后随访12~45个月,一期通畅率为70.0%（28/40）、辅助一期通畅率为82.5%（33/40）、二期通畅率为92.5%（37/40）。统计分析显示,Fontaine II级患者的一期通畅率明显高于III、IV级的患者（P=0.039,0.015）,未发现术后一期通畅率的独立影响因素。 结论：微创手术治疗多节段髂股动脉硬化闭塞症临床疗效显著,且应在临床症状出现的早期进行治疗,以获得更佳的一期通畅率。     

CT angiography in Fontans with implanted stents

BackgroundCT angiography is used as a non-invasive method in the evaluation of patients with Fontan circulation. For good visualization of patients having undergone the Fontan operation the optimal scan timing and adequate intravenous route is important.PurposeThe aim of this study was to confirm that computer tomography is very a good tool for assessment of patients after Fontan procedure with implanted stents in pulmonary arteries or in fenestration.Material and methodsSix patients with Fontan circulation and implanted stent in left pulmonary artery or in fenestration underwent CT angiography. The CT angiography was successfully performed to all patients. For homogenous enhancement of Fontan pulmonary arteries and Fontan tract we decided to use 1-minute delay scan with right antecubital application of contrast agent. The optimal enhancement was evaluated at the right pulmonary artery (RPA), left pulmonary artery (LPA), and Fontan tract. Optimal enhancement was defined when evaluation of stent was possible.ResultsOptimal enhancement when the stent was possible to evaluate intraluminally was achieved in seven CT examinations. The Bland–Altman test demonstrated good agreement between readers.ConclusionsThis study demonstrates that CT angiography is a fast, accurate and reproducible method in the evaluation of patients with Fontan circulation, and implanted stent in pulmonary arteries or in fenestration.     

Provisional bifurcation stenting

Obstructive coronary lesions involving a branch origin or extending into the branch itself, remain one of the main challenges in the rapidly developing world of interventional cardiology. Acutely, these lesions are prone to the complications resulting residual stenosis or loss of one of the branches. Long-term follow up has also been disappointing with a high incidence of restenosis. Numerous techniques have been developed, aimed at optimizing the in significant acute and long-term results by adapting standard angioplasty hardware, with limited success, particularly in the long term. This article describes a fully dedi cated system for bifurcation lesions with stenting of the main vessel to the main branch, yet ensuring side branch patency, with limited risk of branch origin stenosis or stent jailing, allowing for provisional stenting of the branch as dictated by the angiographic outcome.     

Subclavian artery stenting: Immediate and mid term clinical follow-up results

BACKGROUND: Intravascular stents are increasingly being used to treat subclavian artery obstructive disease. This study aimed to assess the immediate and midterm clinical outcome of subclavian artery stenting. METHODS AND RESULTS: Total occlusion of the subclavian artery was seen in 7 (28%) out of the 25 consecutive patients treated for subclavican artery stenosis. Mean lesion length was 14 &#45 4.3 mm. The mean preprocedure diameter stenosis was reduced from 83.2 &#45 14.9% to 9.6 &#45 5.4% postprocedure. success was achieved in all patients. Clinical follow-up was obtained in all patients. The initial success was maintained at follow-up (mean = 12 &#45 4 months) in 24 (96%) patients. Recurrence of symptoms occurred in 1 (4%) patient who had an angiographically documented restenosis four months after the procedure. It was successfully redilated. CONCLUSION: Stenting for subclavian artery obstructive disease is safe, technically feasible and has favorable clinical outcomes. It may be considered as the therapy of choice for subclavian artery Procedural obstructive disease. (Int J Cardiovasc Intervent 2000; 3: 231-235)     

胆道内支架引流治疗恶性胆道梗阻的疗效观察

目的评价胆道支架技术对治疗恶性胆道梗阻的应用价值。方法对23例恶性梗阻性黄疸患者行内镜下胆道支架治疗,并对其临床效果进行分析。结果23例恶性胆道梗阻患者一次性成功行内镜下胆道支架内引流术（ERBD）20例,操作成功率为86.9%。失败3例,1例改用合适长度的支架后引流成功,总成功率为91.3%;2例改用PTCD。结论内镜下胆道支架植入术是治疗恶性胆道梗阻性疾病的有效方法,创伤小、方便、经济、安全,可以有效地提高患者的生存时间,提高生存质量。