首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   37篇
  国内免费   8篇
  完全免费   14篇
  综合类   59篇
  2017年   5篇
  2016年   3篇
  2015年   3篇
  2014年   2篇
  2013年   2篇
  2012年   3篇
  2011年   5篇
  2010年   6篇
  2009年   5篇
  2008年   8篇
  2007年   13篇
  2006年   1篇
  2005年   1篇
  2004年   1篇
  2003年   1篇
排序方式: 共有59条查询结果,搜索用时 46 毫秒
1.
Transcatheter closure of coronary artery fistula in children   总被引:4,自引:0,他引:4       下载免费PDF全文
Background Transcatheter closure of coronary artery fistula (CAF) has emerged as a successful alternative to surgery. We described our experiences in 10 children patients who were accepted for transcatheter closure of CAF. Methods Ten children were 3-10 years old (seven males) with CAF who underwent percutaneous transcatheter closure between October 1995 and April 2008. Sites of origin of these fistulas were: right coronary artery in seven, left anterior descending coronary artery in two, and left circumflex coronary artery in one patient. Drainage sites of these fistulas were: right atrium in seven, right ventricle in two and left ventricle in one patient. All of these fistulas were congenital and had only one orificium fistula.Results A Cook coil was used in four patients and an Amplatzer patent ductus arteriosus (PDA) occluder was used in six patients. Checking the angiogram after the procedure revealed complete occlusion in nine patients (90%) and minimal residual flow in one (10%) patient. Technical success was achieved in all patients. Follow-up studies at short term showed complete abolition of shunt in all patients with no evidence of recanalization leading to recurrence of shunt. Conclusions Transcatheter therapy using either Cook coil or Amplatzer PDA occluder is suggested to be a safe and effective method of occlusion. The midterm outcome of the intervention for CAF is satisfactory.  相似文献
2.
国产Amplatzer封堵器治疗动脉导管未闭62例临床分析   总被引:2,自引:0,他引:2  
目的探讨应用国产Amplatzer封堵器(ADO)介入封堵治疗动脉导管未闭(PDA)的有效性和安全性,评价其近期和中期疗效。方法全组共62例,年龄3~42岁,平均(18±8)岁。对所有患者封堵治疗的临床资料进行回顾分析,对成功封堵的61例患者分别于术前和术后1~3d、1个月及3个月行经胸超声心动图(TTE)评价其近期和中期疗效。结果封堵成功率98.4%,术后即刻残余分流率8.2%;封堵器脱落1例,最终行急诊开胸术,术后恢复良好;TTE示成功封堵患者的肺动脉压力、肺动脉内径、左房及左室内径术前和术后比较差异有统计学意义。结论应用国产ADO介入封堵治疗PDA可以明显改善患者心血管形态和功能,是一种新的安全、有效的治疗手段。  相似文献
3.
外科微创封堵术治疗继发孔房间隔缺损的临床应用   总被引:1,自引:0,他引:1  
目的总结外科微创封堵术治疗继发孔房间隔缺损(ASD)的临床应用经验,评价其安全性和疗效。方法全组9例,ASD直径14~31mm。均在全麻下经右胸第4肋间隙胸骨旁2—3cm小切口进胸,再经食管心脏彩超(TEE)引导下经输送器置入封堵器。结果9例手术均成功,1例术后3h封堵器脱落,换用大号封堵器后再次封堵成功。全组术后无并发症发生,术后2~6d出院;经1~10个月随访,无残余分流发生,右房、室缩小,肺动脉压明显降低,心功能改善。结论外科微创封堵术治疗ASD创伤小、术后恢复快,且安全、有效,值得临床推广应用。  相似文献
4.
Background Whether the low molecular weight heparin microcapsule coated occluder is helpful to endothelialization in atrial-septal defect models is uncertain. This study aimed to investigate the best conditions for low molecular weight heparin coated NiTi alloy occluder and provide the evidence of the efficacy and safety of atrial-septal defect occluders in vivo. Methods Low molecular weight heparin microcapsules were investigated using gelatin as microcapsule material. The prepared low molecular weight heparin gelatin particles were subjected to nickel and titanium alloy occluder coating by sodium hyaluronate. A dog model of atrial septal defects was established after treatment with low molecular weight heparin microcapsule coated occluder (n=4) and uncoated occluder (n=4). Endotheliocytes and fibroblastic cells in occluders were observed. And the rate of endothelialization was detected. Results When the concentration of gelatin was 1%, the diameters of particles were mostly about 100 μm, and the particle size was uniform. The envelope efficiency of low molecular weight heparin microcapsule was about 80%. The endothelialization of occluder in the model was more obvious in the coated group than in the uncoated group (P 〈0.0001). Conclusions Low molecular weight heparin can be prepared into microcapsules with their particle size in nanometric grade. The antithrombotic properties are kept in the nickel and titanium alloy occluder successfully coated with sodium hyaluronate. The endothelialization after the interventional occlusion in the coated group is obvious, indicating that low molecular weight heparin is helpful to the growth of endothelial cells in the occlude and the healing after the interventional occlusion.  相似文献
5.
目的:评价蘑菇伞封堵器经导管介入治疗婴幼儿动脉导管未闭(patent ductus arteriosus,PDA)的临床疗效.方法:2002—12/2008-06我科对婴幼儿PDA78(男28,女50)例实施经导管介入治疗,年龄8—36(15.8±5.6)mo,体质量7.8—17.5(12.0±4.3)kg;行右心导管检查测定肺动脉压力、主动脉压力,行主动脉弓降部造影,确定PDA位置、形状及大小,PDA最窄处内径1.5—14.3(4.3±3.1)mm.以蘑菇伞堵堵器行介入治疗.术后24h及1,3,6,12mo行彩色多普勒超声心动图检查.结果:78例患儿中74例(94.9%)封堵器植入成功.1例主动脉造影后PDA粗大(14.3mm),呈C型,采用最大型号封堵器轻易拉过PDA,该例放弃封堵术,转外科手术治愈.1例为PDA封堵器主动脉侧过大,导致降主动脉局部狭窄、迂曲变形而放弃封堵.1例PDA并发重度肺动脉高压试封堵后30min肺动脉收缩压无下降,反而有轻度上升,考虑为阻力性重度肺动脉高压,撤出封堵器.1例封堵术后封堵器周围大量残余分流,行外科手术治疗.余74例术后30min主动脉弓降部造影显示52例(70.3%)封堵完全,22例(29.7%)可见极少量残余分流,术后24h心脏彩超复查71例(95.9%)封堵完全,3例(4.1%)有少量残余分流,术后1mm彩超复查皆无残余分流;无再通和堵闭器移位等并发症发生.结论:在严格选择适应证的条件下,应用蘑菇伞经导管封堵治疗婴幼儿PDA是一种安全、简便、有效、创伤小、恢复快的方法,值得推广应用.  相似文献
6.
Background In China, transthoracic echocardiography (TTE) is popularly used for pre-intervention examination for atrial septal defect (ASD) and for guiding ASD closure. However, the ability to determine ASD size and the safety and efficacy of l-rE for guiding ASD closure still has not been widely accepted. This study aimed to evaluate the efficacy and safety of l-rE used before, during and after transcatheter ASD closure with Amplatzer septal occluders (ASO).
Methods Sixty-eight subjects (15 men and 53 women; mean age (33.7±17.3) years) were enrolled. TTE was used to measure the diameters and guide transcatheter closure of ASD. The ASD was examined by long-axis view, basal short-axis view, apical four-chamber view and the subcostal view to observe position, diameter and relation with neighbouring structures. The largest diameter was selected as the reference diameter. Patients were divided into 3 groups according to the ASD reference diameter: 22 subjects with ASD diameter 4-14 mm (group A); 21 subjects with ASD diameter 15-20 mm (group B); and 25 subjects with ASD diameter 21-33 mm (group C).
Results ASD was occluded successfully in groups A and B. In group C, occlusion failed in 2 cases; 1 case remained with a 3-mm residual shunt sustained until 6-month follow-up. However, at 6-month follow-up, no case of thromboembolism, ASO dislocation or death occurred in the three groups. The diameter of ASD measured by l-rE could accurately predict the ASO size that could successfully occlude the ASD, especially in patients with ASD 〈20 mm. The ASD diameter measured by l-rE correlated well with ASO size (r= 0.925, P〈0.001 ; r=0.976, P〈0.001 ; r=0.929, P〈0.001 respectively).
Conclusions ASD diameter measured by l-rE can accurately estimate the size of the ASO needed for successful closure of ASD. The larger the ASD, the much larger the ASO needed. l-rE is a satisfactory guiding imaging tool for ASD closure.  相似文献
7.
先天性巨大冠状动脉右室瘘的介入治疗   总被引:1,自引:0,他引:1  
目的 探讨经导管法封堵先天性巨大冠状动脉瘘的技术方法及其有效性与安全性.方法 对1例先天性粗大、迂曲右冠状动脉右室瘘患者进行经导管封堵治疗.选择性冠脉造影后,建立动-静脉轨道,再沿轨道钢丝经股静脉送人长鞘经瘘口至右冠状动脉,沿鞘管将动脉导管未闭封堵器置于右冠状动脉瘘口处,确定封堵器位置合适后将其完全释放.结果 瘘口完全堵闭,术后无并发症,复查心脏超声示各心腔内径缩小.结论 对迂曲、粗大的冠状动脉瘘,用国产器械经导管封堵治疗安全、有效.  相似文献
8.
室间隔缺损介入治疗的临床分析   总被引:1,自引:0,他引:1  
目的评价经导管介入治疗室间隔缺损(VSD)的疗效、安全性及其并发症治疗。方法112例VSD患者经超声心动图显示,膜部室间缺损(VSD)110例室间隔膜部缺损合并肌部缺损(Rogers病)1例,法乐氏四联症术后残余漏1例,5例合并房间隔缺损,3例合并动脉导管未闭,5例合并膜部瘤。2例室间隔缺损上缘距主动脉瓣1mm左右,其余均在1mm以上。室间隔缺损直径2.5—13mm(6.12±2.36mm)。所有患者无严重的肺动脉高压或右向左分流,均使用国产先健科技生产的封堵器。结果112例造影测量值为2.2—13.5mm(6.54±2.68)mm,选择的封堵器直径为4—16mm(7.344-1.87)mm。107例封堵成功,10分钟后造影或超声示无残余分流,5例患者封堵失败,8例术中出现室上性心动过速,无临床自觉症状,3例术后出现右束支传导阻滞,2例出现心包积血,1例出现脑栓塞,6例出现心前区疼痛,2例头疼明显,1例封堵伞脱落。封堵成功患者随访1—12个月,无其它并发症和残余分流发生。结论经导管治疗室间隔缺损是安全有效的方法之一,其并发症少,经临床积极治疗,效果良好。  相似文献
9.
复合先天性心脏病介入治疗的初步体会   总被引:1,自引:0,他引:1  
目的探讨经皮介入治疗合并其他先天畸形、瓣膜疾病、冠脉病变等复合先天性心脏病的策略和近期疗效评价。方法13例适合经导管介入治疗的复合先天性心脏病,其中男7例,女6例,平均年龄(25.2±20.3)岁。复合类型为:房间隔缺损(ASD)合并室间隔缺损(VSD)2例,ASD合并肺动脉瓣狭窄(PS)2例,ASD合并二尖瓣狭窄(MS)1例,ASD合并冠脉狭窄需介入治疗1例,ASD合并右位心1例,VSD合并动脉导管未闭(PDA)3例,PDA合并B型预激综合征1例,PDA右位心、下腔静脉肝段缺如1例,VSD合并下腔静脉肝段缺如1例。经导管治疗原则:ASD合并其他先天性心脏畸形者先处理后者,再行ASD封堵;VSD合并PDA者先行VSD封堵,再行PDA介入治疗;PDA合并预激综合征者先行射频消融治疗,再行PDA介入治疗。术后1个月、3个月、6个月、1年随访。结果13例复合先天性心脏病患者经导管治疗均获成功。术后即刻堵塞的ASD、VSD及PDA均无明显残余分流,跨肺动脉压差由术前的(78.5±28.9)mmHg(1mmHg=0.133KPa)降至(21.4±6.8)mmHg;平均(11.0±8.8)个月随访仍无残余分流,无任何并发症发生。结论复合先天性心脏病经导管介入治疗指征把握恰当、治疗方法合理,可以获得良好的效果。  相似文献
10.
儿童动脉导管未闭介入堵闭术的临床疗效评价   总被引:1,自引:0,他引:1  
目的评价分别运用弹簧圈(Coil)和Amplatzer封堵器(ADO)堵闭小型和中一大型动脉导管未闭(PDA)的临床疗效。方法对1998年5月至2006年1月在我院接受介入封堵术的112名PDA患儿进行回顾性队列研究。结果植入Coil和ADO的患儿分别为19例和93例。AIX)组患儿PDA最窄处直径为1.7~11.0mm,(平均3.53mm),显著高于Coil组患儿1.0~3.3mm(平均1.76mm),P〈0.001。全部患儿均成功完成介入封堵术(100%)。1年随访期中,残余分流率在不同随访时间点分别为Coil组31.6%(即刻)、26.3%(24h)、5.3%(1~3月)、5.3%(9~12月)和ADO组21.5%、6.5%、2.2%和1.2%。近期并发症2例,溶血1例,心律失常1例。远期随访中无溶血、PDA再通和左肺动脉或降主动脉狭窄;无患儿因残余分流需要再次接受介入治疗。结论选择合适的堵闭器经导管介入封堵治疗儿童PDA疗效确切,安全性好。  相似文献
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号