共查询到19条相似文献,搜索用时 62 毫秒
1.
目的 评价血管内超声(IVUS)显像在主动脉夹层动脉瘤人工血管内支架术中的作用。方法 选择2001年4月~2002年12月在我院血管外科行人工血管内支架术的降主动脉夹层动脉瘤7例,评价IVUS在支架尺寸选择、操作定位和疗效观察等方面的作用。结果 在夹层动脉瘤人工血管内支架术中,通过IVUS测量近端真腔的最大直径可验证支架尺寸的选择,通过测量破口距左锁骨下动脉开口的距离可确定支架的释放部位,结合IVUS的套暖方法可确保支架在真腔内释放。支架释放后,可通过IVUS观察支架与真腔壁的贴附状况,及时发现Ⅰ型内漏。结论 在降主动脉夹层动脉瘤人工血管内支架术中,IVUS可验证支架尺寸的选择,指导支架的准确释放并评价其疗效。 相似文献
2.
3.
目的探讨经颅多普勒超声(TCD)、彩色多普勒血流显像(CDFI)和CT血管成像(CTA)在椎基底动脉供血不足(VBI)中的诊断价值。方法65例临床诊断为VBI的患者进行TCD、CDFI和CTA检查。结果65例VBI患者中,椎基底动脉TCD异常46例(70.8%),CDFI异常35例(53.8%),CTA异常39例(60.0%)。以CTA为标准,TCD对椎基底动脉异常改变的敏感性为79.5%,特异性为42.3%,符合率64.6%,与CTA检出率的一致性差(K=0.228,P>0.05);TCD结合CDFI检查对椎基底动脉异常改变的敏感性为89.7%,特异性为73.1%,符合率83.1%,与CTA检出率的一致性较好(K=0.641,P<0.01)。结论TCD结合CDFI检查能对大部分患者提供可靠的影像学和血流动力学依据,必要时行CTA检查。 相似文献
4.
主动脉夹层血管腔内治疗现状 总被引:1,自引:0,他引:1
尽管主动脉夹层(AD)在临床上不常见,但其发病凶险,许多患者死于院外或未明确诊断,约有1/3的患者表现为受累系统器官的症状。有些患者无发病体征,即使有体征,也是复杂多样的。临床上应高度警惕,以便对AD作出快速、准确的诊断。AD的治疗主要包括积极控制血压、外科手术。近年来,血管腔内治疗用于治疗AD已取得了大量理论和实践上的临床经验,其微创优势已被证实。但国外主动脉夹层发病率低,血管腔内治疗的近远期疗效仍需进一步研究评价。未来的发展主要体现在器材创新方面,使解剖复杂尤其是需要杂交技术完成的夹层得到更加合理的治疗。 相似文献
5.
目的:观察Stanford B型主动脉夹层胸主动脉腔内修复术(thoracic endovascular aortic repair,TEVAR)中覆盖腹腔干动脉的中远期临床疗效。方法:2007年7月至2015年7月,中南大学湘雅二医院血管外科收治累及腹腔干动脉Stanford B型主动脉夹层患者21例,术前对患者进行了详细的CT三维血管重建(CT angiography,CTA)或数字减影血管造影(digital substract angiography,DSA)检查以确认腹腔干动脉与肠系膜上动脉间侧支循环的存在。术中精确定位释放支架,同时覆盖腹腔干动脉及近腹腔干动脉的主动脉破口。随访分别在术后2周、1个月、3个月、6个月、12个月进行,之后每年进行1次随访。结果:所有患者术后均无肝功能损害,无腹痛、腹胀等脏器缺血症状。所有患者均未发生脊髓缺血症状。7例患者术后即时造影有内漏发生,但经保守治疗后3个月内均自行停止。余14例患者术后即时造影均未发现内漏,术后CTA复查可发现假腔内血栓形成,假腔逐渐缩小。结论:TEVAR治疗Stanford B型主动脉夹层术中有计划地覆盖腹腔干动脉可以有效覆盖近腹腔干动脉开口的主动脉夹层破口。术后出现腹腔内脏器缺血或脊髓缺血的概率较低。术后II型内漏是其主要并发症,但多可经保守治疗后自行停止。 相似文献
6.
血管腔内带膜支架在主动脉夹层中的应用 总被引:1,自引:0,他引:1
目的:探讨和评价血管腔内带膜支架治疗主动脉夹层动脉瘤的临床效果。方法:从2004年3月~2005年3月,我科对7例Ⅲ型主动脉夹层动脉瘤病人,行血管腔内带膜支架置入术治疗,对治疗前后病人胸痛及心功能进行评估和分析。结果:7例病人支架置入均成功,胸痛缓解或消失,心功能明显改善,原发破口完全封闭,无内漏。①血管腔内带膜支架在治疗主动脉夹层动脉瘤中的应用,对于提高病人生活质量,缓解疼痛症状具有显著的效果。②对于改善心功能有明显效果,术前术后左室射血分数(LVEF)由35.15升至53.90,P〈0.01,具有显著性统计学意义。结论:血管腔内带膜支架治疗主动脉夹层疗效满意,较之外科手术技术成功率高、创伤小、恢复快、并发症少、死亡率低等优点。 相似文献
7.
难治性主动脉夹层动脉瘤的血管腔内治疗 总被引:8,自引:0,他引:8
目的 总结难治性主动脉夹层动脉瘤的血管腔内治疗经验。方法 2001年1月至2004年10月,对68例主动脉夹层和夹层动脉瘤的患者进行血管腔内治疗,其中对13例难治性病例进行临床分析。Stanford A型9例:主动脉夹层撕裂口在升主动脉3例,撕裂口在主动脉弓三大主干区域内3例,撕裂口在主动脉弓下段,累及升主动脉3例。Stanford B型4例。8例有2个以上撕裂口,其中3例术前近段夹层主动脉瘤破裂。13例均行血管腔内带膜支架植入术。2例先开胸行升主动脉与左颈总动脉、左锁骨下动脉旁路术,1例行颈总-颈总动脉旁路术,然后再行血管腔内治疗。Stanford B型多撕裂口主动脉夹层动脉瘤中有3例行多撕裂口一期或二期植入多个带膜支架腔内治疗。结果 全组随访2个月~3年。撕裂口在升主动脉病例中1例术后1个月死于消化道大出血,1例Stanford A型在近段夹层动脉瘤治疗后,因远段动脉瘤破裂,于术后27h死亡。其余11例术后半年复查CT、MR、多普勒超声等均证实原撕裂口封闭良好,假腔内血栓形成,未见新的夹层。结论 血管腔内带膜支架植入是治疗撕裂口位于升主动脉或主动脉弓区域内的难治性主动脉夹层动脉瘤的有效方法,手术成功率高,死亡率低。对于瘤体破裂病例也是可行的。 相似文献
8.
9.
超声诊断急性主动脉夹层的价值 总被引:1,自引:0,他引:1
应用经胸超声显像和彩色血流显像确诊急性主动脉夹层7例,其中Debhey Ⅰ型2例,Ⅱ型5例;2例经手术证实。对临床首先突发胸痛、腰痛者,特别是高血压患者应高度警惕本病的发生。超声诊断本病与其它的几种影像诊断方法作了比较,认为超声检查不失为首选方法。 相似文献
10.
覆膜血管内支架种植治疗B型主动脉夹层 总被引:1,自引:0,他引:1
目的探讨覆膜血管内支架种植治疗B型主动脉夹层临床疗效。方法86例B型主动脉夹层,男74例,女12例,平均年龄50岁(29~74岁)岁。术前行CT增强扫描(部分病例为MRI检查)及DSA检查,选用大动脉覆膜血管内支架封堵夹层原发破口,植入后即刻行DSA检查。随访采用EBCT增强扫描。结果覆膜血管内支架种植全部成功,术后即刻造影77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。2例急性腹腔内脏供血障碍中毒性休克者,覆膜支架种植术后虽然供血改善,但中毒症状未改善,最终死于中毒性休克。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,12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。1例术后30天支架远端形成假性动脉瘤死亡。结论覆膜血管内支架种植治疗B型主动脉夹层安全有效,近、中期疗效满意,远期疗效有待于进一部观察。 相似文献
11.
目的评价彩色多普勒超声在急性主动脉夹层中的诊断价值。方法分析彩色多普勒超声诊断为急性主动脉夹层的22例患者的超声心动图资料。结果彩色多普勒超声诊断急性主动脉夹层22例,误诊1例(占4.55%),确诊的21例患者中I型15例,Ⅱ型1例,Ⅲ型5例,全部显示真腔和假腔及撕裂的内膜回声,超声检出内膜破1:34例,21例中合并主动脉瓣中量反流以上9例,合并心包积液8例。结论彩色多普勒超声在急性主动脉夹层中有较高的诊断价值,可快速准确对其分型,为临床选择治疗方式及手术方案提供重要依据。 相似文献
12.
HU Wei Francois Schiele Nicolas Meneveau Made-France Seronde Pierre Legalery Fiona Caulfield Jean-Francois Bonneville Sidney Chocron Jean-Pierre Bassand 《中华医学杂志(英文版)》2008,121(21):2139-2143
Background The value of intravascular ultrasound (IVUS) imaging in patients with replacement of the ascending aorta for acute type A aortic dissection (AD) is unknown. The purpose of this study was to assess the potential use of IVUS imaging in this setting. Methods From September 2002 to July 2005, IVUS imaging with a 9 MHz probe was performed in a series of 16 consecutive patients with suspected or established AD. This study focused on 5 of them with replacement of the ascending aorta for acute type A AD. Among these 5 patients, other imaging modalities including aortography, spiral computed tomography, magnetic resonance imaging and transesophageal echocardiography were performed in 5, 3, 3 and 1 patients, respectively.
Results There were no complications related to IVUS imaging. For the replaced graft, as other imaging modalities, IVUS could identify all 5 grafts, the proximal and the distal anastomoses, and the ostia of the reimplanted coronary arteries. In 2 cases, IVUS detected 2 peri-graft pseudo-aneurysms (1 per case), which were also detected by magnetic resonance imaging but omitted by aortography. For the residual dissection, IVUS had similar findings as other imaging modalities in detecting the patency (5/5), the longitudinal and the circumferential extent, the thrombus (4/5), the recurrent dissection (1/5) and an aneurysm distal to the graft (5 in 4 patients). However, it detected more intimal tears and side branch involvements than other imaging modalities (15 vs 10 and 3 vs 1, respectively).
Conclusions In following-up patients with replacement of the ascending aorta for acute type A AD, IVUS imaging can provide complete information of the replaced graft and the residual dissection. So, IVUS imaging may be considered when the four current frequently used imaging modalities can not supply sufficient information or there are some discrepancies between them. 相似文献
Results There were no complications related to IVUS imaging. For the replaced graft, as other imaging modalities, IVUS could identify all 5 grafts, the proximal and the distal anastomoses, and the ostia of the reimplanted coronary arteries. In 2 cases, IVUS detected 2 peri-graft pseudo-aneurysms (1 per case), which were also detected by magnetic resonance imaging but omitted by aortography. For the residual dissection, IVUS had similar findings as other imaging modalities in detecting the patency (5/5), the longitudinal and the circumferential extent, the thrombus (4/5), the recurrent dissection (1/5) and an aneurysm distal to the graft (5 in 4 patients). However, it detected more intimal tears and side branch involvements than other imaging modalities (15 vs 10 and 3 vs 1, respectively).
Conclusions In following-up patients with replacement of the ascending aorta for acute type A AD, IVUS imaging can provide complete information of the replaced graft and the residual dissection. So, IVUS imaging may be considered when the four current frequently used imaging modalities can not supply sufficient information or there are some discrepancies between them. 相似文献
13.
目的:探讨急性主动脉夹层急诊治疗方法的选择.方法:对作者在阜外心血管病医院外科急诊1个月所见13例病人的临床资料进行分析.结果:本组药物治疗2例,手术治疗6例,主动脉内支架置入治疗2例,均痊愈出院;1例因合并腹腔脏器缺血坏死放弃治疗;2例在急诊药物治疗过程中主动脉夹层破裂猝死.结论:急诊药物治疗是所有急性主动脉夹层病人的基本治疗.急性主动脉夹层急诊外科治疗方法的选择主要根据主动脉夹层Debakey分型.DebakeyⅠ型、Ⅱ型应尽早手术;DebakeyⅢ型积极的药物治疗与外科手术效果相似,选择急诊手术治疗有一定的指征;DebakeyⅢ也可行主动脉内支架置入治疗. 相似文献
14.
血管内超声成像在冠状动脉内支架植入术中的应用评价 总被引:4,自引:0,他引:4
目的探讨血管内超声成像(IVUS)在冠状动脉内支架植入术中的作用。方法用IVUS对44例行冠状动脉内支架植入治疗的患者进行评价,测量支架扩张前、扩张后和高压球囊再次扩张后的最小管腔直径、最小管腔面积、总截面积、斑块面积和面积狭窄率,观察扩张后支架是否贴壁、支架扩张是否充分及支架长度是否足够。结果在首次扩张后,仅有4处病变的IVUS结果符合理想的支架植入标准,40处病变未达到理想标准中有35处进行了高压球囊再次扩张,支架内的最小管腔面积由首次扩张后的(7·3±1·7)mm2增加至最终的(9·2±1·5)mm2(P<0·001);扩张术后最小管腔直径、最小管腔面积、总截面积增加,斑块面积缩小,面积狭窄率降低,差异有统计学意义。最终有22处病变(50%)达到IVUS支架植入理想标准。结论IVUS能指导支架的植入和实时评价手术的效果;对于首次扩张后造影结果满意但IVUS结果不理想的病变,在IVUS指导下的更高压力(14~16atm)扩张可使50%的病变进一步得到改善。 相似文献
15.
Lei Zhang Qingsheng Lu Jian Zhou Zaiping Jing Zhiqing Zhao Junmin Bao 《European journal of medical research》2015,20(1)
Background
Since the new 2009 guidelines for left subclavian artery (LSA) management using thoracic endovascular aortic repair (TEVAR), a few studies have been published about alternative LSA management. The objective of this study was to present the follow-up results of covered or revascularized LSA during TEVAR.Methods
From January 2010 to August 2012, 109 consecutive patients were treated with TEVAR at the Department of Vascular Surgery, Changhai Hospital, for aortic dissection extending near the LSA. After evaluating the bilateral vertebral arteries, fifty-two LSAs were covered and not revascularized (covered group), while 57 LSAs were preserved (revascularized group). Complications were stratified according to the time of occurrence after surgery.Results
Emergency operations were more common (17.3 vs. 3.5 %, P = 0.017) and operation time was shorter (96.9 ± 16.3 vs. 135.3 ± 38.4 min, P < 0.001) in the covered group. Pulselessness and intermittent claudication of the left arm occurred in most patients in the covered group (P < 0.001). Incidence of stroke and cold shoulder feeling were higher in the covered group compared with the revascularized group (P = 0.026 and <0.001, respectively). There were five aorta-related deaths in the covered group and one in the revascularized group. Eight endoleaks were observed in the revascularized group (P = 0.006).Conclusions
The results of this study suggest that due to occurrence of complications, LSA should be preserved or revascularized to reduce complications and to improve patients’ quality of life. 相似文献16.
冠脉造影是诊断及治疗冠心病最有价值的方法。由于冠状动脉解剖结构的特殊性及冠脉病变的多样性,冠脉造影检查对于冠脉病变的评估已不足以满足临床需要,随着冠脉支架植入技术的发展及成熟,随之出现支架贴壁不良及支架内血栓形成,使患者再次面临急性心血管事件风险概率增加。因此,在冠脉造影中应用血管内超声检查已成为冠脉介入手术的热点,其能充分评估冠脉管壁、管腔及病变性质,有利于病情的充分评估及支架选择、支架释放的应用。该文就血管内超声在冠脉介入手术中的临床应用进行综述。 相似文献
17.
低场磁共振成像对主动脉夹层动脉瘤的诊断价值 总被引:1,自引:0,他引:1
目的:评价低场磁共振成像对主动脉夹层动脉瘤(aortic dissection,AD)的诊断价值。方法:对急、慢性期的12例主动脉夹层动脉瘤患者行包括轴位、左前斜失状位、冠状位成像的MRI检查,其中6例同时行磁共振血管造影(CE-MRA)。结果:12例均能清晰显示病变的范围,夹层起始部位、内膜片及真假腔,其中6例假腔内显示血栓。12例患者按DeBaKey分型:Ⅰ型5例,Ⅱ型2例,Ⅲ型5例。结论:MRI对AD的诊断有重要价值,且无创伤性,并为临床提供详尽、可靠的信息,是AD的首选无创性检查方法。 相似文献
18.
彩色多普勒超声对主动脉夹层的诊断及临床意义 总被引:1,自引:0,他引:1
目的评价彩色多普勒超声对主动脉夹层的诊断及应用价值。方法对35例彩色多普勒超声诊断主动脉夹层患者的临床资料进行分析。结果彩色多普勒超声能清晰显示剥离的内膜、剥离的范围及血流改变,并对主动脉夹层进行分型。结论彩色多普勒超声是临床诊断主动脉夹层的有效手段,可作为首选的诊断方法,对临床选择治疗方案及评价疗效具有重要的价值。 相似文献
19.
【目的】应用血管内超声(IVUS)探讨不稳定性心绞痛(unstable angina,UA)及稳定性心绞痛(stable angina,SA)患者冠脉斑块的形态学特点。【方法】对冠状动脉造影(CAG)确诊的53例SA患者、74例UA患者127例支冠脉病变行IVUS检查。【结果】IVUS发现SA和UA患者中,软斑块分别为45.3%和71.6%(P<0.05),斑块破裂分别为0和35.1%(P<0.05),偏心斑块分别为45.3%和79.7%(P<0.05),纤维斑块分别为54.7%和20.3%(P<0.05),钙化斑块54.7%和16.2%(P<0.05)。【结论】SA和UA患者冠脉斑块的IVUS影像在性质和结构上有显著差异。 相似文献