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71.
Laura Andrade Rocha Carlos Eli Piccinato Mauricio Serra Ribiero Christiane Becari Renata Dellalibera Joviliano Edwaldo Edner Joviliano 《Journal of vascular surgery》2017,65(1):119-127
Objective
The purpose of this study was to investigate the roles of the kallikrein-kinin system and matrix metalloproteinases (MMPs) in the development of arterial restenosis attributable to intimal hyperplasia in the femoropopliteal arteries.Methods
This report describes a single-center prospective study of 27 patients with peripheral artery disease who required percutaneous transluminal angioplasty and stenting of the femoropopliteal segment using covered stent grafts. The blood concentrations of total and kininogen fractions were evaluated using immunoenzymatic methods. Plasma kallikrein was evaluated by the colorimetric method. Tissue kallikrein was evaluated by the spectrophotometric method. The activity of kininase II was measured by fluorometric analysis. Quantification of MMPs was performed by zymography, and tissue inhibitors of metalloproteinases were measured by enzyme-linked immunosorbent assay.Results
Four (15%) of the treated patients developed restenosis at the 6-month follow-up evaluation. These patients had significantly lower levels of high-molecular-weight kininogens (24 hours; P < .05) and low-molecular-weight kininogens (before, P < .05; 24 hours, P < .01; 6 months, P < .05) and lower levels of tissue inhibitor of metalloproteinases-2 (6 months; P < .05) than the patients without restenosis. The activity levels of plasma and tissue kallikrein, kininase II, and MMPs did not differ significantly between the patients with and without restenosis.Conclusions
This study demonstrates an involvement of the kallikrein-kinin system in in-stent restenosis, although we could not confirm the participation of metalloproteinases in the restenosis process. 相似文献72.
Pavlos Tsantilas Andreas Kühnl Michael Kallmayer Jaroslav Pelisek Holger Poppert Sofie Schmid Alexander Zimmermann Hans-Henning Eckstein 《Journal of vascular surgery》2017,65(1):12-20.e1
Objective
Current guidelines recommend that carotid endarterectomy (CEA) be performed as early as possible after the neurologic index event in patients with 50% to 99% carotid artery stenosis. However, recent registry data showed that patients treated ≤48 hours had a significantly increased perioperative risk. Therefore, the aim of this single-center study was to determine the effect of the time interval between the neurologic index event and CEA on the periprocedural complication rate at our institution.Methods
Prospectively collected data for 401 CEAs performed between 2004 and 2014 for symptomatic carotid stenosis were analyzed. Patients were divided into four groups according to the interval between the last neurologic event and surgery: group I, 0 to 2 days; group II, 3 to 7 days; group III, 8 to 14 days; and group IV, 15 to 180 days. The primary end point was the combined rate of in-hospital stroke or mortality. Data were analyzed by way of χ2 tests and multivariable regression analysis.Results
The patients (68% men) had a median age of 70 years (interquartile range, 63-76 years). The index events included transient ischemic attack in 43.4%, amaurosis fugax in 25.4%, and an ipsilateral stroke in 31.2%. CEA was performed using the eversion technique in 61.1% of patients, and 50.1% were treated under locoregional anesthesia. The perioperative combined stroke and mortality rate was 2.5% (10 of 401), representing a perioperative mortality rate of 1.0% and stroke rate of 1.5%. Overall, myocardial infarction, cranial nerve injuries, and postoperative bleeding occurred in 0.7%, 2.2%, and 1.7%, respectively. We detected no significant differences for the combined stroke and mortality rate by time interval: 3% in group I, 3% in group II, 2% in group III, and 2% in group IV. Multivariable regression analysis showed no significant effect of the time interval on the primary end point.Conclusions
The combined mortality and stroke rate was 2.5% and did not differ significantly between the four different time interval groups. CEA was safe in our cohort, even when performed as soon as possible after the index event. 相似文献73.
Sara L. Zettervall Eleonora G. Karthaus Peter A. Soden Dominique B. Buck Klaas H.J. Ultee Marc L. Schermerhorn Mark C. Wyers 《Journal of vascular surgery》2017,65(1):91-98
Objective
Isolated visceral artery dissections are rare entities with no current consensus guidelines for treatment and follow-up. This study aims to evaluate the presentation, management, outcomes, and follow-up practices for patients with isolated visceral artery dissections and to compare those with and without symptoms.Methods
In this retrospective analysis, we identified all patients with isolated celiac artery and/or isolated superior mesenteric artery dissections at a single institution between September 2006 and December 2014. Patients with concomitant aortic dissections were excluded. Cases were stratified by symptom status. Presentation, anatomic findings, treatment, outcomes, and follow-up imaging were then compared between symptomatic and asymptomatic patients.Results
We identified 25 patients including 15 with symptoms and 10 without. There were no differences in patient comorbidities; however, symptomatic patients more frequently presented with thrombus (n = 10; 67% vs n = 1; 10%; P = .01) and inflammation (n = 8; 53% vs n = 1; 10%; P = .04), and trended toward increased stenosis (n = 12; 80% vs n = 4; 40%; P = .09) compared with asymptomatic patients. All asymptomatic patients were treated with observation alone with vessel diameter enlargement noted in 33% (n = 2) of patients on follow-up imaging. Among symptomatic patients, standard treatment included a short course of anticoagulation (mean, 4.5 months) with lifelong antiplatelet therapy. Three patients underwent operative intervention for persistent or worsening symptoms, two during the index admission and one 10 months after presentation for chronic abdominal pain. Approximately 70% (n = 17) of patients in each group had follow-up imaging (computed tomography angiography: n = 14; 56%; magnetic resonance angiography: n = 4; 16%; ultrasound: n = 13; 52%). Among patients treated nonoperatively, no patients complained of symptoms at follow-up, and 50% of those with inflammation on initial imaging had resolution. Twenty-five percent (n = 4) of patients had an increase in vessel size; however, all vessels remained less than 2 cm in maximal diameter. There were no ruptures or related deaths in either group.Conclusions
Among patients with visceral artery dissection, no ruptures occurred but diameter enlargement was documented. This disease progression suggests that routine surveillance may be appropriate; however, transitioning early to ultrasound imaging should be considered to decrease radiation, contrast, and associated costs. 相似文献74.
目的 探讨伤口呈色显影预测重症肢体缺血患者血运重建术后溃疡愈合的价值.方法 回顾性分析上海交通大学医学院附属仁济医院血管外科2011年6月1日-2014年6月30日收治成功实施Angiosome概念指导腔内血运重建的重症肢体缺血的缺血性溃疡患者临床资料.根据血管腔内血运重建术后伤口呈色显影情况分组,其中伤口呈色(+)组109例,伤口呈色(-)组64例,分别比较患者保肢率,溃疡愈合时间的差异,试分析其作为重症肢体缺血的缺血性溃疡愈合预测因子的价值.采用SPSS 19.0软件进行统计学分析.正态分布计量资料以均数±标准差(x±s)表示,两组比较采用t检验.计数资料以频数和百分比表示,两组比较采用Pearson x2检验或Fisher确切概率法.结果 纳入研究患者共173例(173条患肢),两组患者年龄、性别比例、吸烟史、冠心病、糖尿病、慢性肾功能不全、术前踝肱指数、术后踝肱指数差异均无统计学意义,溃疡愈合时间:伤口呈色(+)组(3.9±1.9)个月低于伤口呈色(-)组(7.9±2.6)个月,差异有统计学意义(P＜0.05).累积保肢率:伤口呈色(+)组(90.2％)高于伤口呈色(-)组(78.0％),差异有统计学意义(P＜0.05).通过Logistic回归分析,校正年龄、性别、吸烟史、高血压异常等因素后,伤口呈色(-)(OR=4.5,P＜0.05)、IRc(间接血供有侧支)血运重建(OR =2.6,P＜0.05)均是溃疡难愈合的独立危险因素.结论 伤口呈色显影阳性显示足部循环较好,可以作为重症肢体缺血的缺血性溃疡愈合的预测因子,而伤口呈色显影阴性是溃疡难愈合的独立危险因素. 相似文献
75.
背景与目的：随着腔内技术的发展,腹主动脉疾病全腔内治疗的安全性和有效性已经得到广泛验证。但在胸腹主动脉疾病中,因为解剖条件更复杂,所以全腔内治疗的难度大,而其安全性和有效性也有待进一步验证。本研究总结笔者团队采用开窗/分支支架治疗胸腹主动脉扩张性病变的单中心经验,并介绍团队针对复杂性胸腹主动脉病首创的双主干技术,以期为同行提供参考和借鉴。方法：回顾性收集2021年10月—2023年7月在上海市第一人民医院接受开窗/分支支架治疗并至少重建2个分支动脉的37例胸腹主动脉扩张性病变患者资料。37例患者中,夹层术后远端瘤样扩张20例,胸腹主动脉瘤17例;在完善术前CTA及评估后,分别行单主干腔内治疗（26例）与双主干腔内治疗（11例）。收集患者的相关临床资料（基线资料、术前解剖参数、围术期指标、随访结局指标）,分析整体治疗效果,以及双主干技术的安全性和疗效。结果：手术总共重建了162个分支动脉,手术技术成功率为100%。围术期发生死亡3例（8.11%）、移植物植入后综合征3例（8.11%）、Ⅲ型内漏1例（2.70%）。中位随访时间为13.73 (2.33～26.74)个月,总体存活率为91.9... 相似文献
76.
《Neuro-Chirurgie》2023,69(1):101389
PurposeThe management of posterior fossa dural arteriovenous fistulas (pfDAVFs) is challenging. Here, we show how multidisciplinarity leads to their successful management, even in complex cases.MethodsAll pfDAVFs managed from 2010 to 2019 at our center were reviewed. The preoperative clinical and radiological characteristics, their management and the occlusion rate were retrieved. The radiological and functional outcomes were retrieved at discharge and last follow-up (FU).Resultsn = 27 patients were included (6 females, mean age: 61-years-old, mean FU: 22.5 months). n = 8 patients presented with cerebral hemorrhage. Among patients with ruptured pfDAVFs, n = 7 had headache, n = 4 had ataxia, and n = 2 had impaired level of consciousness. In the unruptured group N (n = 19), n = 7 patients had headache, n = 6 patients had focal neurological deficit, n = 4 patients had tinnitus, n = 3 (had ataxia, and one presented with seizure. n = 24 patients were treated by endovascular therapy (EVT), n = 2 patients were treated by microsurgery (MS) and n = 1 patient was managed with a combined approach. Re-treatment was necessary in n = 6 patients. n = 24 patients showed total exclusion at last FU. n = 2 patients died during the first 30 days; n = 1 patient died during FU.ConclusionsWhile EVT should be advocated as the first line therapy whenever possible, MS should not be banned from the treatment armamentarium. Neurosurgeons must be able to achieve direct surgical occlusion when the angioarchitecture speaks against EVT. 相似文献
77.
目的 开展主动脉夹层血管腔内修复术的临床研究.方法 对2001年1月至2006年12月165例行血管腔内修复术的主动脉夹层患者的早中期结果进行回顾性分析.其中男性145例,女性20例;年龄30～82岁,平均52.8岁.Stanford A型夹层36例,B型夹层121例,主动脉溃疡8例.结果 即时手术成功率99.4%(164/165),术后30 d内漏发生率为7.3%(12/165),神经系统并发症发生率为2.5%(4/165).术后30 d病死率为6.1%(10/165),其中急性期夹层病死率为12.8%,哑急性期夹层1.4%,慢性期夹层7.3%.145例(87.9%)患者获得随访,时间6～75个月,平均28.2个月.假腔内完全血栓形成62例(42.8%),部分血栓形成83例(57.2%).随访期间死亡9例(6.2%).本组1、2、5年总体生存率分别为90.9%、89.0%和86.9%.结论 血管腔内修复术治疗主动脉夹层是一种微创、安全且有效的方法,其长期疗效仍有待进一步观察. 相似文献
78.
目的 探讨在不同条件下如何合理选择颈动脉狭窄的治疗方式.方法 回顾性分析经颈动脉血管内支架植入术(CAS)和颈动脉内膜切除术(CEA)治疗的133例颈动脉狭窄患者的临床资料.其中46例患者行CAS,87例行CEA.观察两组患者的住院天数和治疗前后的美国国立卫生研究院卒中评分量表(NIHSS)评分、前向血流,治疗前和治疗后1-24个月狭窄处收缩期血流速度峰值及狭窄程度,以及治疗后死亡、脑卒中或心肌梗死等终点事件的发生率.结果 两组住院天数和治疗后NIHSS评分>20层次时差异有统计学意义(P<0.05);两组治疗前后的前向血流评定差异无统计学意义(P>0.05);多普勒频谱测定两组治疗前后颈动脉狭窄程度有显著性差异(P<0.05);两组治疗后30 d内,终点事件的累计发生率差异有统计学意义(P<0.05);31 d～2年终点事件的累计发生率差异无统计学意义(P>0.05);6个月后再狭窄发生率CAS组高于CEA组.结论 CAS和CEA对颈动脉狭窄的效果无显著差异,狭窄的部位、原因及对侧病变是选择CAS和CEA的重要因素. 相似文献
79.
Samir R. Kapadia MD FACC Sachin S. Goel MD Lars Svensson MD PhD Eric Roselli MD Robert M. Savage MD Lee Wallace MD Srikanth Sola MD FACC Paul Schoenhagen MD FACC Mehdi H. Shishehbor DO MPH Ryan Christofferson MD Carmel Halley MD L. Leonardo Rodriguez MD FACC William Stewart MD FACC Vidyasagar Kalahasti MD FACC E. Murat Tuzcu MD FACC 《The Journal of thoracic and cardiovascular surgery》2009,(6):1430-1435
80.
Panagiotis Kougias Aaron Chen Catherine Cagiannos M.D. Carlos F. Bechara M.D. Tam T. Huynh M.D. Peter H. Lin M.D. 《American journal of surgery》2009,198(5):645-649