west china medical publishers
Keyword
  • Title
  • Author
  • Keyword
  • Abstract
Advance search
Advance search

Search

find Keyword "内漏" 12 results
  • Management of Endoleak after Endovascular Exclusion for Aortic Dissection

    腔内隔绝术(endovascular exclusion, EVE)最早用于治疗腹主动脉瘤,1994年Dake报道将其用于B型主动脉夹层(aortic dissection, AD)的治疗,国内自1998年开展。在EVE治疗AD的10余年历史中,内漏的预防和处理始终是一个备受关注的问题,现结合笔者的经验讨论AD术后内漏相关的问题。......

    Release date: Export PDF Favorites Scan
  • Diagnosis and Management of Endoleak after Endovascular Aneurysm Repair in Abdominal Aortic Aneurysm

    腹主动脉瘤(AAA)腔内修复术(EVAR)是目前大动脉病变腔内治疗最成熟的技术之一。AAA EVAR术后内漏指支架型血管置入后,在支架型血管腔外、被旷置的瘤体及邻近血管腔内出现持续性血流的现象[1~3]。内漏是AAA EVAR术后最为常见、对疗效影响很大的并发症,其发生率大约15%~50%[4]。内漏可导致瘤体进一步增大甚至破裂。目前,内漏的机理尚不完全明确,诊断与治疗方面也存在争议。现根据我院临床经验,结合近年来相关文献报道探讨AAA EVAR术后内漏的诊治。......

    Release date: Export PDF Favorites Scan
  • Intra-Sac Pressure Measurement of Abdominal Aortic Aneurysm to Reveal The Characters of All Types of Endoleak

    Objective To review and compare the literatures on studying endoleak via intra-sac pressure (Psac) measurement in order to reveal the characters of all types of endoleak. Methods Measured the intra-sac pressure with miscellaneous pressure transducers in vitro and in vivo endoleak models or patients afflicted with endoleak. Compared the difference of Psac among no endoleak and all types of endoleak. Results Psac>0 but was obviously lower than Psys in no endoleak. Psac approached Psys in type Ⅰ and type Ⅳ endoleaks. Some researches showed that Psac in type Ⅱ endoleak was higher than that in no endoleak and even approached Psys, however the other researches showed that Psac in type Ⅱ endoleak was lower than that in no endoleak. Conclusion Postoperative Psac dropping greatly eliminated the risk of aneurysm rupture, which symbolized the success of endovascular therapy. Even if the type Ⅰ endoleak of small size might lead to obvious elevation of Psac, which necessitates management. The impairment and management tactics of type Ⅱ endoleak remained equivocal, which required further study.

    Release date: Export PDF Favorites Scan
  • ANALYSIS OF ENDOLEAK IN SHORT TERM AFTER ENDOVASCULAR ANEURYSM REPAIR FOR ABDOMINAL AORTIC ANEURYSMS

    Objective To observe the occurrence condition of endoleak after endovascular aneurysm repair (EVAR) operation for abdominal aortic aneurysm (AAA), and to analyze the factors of the endoleak. Methods Between July 2005 and June 2013, 210 cases of AAA were treated with EVAR. Of 210 patients, 175 were male and 35 were female, aging 42-89 years (mean, 65.7 years). The patients were all proved to have infrarenal AAA by computed tomography angiography (CTA). The disease duration ranged from 1 week to 2 years (median, 11.3 weeks). The maximum diameter of the aneurysms was 44-72 mm (mean, 57.3 mm). The proximal landing zone was longer than 1.5 cm. CTA was performed routinely at 2 months after operation to detect the endoleak of contrast agent. If endoleak was found, CTA was performed again at 6 months. If obvious endoleak still existed, digital subtraction angiography (DSA) would be performed to clarify the character and the degree of the endoleak, and EVAR should be done if necessary. Results Endoleak occurred in 31 cases (14.8%) during operation, including 11 cases of type I endoleak (8 cases of type IA and 3 cases of type IB), 18 cases of type II endoleak, and 2 cases of type III endoleak (type IIIB). The patients were followed up 2-8 months (mean, 3.1 months). At 2 months after operation, contrast agent endoleak was found in the remnant aneurysm cavity of 12 cases (5.7%). At 6 months after eperation, contrast agent endoleak was found in 10 cases (4.8%) by CTA. In 8 patients receiving DSA, there were 4 cases of type I endoleak (3 cases of type IA and 1 case of type IB), 3 cases of type II endoleak, and 1 case of type III (type IIIB) endoleak. In 5 patients having type I and type III endoleak, collateral movement of stent graft was observed in different degree; after increased stent graft was implanted, the endoleak disappeared after 2-4 months. The patients having type II endoleak were not given special treatment, endoleak still existed at 2 months after reexamination of CTA, but the maximum diameter of AAA had no enlargement. Conclusion The collateral movement of stent graft is a very important factor to cause type I and type III endoleak in the patients of AAA after EVAR, and endoleak can be plugged by EVAR again.

    Release date:2016-08-31 04:05 Export PDF Favorites Scan
  • Diagnosis and Treatment for Endoleaks after Endovascular Repair of Abdominal Aortic Aneurysm

    ObjectiveTo explore the progresses of diagnosis and treatment for endoleaks after endovascular repair of abdominal aortic aneurysm (EVAR). MethodsThe literatures on studying the classification, diagnosis and management, risk factor, and treatment for the endoleaks after EVAR were reviewed and analyzed. ResultsEndoleak was a common and particular complication after EVAR and its represented persistence meant failure of the EVAR treatment. Accurate detection and classification were essential for the proper management and the treatment method for the endoleak was determined by the different source. Type Ⅰ and type Ⅲ endoleak required urgent treatment, type Ⅱ and type Ⅴ were considered less urgently but may be observed continuously. A variety of techniques including extension endografts or cuff, balloon angioplasty, bare stents, and a combination of transvascular and direct sac puncture embolization techniques were allowed to treat the vast majority of these endoleaks. ConclusionsEndoleak after EVAR is still the main clinical problem to be solved. The characters of endoleak still are not fully revealed. The diagnosis and treatment remained equivocal, which requires further study.

    Release date:2016-09-08 10:40 Export PDF Favorites Scan
  • Risk Factors Analysis of Type Ⅱ Endoleak after Endovascular Aneurysm Repair

    ObjectiveTo discuss the risk factors of type Ⅱ endoleak after endovascular aneurysm repair(EVAR). MethodsThe clinical data of 197 cases of abdominal aortic aneurysm who underwent EVAR in our hospital from Jan. 2006 to Mar. 2011 were analyzed retrospectively, and risk factors of type Ⅱ endoleak were explored by logistic regression. ResultsOf the 197 cases, 18 cases suffered from type Ⅱ endoleak. Result of logistic regression showed that the risk of type Ⅱ endoleak increased per 1 of the increase of lumbar artery number(OR=1.822, P=0.010) and per 1 mm of the increase of lumbar artery diameter(OR=1.256, P=0.040). All of the cases were followed up for 1-36 months(median value of 16.8 months). Only 1 case was intervened by inferior mesenteric artery embolism for the growth rate larger than 5 mm during half a year, who was not found growth of diameter after the embolism. The type Ⅱ endoleaks of other 17 cases closed ultimately or keeping stable. ConclusionsType Ⅱ endoleak after EVAR is affected by the number and diameter of lumbar artery. Persistent type Ⅱ endoleak without enlargement of diameter of aneurysm sac needs to beclosely followed-up instead of re-intervention.

    Release date: Export PDF Favorites Scan
  • Influence of Proximal Aneurysm Neck Anatomy on TypeⅠA Endoleak Following Endova-scular Repair for Infrarenal Abdominal Aortic Aneurysm

    ObjectiveTo determine the influence of proximal aneurysm neck anatomy on typeⅠA endoleak follo-wing endovascular aortic aneurysm repair (EVAR) for infrarenal abdominal aortic aneurysm. MethodsFrom September 2007 to February 2014, 111 consecutive patients with non-ruptured abdominal aortic aneurysms were treated with EVAR. The preoperative CTA of abdominal aortic was obtained by every patient, and the three-dimensional imaging was reconstructed and measured by software of Osorix. Then, the relation between the recurrence of typeⅠA endoleak and the concerned data measured by Osorix was analyzed by the statistical software. ResultsThe recurrence of typeⅠA endo-leak was related to the proximal neck angle of the abdominal aortic aneurysm, which weren't related to the proximal neck diameter and variation rates, the mural thrombas and calcification rate, and the maximum diameter of abdominal aortic aneurysm by multivariate analysis. ConclusionsThe complicated proximal aneurysm neck anatomy is a major cause for the typeⅠA endoleak, the proximal neck angle of the abdominal aortic aneurysm is the independent factor. The applica-tion of EVAR depends largely on the shape of the proximal aneurysm neck.

    Release date: Export PDF Favorites Scan
  • Embolization of type Ⅱ endoleaks after endovascular repair of abdominal aortic aneurysm: a single center experience

    Objective To evaluate the safety and efficacy of treating type Ⅱ endoleaks after endovascular aneurysm repair (EVAR) of abdominal aortic aneurysms with coil embolization. Methods A retrospective review of patients with type Ⅱ endoleaks treated with coil embolization was performed. Data regarding the technical, clinical, and imaging outcomes during perioperation and followed-up were collected. Results The technical success rate and the initial clinical success rate of treating type Ⅱ endoleaks with coil embolization were 100% (14/14). The mean operating time was (124.3±11) min, a mean of (127±15) mL contrast agent and a mean of (7±2) coils were used. During perioperation, one patient suffered left limb paralysis, all the patients were discharged with no perioperative mortality. Twelve patients were followed-up. During the period of 3 to 57 months of followed-up (average: 17.3 months), Type Ⅱ endoleaks reoccurred in one patient with coil embolization of the feeding vessels alone and two patients with coil embolization of the aneurysm sac alone. Since the aneurysms did not enlarge during the followed-up, these 3 patients continued followed-up without reinterventions. Conclusion Treating type Ⅱ endoleaks with coil embolization appears to be safe, and it can prevent aneurysm sac enlargement effectively. Because of the high risk of reoccurrence, follow-up after embolization is important.

    Release date:2017-01-18 08:04 Export PDF Favorites Scan
  • Repair of type Ⅰa endoleak after thoracic endovascular aortic repair

    Objective To retrospectively review our experience of correction of type Ⅰa endoleak after thoracic endovascular aortic repair(TEVAR). Methods From August 2009 to May 2016, 29 patients with type Ⅰa endoleak after TEVAR (25 males, 4 females at mean age of 56±10 years (range, 41–86 years) underwent treatment: open surgery in 15 patients (an open surgery group), hybrid aortic arch repair in 6 patients (a hybrid group) and cuff extension in 8 patients(a cuff group). A history of hypertension was noted in 25 patients, diabetes mellitus in 3 patients, coronary artery disease in 3 patients, lung infection in one patient, aortic root aneurysm in one patient and aberrant right subclavian artery in one patient. Results In the open surgery group, no death was observed. Continuous renal replacement therapy and re-intubation was done in one patient and drainage of pericardial effusion in one patient. No death was noted in the hybrid group and persistent type Ⅰa endoleak in one patient. In the cuff group, thrombosis of the left common artery was noted in one patient and bypass of the left axillary artery to the left axillary artery and the left common carotid artery was done. Unfortunately, he died of cerebral infarction and total in-hospital death rate was 3.4% (1/29). Bypass of the left axillary artery to the left axillary artery was done in one patient with left upper limb ischemia. There were 4 (14.2%) deaths during follow-up: 3 deaths in the open surgical group and one death in the cuff group. Endoleak was observed in one patient in the hybrid group and one in the cuff group. Conclusion The corresponding procedure, including open surgery, hybrid aortic arch repair or cuff extension, is scheduled to be done according to the characteristics of type Ⅰa endoleak. Satisfactory outcomes are achieved in patients with typeⅠa endoleak.

    Release date:2018-09-25 04:15 Export PDF Favorites Scan
  • CUFF 预开窗技术治疗胸主动脉腔内修复术后近端内漏

    目的探讨胸主动脉腔内修复手术中即时造影提示覆膜支架近端出现Ⅰ型内漏,通过追加植入体外预开窗的支架延长段(CUFF)以延长锚定区,并消除Ⅰ型内漏的手术方式的安全性、有效性及其技术要点。方法2016~2017 年阜外医院血管外科中心实施胸主动脉腔内修复手术 623 例,其中 6 例患者在第 1 枚覆膜支架植入后,采取了追加植入 1 枚体外预开窗 CUFF 的方法处理了近端Ⅰ型内漏并保留了弓部分支动脉。6 例患者平均年龄 63.3(54~76)岁,男 4 例、女 2 例,其中 Stanford B 型主动脉夹层 2 例,胸主动脉假性动脉瘤 1 例,主动脉穿通性溃疡 3 例,全部接受经股动脉途径的胸主动脉腔内修复术治疗。结果本组手术成功率 100.0%,预开窗技术分支动脉保留成功率 100.0%,预开窗平均时间 10.3(6~17)min。5 例保留了左锁骨下动脉,1 例同时保留了左颈总动脉和左锁骨下动脉,后者经开窗向左颈总动脉植入覆膜支架 1 枚。本组锁骨下动脉均未植入支架。Ⅰ型内漏消除率 83.3%(5/6),1 例患者术后仍有微少量内漏,未予进一步处理。所有患者均获得门诊或电话随访,随访时间 10.3(3~25)个月,即时造影残留微少量内漏患者于术后 3 个月随访时内漏完全消失,所有患者生活质量改善,无死亡患者。结论对于腔内修复治疗术中出现近端Ⅰ型内漏的主动脉弓降部疾病患者,采取追加植入体外预开窗 CUFF 的方法,可在延长近端锚定区的同时成功保留弓上分支动脉。

    Release date:2020-01-17 05:18 Export PDF Favorites Scan
2 pages Previous 1 2 Next

Format

Content