动脉旁路手术治疗慢性下肢缺血的中远期结果

目的 探讨慢性下肢缺血的动脉旁路治疗的中远期效果.方法 回顾性分析2002年1月至2007年4月212例经动脉旁路治疗的慢性下肢缺血患者的临床资料.治疗方式包括股.膝上腘动脉旁路111例,股-膝下胭动脉旁路59例,主-髂动脉旁路25例,股股转流17例.结果 术后186例(87.7%)获随访6～68个月(中位随访期18个月),股-膝上胭动脉旁路术与股-膝下胭动脉旁路术1年初次通畅率分别为69.7%、53.5%,二次累计通畅率为81.6%、60.5%,两者差异无统计学意义(P＞0.05);其3年通畅率分别为56.3%和23.8%,两者差异有统计学意义(P＜0.05);腹主-髂股旁路与股一膝上胭动脉旁路及股股转流术近远期通畅率差异均无统计学意义(P＞0.05).随访期内52例患者行二次手术,23例行膝上或膝下截肢,保肢率为89.2%.围手术期死亡10例(4.7%),随访死亡20例,多数死于心脑血管原发疾病;人工血管感染6例.结论 根据患者病情选用适当的旁路手术方式,可取得满意的效果.股-膝上腘动脉旁路中、远期通畅率高于股-膝下胭动脉旁路,两者近期通畅率无差异.     

微创技术结合外科手术治疗重症下肢缺血

目的 探讨术中血管微创治疗技术结合外科手术治疗重症下肢缺血的初步临床经验。方法 1999年7月至2000年10月,采用术中同时行髂动脉腔内微创治疗技术(球囊扩张和支架植入)结合肢体远端动脉重建术治疗广泛多节段动脉硬化闭塞症15例(20条肢体)。结果 术中17条髂动脉微创介入治疗均获成功,11条肢体同时行股-腘动脉人工血管旁路术,3条肢体行股-股-腘动脉人工血管旁路系列转流术,5条肢体行股深动脉成形术。其中有1条肢体股-腘动脉旁路术失败。本组患者无重要脏器并发症和手术死亡。平均随访时间8个月(1-16个月),髂动脉腔内支架通畅率100％,3条股-股动脉耻骨上人工血管转流均通畅,而股-腘动脉人工血管通畅率78．6％,截肢率10．0％。结论 术中髂动脉腔内微创介入治疗技术同时结合远端动脉重建术是治疗广泛多节段动脉硬化闭塞症的害全右特肯沸．     

138例下肢动脉硬化闭塞症外科治疗经验探讨

目的 探讨下肢动脉硬化闭塞症(ASO)的外科治疗经验.方法 回顾性分析本院自2004年1月至2007年1月外科治疗下肢ASO138例患者的临床资料.结果 本组138例接受包括动脉旁路转流术、介入治疗、动脉内膜剥脱术、股深动脉成形术等在内的一种术式或多种术式联合的外科治疗172例(次).随访119例,随访率86.2%,平均随访18.2个月.围手术期死亡率43%.全组截肢率5.8%.腹主(髂)-股动脉旁路转流术后6个月、1年、2年的通畅率高于股-股动脉人工血管旁路转流术,差异有显著性(P<0.01);股-咽动脉旁路转流中应用自体大隐静脉转流病例术后6个月、1年、2年的通畅率高于应用人工血管转流病例,差异有显著性(P<0.01);原位大隐静脉旁路转流围手术期并发症较倒置大隐静脉旁路转流低,但二者术后通畅率比较无显著性(P>0.05).结论 下肢ASO病变的复杂性决定了其外科治疗方法的多样性,且往往需要将各种外科治疗方法进行结合才能取得较好的临床疗效.     

多节段下肢动脉硬化闭塞症介入治疗及手术治疗体会

目的 总结一侧髂动脉闭塞合并下肢动脉长段闭塞患者治疗的临床效果.方法 对于一侧髂动脉同时合并下肢动脉长段闭塞的多节段下肢动脉硬化闭塞症患者,间歇跛行距离小于50m或有静息痛者采用髂动脉支架或联合血管旁路术治疗下肢动脉硬化闭塞症32例.结果 行髂动脉病变段球囊扩张及内置支架术29例36枚支架,3例髂动脉介入治疗失败,行股浅动脉病变段支架置入3例,行股-腘动脉膝上血管旁路术13例,行膝下血管旁路术2例,3例髂动脉支架治疗失败者2例行股-股动脉耻骨上旁路术,1例放弃治疗.介入治疗及手术治疗均取得成功.随访3～36个月,3例患者因肿瘤或急性心肌梗塞死亡,大部分患者临床症状消失.1例股浅动脉支架1个月后闭塞,后因肢体严重缺血截肢.3例股-腘旁路血管闭塞,1例接受取栓手术好转,1例截肢,1例无静息痛间歇跛行距离大于50m应用药物治疗.结论 支架置入或联合血管旁路术是治疗多节段下肢动脉硬化闭塞症的安全有效方法 .     

下肢动脉硬化闭塞症血管介入联合外科手术疗效观察

目的探讨下肢动脉硬化闭塞症的治疗方法及临床疗效。方法采用骼、股、腘动脉球囊扩张术+支架植入术结合动脉旁路术、股深动脉成形术治疗下肢动脉硬化闭塞症26例(30条患肢)。8条患肢行骼动脉球囊扩张+支架植入术,其中12条患肢加行股深动脉成形术,6条患肢加行股-腘动脉人工血管转流术,4条肢体行膝下球囊扩张术。结果手术均获得成功,未出现严重并发症。术后踝肱指数0.65±0.19与术前0.23±0.12相比有明显提高(P<0.05)。平均随访12个月(1～23个月)。与术前相比患者症状明显改善,仅4例残余有间歇性跛行(跛行距离300 m),其中1例术后3个月外院行干细胞移植术后症状明显好转,跛行距离>1 000 m。结论骼、股、腘动脉球囊扩张、膝下球囊扩张术+支架植入结合动脉旁路术、股深动脉成形术、股-腘动脉人工血管转流术是治疗下肢动脉硬化闭塞症的有效方法。手术创伤小,操作方便。手术方式灵活,尤适用于高危重症患者。     

下肢动脉硬化闭塞症的腔内治疗

下肢动脉硬化闭塞症主要累及髂股动脉、股腘动脉和膝下动脉,目前主要的治疗方式是腔内治疗,由于三段动脉解剖的差异,其腔内治疗原则和效果是不同的.主髂动脉硬化闭塞的腔内治疗的通畅率不低于外科手术,已成为首选方式;股腘动脉硬化闭塞因其发病率高,腔内治疗的通畅率不能令人满意,已成为研究热点;膝下动脉闭塞的腔内治疗仍处在探索之中,...     

多节段动脉硬化闭塞症的外科治疗

目的　探讨下肢多节段动脉硬化闭塞症外科治疗的临床经验。　方法　术中行髂动脉腔内微创技术 (球囊扩张和支架植入 ) ,并同时行肢体远端动脉重建术治疗广泛多节段动脉硬化闭塞症 47例 ( 5 8条肢体 )。　结果　术中 5 3条髂动脉球囊扩张和支架植入均获成功 ,微创治疗技术成功率 10 0 % ;同时行远端动脉重建 5 8条肢体 ,其中包括 :股 -动脉人工血管旁路术 40条肢体 ;深动脉内膜剥脱或补片扩大成形术 18条肢体。股 -动脉人工血管旁路术后踝肱指数平均 0 .77± 0 .13 ( 0 .5～ 1.2 ) ,与术前相比有显著性差异 (P <0 .0 1)。股深动脉扩大成形术后踝肱指数 0 .41± 0 .15 ( 0 .2～ 0 .5 6) ,与术前相比有提高 (P <0 .0 5 )。死亡 1例 (占 2 .1% ) ,其余无严重并发症。平均随访 2 1( 3～ 42 )个月 ,髂动脉支架一期通畅率为 98.1% ( 5 1 5 2 ) ,二期通畅率为 10 0 % ( 5 2 5 2 ) ,股 -动脉人工血管一期通畅率为 87.2 % ( 3 4 3 9) ,二期通畅率为 94.9% ( 3 7 3 9)。截肢率 3 .4% ( 2 5 8)。　结论　术中髂动脉腔内微创介入治疗结合远端动脉重建术是治疗严重多节段动脉硬化闭塞症安全、有效方法     

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目的 探讨下肢动脉硬化继发急性血栓形成的外科治疗。方法 回顾性分析16例下肢动脉硬化继发急性血栓形成的诊断方法和手术治疗方案。结果 16例中4例行动脉取栓＋股浅动脉狭窄段内膜剥脱术，6例行动脉取栓＋股浅动脉开口处短段内膜剥脱＋股深动脉开口成形术，3例行动脉取栓＋髂外－Guo动脉搭桥＋股深动脉开口成形术，1例行动脉取栓＋股－胫前动脉搭桥，1例行动脉取栓＋髂总－股浅动脉搭桥，1例截肢。结论 下肢动脉硬化继发急性血栓形成应积极手术探查，术中除单纯取栓外，应根据具体动脉病变需要，再行动脉内膜剥脱术、股深动脉成形术或自体大陷静脉搭桥术。     

下肢动脉腔内成形治疗下肢动脉旁路移植血管闭塞后严重缺血

1 临床资料 患者,男性,73岁,因下肢动脉硬化闭塞症于2005年于外院接受"左股腘动脉人工血管旁路移植术",术后人工血管闭塞,于2007年11月转至首都医科大学宣武医院,于11月28日接受"左髂外动脉球囊扩张+支架成形;左股-腘动脉人工血管-左胫后动脉自体大隐静脉移植术",术后症状缓解.     

血栓闭塞性脉管炎合并动脉硬化闭塞导致下肢缺血的手术治疗

目的 探讨下肢血栓闭塞性脉管炎(thmmboangiitis obliterans,TAO)合并动脉硬化闭塞症(arteriosclerosis obliterans,ASO)手术治疗效果.方法 回顾性分析2007年治疗的TAO合并ASO 6例患者的资料.2例行腹主动脉切开取栓+内膜剥脱+腹主动脉-股深动脉人工血管旁路移植-胭动脉人工血管-小腿动脉自体大隐静脉旁路移植术,1例行腹主动脉切开取栓+内膜剥脱+腹主动脉-右股深动脉人工血管旁路移植-膝下胭动脉人工血管旁路移植术;1例行左髂总动脉-左股深动脉人工血管旁路移植一胫前动脉自体大隐静脉原位移植术,1例行左侧人工血管切开取栓+左股深动脉成形-膝下腘动脉人工血管旁路移植术,1例行右股总动脉-左股总动脉人工血管旁路移植-胫后动脉自体大隐静脉旁路移植术.结果 5例患者术后恢复顺利,1例于术后当天出现股动脉-腘动脉人工血管和远段的大隐静脉桥血栓形成,立即再次手术行人工血管和大隐静脉切开取栓术,并同时行胫后动静脉吻合.6例患者均痊愈出院,无死亡病例.5例患者的下肢远端静息痛完全缓解,1例部分缓解.足部溃疡的2例创面明显缩小,无感染发生.所有患者得到随访,平均随访为6.5个月,3例足部溃疡愈合.1例术后3个月出现左股部切口感染,最终行膝上截肢处理,残端一期愈合.其他5例患者的移植血管通畅,症状缓解.结论 对TAO合并ASO患者如果手术治疗方式恰当,可以取得比较好的疗效.     

内膜下血管成形术治疗股腘动脉硬化闭塞症

目的探讨内膜下血管成形术(SIA)治疗长段股腘动脉硬化闭塞的临床疗效及其技术要点。方法回顾性分析2009年6月～2011年8月我院收治的20例TASCⅡC型、D型股腘动脉硬化闭塞患者的临床资料,采用SIA开通长段闭塞管腔,同时行球囊扩张和支架植入术,以踝/肱指数(ABI)、Fontaine分期、保肢率和通畅率综合评估临床疗效。结果 SIA技术成功率为85%,临床症状改善率为90%,保肢率为95%,一期通畅率为83.3%,ABI从术前0.42±0.07提升至术后0.86±0.14,术前、术后比较差异有统计学意义(P<0.01)。术后随访12～24个月,18例临床症状改善的患者中有3例术后3～6个月症状复发,行第二次介入治疗,其余患者症状均无加重或复发。结论 SIA在治疗股腘动脉硬化闭塞症中具有良好的应用价值,方法安全有效,近期通畅率较好,远期通畅率尚需要进一步随访。     

A comparison of patch angioplasty and stenting for axillary venous stenoses of thrombosed hemodialysis grafts

The efficacy of balloon angioplasty with stent placement is compared to surgical patch angioplasty for thrombosed upper arm hemodialysis grafts with stenotic lesions at the venous anastomosis. Patients with thrombosed hemodialysis grafts terminating at the axillary vein were reviewed. Thirty-eight stents were placed after thrombectomy and venous balloon angioplasty in 26 patients. Fifteen case-matched controls underwent 23 polytetrafluoroethylene patch angioplasties for similar lesions. Kaplan-Meier survival analysis was used for statistical comparison. Primary patency for stent placement compared with patch angioplasty was not statistically different at any time through 1-year follow-up (37% vs 55% at 3 months, 25% vs 45% at 6 months, and 25% vs 15% at 12 months, respectively; p = 0.37). Secondary patency rates were slightly better for patch angioplasty compared with stent placement (78% vs 59% at 3 months, 78% vs 48% at 6 months, and 54% vs 32% at 12 months, respectively) however these differences were not statistically significant (p = 0.13). There was no difference in complication rates between groups. Sustained patency is poor for both angioplasty with stent placement and surgical patch angioplasty when revising thrombosed dialysis grafts with anastomotic axillary vein stenosis. These data suggest slightly better patency for the routine use of patch angioplasty for these lesions. However, the endovascular approach appears to be a reasonable alternative when surgical exposure is difficult.     

Surgical Thrombectomy and Transluminal Balloon Angioplasty for Failed Above-knee Femoropopliteal Polytetrafluoroethylene Bypass Grafts

Endovascular therapy offers an alternative to redo bypass or surgical graft revision for failed above-knee femoropopliteal PTFE bypass grafts. We evaluated the outcome of surgical thrombectomy and balloon angioplasty for the treatment of thrombosed bypass grafts. Thirty selected patients with thrombosed above-knee femoropopliteal PTFE bypass grafts were treated. Under local anesthesia, a surgical thrombectomy followed by bypass graft angiography and balloon angioplasty of perianastomotic stenoses was performed. Stents were used selectively for suboptimal angioplasty results. Patients underwent duplex scanning of the bypass graft postoperatively and at 6-month intervals. Life-table analysis and log-rank (Mantel-Cox) comparisons were performed. Patients were categorized into two groups on the basis of time elapsed from initial bypass graft construction to graft failure. Group 1 included 21 patients with a mean time to graft failure of 10 months (range, 0-20). Surgical thrombectomy was successful in 20 grafts (95%) and 17 patients had a stent placed after angioplasty. Rethrombosis occurred within 30 days in seven grafts (33%) in group 1 and major amputations were performed in six patients (28%). Group 2 included nine patients with a mean time to initial bypass graft failure of 48 months (range, 29-96). All patients in group 2 had a successful surgical thrombectomy and all received a stent. None of the grafts treated in group 2 reoccluded within 30 days of intervention and one patient (11%) went on to require a major amputation. By life-table analysis, the 6- and 12-month patency for group 1 was 15.3% and 5.1%, compared to 58.3% and 38.9% for group 2 (p = 0.027). Surgical thrombectomy along with balloon angioplasty has an unacceptably high rate of failure and limb loss in patients treated for early (<2 years) femoropopliteal PTFE bypass graft thrombosis. Surgical graft revision or redo bypass is recommended to achieve successful revascularization in these patients. Treatment with surgical thrombectomy and balloon angioplasty achieves significantly greater short-term patency results in patients with late (>2 years) bypass graft failure and may be a reasonable alternative for patients who cannot tolerate reoperation or lack autogenous conduit.Presented at the Twenty-eighth Annual Meeting of the Peripheral Vascular Surgery Society, Chicago, IL, June 7, 2003.     

术中髂动脉支架结合股动脉旁路术治疗多节段动脉硬化闭塞症

目的 探讨术中髂动脉腔内成形及支架植入结合股-Guo动脉旁路术治疗多节段动脉硬化闭塞症的初步临床经验。方法 采用术中同时行髂动脉腔内成形和支架植入结合股-Guo动脉旁路术治疗多节段动脉硬化闭塞症10例（12条肢体）。结果 术中11条髂动脉行腔内成形和支架植入均获成功,9条肢体行股-Guo动脉人工血管旁路术,3条肢体行股-股-Guo动脉人工血管旁路系列转流术;1条肢体股-Guo动脉旁路术失败,本组患者无重要脏器并发症和手术死亡。平均随访时间6个月（1-12个月,髂动脉腔内支架通畅率100%;3条股-股动脉耻骨上人工血管转流均通畅;而股-Guo动脉人工血管通畅率83.3%;截肢率8.3%。结论 术中髂动脉腔内支架结合股-Guo动脉旁路术是治疗多节段动脉硬化闭塞症的安全、有效方法。     

Randomized comparison of percutaneous Viabahn stent grafts vs prosthetic femoral-popliteal bypass in the treatment of superficial femoral arterial occlusive disease

OBJECTIVE: This randomized prospective study was designed to compare the effectiveness of treating superficial femoral artery occlusive disease percutaneously with expanded polytetrafluoroethylene (ePTFE)/nitinol self-expanding stent grafts vs surgical femoral-to-above knee (AK) popliteal artery bypass with synthetic graft material. METHODS: From March 2004 to May 2005, 100 limbs in 86 patients with femoral-popliteal arterial occlusive disease were identified. Patients had symptoms ranging from claudication to rest pain, with or without tissue loss, and were prospectively randomized for treatment into one of two groups. The limbs were treated percutaneously with angioplasty and one or more self-expanding stent grafts (n = 50) or surgically with femoral-to-AK popliteal artery bypass using synthetic Dacron or ePTFE grafts (n = 50). The mean +/- SD total length of artery stented was 25.6 +/- 15 cm. Follow-up evaluation with ankle-brachial indices and color flow duplex sonography imaging were performed at 3, 6, 9, and 12 months after treatment. RESULTS: Patients were monitored for a median of 18 months. No statistical difference was found in the primary patency (P = .895) or secondary patency (P = .861) between the two treatment groups. Primary patency at 3, 6, 9, and 12 months of follow-up was 84%, 82%, 75.6%, and 73.5% for the stent graft group and 90%, 81.8%, 79.7%, and 74.2% for the femoral-popliteal surgical group. Thirteen patients in the stent graft group had 14 reinterventions, and 12 reinterventions occurred in the surgical group. This resulted in secondary patency rates of 83.9% for the stent graft group and 83.7% for the surgical group at the 12-month follow-up. CONCLUSIONS: Management of femoral-popliteal arterial occlusive disease using percutaneous treatment with a stent graft is comparable with surgical revascularization with conventional femoral-to-AK popliteal artery bypass using synthetic material up to 12 months. Longer-term follow-up would be helpful in determining ongoing efficacy.     

Early results of external iliac artery stenting combined with common femoral artery endarterectomy

PURPOSE: The endovascular approach to external iliac artery (EIA) disease extending into the common femoral artery (CFA) has been avoided because of problems with stent placement across the inguinal ligament. Surgical treatment for this disease distribution includes extensive endarterectomy or bypass procedures or both. We report our initial experience with a combined open and endovascular approach to these patients. METHODS: We performed a retrospective analysis of all patients who underwent intraoperative EIA stenting after CFA endarterectomy/patch angioplasty between 1997 and 2000. Stents were positioned to end at the proximal endarterectomy endpoint, without crossing the inguinal ligament. Technical success, hemodynamic success, and clinical success were determined according to Society of Vascular Surgery/International Society of Cardiovascular Surgery criteria. Life-table analysis was performed for patency. RESULTS: Thirty-four patients (mean age, 68 years; 23 male, 11 female) had combined endovascular and open treatment of iliofemoral occlusive disease. Indications were claudication in 41% and critical limb ischemia in 59%. Femoral reconstruction included endarterectomy with patch angioplasty in all patients. EIA stent deployment incorporated the stenotic iliac segment and the proximal endpoint of the endarterectomy in all patients. Four patients (12%) also needed common iliac angioplasty at the same time for proximal iliac disease, and 14 patients (41%) also needed distal revascularization for associated femoropopliteal or tibial disease. Technical success and hemodynamic success were achieved in 100% of patients. Clinical success was achieved in 97% of patients. The mean postoperative increase in ankle-brachial index in patients with inflow procedures only was 0.36 (range, 0.1 to 0.85). The overall complication rate was 15%. With a mean follow-up period of 13 months (range, 0.5 to 28 months), 1-year primary patency and primary-assisted patency rates were 84% and 97%, respectively. No perioperative mortality was seen. CONCLUSION: EIA stenting as an adjunct to CFA endarterectomy/patch angioplasty allows for more localized surgery than conventional bypass. This approach also allows a better interface between the stent and endarterectomy than staged preoperative stenting. Technical success and early patency rates are excellent.     

Remote superficial femoral artery endarterectomy: Multicenter medium-term results

OBJECTIVE: The results of percutaneous transluminal angioplasty, atherectomy, and laser angioplasty for the treatment of long-segment (>10 cm) superficial femoral artery (SFA) occlusive disease have proved disappointing. Remote superficial femoral artery endarterectomy (RSFAE) is a minimally invasive procedure, performed through a single limited groin incision that may offer patency rates comparable with those of above-knee femoropopliteal (AKFP) bypass graft. In this retrospective multicenter study the medium-term results of RSFAE are examined. METHODS: Sixty patients were included in this study. Indications for the procedure were claudication in 52 patients and limb salvage in eight patients. RSFAE was performed with the MollRing Cutter device through a femoral arteriotomy. The distal "flap" of atheroma was anchored by balloon/stent angioplasty through the femoral arteriotomy. All patients underwent a follow-up examination with serial color flow ultrasound scanning. RESULTS: Ten patients with heavily calcified SFAs failed as "intentions to treat"; these patients underwent AKFP bypass grafting. The mean length of the endarterectomized SFAs was 22.3 cm (range, 8-37 cm). The primary cumulative patency rate by means of life-table analysis was 61.4% +/- 9% (SE), (mean, 12.9 months; range, 3-36 months). During follow-up, percutaneous transluminal angioplasty was necessary in 14 patients, for a primary-assisted patency rate of 82.6% +/- 8%. The locations of the restenoses after RSFAE were evenly distributed along the endarterectomized SFAs. There were no deaths and one wound complication (hematoma), and the mean hospital length of stay was 1.4 days +/- 0.8 days. CONCLUSIONS: RSFAE is a safe and moderately durable procedure. If long-term patency rates are similar to those of AKFP bypass graft, RSFAE may prove to be a minimally invasive adjunct for the treatment of SFA occlusive disease that will lower operative morbidity, reduce hospital LOS, and shorten recuperation.     

Comparison of surgical bypass and percutaneous balloon dilatation with primary stent placement in the treatment of central venous obstruction in the dialysis patient: One-year follow-up

Central venous stenosis and occlusion are complications that are being observed with increasing frequency as a result of the use of long-term central venous catheters. These complications are especially problematic in patients with end-stage renal disease and functioning ipsilateral arteriovenous (AV) grafts or fistulas (AV grafts). We have previously demonstrated that the 1-year patency rate for simple balloon angioplasty in these patients is less than 10%. To compare the results of surgical treatment vs. percutaneous dilatation with stent placement, we undertook this retrospective study. All patients underwent multiple central venous catheter placements and had functioning ipsilateral AV grafts. Twenty-six patients were divided into two groups. The surgical treatment group included 13 patients: 10 with subclavian vein thrombosis and three with innominate vein thrombosis. All patients in the surgical group had arm swelling and edema. Surgical bypass procedures were performed in these patients using either polytetrafluoroethylene or saphenous vein. The stent group also included 13 patients; all of them had a diagnosis of subclavian or innominate vein obstruction and were treated with percutaneous transluminal angioplasty and placement of either a self-expanding rigid stent (n=6) or a balloon-expandable flexible stent (n=7). Two patients required multiple stent placements. No significant complications occurred in either group. The 1-year mortality rate in both groups was 31%. The percentages of patients who were symptom free at 6 and 12 months were also similar in the two groups. We conclude that surgical bypass and percutaneous transluminal angioplasty with stent placement are both efficacious in the treatment of central venous obstruction.     

球囊扩张联合覆膜支架植入治疗人造血管动静脉内瘘狭窄

目的 探讨球囊扩张联合覆膜支架植入治疗人造血管动静脉内瘘(AVG)狭窄的临床疗效.方法 前瞻性选取15例经皮腔内血管成型术(PTA)疗效欠佳的AVG狭窄患者,且具备以下特点:狭窄长度不超过7 cm,狭窄程度大于50％;PTA后3个月内狭窄复发2次或以上;扩张后残余狭窄＞30％或狭窄部位立即弹性回缩.所有患者在数字减影血管造影(DSA)下行球囊扩张后植入不同内径的聚四氟乙烯覆膜支架.结果 男3例,女12例,平均年龄(66±12)岁.支架植入前内瘘平均使用时间为(19.5±15.0)个月.共植入支架16枚,技术成功率100％,植入部位为静脉吻合口9例(9/15);静脉流出道6例(6/15),其中头静脉3例,肱静脉2例,腋静脉1例.首次开通率3个月为40％,6个月为19％,12个月为13％.再次开通率3个月为93％,6个月为88％,12个月为87％.术后平均随访时间为(14.9±5.3)个月,再窄狭率为87％(13/15).术后PTA 36例次,支架内狭窄36％ (13/36);支架远端狭窄8％ (3/36);支架近端狭窄22％(8/36);与支架无关的狭窄33％ (12/36).AVG中位生存时间为25个月.结论 球囊扩张联合覆膜支架植入治疗AVG狭窄技术成功率高,并发症少,首次开通率不高,但再次开通率令人满意.     

Iliac artery angioplasty : technique and results

Percutaneous angioplasty is widely used for the treatment of iliac artery occlusive disease. Access to the ipsi-lateral, or less commonly contralateral, common femoral artery is obtained under local anaesthesia; the lesion is crossed with a guidewire and dilated with an angioplasty balloon catheter. This technique yields excellent immediate results with very few complications. Stent placement is used in lesions not amenable to balloon angioplasty, in complications, and recurrences. Evidence suggests that balloon angioplasty is the procedure of choice for iliac artery occlusive lesions. Stent placement should be reserved for angioplasty failures. However, primary stent placement is indicated in total occlusions. Lesion morphology is an important determinant of immediate success and long-term patency. TASC lesions type A and B are best treated with angioplasty and stenting, while TASC lesions type C and D show better results with surgical treatment. The development of new stent designs may expand the indications of the percutaneous treatment.