经左颈内静脉入路肝内门腔静脉支架分流术（附12例报告）

常规的经颈静脉肝内门腔支架分流术均经右颈内静脉入路。这种入路操作容易，已成为经典途径。本文报告了114例肝硬化门脉高压患者中12例经左颈静脉入路完成Tipss操作。12例患者在造影时发现右颈静脉血栓形成、狭窄甚至闭塞。在右颈内静脉闭塞的情况下，经左侧入路是可行的。     

经颈静脉肝内门腔静脉内支架分流术治疗门脉高压症

本文采用经颈静脉肝内门腔静脉内支架分流术(TIPSS)治疗8例反复食管胃底静脉曲张出血的肝硬变门脉高压症(CPH),术中使用8～10mm金属内支架在门静脉和肝静脉之间形成人工通道,达到降低门脉压力、防止上消化道再出血、缩小脾脏、减少腹水的目的。TIPSS术后,症状均得到有效的控制或明显改善。笔者认为:TIPSS是一种有效而可靠的降低门脉压力的非手术疗法,具有疗效确切,创伤性小等优点,因此,应成为治疗CPH消化道大出血的首选方法、同时对Child分级较好的中早期CPH患者也可以起到预防出血的作用。     

Combined transhepatic and transvenous approach to hepatic vein stenosis after transjugular intrahepatic portosystemic shunt (TIPS)

We describe a simple technique for recatheterization of transjugular intrahepatic portosystemic shunts (TIPS) with severe hepatic vein ostial stenoses that are inaccessible to standard transvenous approaches. A small gauge needle is used to transhepatically introduce a guidewire into the shunt; the wire is passed through the hepatic vein stenosis, snared, and used to guide jugular or brachial catheters into the TIPS.     

限流支架植入治疗TIPS引起的难治性肝性脑病

目的　评价限流支架装置在缩小 TIPS分流道直径对治疗由门腔分流引起的肝性脑病的有效性。　方法　 9例TIPS术后并发严重肝性脑病患者经颈静脉沿原肝内支架同轴植入可限制血流量的支架装置。　结果　限流支架植入未出现术中并发症 ,平均门静脉压力由术前 12± 4 .2 cm H2 O升至 2 0± 2 .6 cm H2 O,彩色多普勒超声显示分流道内血流减少 4 7.3%±15 .1% ,肝性脑病得到实质性改善和控制。血氨浓度及胆红素明显降低。　结论　用限流支架治疗门腔分流因起的肝性脑病是安全有效的     

Early and long-term clinical and radiological follow-up results of expanded-polytetrafluoroethylene-covered stent-grafts for transjugular intrahepatic portosystemic shunt procedures

The purpose of this study was to assess the therapeutic efficacy and immediate and long-term safety of expanded-tetrafluoroethylene covered stent-grafts for transjugular intrahepatic portosystemic shunts in patients with portal hypertension-related complications. A cohort of 56 patients suffering from severe portal hypertension-related complications underwent implantation of an expanded-polytetrafluoroethylene-covered stent-graft. All patients suffered from severe liver cirrhosis graded Child-Pugh A (n=8; 16%), B (n=13; 21%) or C (n=35; 63%). In 44 patients, the stent-graft was placed during the initial TIPS procedure (de novo TIPS); in the other 12 patients, the stent-graft was placed to repermeabilize the previously placed bare stent (TIPS revision). Follow-up was performed with clinical assessment, duplex ultrasound and, if abnormal or inconclusive, with invasive venography and pressure measurements. Per- en immediate post-procedural complications occurred in four patients (4/56, 7%). None of them was lethal. During follow-up, stent occlusion appeared in one patient and stenosis in two; no recurrence of bleeding was noted in all patients treated for variceal bleeding (n=28), and 24 of the 28 patients (86%) suffering from refractory ascites and/or hepatic hydrothorax were free of regular paracenteses and/or drainage of pleural effusion after shunt creation. The 30-day and global mortality for the total study population (n=56) was, respectively, 7% (n=4) and 28.5% (n=16). In the patient subgroup with variceal bleeding (n=28), 30-day mortality was 3.5% (n=1) and global mortality 14.2% (n=4). In the ascites and/or hydrothorax subgroup (n=28), 8.1% (n=3) mortality at 30 days was found and global mortality was 32.4% (n=12). In 10 patients of the 56 studied patients (18%), isolated hepatic encephalopathy occurred, which was lethal in 4 (Child C) patients (7%). Three of these four patients died within the 1st month after TIPS placement. A very high primary patency rate of TIPS can be obtained long-term after implantation of an e-PTFE-covered stent-graft, leading to a definitive resolution of portal hypertension-related complications. The incidence of TIPS-induced hepatic encephalopathy is acceptable.     

Emergency transjugular intrahepatic portosystemic shunt for uncontrolled variceal bleeding.

This study was designed to retrospectively evaluate transjugular intrahepatic portosystemic shunt (TIPS) performed on an emergency basis in patients with hemorrhagic shock from recurrent uncontrolled variceal bleeding. Over a 3.5-year period we reviewed the medical records as well as the imaging studies of 16 patients who had uncontrolled variceal bleeding and presented to our department for an emergent placement of TIPS. In our study the technical success was 88% (14/16 patients), the overall mortality was 36% (5/14 patients), and the shunt immediately reduced the portal venous pressure gradient by a mean of 64%. Given the poor outcome of other alternatives, aggressive treatment and placement of TIPS is justified regardless of the severity of the bleeding episode.     

Acute Budd-Chiari syndrome: Treatment with transjugular intrahepatic portosystemic shunt

The case of a 28-year-old man with acute Budd-Chiari syndrome due to veno-occlusive disease is reported. Transjugular intrahepatic portosystemic shunt (TIPS) was performed after upper gastrointestinal endoscopy, duplex sonographic and abdominal computed tomographic examination, inferior cavogram with hepatic venous catheterization, and transvenous biopsy. A 10-mm parenchymal tract was created. The patient did well after the procedure; ascites resolved and liver function improved markedly. The shunt has remained patent up to now for 6 months.     

覆膜支架在经颈静脉门腔分流术中的应用

目的 评价经颈静脉肝内门腔分流术(TIPS)专用覆膜支架(Viatorr支架)在TIPS中的应用价值.方法 回顾性分析37例在美国俄勒冈州健康生命科技大学Dotter介入放射学研究所采用Viatorr支架行TIPS治疗的患者资料,随访时间为(15.2±9.3)个月(3-42个月).TIPS指征包括门静脉高压相关性的急慢性消化道出血,经药物及内镜治疗无效者17例;顽固性肝源性胸、腹水18例,Budd-Chiari综合征2例.采用配对t检验比较手术前后门腔静脉压力差(PSG)的变化,以Kaplan-Meier曲线分析支架开通率.结果 37例共置入41枚Viatorr支架,其中3枚直径为8 mm,38枚为10 mm,支架带膜长度为4～8 cm,无相关手术并发症.PSG由术前的(22.4±8.4)mm Hg(1 mm Hg=0.133 kPa)降为(8.1±3.2)mm Hg,差异有统计学意义(t=12.754,P<0.01).17例出血患者术后出血均停止,1例于术后17个月复发.18例严重顽固性腹水及肝性胸水患者中,4例术后腹水不消退,其余14例随访期间有2例腹水复发.2例(5.4%)发生分流道阻塞,Kaplan-Meier曲线分析结果显示1年的开通率为97.0%.术后1个月内无病死患者,2例分别于术后3个月及15个月死于多器官功能衰竭,晚期病死率为5.4%,死亡前1周内复查支架均通畅.肝移植患者5例(13.5%).结论 Viatorr支架能明显提高TIPS术后开通率,选择合适的支架,采用正确的释放技术能进一步提高疗效,但长期效果评价尚需验证.     

Spontaneous aneurysmal intrahepatic portosystemic venous shunt

A 55-year-old man with hepatic cirrhosis, gastroesophageal varices, ascites, slight abdominal pain, and transient encephalopathy experienced unexpected spontaneous relief of his symptoms during hospitalization. Percutaneous transhepatic portography showed an aneurysmal intrahepatic portosystemic venous shunt. Three years later, the shunt was still patent and had led to disappearance of the patient's varices and ascites. The patient remains stable 6 years later.     

Transcaval TIPS in Patients with Failed Revision of Occluded Previous TIPS

Objective

To determine the feasibility of transcaval transjugular intrahepatic portosystemic shunt (TIPS) in patients with occluded previous TIPS.

Materials and Methods

Between February 1996 and December 2000 we performed five transcaval TIPS procedures in four patients with recurrent gastric cardiac variceal bleeding. All four had occluded TIPS, which was between the hepatic and portal vein. The interval between initial TIPS placement and revisional procedures with transcaval TIPS varied between three and 31 months; one patient underwent transcaval TIPS twice, with a 31-month interval. After revision of the occluded shunt failed, direct cavoportal puncture at the retrohepatic segment of the IVC was attempted.

Results

Transcaval TIPS placement was technically successful in all cases. In three, tractography revealed slight leakage of contrast materials into hepatic subcapsular or subdiaphragmatic pericaval space. There was no evidence of propagation of extravasated contrast materials through the retroperitoneal space or spillage into the peritoneal space. After the tract was dilated by a bare stent, no patient experienced trans-stent bleeding and no serious procedure-related complications occurred. After successful shunt creation, variceal bleeding ceased in all patients.

Conclusion

Transcaval TIPS placement is an effective and safe alternative treatment in patients with occluded previous TIPS and no hepatic veins suitable for new TIPS.     

MR Angiographic guidance for transjugular intrahepatic portosystemic shunt procedures

The authors used magnetic resonance (MR) angiography to guide catheter placement in transjugular intrahepatic portosystemic shunt (TIPS) procedures in nine of 18 patients and compared the results with those of the nine patients for whom prior planning based on MR angiography was not done. Two-dimensional time-of-flight MR venography was performed during breath hold, and projection venograms were formatted in sagittal, coronal, and axial planes. MR angiography defined venous anatomy sufficiently to shorten the procedure and help minimize invasiveness. With MR angiographic guidance, intrahepatic needle punctures were significantly fewer (without MR guidance: mean, 12.1; with MR guidance: mean, 3.6; P < 0.001) and associated complications were absent (without MR guidance: failed placement, n = 1; bleeding requiring blood transfusions, n = 1; death due to intraperitoneal hemorrhage with hemobilia, n = 1; and death due to hepatic capsular perforation, n = 1). The average time for the procedure was 2.9 hours without MR angiographic guidance and 1.8 hours with MR angiographic guidance (P < 0.001). The authors conclude that MR angiography is a useful technique for defining portal and hepatic venous anatomy before the TIPS procedure and that planning based on MR angiography may decrease the difficulty and length of the procedure.     

采用Fluency支架行经颈静脉肝内门腔分流术治疗对肝硬化患者肝肾功能及生存率的影响

目的 评价采用Fluency全覆膜支架行经颈静脉肝内门腔分流术(TIPS)治疗对肝硬化失代偿期患者肝肾功能及生存率的影响.方法 回顾性分析肝硬化失代偿期患者,采用完全随机法抽取其中成功行TIPS手术的48例作为治疗组,药物及内镜治疗的48例作为对照组.随访观察治疗前、治疗后1周、20 d、3个月、6个月、1年、2年和3年的肝肾功能实验室检查结果,并采用成组t检验或Wilcoxon秩和检验进行比较;采用Kaplan-Meier生存曲线统计患者3年内的生存率,并采用卡方检验比较.结果 术后第3年,对照组天冬氨酸转氨酶中位数为108.7 U/L,明显高于治疗组的70.8 U/L;对照组总胆红素中位数为76.2 μmol/L,治疗组为51.2 μmol/L,治疗组均优于对照组,差异均有统计学意义(Z值分别为-2.958和-2.004,P值均＜0.05).对照组治疗后第3年肌酐为(9928.2±2363.8) μmol/L,治疗组为(7742.1±2845.6) μmol/L,差异有统计学意义(t=-2.074,P＜0.05);治疗组治疗后第1、2、3年的尿素氮分别为(2.0±1.1)、(2.3±1.5)和(2.5±1.3) mmol/L,均高于对照组,分别为(2.6±1.1)、(3.8±1.2)、(5.4±1.1)mmol/L,差异均有统计学意义(t值分别为-2.222、-3.940和-6.110,P值均＜0.05).2组患者生存率比较得出的Kaplan-Meier曲线3年生存率,治疗组为46.2％,对照组为30.0％,差异有统计学意义(x2=6.341,P＜0.05).结论 与药物联合内镜治疗相比,以Fluency全覆膜支架行TIPS手术可改善肝硬化患者的肝肾功能,提高生存率,是治疗肝硬化失代偿期患者安全有效的方式.     

Transjugular intrahepatic portosystemic shunts with Spiral Z stents: first clinical experience in 20 patients

We report our preliminary experience with Spiral Z stents for transjugular intrahepatic portosystemic shunts (TIPS). The Spiral Z stent is a modification of the Gianturco-Rosch stent. TIPS was performed in 20 patients with symptomatic portal hypertension and was effective in 19 of them. One patient re-bled and died shortly after the procedure, despite of transjugular embolisation of gastro-oesophageal varices. The portal pressure decrease (5–16 mm Hg) was related to stent diameter (8–12 mm). Mean follow-up was 6 months. Our preliminary results confirm that the 12-mm Spiral Z stent is a suitable device for creation of effective TIPS. Correspondence to: A. Krajina     

Transjugular intrahepatic portocaval shunt (TIPS) and hepatic vein-to-caval stenting as salvage treatment of portal hypertension secondary to neoplasm

A percutaneous transjugular intrahepatic portocaval shunt (TIPS) was successfully performed using Wallstents in a 53-year-old man with neoplastic disease causing portal hypertension and life-threatening variceal hemorrhage. Shortly after-wards, recurrent hemorrhage was investigated by shunt venography which showed that extrinsic narrowing of the hepatic vein and hepatic vena cava was causing shunt thrombosis. Shunt thrombosis was cleared by balloon occlusion of the shunt and forceful retrograde flushing of thrombus into the portal circulation. The compressed hepatic vein and vena cava were then dilated and stented using Gianturco “Z” stents. Bleeding recurred 3 months later due to focal narrowing within the shunt which possibly was due to intimal proliferation. Repeat dilatation and placement of a coaxial Palmaz stent again relieved portal hypertension. Creation of a TIPS for portal hypertension secondary to neoplasm can produce valuable palliation. Complete assessment of hepatic vein and vena cava patency is required to ensure shunt function.     

经颈静脉门腔分流术中Fluency覆膜支架应用的临床观察

目的 评价Fluency覆膜支架在经颈静脉门腔分流术(TIPS)中的临床效果.方法 搜集21例采用Fluency覆膜支架行TIPS治疗患者的临床病例资料进行回顾性分析.本组患者随访时间2.0～24.0个月,平均(10.1±4.6)个月;均为门静脉高压上消化道大出血,其中原发性肝癌门静脉主干癌栓伴大出血1例,布加综合征1例.分析患者术后支架开通情况,门静脉压力及肝功能变化情况.对手术前后门静脉压力及肝功能变化情况的比较采用配对t检验.结果21例患者共放支架25枚,均成功放置,支架直径10 mm 2枚、8 mm为23枚;覆膜支架长度6～8 cm.所有患者术后上消化道出血停止;门静脉压力由术前平均(25.4±3.5)mm Hg(1mm Hg=0.133 kPa)降为(15.4±2.8)mm Hg,手术前后差异有统计学意义(t=12.495,P<0.01).随访期间,1例原发性肝癌伴门静脉主干癌栓患者于术后4个月死亡,1例随访期间发现原发性肝癌的患者术后24个月死亡,1例门静脉高压上消化道大出血患者于术后2个月死于多器官功能衰竭,1例于术后15个月出现肝静脉端狭窄,行第2枚支架治疗效果良好,余17例随访7～17个月支架无狭窄.患者死亡前1周复查超声示支架均通畅.3例术后出现一过性肝性脑病前驱症状,经对症处理后好转.存活6个月以上的19例患者,术前Child肝功能评分(6.3±1.4)分,术后6个月评分(6.4±1.9)分,两者差异无统计学意义(t=0.645,P>0.05).结论采用Fluency覆膜支架行TIPS术,能明显提高TIPS术后开通率,但长期效果及肝性脑病的评价尚需验'证.     

The transjugular intrahepatic portosystemic Stent-Shunt (TIPSS): Results of a pilot study

The new concept of TIPSS (Transjugular Intrahepatic Portosystemic Stent-Shunt) using the Palmaz iliac stent was successfully accomplished in 9 patients with severe portal hypertension (7 alcoholic, 2 postinfectious liver cirrhosis) and histories of multiple life-threatening upper GI bleeding. All patients were considered noncandidates for surgical portal decompression. An intrahepatic central connection was made transjugularly between the right hepatic vein and the right portal vein in 8 patients and the left portal vein in 1. The portosystemic gradient dropped from an average of 29±7.2 mmHg to 17.8±2.9 mmHg immediately after, and to 15.7±2.8 mmHg at the latest follow-up control after the procedure. Seven patients survived the procedure and progressed to Child's A stage during the observation period of 1–10 months (mean 5 months). One patient died as a direct complication from the procedure, and another patient 11 days after the procedure from a severe nosocomial infection. In none of the surviving patients has bleeding from varices recurred or encephalopathic coma developed. In one patient the shunt diameter was moderately increased by a routine PTA catheter to further decrease the portosystemic gradient (23 to 14 mmHg) 3 months after the primary procedure. Autopsy in the two patients who died demonstrated open stent-shunts with early neoendothelial incorporation.     

Transcaval Transjugular Intrahepatic Portosystemic Shunt: Preliminary Clinical Results

Objective

To determine the feasibility of transcaval transjugular intrahepatic portosystemic shunt (TIPS) creation in patients with unusual anatomy between the hepatic veins and portal bifurcation, and inaccessible or inadequate hepatic veins.

Materials and Methods

Transcaval TIPS, performed in six patients, was indicated by active variceal bleeding (n=2), recurrent variceal bleeding (n=2), intractable ascites (n=1), and as a bridge to liver transplantation (n=1). The main reasons for transcaval rather than classic TIPS were the presence of an unusually acute angle between the hepatic veins and the level of the portal bifurcation (n=3), hepatic venous occlusion (n=2), and inadequate small hepatic veins (n=1).

Results

Technical and functional success was achieved in all patients. The entry site into liver parenchyma from the inferior vena cava was within 2 cm of the atriocaval junction. Procedure-related complications included the death of one patient due to hemoperitoneum despite the absence of contrast media spillage at tractography, and another suffered reversible hepatic encephalopathy.

Conclusion

In patients with unusual anatomy between the hepatic veins and portal bifurcation, and inaccessible or inadequate hepatic veins, transcaval TIPS creation is feasible.     

Radiation dose reduction during transjugular intrahepatic portosystemic shunt implantation using a new imaging technology

ObjectiveTo compare patient radiation dose in patients undergoing transjugular intrahepatic portosystemic shunt (TIPS) implantation before and after an imaging-processing technology upgrade.MethodsIn our retrospective single-center-study, cumulative air kerma (AK), cumulative dose area product (DAP), total fluoroscopy time and contrast agent were collected from an age- and BMI-matched collective of 108 patients undergoing TIPS implantation. 54 procedures were performed before and 54 after the technology upgrade. Mean values were calculated and compared using two-tailed t-tests. Two blinded, independent readers assessed DSA image quality using a four-rank likert scale and the Wilcoxcon test.ResultsThe new technology demonstrated a significant reduction of 57% of mean DAP (402.8 vs. 173.3 Gycm², p < 0.001) and a significant reduction of 58% of mean AK (1.7 vs. 0.7 Gy, p < 0.001) compared to the precursor technology. Time of fluoroscopy (26.4 vs. 27.8 min, p = 0.45) and amount of contrast agent (109.4 vs. 114.9 ml, p = 0.62) did not differ significantly between the two groups. The DSA image quality of the new technology was not inferior (2.66 vs. 2.77, p = 0.56).ConclusionsIn our study the new imaging technology halved radiation dose in patients undergoing TIPS maintaining sufficient image quality without a significant increase in radiation time or contrast consumption.     

经颈内静脉门腔分流术治疗肝外门静脉分叉部门静脉瘤1例

门静脉瘤(portal vein aneurysm,PVA)是门静脉系统的梭形或瘤样扩张,临床罕见,治疗以外科手术为主.本中心采用TIPS术治疗门静脉分叉部门静脉瘤1例,术后门静脉瘤逐渐缩小消失,现报道如下. 临床资料 患者男,48岁.以“感染乙肝15年,反复消化道出血6个月”为主诉入院.5年前,因上消化道出血曾行脾切除断流术.     

Transjugular intrahepatic portosystemic shunt in a patient with cavernomatous portal vein occlusion

A 23-year-old woman with liver cirrhosis secondary to primary sclerosing cholangitis was referred to us for the treatment of recurrent bleeding from esophageal varices that had been refractory to endoscopic sclerotherapy. Her portal vein was occluded, associated with cavernous transformation. A transjugular intrahepatic portosystemic shunt (TIPS) was performed after a preprocedural three-dimensional computed tomographic angiography evaluation to determine feasibility. The portal vein system was recanalized and portal blood flow increased markedly after TIPS. Esophageal varices disappeared 3 weeks after TIPS. Re-bleeding and hepatic encephalopathy were absent for 3 years after the procedure. We conclude that with adequate preprocedural evaluation, TIPS can be performed safely even in patients with portal vein occlusion associated with cavernous transformation.