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Barahman M, Alanis L, DiNorcia J, Moriarty JM, McWilliams JP. Hepatic artery stenosis angioplasty and implantation of Wingspan neurovascular stent: A case report and discussion of stenting in tortuous vessels. World J Gastroenterol 2020; 26:448-455. [PMID: 32063693 PMCID: PMC7002905 DOI: 10.3748/wjg.v26.i4.448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 12/05/2019] [Accepted: 01/01/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Hepatic artery stenosis is a complication of orthotopic liver transplant occurring in 3.1%-7.4% of patients that can result in graft failure and need for re-transplantation. Endovascular therapy with angioplasty and stenting has been used with a high degree of technical success and good clinical outcomes, but tortuous hepatic arteries present a unique challenge for intervention. Suitable stents for this application should be maneuverable and conformable while also exerting adequate radial force to maintain a patent lumen.
CASE SUMMARY Herein we report our experience with a neurovascular Wingspan stent system in a challenging case of recurrent hepatic artery stenosis and discuss the literature of stenting in tortuous transplant hepatic arteries.
CONCLUSION Wingspan neurovascular stent is self-expanding, has good conformability, and adequate radial resistance and as such it could be added to the armamentarium of interventionalists in the setting of a tortuous and stenotic transplant hepatic artery.
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Affiliation(s)
- Mark Barahman
- Department of Pathology, Albert Einstein College of Medicine and Montefiore Medical Center, Bronx, NY 10461, United States
| | - Lourdes Alanis
- Department of Radiology, Division of Interventional Radiology, Ronald Reagan Medical Center at UCLA, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, United States
- Division of Interventional Radiology, Ronald Reagan Medical Center at UCLA, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, United States
| | - Joseph DiNorcia
- Department of Surgery, Ronald Reagan Medical Center at UCLA, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, United States
| | - John M Moriarty
- Department of Radiology, Division of Interventional Radiology, Ronald Reagan Medical Center at UCLA, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, United States
- Division of Interventional Radiology, Ronald Reagan Medical Center at UCLA, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, United States
| | - Justin P McWilliams
- Department of Radiology, Division of Interventional Radiology, Ronald Reagan Medical Center at UCLA, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, United States
- Division of Interventional Radiology, Ronald Reagan Medical Center at UCLA, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, United States
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Saad WEA, Davies MG, Saad NEA, Westesson KE, Patel NC, Sahler LG, Lee DE, Kitanosono T, Sasson T, Waldman DL. Catheter Thrombolysis of Thrombosed Hepatic Arteries in Liver Transplant Recipients: Predictors of Success and Role of Thrombolysis. Vasc Endovascular Surg 2016; 41:19-26. [PMID: 17277239 DOI: 10.1177/1538574406296210] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Hepatic artery thrombosis is an uncommon complication of liver transplantation. However, it is a major indication for re-transplantation. The use of transcatheter thrombolysis and subsequent surgical revascularization as a graft salvage procedure is discussed. Four of 5 cases (80%) were successful in re-establishing flow and uncovering underlying arterial anatomic defects. None were treated definitively by endoluminal measures due to an inability to resolve the underlying anatomic defects. However, 2 of 5 cases (40%) went on to a successful surgical revascularization and represent successful long-term outcome of transcatheter thrombolysis followed by definitive surgical revascularization. We conclude that, definitive endoluminal success cannot be achieved without resolving associated, and possibly instigating, underlying arterial anatomical defects. However, reestablishing flow to the graft can unmask underlying lesions as well as asses surrounding vasculature thus providing anatomical information for a more elective, better planned and definitive surgical revision.
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Affiliation(s)
- Wael E A Saad
- Department of Imaging Sciences, Section of Vascular/Interventional Radiology, University of Rochester Medical Center, 601 Elmwood Avenue, New York, NY 14642, USA.
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Pulitano C, Joseph D, Sandroussi C, Verran D, Strasser SI, Shackel NA, McCaughan GW, Crawford M. Hepatic artery stenosis after liver transplantation: is endovascular treatment always necessary? Liver Transpl 2015; 21:162-8. [PMID: 25378262 DOI: 10.1002/lt.24043] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Revised: 09/15/2014] [Accepted: 10/12/2014] [Indexed: 12/12/2022]
Abstract
Hepatic artery stenosis (HAS) is thought to predispose patients to biliary complications secondary to ischemic injury. Despite this, the clinical significance of HAS remains poorly defined. The aims of this study were to determine the prevalence and outcomes of HAS and to define which patients might benefit from endovascular treatment. From a prospective database of 662 adult patients undergoing liver transplantation between 2000 and 2011, we identified 54 patients who developed HAS. HAS was defined as any stenosis > 70% that was seen during multidetector computed tomographic angiography (MDCTA) or digital subtraction angiography. The benefit of endovascular therapy was evaluated with propensity score matching. New biliary complications occurred in 17 patients (31.4%), and 23 of the 54 study patients with HAS received endovascular treatment. Among the propensity score-matched patients, the biliary stricture-free survival time was significantly longer for those who received endovascular therapy (P = 0.03). An incidental diagnosis (P = 0.07) and a time from transplantation > 6 months (P = 0.021) were associated with a reduced risk of developing biliary stricture. Patients with symptomatic HAS who received treatment had better biliary stricture-free survival than patients who were treated conservatively, although no significant difference was recorded (P = 0.11). No patient with asymptomatic HAS and normal liver function tests developed biliary strictures. In conclusion, HAS intervention was associated with improved biliary stricture-free survival. In patients with late-onset HAS (≥6 months) and asymptomatic patients, endovascular treatment is not warranted.
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Affiliation(s)
- Carlo Pulitano
- Australian National Liver Transplant Unit, Royal Prince Alfred Hospital, Sydney, Australia; Centenary Research Institute, University of Sydney, Sydney, Australia
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Saad WE. Management of Hepatic Artery Steno-Occlusive Complications After Liver Transplantation. Tech Vasc Interv Radiol 2007; 10:207-20. [PMID: 18086426 DOI: 10.1053/j.tvir.2007.09.015] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Gladysz-Polak A, Polak WG, Jazwiec P, Chudoba PJ, Halon A, Patrzalek D, Szyber P. Favorable resolution of hepatic infarctions in transplanted liver after portal vein thrombosis treated by surgical thrombectomy: a case report. Transplant Proc 2007; 38:3135-7. [PMID: 17112919 DOI: 10.1016/j.transproceed.2006.08.108] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2006] [Indexed: 12/27/2022]
Abstract
Portal vein thrombosis (PVT) after orthotopic liver transplantation (OLT) is a life-threatening complication associated with a high rate of graft loss and patient death, with reported incidence of 1% to 2% in adults. We report a case of an early PVT after OLT complicated by hepatic infarctions in the liver graft. After surgical thrombectomy and restoration of the portal inflow, hepatic infarctions resolved spontaneously within 6 months, which was confirmed by computed tomography.
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Abstract
Improvements in surgical technique, advances in the field of immunosuppresion and the early diagnosis and treatment of complications related to liver transplantation have all led to prolonged survival after liver transplantation. In particular, advances in diagnostic and interventional radiology have allowed the Interventional Radiologist, as part of the transplant team, to intervene early in patients presenting with complications related to organ transplant with resultant increase in graft and patient survival. Such interventions are often achieved using minimally invasive percutaneous endovascular techniques. Herein we present an overview of some of these diagnostic and therapeutic approaches in the treatment and management of patients before and after liver transplantation.
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Affiliation(s)
- Nikhil B Amesur
- Department of Radiology, Division of Vascular and Interventional Radiology, University of Pittsburgh Medical Center, Pittsburgh, PA 15213, USA.
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Saad WEA, Davies MG, Sahler L, Lee DE, Patel NC, Kitanosono T, Sasson T, Waldman DL. Hepatic artery stenosis in liver transplant recipients: primary treatment with percutaneous transluminal angioplasty. J Vasc Interv Radiol 2005; 16:795-805. [PMID: 15947043 DOI: 10.1097/01.rvi.0000156441.12230.13] [Citation(s) in RCA: 72] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
PURPOSE To evaluate the efficacy of hepatic artery percutaneous transluminal angioplasty (PTA) in the treatment of hepatic artery stenosis (HAS). MATERIALS AND METHODS A retrospective analysis was performed of all cases of HAS documented by angiography from January 1995 to June 2003 at the authors' institution. Management was evaluated and long-term patency was documented by Doppler ultrasonography. The patency, restenosis, and hepatic artery thrombosis (HAT) rates were determined by the Kaplan-Meier method. The technical success of hepatic artery PTA was stratified according to the location of the stenoses relative to the anastomosis, as well as by the presence of associated hepatic arterial kinks. RESULTS Thrombosis was seen in 65% +/- 13% of untreated HAS cases within 6 months. Stenotic lesions without associated arterial kinks had an improved technical success rate and a reduced complication rate of 94% and 10%, respectively, compared with lesions with associated hepatic arterial kinks treated with hepatic artery PTA (14% and 29%, respectively). The 1-year primary and primary assisted patency rates of hepatic artery PTA for all lesions were 44% +/- 12% and 60% +/- 11%, respectively, and were 65% +/- 10% and 80% +/- 8%, respectively, for lesions not associated with hepatic arterial kinks. The 1-year HAT rate and restenosis rate after hepatic artery PTA were 19% +/- 10% and 32% +/- 11%, respectively. The 1-year primary assisted patency rate for hepatic artery PTA with repeat PTA performed for restenosed lesions and surgical revascularization performed for failed PTA was 74% +/- 10%. CONCLUSIONS Untreated HAS carries a high morbidity rate. Hepatic artery PTA can play a large role in the management of HAS by reducing the HAT rate more than threefold. With appropriate lesion selection, hepatic artery PTA will have better patency rates than those associated with hepatic artery stent placement.
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Affiliation(s)
- Wael E A Saad
- Departments of Radiology and Surgery, University of Rochester Medical Center, 601 Elmwood Avenue, Box 648, Rochester, NY 14642-8648, USA.
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Saad WEA, Saad NEA, Davies MG, Lee DE, Patel NC, Sahler LG, Kitanosono T, Sasson T, Waldman DL. Transhepatic Balloon Dilation of Anastomotic Biliary Strictures in Liver Transplant Recipients: The Significance of a Patent Hepatic Artery. J Vasc Interv Radiol 2005; 16:1221-8. [PMID: 16151063 DOI: 10.1097/01.rvi.0000173281.69988.57] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
PURPOSE To determine the significance of hepatic artery steno-occlusive disease on the patency of anastomotic biliary strictures in liver transplant recipients after transhepatic balloon dilation. MATERIALS AND METHODS A retrospective review of records of all patients undergoing transhepatic balloon dilation for anastomotic biliary strictures after orthotopic liver transplantation was performed over an 8-year period. Patency of the anastomosis was based on subsequent cholangiography. The presence of hepatic artery steno-occlusive disease was determined by Doppler ultrasound and/or angiography. The anastomotic biliary stricture patency rates were calculated by the Kaplan-Meier method. RESULTS Thirty-eight patients who had undergone liver transplants underwent 53 balloon dilations for anastomotic biliary strictures (nine patients for arterial disease, 26 patients had patent arteries and three patients had arteries of indeterminate patency). Eight of the 53 strictures treated (15%) were refractory to balloon dilation: 10.5% of first comers and 27% of restenotic lesions. Two of the 53 strictures treated (4%) had significant complications: hemobilia requiring blood transfusion and ductal rupture. One-year cumulative primary patency rates for anastomotic biliary strictures for patients with arterial disease, patent hepatic arteries, and all-comers were: 0%, 45% (P = .01), and 36%, respectively. One-year cumulative primary patency rates for choledocho-choledocal and choledocho-jejunal anstomoses in patients with patent arteries were 43% and 48%, respectively (P = .10). CONCLUSIONS In the presence of hepatic artery disease there is a lower patency of anastomotic biliary strictures after balloon dilation. Imaging of the hepatic artery should be considered to stratify patients who will have a successful outcome.
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Affiliation(s)
- Wael E A Saad
- Section of Vascular Interventional Radiology, Department of Radiology, University of Rochester Medical Center, 601 Elmwood Avenue, Box 648, Rochester, New York 14642, USA.
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Nemcek AA. Arterial Complications. J Vasc Interv Radiol 2002. [DOI: 10.1016/s1051-0443(02)70045-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Newmark GM, Hackworth C, Dachman AH. CT diagnosis of reversible liver transplant ischemia. Clin Radiol 1999; 54:776-8. [PMID: 10580772 DOI: 10.1016/s0009-9260(99)91184-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- G M Newmark
- The University of Chicago, Department of Radiology, IL 60637, USA
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Orons PD, Zajko AB, Bron KM, Trecha GT, Selby RR, Fung JJ. Hepatic artery angioplasty after liver transplantation: experience in 21 allografts. J Vasc Interv Radiol 1995; 6:523-9. [PMID: 7579858 DOI: 10.1016/s1051-0443(95)71128-9] [Citation(s) in RCA: 69] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
PURPOSE To assess whether percutaneous transluminal angioplasty (PTA) can help prolong allograft survival and improve allograft function in patients with hepatic artery stenosis after liver transplantation. PATIENTS AND METHODS Hepatic artery PTA was attempted in 19 patients with 21 allografts over 12 years. The postangioplasty clinical course was retrospectively analyzed. Liver enzyme levels were measured before and after PTA to determine if changes in liver function occurred after successful PTA. RESULTS Technical success was achieved in 17 allografts (81%). Retransplantation was required for four of 17 allografts (24%) in which PTA was successful and four of four allografts in which PTA was unsuccessful; this difference was significant (P = .03). Two major procedure-related complications occurred: an arterial leak that required surgical repair and an extensive dissection that necessitated retransplantation 14 months after PTA. Hepatic failure necessitated repeat transplantation in seven cases from 2 weeks to 27 months (mean, 8.4 months) after PTA. Six patients died during follow-up, three of whom had undergone repeat transplantation. Markedly elevated liver enzyme levels at presentation were associated with an increased risk of retransplantation or death regardless of the outcome of PTA. CONCLUSION PTA of hepatic artery stenosis after liver transplantation is relatively safe and may help decrease allograft loss due to thrombosis. Marked allograft dysfunction at presentation is a poor prognostic sign; thus, timely intervention is important.
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Affiliation(s)
- P D Orons
- Department of Radiology, University of Pittsburgh Medical Center, PA 15213, USA
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Orons PD, Zajko AB. ANGIOGRAPHY AND INTERVENTIONAL PROCEDURES IN LIVER TRANSPLANTATION. Radiol Clin North Am 1995. [DOI: 10.1016/s0033-8389(22)00306-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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