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Barbosa-Lima GB, Oderich GS, Dias-Neto M, Tenorio ER, Marcondes GB, Mendes BC, Ozbek P, Macedo TA. Effectiveness of Intra-operative Contrast-Enhanced Ultrasound Assessment to Optimize Type II Endoleak Embolization. Cardiovasc Intervent Radiol 2024; 47:354-359. [PMID: 38153421 DOI: 10.1007/s00270-023-03636-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 11/26/2023] [Indexed: 12/29/2023]
Abstract
PURPOSE To analyze the effectiveness of type II endoleaks (T2E) embolization using intra-operative contrast-enhanced ultrasound (CEUS). METHODS Consecutive patients treated for T2E underwent a standardized protocol with trans-arterial or trans-lumbar access, large volume embolization, onlay fusion, and intra-operative CEUS. Technical success was defined by exclusion of endoleak by CEUS. RESULTS Twenty-six patients (mean age 81 ± 11 years old; 89% male) were treated. The mean aneurysm sac enlargement was 11 ± 8 mm from T2E diagnosis. Embolization was performed using Onyx® 18 in all patients with adjunctive coils in 13 patients (50%). After the first embolization, CEUS documented residual T2E in 13 patients (50%). Ten patients (38%) had additional embolization, which successfully eradicated the T2E in seven of them. Technical success was 50% after the first embolization attempt and 77% after additional attempts guided by CEUS (P = 0.080). There was no mortality. Median imaging follow-up was 22 months. Among the 20 patients with no residual T2E on completion CEUS, 16 (80%) had sac stabilization and none required additional interventions for T2E. Of the six patients with residual T2Es on CEUS, three had sac stabilization (50%) and one required additional reintervention for T2E. There was one late aortic rupture at 56 months. CONCLUSION One in two patients treated by T2E embolization had residual endoleak on intra-operative CEUS after a first embolization attempt, decreasing to one in four patients after multiple attempts. A negative completion CEUS following embolization was associated with higher rates of sac stabilization and no need for additional T2E embolization.
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Affiliation(s)
- Guilherme B Barbosa-Lima
- Division of Vascular and Endovascular Surgery, Mayo Clinic, Rochester, MN, USA
- McGovern Medical School, The University of Texas Health Science Center at Houston, 6400 Fannin Street Suite 2850, Houston, TX, 77030, USA
| | - Gustavo S Oderich
- McGovern Medical School, The University of Texas Health Science Center at Houston, 6400 Fannin Street Suite 2850, Houston, TX, 77030, USA
| | - Marina Dias-Neto
- McGovern Medical School, The University of Texas Health Science Center at Houston, 6400 Fannin Street Suite 2850, Houston, TX, 77030, USA
| | - Emanuel R Tenorio
- McGovern Medical School, The University of Texas Health Science Center at Houston, 6400 Fannin Street Suite 2850, Houston, TX, 77030, USA
| | - Giulianna B Marcondes
- McGovern Medical School, The University of Texas Health Science Center at Houston, 6400 Fannin Street Suite 2850, Houston, TX, 77030, USA
| | - Bernardo C Mendes
- Division of Vascular and Endovascular Surgery, Mayo Clinic, Rochester, MN, USA
| | - Pinar Ozbek
- Diagnostic Imaging, General Electric Healthcare, Milwaukee, WI, USA
| | - Thanila A Macedo
- McGovern Medical School, The University of Texas Health Science Center at Houston, 6400 Fannin Street Suite 2850, Houston, TX, 77030, USA.
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Chun JY, de Haan M, Maleux G, Osman A, Cannavale A, Morgan R. CIRSE Standards of Practice on Management of Endoleaks Following Endovascular Aneurysm Repair. Cardiovasc Intervent Radiol 2024; 47:161-176. [PMID: 38216742 PMCID: PMC10844414 DOI: 10.1007/s00270-023-03629-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2023] [Accepted: 11/19/2023] [Indexed: 01/14/2024]
Abstract
BACKGROUND Endoleaks represent the most common complication after EVAR. Some types are associated with ongoing risk of aneurysm rupture and necessitate long-term surveillance and secondary interventions. PURPOSE This document, as with all CIRSE Standards of Practice documents, will recommend a reasonable approach to best practices of managing endoleaks. This will include imaging diagnosis, surveillance, indications for intervention, endovascular treatments and their outcomes. Our purpose is to provide recommendations based on up-to-date evidence, updating the guidelines previously published on this topic in 2013. METHODS The writing group was established by the CIRSE Standards of Practice Committee and consisted of clinicians with internationally recognised expertise in endoleak management. The writing group reviewed the existing literature performing a pragmatic evidence search using PubMed to select publications in English and relating to human subjects up to 2023. The final recommendations were formulated through consensus. RESULTS Endoleaks may compromise durability of the aortic repair, and long-term imaging surveillance is necessary for early detection and correct classification to guide potential re-intervention. The majority of endoleaks that require treatment can be managed using endovascular techniques. This Standards of Practice document provides up-to-date recommendations for the safe management of endoleaks.
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Affiliation(s)
- Joo-Young Chun
- St George's University Hospitals NHS Foundation Trust, London, UK.
- St George's University of London, London, UK.
| | - Michiel de Haan
- Maastricht University Medical Center, Maastricht, The Netherlands
| | | | - Asaad Osman
- St George's University Hospitals NHS Foundation Trust, London, UK
| | | | - Robert Morgan
- St George's University Hospitals NHS Foundation Trust, London, UK
- St George's University of London, London, UK
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Zehtabi F, Gangrade A, Tseng K, Haghniaz R, Abasgholizadeh R, Montazerian H, Khorsandi D, Bahari J, Ahari A, Mohaghegh N, Kouchehbaghi NH, Mandal K, Mecwan M, Rashad A, de Barros NR, Byun Y, Ermis M, Kim HJ, Khademhosseini A. Injectable Shear-Thinning Hydrogels with Sclerosing and Matrix Metalloproteinase Modulatory Properties for the Treatment of Vascular Malformations. ADVANCED FUNCTIONAL MATERIALS 2023; 33:2305880. [PMID: 38558868 PMCID: PMC10977963 DOI: 10.1002/adfm.202305880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Indexed: 04/04/2024]
Abstract
Sac embolization of abdominal aortic aneurysms (AAAs) remains clinically limited by endoleak recurrences. These recurrences are correlated with recanalization due to the presence of endothelial lining and matrix metalloproteinases (MMPs)-mediated aneurysm progression. This study incorporated doxycycline (DOX), a well-known sclerosant and MMPs inhibitor, into a shear-thinning biomaterial (STB)-based vascular embolizing hydrogel. The addition of DOX was expected to improve embolizing efficacy while preventing endoleaks by inhibiting MMP activity and promoting endothelial removal. The results showed that STBs containing 4.5% w/w silicate nanoplatelet and 0.3% w/v of DOX were injectable and had a 2-fold increase in storage modulus compared to those without DOX. STB-DOX hydrogels also reduced clotting time by 33% compared to untreated blood. The burst release of DOX from the hydrogels showed sclerosing effects after 6 h in an ex vivo pig aorta model. Sustained release of DOX from hydrogels on endothelial cells showed MMP inhibition (ca. an order of magnitude larger than control groups) after 7 days. The hydrogels successfully occluded a patient-derived abdominal aneurysm model at physiological blood pressures and flow rates. The sclerosing and MMP inhibition characteristics in the engineered multifunctional STB-DOX hydrogels may provide promising opportunities for the efficient embolization of aneurysms in blood vessels.
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Affiliation(s)
- Fatemeh Zehtabi
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
| | - Ankit Gangrade
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
| | - Kaylee Tseng
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
- Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles, California 90007, United States
| | - Reihaneh Haghniaz
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
| | - Reza Abasgholizadeh
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
| | - Hossein Montazerian
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, California 90095, United States
- California NanoSystems Institute, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Danial Khorsandi
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
| | - Jamal Bahari
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
| | - Amir Ahari
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
| | - Neda Mohaghegh
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
| | - Negar Hosseinzadeh Kouchehbaghi
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
- Department of Textile Engineering, Amirkabir University of Technology (Tehran Polytechnic), Hafez Avenue, 1591634311 Tehran, Iran
| | - Kalpana Mandal
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
| | - Marvin Mecwan
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
| | - Ahmad Rashad
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
| | | | - Youngjoo Byun
- College of Pharmacy, Korea University, Sejong 30019, Republic of Korea
| | - Menekse Ermis
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
| | - Han-Jun Kim
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
- College of Pharmacy, Korea University, Sejong 30019, Republic of Korea
- Vellore Institute of Technology (VIT), Vellore, India, 632014
| | - Ali Khademhosseini
- Terasaki Institute for Biomedical Innovation, Los Angeles, California 90064, United States
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Yanamaladoddi VR, Sarvepalli SS, Vemula SL, Aramadaka S, Mannam R, Sankara Narayanan R, Bansal A. The Challenge of Endoleaks in Endovascular Aneurysm Repair (EVAR): A Review of Their Types and Management. Cureus 2023; 15:e39775. [PMID: 37398777 PMCID: PMC10312356 DOI: 10.7759/cureus.39775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/31/2023] [Indexed: 07/04/2023] Open
Abstract
An abdominal aortic aneurysm (AAA) is a dilatation of the abdominal aorta above 3 cm or 50% greater than the segment above. It is a dangerous condition accounting for a substantial number of deaths per year and increasing at an alarming rate. Various factors come into play in the development of AAAs, which this study has elaborated on, including smoking and old age, demographics, and comorbid conditions. Endovascular aneurysm repair (EVAR) is a newer treatment modality used for AAAs in which an endograft device is placed into the aorta, thereby creating a bypass tract from the aneurysm and generating flow mimicking that of the natural aorta. It is minimally invasive and associated with less postoperative mortality and reduced hospital stay. However, EVAR is also associated with significant postoperative complications, including endoleaks, which were reviewed in depth. Endoleaks are postprocedural leaks into the aneurysm sac that are usually identified immediately after graft placement and indicate treatment failure. They are of five subtypes, categorized according to their mechanism of development. The most common type is type II endoleaks, and the most dangerous is type I endoleaks. Each subtype has multiple management options with varying rates of success. Prompt identification along with appropriate treatment of endoleaks can lead to better postoperative outcomes and improved quality of life for patients.
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Affiliation(s)
| | | | | | | | - Raam Mannam
- Research, Narayana Medical College, Nellore, IND
| | | | - Arpit Bansal
- Research, Narayana Medical College, Nellore, IND
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Mostafa K, Schierenbeck M, Trentmann J, Gottschalk H, Andersson J, Pfarr J, Sieren M, Jansen O, Schäfer PJ. Endovascular Aneurysm Sac Embolization for Treatment of Ruptured Aneurysms in the Aortoiliac Segment Using N-Butyl-Cyanoacrylate. Life (Basel) 2023; 13:life13040919. [PMID: 37109448 PMCID: PMC10145858 DOI: 10.3390/life13040919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/09/2023] [Accepted: 03/29/2023] [Indexed: 04/03/2023] Open
Abstract
Background Aneurysmal rupture in the aortoiliac segment is a severe, life-threatening condition. Nowadays, in addition to surgical treatment, the implantation of a covered stent graft constitutes a feasible, minimally invasive treatment option. A novel approach is the add-on of transarterial aneurysm sac embolization with N-butyl-cyanoacrylate (NBCA). Here, we report our experience of performing this add-on embolization procedure after endovascular aneurysm repair for complex ruptured aneurysms of the aortoiliac segment. Material and Methods We describe six patients (mean age of 75.2 years; all male) with ruptured aneurysms in the visceral aortic and aortoiliac segment in whom a high-volume transarterial aneurysm sac embolization was performed as an add-on therapy to the implantation of an aortic prosthesis. The aim of this add-on intervention was to achieve the definite embolization of the aneurysmal rupture site and to ensure the best possible aneurysmal sealing. We report the feasibility, technical success, and considerations of using NBCA as well as clinical and follow-up imaging results, given their availability. Results Technical success was achieved in all cases. Clinical success was achieved in four cases. No periprocedural complications or reinterventions were reported. The mean full procedure time was 107.8 min. The mean radiation dose was 12,966.1 cGy/cm2. A mean amount of 10.7 mL of NBCA mixed with lipiodol in a 1:3 to 1:5 ratio was used for all patients. Available follow-up imaging up to 36 months after the procedure showed no aneurysm progression or endoleaks. In two patients, the NBCA cast had almost fully dissolved over the course of follow-up. Conclusions Our study underscores the notion that aneurysm sac embolization using high volumes of NBCA with ethiodized oil as an embolic agent is a feasible and add-on treatment option for optimizing the exclusion of the aneurysm from patients with ruptured aneurysms in the aortoiliac segment.
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Affiliation(s)
- Karim Mostafa
- Department for Radiology and Neuroradiology, University Hospital Schleswig Holstein, Campus Kiel, 24105 Kiel, Germany
| | - Marie Schierenbeck
- Department for Radiology and Neuroradiology, University Hospital Schleswig Holstein, Campus Kiel, 24105 Kiel, Germany
| | - Jens Trentmann
- Department for Radiology and Neuroradiology, University Hospital Schleswig Holstein, Campus Kiel, 24105 Kiel, Germany
| | - Hannes Gottschalk
- Department for Radiology and Neuroradiology, University Hospital Schleswig Holstein, Campus Kiel, 24105 Kiel, Germany
| | - Julian Andersson
- Department for Radiology and Neuroradiology, University Hospital Schleswig Holstein, Campus Kiel, 24105 Kiel, Germany
| | - Julian Pfarr
- Department for Radiology and Neuroradiology, University Hospital Schleswig Holstein, Campus Kiel, 24105 Kiel, Germany
| | - Malte Sieren
- Department of Radiology and Nuclear Medicine, University Hospital Schleswig-Holstein, Campus Lübeck, 23569 Lübeck, Germany
- Institute of Interventional Radiology, University Hospital Schleswig-Holstein, Campus Lübeck, 23569 Lübeck, Germany
| | - Olav Jansen
- Department for Radiology and Neuroradiology, University Hospital Schleswig Holstein, Campus Kiel, 24105 Kiel, Germany
| | - Philipp J. Schäfer
- Department for Radiology and Neuroradiology, University Hospital Schleswig Holstein, Campus Kiel, 24105 Kiel, Germany
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Vance AZ, Graif A, Patel R, Chedrawy C, Chohan O, Garcia MJ, Kimbiris G, Leung DA. Outcome and technical evolution of type 2 endoleak embolization with ethylene-vinyl-alcohol copolymer. Vascular 2023; 31:10-17. [PMID: 35229689 DOI: 10.1177/17085381211053409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
PURPOSE This study aims to evaluate the safety and efficacy of novel approaches to type 2 endoleak access for the purpose of embolization using ethylene-vinyl-alcohol copolymer (EVOH) in patients with abdominal aortic aneurysm (AAA) sac expansion post endovascular abdominal aortic repair (EVAR). METHODS A retrospective review of 43 consecutive patients (mean age = 80.2 ± 6.7 years) who underwent 52 embolization procedures for type 2 endoleaks using EVOH was performed at a single institution. Catheterization of the endoleaks was achieved using the transarterial (TA) and direct translumbar approaches (DTL), in addition to the novel direct transabdominal (DTA) and perigraft (PG) approaches. Endpoints included technical success of endoleak catheterization, technical success of endoleak embolization, endoleak persistence, endoleak recurrence, AAA sac area change, and adverse events. RESULTS The TA, DTL, DTA, and PG approaches were used 25, 2, 14, and 19 times respectively, including nine procedures where a combination of approaches was used. The technical success rate of endoleak embolization was 98%. Five patients developed recurrent type 2 endoleaks, while five patients developed a type 1 endoleak. The persistent endoleak rate at a mean initial follow-up of 3 months was 34%. At a mean follow-up of 18 months, 58% of patients demonstrated absence of an endoleak, and 71% showed freedom from AAA sac enlargement. No major adverse events were recorded. CONCLUSION The DTA and PG approaches were safe and effective in this cohort of patients undergoing embolization of type 2 endoleaks with EVOH.
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Affiliation(s)
- Ansar Z Vance
- Division of Interventional Radiology, Department of Radiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Assaf Graif
- Department of Vascular Interventional Radiology, Christiana Care Health System, Newark, DE, USA
| | - Ramkrishna Patel
- Department of Vascular Interventional Radiology, Albany Medical Center, Albany, NY, USA
| | - Christelle Chedrawy
- Department of Vascular Interventional Radiology, Christiana Care Health System, Newark, DE, USA
| | - Omar Chohan
- Great Lakes Medical Imaging, Buffalo, NY, USA
| | - Mark J Garcia
- Endovascular Consultants of Delaware, Wilmington, DE, USA
| | - George Kimbiris
- Department of Vascular Interventional Radiology, Christiana Care Health System, Newark, DE, USA
| | - Daniel A Leung
- Department of Vascular Interventional Radiology, Christiana Care Health System, Newark, DE, USA
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Ko G, Choi JW, Lee N, Kim D, Hyeon T, Kim HC. Recent progress in liquid embolic agents. Biomaterials 2022; 287:121634. [PMID: 35716628 DOI: 10.1016/j.biomaterials.2022.121634] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 06/08/2022] [Accepted: 06/10/2022] [Indexed: 11/21/2022]
Abstract
Vascular embolization is a non-surgical procedure used to treat diseases or morbid conditions related to blood vessels, such as bleeding, arteriovenous malformation, aneurysm, and hypervascular tumors, through the intentional occlusion of blood vessels. Among various types of embolic agents that have been applied, liquid embolic agents are gaining an increasing amount of attention owing to their advantages in distal infiltration into regions where solid embolic agents cannot reach, enabling more extensive embolization. Meanwhile, recent advances in biomaterials and technologies have also contributed to the development of novel liquid embolic agents that can resolve the challenges faced while using the existing embolic materials. In this review, we briefly summarize the clinically used embolic agents and their applications, and then present selected research results that overcome the limitations of the embolic agents in use. Through this review, we suggest the required properties of liquid embolic agents that ensure efficacy, which can replace the existing agents, providing directions for the future development in this field.
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Affiliation(s)
- Giho Ko
- Center for Nanoparticle Research, Institute for Basic Spegcience (IBS), Seoul 08826, Republic of Korea; School of Chemical and Biological Engineering, and Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
| | - Jin Woo Choi
- Department of Radiology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul 03080, Republic of Korea
| | - Nohyun Lee
- School of Advanced Materials Engineering, Kookmin University, Seoul 02707, Republic of Korea
| | - Dokyoon Kim
- Department of Bionano Engineering and Bionanotechnology, Hanyang University, Ansan 15588, Republic of Korea.
| | - Taeghwan Hyeon
- Center for Nanoparticle Research, Institute for Basic Spegcience (IBS), Seoul 08826, Republic of Korea; School of Chemical and Biological Engineering, and Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea.
| | - Hyo-Cheol Kim
- Department of Radiology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul 03080, Republic of Korea.
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Hauck SR, Schernthaner R, Dachs TM, Kern M, Funovics M. Endovaskuläre Aortenreparatur bei Endoleaks. DIE RADIOLOGIE 2022; 62:592-600. [PMID: 35736998 PMCID: PMC9242926 DOI: 10.1007/s00117-022-01033-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Accepted: 05/31/2022] [Indexed: 11/25/2022]
Abstract
Sämtliche Patienten nach endovaskulärer Versorgung eines Aortenaneurysmas bedürfen einer regelmäßigen Nachkontrolle, zumeist in jährlichem Abstand. Der kontrastmittelverstärkte Ultraschall und die Computertomographie-Angiographie (CTA) sind die wichtigsten diagnostischen Modalitäten für die Erkennung von Endoleaks. Die (CTA) erlaubt eine bessere Unterscheidung der verschiedenen Endoleak-Typen. Sogenannte Hochdruck-Endoleaks (Typ I und Typ III) stellen, wenn sich nicht kurzzeitig ein Spontanverschluss zeigt, eine absolute Indikation zur Nachbehandlung dar. Typ-II-Endoleaks weisen in der Mehrzahl einen benignen Verlauf auf. Wenn kein Wachstum des Aneurysmasacks erfolgt, kann eine Nachkontrolle im gewohnten Intervall durchgeführt werden. Typ-II-Endoleaks mit assoziiertem Wachstum des Aneurysmasacks können durch Embolisation der verantwortlichen Gefäße behandelt werden. Ob eine Behandlung immer durchgeführt werden muss, ist umstritten. Eine Behandlungsindikation von einem Typ-II-Endoleak mit wachsendem Aneurysmasack ist jedoch gegeben, wenn durch eine Verkürzung des Aneurysmahalses ein sekundäres Typ-I-Endoleak droht. Typ-I-Endoleaks stellen die Hauptlimitation der Stentgraft-Therapie dar. Die beste Prävention eines Typ-I-Endoleaks ist die Bereitstellung einer adäquaten proximalen Landezone. Dies kann durchaus bedeuten, dass fenestrierte Stentgrafts verwendet werden müssen. Die Verwendung von Schrauben oder anderen Fixationsinstrumenten zur sicheren Behandlung auch kurzer Hälse ist derzeit noch in der Studienphase.
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Affiliation(s)
- Sven Rudolf Hauck
- Abteilung für Kardiovaskuläre und Interventionelle Radiologie, Universitätsklinik für Radiologie und Nuklearmedizin, Medizinische Universität Wien, Währinger Gürtel 18-20, 1090, Wien, Österreich
| | - Rüdiger Schernthaner
- Zentrales Radiologie Institut - Diagnostische und Interventionelle Radiologie, Klinik Landstraße, Wien, Österreich
| | - Theresa-Marie Dachs
- Abteilung für Kardiovaskuläre und Interventionelle Radiologie, Universitätsklinik für Radiologie und Nuklearmedizin, Medizinische Universität Wien, Währinger Gürtel 18-20, 1090, Wien, Österreich
| | - Maximilian Kern
- Institut für Radiologie, Klinik Floridsdorf, Wien, Österreich
| | - Martin Funovics
- Abteilung für Kardiovaskuläre und Interventionelle Radiologie, Universitätsklinik für Radiologie und Nuklearmedizin, Medizinische Universität Wien, Währinger Gürtel 18-20, 1090, Wien, Österreich.
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9
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Akmal MM, Pabittei DR, Prapassaro T, Suhartono R, Moll FL, van Herwaarden JA. A systematic review of the current status of interventions for type II endoleak after EVAR for abdominal aortic aneurysms. Int J Surg 2021; 95:106138. [PMID: 34637951 DOI: 10.1016/j.ijsu.2021.106138] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 08/18/2021] [Accepted: 10/04/2021] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To study the mid- and long-term outcomes of type II endoleak treatment after EVAR and the technical aspects of different techniques to exclude endoleaks which different embolic agents. METHODS A systematic review was performed using the approach recommended by the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines for meta-analyses of interventional studies. The comprehensive search was conducted using the following database: MEDLINE, EMBASE, and the Cochrane Library. Patient characteristic, intervention approaches, embolic agents, and results at mid and long term follow up were studied. RESULTS A total of 6 studies corresponding to a total of 141 patients fulfilled the inclusion criteria with a mean age of 73-78.6 years and a mean duration of follow up varying from 25 to 42 months. There were different techniques for embolization used (translumbar, transarterial, and transcaval approach) with various types of embolic agents. In all studies, the indication for embolization of the type II endoleaks was sac enlargement of more than 5 mm. A wide range of technical success rate was reported regardless of the intervention strategy being used (17,6%-100%). The overall technical success rate of all studies was 62%. CONCLUSION This systematic review shows that there is a wide variety of techniques to exclude a persistent type II endoleak. Different kinds of embolic agents have be used. Due to a lack of peer reviewed data on longterm follow-up, it was not possible to come to recommendations what treatment would be the best for a durable exclusion of a persistent type II endoleak after an initially successful EVAR. There remains an urgent need for proper executed studies, either randomized or with close observation in relation to longer follow-up.
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Affiliation(s)
- Marethania M Akmal
- Departement of vascular surgery, University Medical Center Utrecht, Utrecht, the Netherlands Vascular surgery Division, Departement of Surgery, Faculty of Medicine, Cipto Mangunkusumo Hospital, University of Indonesia, Indonesia Departement of Physiology, Hasanudin University, Indonesia Departement of vascular surgery, Siriraj Hospital, Mahidol University, Bangkok, Thailand
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10
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Nolte-Ernsting C, Mecklenbeck FP, Stehr A. Embolization of Type 2 Endoleaks in the Abdominal Aorta Using Ethylene Vinyl Alcohol Copolymer. ROFO : FORTSCHRITTE AUF DEM GEBIETE DER RONTGENSTRAHLEN UND DER NUKLEARMEDIZIN 2021; 193:1426-1435. [PMID: 34139782 DOI: 10.1055/a-1502-7883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
BACKGROUND Type 2 endoleaks (T2EL) are the most frequent complication following endovascular aortic repair. Multiple studies primarily deal with the technical and clinical success of the embolization of persisting T2EL, thereby revealing controversial outcomes. Current reports rarely focus on the detailed execution of such a complex interventional procedure with respect to the difficult anatomic setting. METHODS The present review provides an in-depth depiction and evaluation of the interventional methodology of the embolization of T2EL in the abdominal aorta with use of ethylene vinyl alcohol copolymer (EVOH). Complicating anatomic conditions are taken into account as well as technical and clinical success rates. RESULTS Using the transarterial approach, there are at least 4 different pathways to access the nidus of a T2EL. CT-guided direct puncture of the aneurysm sac provides an alternative method of high technical success. EVOH with its slow solidification characteristics enables good control to achieve complete filling of the T2EL. During the intervention, however, it remains difficult to meet exactly the embolization endpoint, especially in large T2ELs. CONCLUSION T2EL embolization using EVOH is an effective treatment with low major complication rates when conducted by skilled interventionists with detailed knowledge of diverse complex access routes. KEY POINTS · Many roads lead to Rome to access the nidus of a T2EL including diverse complex transarterial pathways and direct aneurysm sac puncture.. · Ethylene vinyl alcohol co-polymer enables good control for slow filling of the nidus with low risk of major complications.. · Identification of the embolization endpoint remains difficult during the procedure and may result in secondary interventions.. · Successful T2EL embolization requires detailed knowledge of all access routes to the nidus and skilled handling of liquid embolics.. CITATION FORMAT · Nolte-Ernsting C, Mecklenbeck F, Stehr A. Embolization of Type 2 Endoleaks in the Abdominal Aorta Using Ethylene Vinyl Alcohol Copolymer. Fortschr Röntgenstr 2021; DOI: 10.1055/a-1502-7883.
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Affiliation(s)
- Claus Nolte-Ernsting
- Klinik für Diagnostische und Interventionelle Radiologie, Evangelisches Krankenhaus Mülheim an der Ruhr, Mülheim an der Ruhr, Germany
| | - Frank-Peter Mecklenbeck
- Klinik für Diagnostische und Interventionelle Radiologie, Evangelisches Krankenhaus Mülheim an der Ruhr, Mülheim an der Ruhr, Germany
| | - Alexander Stehr
- Gefäßchirurgische Klinik, Evangelisches Krankenhaus Mülheim an der Ruhr, Germany
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11
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van Schaik TG, Meekel JP, Hoksbergen AWJ, de Vries R, Blankensteijn JD, Yeung KK. Systematic review of embolization of type I endoleaks using liquid embolic agents. J Vasc Surg 2021; 74:1024-1032. [PMID: 33940072 DOI: 10.1016/j.jvs.2021.03.061] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Accepted: 03/29/2021] [Indexed: 11/16/2022]
Abstract
OBJECTIVE The long-term success of endovascular aneurysm repair (EVAR) is limited by complications, most importantly endoleaks. In case of (persistent) type I endoleak (T1EL), secondary intervention is indicated to prevent secondary aneurysm rupture. Different treatment options are suggested for T1ELs, such as endo anchors, (fenestrated) cuffs, embolization, or open conversion. Currently, the treatment of T1EL with liquid embolic agents is available; however, results are not yet addressed. This review presents the safety and efficacy of embolization with liquid embolic agents for treatment of T1ELs after EVAR. METHODS A systematic literature search was performed for all studies reporting the use of liquid embolic agents as monotherapy for treatment of T1ELs after EVAR. Patient numbers, technical success (successful delivery of liquid embolics in the T1EL) and clinical success (absence of aneurysm related death, endoleak recurrence or additional interventions during follow-up) were examined. RESULTS Of 1604 articles, 10 studies met the selection criteria, including 194 patients treated with liquid embolics; 73.2% of the patients were male with a median age of 71 years. The overall technical success was 97.9%. Clinical success was 87.6%. Because the median follow-up was only 13.0 months (range, 1-89 months), data on long-term success are almost absent. Four cases (2.1%) of secondary aneurysm rupture after embolization owing to endoleak recurrence were reported. All ruptures occurred in aneurysms exceeding initial treatment diameter of 70 mm. CONCLUSIONS Initial technical success after liquid embolization for T1EL is high, although long-term clinical success rates are lacking. Within this review, the risk of secondary rupture is comparable with untreated T1EL at 2% with a median follow-up of 13 months, regardless of the initial success of embolization. In general, no decrease in secondary aneurysm rupture after embolization of T1EL after EVAR is demonstrated, although the results of late embolization are debated.
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Affiliation(s)
- Theodorus G van Schaik
- Department of Vascular Surgery, Amsterdam University Medical Center, Location VUmc, Amsterdam, Zaandam, The Netherlands; Amsterdam Cardiovascular Sciences, Amsterdam University Medical Center, Location VUmc, Amsterdam, Zaandam, The Netherlands; Department of Surgery, Zaans Medisch Centrum, Zaandam The Netherlands
| | - Jorn P Meekel
- Department of Vascular Surgery, Amsterdam University Medical Center, Location VUmc, Amsterdam, Zaandam, The Netherlands; Amsterdam Cardiovascular Sciences, Amsterdam University Medical Center, Location VUmc, Amsterdam, Zaandam, The Netherlands; Department of Surgery, Zaans Medisch Centrum, Zaandam The Netherlands
| | - Arjan W J Hoksbergen
- Department of Vascular Surgery, Amsterdam University Medical Center, Location VUmc, Amsterdam, Zaandam, The Netherlands
| | - Ralph de Vries
- Clinical Library, Amsterdam University Medical Center, Location VUmc, Amsterdam, The Netherlands
| | - Jan D Blankensteijn
- Department of Vascular Surgery, Amsterdam University Medical Center, Location VUmc, Amsterdam, Zaandam, The Netherlands
| | - Kak K Yeung
- Department of Vascular Surgery, Amsterdam University Medical Center, Location VUmc, Amsterdam, Zaandam, The Netherlands; Amsterdam Cardiovascular Sciences, Amsterdam University Medical Center, Location VUmc, Amsterdam, Zaandam, The Netherlands.
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Hamidizadeh R, Nzekwu E, Halliwell O. Factors Influencing Clinical Success Following Endovascular Treatment of Type II Endoleaks. Can Assoc Radiol J 2020; 72:890-897. [PMID: 33371728 DOI: 10.1177/0846537120981100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
PURPOSE To compare long-term outcomes of transarterial (TA) and translumbar (TL) embolization of type II endoleaks (T2E) following EVAR, as well as factors that predict clinical success. METHODS 129 (mean age, 71.4y; range, 53-95) with T2E referred for embolization from August-2003 to December-2017 were retrospectively reviewed. One-hundred-eighty procedures were performed via TA (n = 139) and TL (n = 41) approaches, with 37 patients undergoing 51 reinterventions. Clinical success was defined as absence of endoleak and/or absence of aneurysm sac enlargement on follow-up imaging. Medical comorbidities, procedural data, embolic agents used, presence of successful sac embolization, and 30-day morbidity and mortality data were collected. RESULTS TL approaches had higher technical success (41/41 vs.122/139, p = .014). Clinical success rates were 52% (N = 58/111) and 62% (N = 23/37) for TA and TL procedures respectively (p = .34). Looking at all procedures, sac embolization using n-butyl cyanoacrylate glue had higher clinical success compared to other embolic agents (p = .017-.037). Successful sac access was a strong predictor of success for TA procedures (46/78 vs.12/33, p = .0379). 30-day complication rates were similar between TA (5.8%) and TL (4.9%) approaches. There was 1 death secondary to graft infection following TA embolization. CONCLUSIONS Overall clinical success of TA and TL embolization when considering re-interventions is high. n-butyl cyanoacrylate glue had significantly higher success than other embolic agents (p = .017-.037). Successful sac access was associated with success for TA procedures.
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Affiliation(s)
- Ramin Hamidizadeh
- 70401Cumming School of Medicine, University of Calgary, Alberta, Canada
| | - Emeka Nzekwu
- 70401Cumming School of Medicine, University of Calgary, Alberta, Canada
| | - Oliver Halliwell
- 70401Cumming School of Medicine, University of Calgary, Alberta, Canada
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13
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Menges AL, Trenner M, Radu O, Beddoe D, Kallmayer M, Zimmermann A, Eckstein HH. Lack of durability after transarterial ethylene-vinyl alcohol copolymer-embolization of type II endoleak following endovascular abdominal aortic aneurysm repair. VASA 2020; 49:483-491. [PMID: 33103625 DOI: 10.1024/0301-1526/a000905] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Background: Type II endoleak (T2EL) after endovascular aortic repair is associated with AAA sac enlargements in up to 25%, reduction of attachment zones and rarely with aortic rupture. Indications for therapy and efficacy of interventions of T2EL are not clearly established. Transarterial embolization with application of ethylene-vinyl alcohol copolymer has been described with varying outcomes. Aim of this study is to evaluate durability of OnyxTM embolization (OE) in T2EL in a consecutive series at a single tertiary vascular center. Patients and methods: Demographic data, technical success, pre- and postoperative aneurysm growth, morbidity, mortality and reintervention rates during hospital stay as well as in follow up were recorded in patients treated with OE for T2EL between 01/2015 and 12/2017. The primary endpoint was defined as persistence or reoccurrence of T2EL (durability of OE). Results: In total 15 patients (78 ± 6 years, 13 men) were treated with OE because of sac enlargement (average growth of 12 ± 8%, n = 12), persistent bleeding after AAA rupture (n = 2) or persistent T2EL with stable but large aneurysm diameter (n = 1). Mean length of stay was 8 ± 11 days. Technical success was 93.3% (n = 14). Inhospital-morbidity was 26.7%, in-hospital- and 1-year-mortality rate were 6.6% (n = 1) and 20.0% (n = 3). T2EL persisted in 20.0% (n = 3) despite of OE. Re-EL-II occurred after 40 (30-114) days in 33.3% (n = 5). Reintervention rate was 13.3% (n = 2, at day 48 and 319). Altogether clinical success with stable aneurysm diameter was achieved in 80.0% (n = 12), but durable elimination of EL was only achieved in 46.7% of patients (n = 7). Conclusions: OE is technically possible in more than 90% of patients but might be associated with severe complications. Durability of this treatment is low, since T2EL persist or reoccur in more than 50% of all patients. OE of T2EL should be reserved for few selected cases.
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Affiliation(s)
- Anna-Leonie Menges
- Department for Vascular and Endovascular Surgery and Munich Aortic Center (MAC), University Hospital rechts der Isar, Technical University of Munich, Munich, Germany.,Department of Vascular Surgery, University Hospital Zurich, Zurich, Switzerland
| | - Matthias Trenner
- Department for Vascular and Endovascular Surgery and Munich Aortic Center (MAC), University Hospital rechts der Isar, Technical University of Munich, Munich, Germany
| | - Oksana Radu
- Department for Vascular and Endovascular Surgery and Munich Aortic Center (MAC), University Hospital rechts der Isar, Technical University of Munich, Munich, Germany
| | - Daisy Beddoe
- Department of Vascular Surgery, University Hospital Zurich, Zurich, Switzerland
| | - Michael Kallmayer
- Department for Vascular and Endovascular Surgery and Munich Aortic Center (MAC), University Hospital rechts der Isar, Technical University of Munich, Munich, Germany
| | - Alexander Zimmermann
- Department for Vascular and Endovascular Surgery and Munich Aortic Center (MAC), University Hospital rechts der Isar, Technical University of Munich, Munich, Germany.,Department of Vascular Surgery, University Hospital Zurich, Zurich, Switzerland
| | - Hans-Henning Eckstein
- Department for Vascular and Endovascular Surgery and Munich Aortic Center (MAC), University Hospital rechts der Isar, Technical University of Munich, Munich, Germany
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Ameli-Renani S, Pavlidis V, Morgan RA. Secondary Endoleak Management Following TEVAR and EVAR. Cardiovasc Intervent Radiol 2020; 43:1839-1854. [PMID: 32778905 PMCID: PMC7649162 DOI: 10.1007/s00270-020-02572-9] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Accepted: 06/22/2020] [Indexed: 11/01/2022]
Abstract
Endovascular abdominal and thoracic aortic aneurysm repair and are widely used to treat increasingly complex aneurysms. Secondary endoleaks, defined as those detected more than 30 days after the procedure and after previous negative imaging, remain a challenge for aortic specialists, conferring a need for long-term surveillance and reintervention. Endoleaks are classified on the basis of their anatomic site and aetiology. Type 1 and type 2 endoleaks (EL1 and EL2) are the most common endoleaks necessitating intervention. The management of these requires an understanding of their mechanics, and the risk of sac enlargement and rupture due to increased sac pressure. Endovascular techniques are the main treatment approach to manage secondary endoleaks. However, surgery should be considered where endovascular treatments fail to arrest aneurysm growth. This chapter reviews the aetiology, significance, management strategy and techniques for different endoleak types.
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Affiliation(s)
- Seyed Ameli-Renani
- Department of Radiology, St George's University Hospitals NHS Foundation Trust, London, UK
| | - Vyzantios Pavlidis
- Department of Radiology, St George's University Hospitals NHS Foundation Trust, London, UK
| | - Robert A Morgan
- Department of Radiology, St George's University Hospitals NHS Foundation Trust, London, UK. .,Vascular & Cardiac Surgery Research Centre, St George's University of London, Cranmer Terrace, London, SW17 ORE, UK.
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Direct percutaneous embolization of aneurysm sac: a safe and effective procedure to treat post-EVAR type II endoleaks. Radiol Med 2020; 126:258-263. [PMID: 32661779 DOI: 10.1007/s11547-020-01247-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 07/01/2020] [Indexed: 10/23/2022]
Abstract
PURPOSE To report safety and effectiveness of type II endoleak embolization, with percutaneous direct aneurysm sac puncture. MATERIALS AND METHODS Fifty patients, 31 male (mean age 55 ± 5), with post-EVAR type-II endoleak underwent direct percutaneous sac puncture for embolization. Procedures were performed, under local anesthesia. Sac puncture was done using a 20G needle under rotational angiography guidance. A coaxial system (4 Fr catheter + 2.7 microcatheter) was used to navigate the sac. During the follow-up period, all patients underwent contrast-enhanced ultrasound (CEUS) at 6 and 12 months. RESULTS Technical success, with complete exclusion of the aneurysm sac, was achieved in all cases. Time of procedure varied between 36 and 68 min (mean 51.36 min). Mean fluoroscopy time was 16.7 min. A posterior left access was used in 41 cases, posterior right access in 6 cases, and an anterior approach in 3. In 19 cases (38%), one or more feeding vessels were visualized and embolized. Sac embolization was done using Onyx plus micro-coils in 31 cases (62%) and Onyx alone in 19 cases (38%). Mean amount of Onyx was 6 ml. No complications, correlated with the direct percutaneous sac puncture, or to Onyx injection occurred. After 1-year follow-up, sac shrinkage occurred in 34 cases (68%), while in 16 patients (32%) sac size remained stable without evidence of sac perfusion. CONCLUSION Percutaneous direct sac embolization using Onyx in combination or not with microcoils represents a safe and valid technique to solve post-EVAR type II endoleaks.
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Thomas WR, Karkhanis S, Hopkins J, Duddy M. Translumbar Embolization of Type II Endoleaks: 12 Years of Experience at a Regional Vascular Centre. Vasc Endovascular Surg 2020; 54:389-394. [DOI: 10.1177/1538574420918972] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background and Aims: The management of persistent type II endoleaks (T2E) is often problematic for the endovascular specialist, with a lack of clear evidence for the best approach for embolization. The aim of this study was to evaluate the safety and efficacy of translumbar embolization (TLE) for T2E following endovascular aneurysm repair (EVAR). Methods: This retrospective review included 27 embolizations performed on 23 patients with a median age of 78 (range 67-94 years; male: female 15:9), during the period September 2006 to July 2018. Primary outcome was freedom from aneurysm sac growth defined as <2 mm sac diameter increase on subsequent computed tomography. Results: The initial technical success rate was 100%, with complete “on table” embolization of the T2E on fluoroscopy; however, 4 (15%) patients needed repeat TLE due to persistent endoleak identified on follow-up computed tomography or because of further sac expansion. Satisfactory stasis was achieved in these 4 cases following a second embolization. The mean volume of embolic injected was 7.4 mL per case. Feeding vessels were identified on angiography in all cases; the nidus was supplied by lumbar branches in 21 cases, by the inferior mesenteric artery in 1 case and by both in a further 5 cases. Freedom from aneurysm sac growth (defined as < 2 mm) following 1 or 2 separate TLE was achieved in 18 (78%) and 20 (86%) patients, respectively. The major complication rate was <5% with one case of psoas abscess presenting 7 months following embolization; there were 2 minor complications in the form of intraprocedural transient abdominal pain. Conclusion: The translumbar approach is a safe and effective technique to treat T2E, as evidenced by the low complication and reintervention rate.
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Affiliation(s)
- Wiliam Rhodri Thomas
- Department of Interventional Radiology, University Hospital, Cardiff, United Kingdom
| | - Salil Karkhanis
- Department of Interventional Radiology, Queen Elizabeth Hospital, Birmingham, United Kingdom
| | - Jonathan Hopkins
- Department of Interventional Radiology, Queen Elizabeth Hospital, Birmingham, United Kingdom
| | - Martin Duddy
- Department of Interventional Radiology, Queen Elizabeth Hospital, Birmingham, United Kingdom
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Ierardi AM, Pesapane F, Arrichiello A, Fontana F, Piacentino F, Carrafiello G. Migration of Ethylene Vinyl Alcohol Co-Polymer in the Urinary Tract Successfully Managed. ACTA ACUST UNITED AC 2019; 55:medicina55060234. [PMID: 31159307 PMCID: PMC6630371 DOI: 10.3390/medicina55060234] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Revised: 05/09/2019] [Accepted: 05/28/2019] [Indexed: 01/15/2023]
Abstract
Selective embolization is the treatment of choice for traumatic renal pseudoaneurysm. The use of ethylene vinyl alcohol copolymer (EVOH) was recently described as an embolic agent in peripheral lesions. The aim of a good embolic agent is to: achieve rapid and effective embolization; reach and fill distal vasculature targeted for embolization; be easy to prepare and use. Moreover, it should be highly radiopaque, controllable during administration, biocompatible and cost-effective. EVOH is a non-adhesive embolic agent and its efficacy is independent from the coagulant status. The risk of non-targeted embolization should be reduced by the good radio-opacity of the embolic material that is injected under continuous fluoroscopy. Nevertheless, symptomatic EVOH migration was described. We report a unique case of embolization of a renal pseudoaneurysm and migration of EVOH in the urinary tract. Retrograde trans-urethral removal of the migrated embolic agent was successfully performed. Our case report indicates that EVOH may not be appropriate when a fistula with renal calyx is suspected, even if its migration in the urinary tract may be managed.
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Affiliation(s)
- Anna Maria Ierardi
- Diagnostic and Interventional Radiology Department, University of Milan, Via di Rudinì 8, 20142 Milan, Italy.
| | - Filippo Pesapane
- Postgraduate School in Radiodiagnostics, Università degli Studi di Milano, Via Festa del Perdono 7, 20122 Milan, Italy.
| | - Antonio Arrichiello
- Diagnostic and Interventional Radiology Department, University of Milan, Via di Rudinì 8, 20142 Milan, Italy.
| | - Federico Fontana
- Radiology Department, Insubria University, Viale Borri 57, 21100 Varese, Italy.
| | - Filippo Piacentino
- Radiology Department, Insubria University, Viale Borri 57, 21100 Varese, Italy.
| | - Gianpaolo Carrafiello
- Radiology Department, Foundation IRCCS Cà Granda-Ospedale Maggiore Policlinico, Via Francesco Sforza 28, 20122 Milan, Italy.
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Jeganathan S, Budziszewski E, Hernandez C, Wu H, Gilbert D, Tavri S, Exner AA. Tunable Polymer Embolic Implant for Vascular Occlusion. ACS Biomater Sci Eng 2019; 5:1849-1856. [DOI: 10.1021/acsbiomaterials.8b01530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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19
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Ultee KHJ, Büttner S, Huurman R, Bastos Gonçalves F, Hoeks SE, Bramer WM, Schermerhorn ML, Verhagen HJM. Editor's Choice - Systematic Review and Meta-Analysis of the Outcome of Treatment for Type II Endoleak Following Endovascular Aneurysm Repair. Eur J Vasc Endovasc Surg 2018; 56:794-807. [PMID: 30104089 DOI: 10.1016/j.ejvs.2018.06.009] [Citation(s) in RCA: 103] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Accepted: 06/06/2018] [Indexed: 12/01/2022]
Abstract
OBJECTIVES The efficacy and need for secondary interventions for type II endoleaks following endovascular abdominal aortic aneurysm repair (EVAR) remain controversial. This systematic review aimed at investigating the clinical outcomes of different type II endoleak treatments in patients with a persistent type II endoleak after EVAR. DATA SOURCES Embase, Medline via Ovid, Web of Science Core Collection, the Cochrane CENTRAL, and Google Scholar. REVIEW METHODS This systematic review was performed in accordance with the PRISMA Statement. Outcomes of interest were technical and clinical success, change in sac diameter, complications, need for additional interventions, abdominal aortic aneurysm (AAA) rupture, and (AAA related) mortality. Meta-analyses were performed with random effects models. RESULTS A total of 59 studies were included, with a cumulative cohort of 1073 patients with persistent type II endoleak. Peri-operative complications following treatment of type II endoleaks occurred in 3.8% of patients (95% CI 2.7-5.2%), and AAA related mortality was 1.8% (95% CI 1.1-2.7%). Overall technical success was 87.9% (95% CI 83.1-92.1%), while clinical success was 68.4% (95% CI 61.2-75.1%). Among studies detailing sac dynamics, decrease or stable sac, with or without resolution, was achieved in 78.4% (95% CI 70.2-85.6%). Changes in sac diameter following type II endoleak treatment were documented in 157 patients to at least 24 months. Within this group an actual decrease in sac diameter was reported in only 27 of 40 patients. CONCLUSION There is little evidence supporting the efficacy of secondary intervention for type II endoleaks after EVAR. Although generally safe, the lack of evidence supporting the efficacy of type II endoleak treatment leads to difficulty in assessing its merits.
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Affiliation(s)
- Klaas H J Ultee
- Department of Vascular Surgery, Erasmus MC University Medical Centre, Rotterdam, The Netherlands
| | - Stefan Büttner
- Department of Vascular Surgery, Erasmus MC University Medical Centre, Rotterdam, The Netherlands
| | - Roy Huurman
- Department of Vascular Surgery, Erasmus MC University Medical Centre, Rotterdam, The Netherlands
| | - Frederico Bastos Gonçalves
- Department of Vascular Surgery, Erasmus MC University Medical Centre, Rotterdam, The Netherlands; Hospital de Santa Marta, CHLC & NOVA Medical School, Lisbon, Portugal
| | - Sanne E Hoeks
- Department of Anaesthetics, Erasmus University Medical Centre, The Netherlands
| | - Wichor M Bramer
- Medical Library, Erasmus MC, University Medical Centre, Rotterdam, The Netherlands
| | - Marc L Schermerhorn
- Department of Surgery, Division of Vascular and Endovascular Surgery, Beth Israel Deaconess Medical Centre and Harvard Medical School, Boston, MA, USA
| | - Hence J M Verhagen
- Department of Vascular Surgery, Erasmus MC University Medical Centre, Rotterdam, The Netherlands.
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Rahimi S, Nassiri N, Huntress L, Crystal D, Thomas J, Shafritz R. An Institution-Wide Algorithm for Treatment of Type II Endoleak Following Endovascular Aneurysm Repair (EVAR). Vasc Endovascular Surg 2018; 52:249-254. [DOI: 10.1177/1538574418761269] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Objectives: Multiple endovascular techniques have been described for the treatment of persistent type II endoleaks (pT2ELs) causing aneurysm sac growth following endovascular aneurysm repair (EVAR). In the event of a failed endovascular procedure and a pT2EL, a consensus regarding further treatment is lacking, and the literature suggests repeated endovascular attempts are rarely successful. Herein, we propose an algorithm for definitive management of pT2ELs with persistent sac growth following EVAR. Methods: A retrospective review of 29 patients who underwent treatment of persistent sac growth in the setting of pT2ELs was performed. Intervention methods were determined at the discretion of the operating surgeon. Aneurysmal sac enlargement was defined as a diameter increase > 5 mm, and persistent endoleak was defined as lasting greater than 6 months. Results: From 2000 to 2015, 917 EVAR procedures were performed at our institution. Isolated pT2ELs with sac enlargement were identified in 29 patients. Twenty-five patients underwent direct translumbar sac puncture and coiling and/or Onyx (Onyx, Plymouth, Minnesota) embolization of the culprit vessels. Thirteen (52%) of 25 patients had pT2EL after first endovascular intervention, and 10 (40%) of 25 patients failed 2 endovascular treatments. Of those 10, 7 displayed persistent aneurysmal sac growth and underwent a third embolization procedure. Type II endoleaks persisted in 6 patients; 3 patients were subsequently treated with laparotomy, ligation of lumbar vessels, sac exploration, and sac plication around the endograft. Technical success for this technique was 100%. During a mean follow-up of 38.4 months, no recurrent T2ELs, stent graft migration, and/or disjunction were observed. Conclusions: We propose a new algorithm for the management of pT2ELs. If 2 endovascular procedures fail to control of the endoleak, repeat endovascular attempts are not recommended. Endovascular failure should be followed by laparotomy with surgical ligation of culprit feeding vessels followed by sac exploration and plication of the sac, and endoaneurysmorrhaphy.
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Affiliation(s)
- Saum Rahimi
- Division of Vascular Surgery, Department of Surgery, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, USA
| | - Naiem Nassiri
- Division of Vascular Surgery, Department of Surgery, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, USA
| | - Lauren Huntress
- Rutgers-Robert Wood Johnson Medical School, New Brunswick, NJ, USA
| | - Dustin Crystal
- Rutgers-Robert Wood Johnson Medical School, New Brunswick, NJ, USA
| | - Jones Thomas
- Rutgers-Robert Wood Johnson Medical School, New Brunswick, NJ, USA
| | - Randy Shafritz
- Division of Vascular Surgery, Department of Surgery, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ, USA
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Marcelin C, Le Bras Y, Petitpierre F, Midy D, Grenier N, Ducasse E, Cornélis F. Embolization for persistent type IA endoleaks after chimney endovascular aneurysm repair with Onyx®. Diagn Interv Imaging 2017; 98:849-855. [DOI: 10.1016/j.diii.2017.04.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 04/19/2017] [Accepted: 04/22/2017] [Indexed: 11/30/2022]
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Marcelin C, Izaaryene J, Castelli M, Barral PA, Jacquier A, Vidal V, Bartoli JM. Embolization of ovarian vein for pelvic congestion syndrome with ethylene vinyl alcohol copolymer (Onyx ®). Diagn Interv Imaging 2017. [PMID: 28647478 DOI: 10.1016/j.diii.2017.05.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
PURPOSE To evaluate the safety and efficacy of pelvic embolization using ethylene vinyl alcohol copolymer (Onyx®) for pelvic congestion syndrome. MATERIAL AND METHODS Between March 2012 to September 2016, 17 women (mean age, 44.7± 12.2 (SD) years; range: 34-71years) presenting with pelvic congestion syndrome were evaluated for transvenous embolization with Onyx®. Pelvic congestion syndrome was initially diagnosed by clinical examination and the results of transvaginal Doppler ultrasound and further confirmed by pelvic venography. Primary and secondary clinical efficacy was defined respectively by the resolution of the symptoms after embolization and at the end of the follow-up, irrespective to the number of embolization procedures. RESULTS Technical efficacy of embolization was 100% with no significant complications during and after embolization. After a mean follow-up time of 24.2 months (range: 6-69months) a primary and secondary clinical efficacy of 76.4% (13/17 women) and 94.1% (16/17 women) respectively were observed. Four women (23.5%) underwent a second embolization procedure with one woman requiring a third embolization procedure. These additional embolization procedures were associated with direct puncture of vulvar varices for sclerotherapy in two women. Five women (29%) had recurrent symptoms 21 months post-treatment (7-42months). CONCLUSION Pelvic embolization using ethylene vinyl alcohol copolymer (Onyx®) has a favorable clinical success for pelvic congestion syndrome.
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Affiliation(s)
- C Marcelin
- Department of Medical Imaging, hôpital de la Timone, 264, rue Saint-Pierre, 13005 Marseille, France.
| | - J Izaaryene
- Department of Medical Imaging, hôpital de la Timone, 264, rue Saint-Pierre, 13005 Marseille, France
| | - M Castelli
- Department of Medical Imaging, hôpital de la Timone, 264, rue Saint-Pierre, 13005 Marseille, France
| | - P A Barral
- Department of Medical Imaging, hôpital de la Timone, 264, rue Saint-Pierre, 13005 Marseille, France
| | - A Jacquier
- Department of Medical Imaging, hôpital de la Timone, 264, rue Saint-Pierre, 13005 Marseille, France
| | - V Vidal
- Department of Medical Imaging, hôpital de la Timone, 264, rue Saint-Pierre, 13005 Marseille, France
| | - J M Bartoli
- Department of Medical Imaging, hôpital de la Timone, 264, rue Saint-Pierre, 13005 Marseille, France
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Marcelin C, Le Bras Y, Petitpierre F, Midy D, Ducasse E, Grenier N, Cornelis F. Safety and efficacy of embolization using Onyx ® of persistent type II endoleaks after abdominal endovascular aneurysm repair. Diagn Interv Imaging 2017; 98:491-497. [PMID: 28196614 DOI: 10.1016/j.diii.2017.01.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Revised: 01/03/2017] [Accepted: 01/09/2017] [Indexed: 11/19/2022]
Abstract
PURPOSE To retrospectively evaluate the safety and efficacy of embolization of persistent type II endoleaks occurring after abdominal endovascular aneurysm repair (EVAR) using ethylene vinyl alcohol copolymer (Onyx®). MATERIAL AND METHODS Between 2008 and 2016, 28 consecutives patients (25 men, 3 women) with a mean age of 75.3years±9 (SD) (range: 59-90years) were treated for 29 persistent type II endoleaks with increasing aneurysm size>5mm occurring after EVAR. A total of 35 embolization procedures were performed using Onyx®, via a transarterial route (n=25) or direct puncture (n=10), with or without additional metallic coils. The endpoints were to evaluate the clinical efficacy, corresponding to the stabilization or decrease of aneurism size, and the technical efficacy, corresponding to the ability to complete the embolization. RESULTS No severe complications were observed during and after embolization. The primary and secondary clinical efficacies were 75% (21/28) and 96.4% (27/28), respectively. Overall primary technical efficacy rate was 58.6% (17/29), greater for transarterial technique (72.8%) than for direct puncture (14.3%) (P=0.01). Secondary technical efficacy was 72.4% (21/29), with no differences between transarterial (81.8%) and direct puncture (42.8%) (P=0.06). CONCLUSION Embolization with Onyx® of type II endoleaks after EVAR appears a safe and effective procedure.
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Affiliation(s)
- C Marcelin
- Department of radiology, hôpital Pellegrin, place Amélie-Raba-Léon, 33076 Bordeaux, France.
| | - Y Le Bras
- Department of radiology, hôpital Pellegrin, place Amélie-Raba-Léon, 33076 Bordeaux, France
| | - F Petitpierre
- Department of radiology, hôpital Pellegrin, place Amélie-Raba-Léon, 33076 Bordeaux, France
| | - D Midy
- Department of vascular surgery, groupe hospitalier Pellegrin, CHU de Bordeaux, place Amélie-Raba-Léon, 33076 Bordeaux, France
| | - E Ducasse
- Department of vascular surgery, groupe hospitalier Pellegrin, CHU de Bordeaux, place Amélie-Raba-Léon, 33076 Bordeaux, France
| | - N Grenier
- Department of radiology, hôpital Pellegrin, place Amélie-Raba-Léon, 33076 Bordeaux, France
| | - F Cornelis
- Department of radiology, hôpital Pellegrin, place Amélie-Raba-Léon, 33076 Bordeaux, France
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Comparison of Type II Endoleak Embolizations: Embolization of Endoleak Nidus Only versus Embolization of Endoleak Nidus and Branch Vessels. J Vasc Interv Radiol 2017; 28:176-184. [DOI: 10.1016/j.jvir.2016.10.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 10/02/2016] [Accepted: 10/03/2016] [Indexed: 11/22/2022] Open
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25
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Chitosan–Sodium Tetradecyl Sulfate Hydrogel: Characterization and Preclinical Evaluation of a Novel Sclerosing Embolizing Agent for the Treatment of Endoleaks. Cardiovasc Intervent Radiol 2017; 40:576-584. [DOI: 10.1007/s00270-016-1557-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Accepted: 12/22/2016] [Indexed: 11/26/2022]
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26
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Evidence for Ethylene-Vinyl-Alcohol-Copolymer Liquid Embolic Agent as a Monotherapy in Treatment of Endoleaks. Eur J Vasc Endovasc Surg 2016; 51:810-4. [DOI: 10.1016/j.ejvs.2016.02.015] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Accepted: 02/17/2016] [Indexed: 12/19/2022]
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Brown A, Saggu GK, Bown MJ, Sayers RD, Sidloff DA. Type II endoleaks: challenges and solutions. Vasc Health Risk Manag 2016; 12:53-63. [PMID: 27042087 PMCID: PMC4780400 DOI: 10.2147/vhrm.s81275] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Type II endoleaks are the most common endovascular complications of endovascular abdominal aortic aneurysm repair (EVAR); however, there has been a divided opinion regarding their significance in EVAR. Some advocate a conservative approach unless there is clear evidence of sac expansion, while others maintain early intervention is best to prevent adverse late outcomes such as rupture. There is a lack of level-one evidence in this challenging group of patients, and due to a low event rate of complications, large numbers of patients would be required in well-designed trials to fully understand the natural history of type II endoleak. This review will discuss the imaging, management, and outcome of patients with isolated type II endoleaks following infra-renal EVAR.
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Affiliation(s)
- Andrew Brown
- Department of Vascular Surgery, Queens Medical Centre, University of Nottingham, Nottingham, UK
| | - Greta K Saggu
- Department of Vascular Surgery, Queens Medical Centre, University of Nottingham, Nottingham, UK
| | - Matthew J Bown
- Department of Cardiovascular Sciences, National Institute for Health Research Leicester Cardiovascular Biomedical Research Unit, University of Leicester, Leicester, UK
| | - Robert D Sayers
- Department of Cardiovascular Sciences, National Institute for Health Research Leicester Cardiovascular Biomedical Research Unit, University of Leicester, Leicester, UK
| | - David A Sidloff
- Department of Vascular Surgery, Queens Medical Centre, University of Nottingham, Nottingham, UK; Department of Cardiovascular Sciences, National Institute for Health Research Leicester Cardiovascular Biomedical Research Unit, University of Leicester, Leicester, UK
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Wildgruber M, Müller-Wille R, Busch V, Wohlgemuth WA, Heiss P. Severe Adverse Reaction During DMSO Injection for Onyx Embolization of a Thoracic Type II Endoleak. Cardiovasc Intervent Radiol 2015. [PMID: 26202392 DOI: 10.1007/s00270-015-1187-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Moritz Wildgruber
- Department of Radiology, Universitätsklinikum Regensburg, Franz-Josef-Strauss Allee 11, 93053, Regensburg, Germany.
| | - René Müller-Wille
- Department of Radiology, Universitätsklinikum Regensburg, Franz-Josef-Strauss Allee 11, 93053, Regensburg, Germany.
| | - Volker Busch
- Bezirksklinikum Regensburg, Universitätsstrasse 84, 93053, Regensburg, Germany.
| | - Walter A Wohlgemuth
- Department of Radiology, Universitätsklinikum Regensburg, Franz-Josef-Strauss Allee 11, 93053, Regensburg, Germany.
| | - Peter Heiss
- Department of Radiology, Universitätsklinikum Regensburg, Franz-Josef-Strauss Allee 11, 93053, Regensburg, Germany.
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29
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Choong AM, Mitchell K, Jenkins J. A Right Intercosto-Bronchial Artery Derived from the Thyrocervical Trunk: An Unusual Cause of Type II Endoleak Post Thoracic Aortic Stenting. THE KOREAN JOURNAL OF THORACIC AND CARDIOVASCULAR SURGERY 2015; 48:139-41. [PMID: 25883899 PMCID: PMC4398162 DOI: 10.5090/kjtcs.2015.48.2.139] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 09/18/2014] [Accepted: 09/23/2014] [Indexed: 11/16/2022]
Abstract
The aetiology, incidence and management of type II endoleaks in standard infrarenal endovascular aortic aneurysm repair is well described. Far less data is available for thoracic stent grafting. We present a rare and interesting case of a type II endoleak post thoracic aortic stenting and highlight the aberrant anatomy that can cause this phenomenon in such cases.
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Affiliation(s)
- Andrew Mtl Choong
- Department of Vascular Surgery, Royal Brisbane and Women's Hospital ; Department of Surgery, University of Queensland, Brisbane ; Department of Surgery, Griffith University
| | - Ken Mitchell
- Department of Interventional Radiology, Royal Brisbane and Women's Hospital
| | - Jason Jenkins
- Department of Vascular Surgery, Royal Brisbane and Women's Hospital
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Torres-Blanco Á, Schmidt A, Gómez-Palonés F, Ortiz-Monzón E. The Roadside Technique for Type II Endoleak Embolization 4 Years after Endovascular Aortic Aneurysm Repair. Ann Vasc Surg 2015; 29:837.e13-6. [PMID: 25681172 DOI: 10.1016/j.avsg.2014.11.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2014] [Revised: 10/26/2014] [Accepted: 11/04/2014] [Indexed: 10/24/2022]
Abstract
Endoleaks are the most common cause of reintervention after endovascular aortic aneurysm repair (EVAR). Type II endoleaks have been implicated as a risk factor for expansion and rupture. Several techniques have been described to manage type II endoleaks, being transarterial catheterization the most commonly used. In some cases this technique can be difficult or impossible to achieve. We report the use of a technique that offers a direct access to the aneurysm sac and the possibility of catheterization of the involved vessels or the embolization of the communication between them, even 4 years after EVAR.
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Affiliation(s)
- Álvaro Torres-Blanco
- Department of Angiology, Endovascular and Vascular Surgery, Hospital Universitario Dr. Peset, Valencia, Spain.
| | - Andrej Schmidt
- Center for Vascular Medicine, Angiology and Vascular Surgery, Park Hospital, Leipzig, Germany
| | - Francisco Gómez-Palonés
- Department of Angiology, Endovascular and Vascular Surgery, Hospital Universitario Dr. Peset, Valencia, Spain
| | - Eduardo Ortiz-Monzón
- Department of Angiology, Endovascular and Vascular Surgery, Hospital Universitario Dr. Peset, Valencia, Spain
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Zander T, Medina S, Montes G, Nuñez-Atahualpa L, Valdes M, Maynar M. Endoluminal occlusion devices: technology update. MEDICAL DEVICES-EVIDENCE AND RESEARCH 2014; 7:425-36. [PMID: 25489252 PMCID: PMC4257107 DOI: 10.2147/mder.s49540] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Endoluminal occlusion has been performed since the early beginning of interventional radiology. Over recent decades, major technological advances have improved the techniques used and different devices have been developed for changing conditions. Most of these occlusion devices have been implemented in the vascular territory. Early embolization materials included glass particles, hot contrast, paraffin, fibrin, and tissue fragments such as muscle fibers and blood clots; today, occlusion materials include metallic devices, particles, and liquid materials, which can be indicated for proximal or distal occlusion, high-flow and low-flow situations, and in large-caliber and small-caliber vessels, based on need. Technological progress has led to a decreased size of delivery catheters, and an increase in safety due to release systems that permit the withdrawing and replacement of embolization material. Furthermore, bioactive embolization materials have been developed to increase the efficacy of embolization or the biological effect of medication. Finally, materials have been modified for changing indications. Intravascular stents were initially developed to keep an artery open; however, by adding a covering membrane, these stents can be used to occlude the wall of a vessel or other endoluminal structures. This article gives an overview of the devices most utilized for occlusion of endoluminal structures, as well as their major purpose in the endovascular territory.
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Affiliation(s)
- Tobias Zander
- Endoluminal/Vascular Department, Hospiten Hospital Group, Santa Cruz de Tenerife, Spain
| | - Samantha Medina
- Endoluminal/Vascular Department, Hospiten Hospital Group, Santa Cruz de Tenerife, Spain
| | - Guillermo Montes
- Endoluminal/Vascular Department, Hospiten Hospital Group, Santa Cruz de Tenerife, Spain
| | | | - Michel Valdes
- Endoluminal/Vascular Department, Hospiten Hospital Group, Santa Cruz de Tenerife, Spain
| | - Manuel Maynar
- Endoluminal/Vascular Department, Hospiten Hospital Group, Santa Cruz de Tenerife, Spain ; University of Las Palmas de Gran Canarias, Las Palmas, Canary Island, Spain
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Essentials of endovascular abdominal aortic aneurysm repair imaging: postprocedure surveillance and complications. AJR Am J Roentgenol 2014; 203:W358-72. [PMID: 25247965 DOI: 10.2214/ajr.13.11736] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVE Lifelong postprocedural imaging surveillance is necessary after endovascular abdominal aortic aneurysm repair (EVAR) to assess for complications of endograft placement, as well as device failure and continued aneurysm growth. Refinement of the surveillance CT technique and development of ultrasound and MRI protocols are important to limit radiation exposure. CONCLUSION A comprehensive understanding of EVAR surveillance is necessary to identify life-threatening complications and to aid in secondary treatment planning.
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Müller-Wille R, Schötz S, Zeman F, Uller W, Güntner O, Pfister K, Kasprzak P, Stroszczynski C, Wohlgemuth WA. CT features of early type II endoleaks after endovascular repair of abdominal aortic aneurysms help predict aneurysm sac enlargement. Radiology 2014; 274:906-16. [PMID: 25380455 DOI: 10.1148/radiol.14140284] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
PURPOSE To determine computed tomographic (CT) features of early type II endoleaks associated with aneurysm sac enlargement after endovascular aortic aneurysm repair (EVAR) of abdominal aortic aneurysm. MATERIALS AND METHODS Institutional review board approval was not required for this retrospective study. The authors reviewed imaging and clinical data from 56 patients (seven women, 49 men; mean age ± standard deviation, 71 years ± 7.9; age range, 52-85 years) with early type II endoleak who had undergone EVAR between December 2002 and December 2011 and who had been followed up with imaging and clinical evaluation for at least 6 months. The number and diameter of all feeding and/or draining arteries were measured, and endoleaks were classified according to their sources into simple inferior mesenteric artery (IMA), simple lumbar artery (LA), complex LA, and complex IMA-LA type II endoleaks. Volume and attenuation of the nidus were measured. Aneurysm enlargement was defined as an increase in the aneurysm volume of more than 5% during follow-up. Simple and multivariate logistic regression analyses were performed to identify independent clinical and imaging variables associated with aneurysm enlargement. RESULTS Twenty-three of the 56 patients (41%) showed aneurysm sac enlargement during follow-up (mean follow-up, 3.0 years ± 2.0). With the multivariate model, the variables that showed the strongest indicators for aneurysm sac enlargement were complex IMA-LA type II endoleak (odds ratio [OR] = 10.29, P = .004) and the diameter of the largest feeding and/or draining artery (OR = 4.55, P = .013). Patients without complex IMA-LA type II endoleak in whom the largest feeding and/or draining artery was larger than 3.8 mm and patients with a complex IMA-LA type II endoleak in whom the largest feeding and/or draining artery was larger than 2.2 mm were at high risk for aneurysm sac enlargement. CONCLUSION The strongest indicators for aneurysm sac enlargement are complex IMA-LA type II endoleak and the diameter of the largest feeding and/or draining artery.
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Affiliation(s)
- René Müller-Wille
- From the Department of Radiology (R.M.W., S.S., W.U., O.G., C.S., W.A.W.), Center for Clinical Studies (F.Z.), and Department of Surgery (K.P., P.K.), University Medical Center Regensburg, Franz-Josef-Strauss-Allee 11, 93053 Regensburg, Germany
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Chung R, Morgan RA. Type 2 Endoleaks Post-EVAR: Current Evidence for Rupture Risk, Intervention and Outcomes of Treatment. Cardiovasc Intervent Radiol 2014; 38:507-22. [PMID: 25189665 DOI: 10.1007/s00270-014-0987-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Accepted: 07/26/2014] [Indexed: 10/24/2022]
Abstract
Type 2 endoleaks (EL2) are the most commonly encountered endoleaks following EVAR. Despite two decades of experience, there remains considerable variation in the management of EL2 with controversies ranging from if to treat, when to treat and how to treat. Here, we summarise the available evidence, describe the treatment techniques available and offer guidelines for management.
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Affiliation(s)
- Raymond Chung
- Radiology, Ground Floor, St. James Wing, St. George's Healthcare NHS Trust, Blackshaw Road, Tooting, London, SW17 0QT, England, UK,
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Dudeck O, Schnapauff D, Herzog L, Löwenthal D, Bulla K, Bulla B, Halloul Z, Meyer F, Pech M, Gebauer B, Ricke J. Can early computed tomography angiography after endovascular aortic aneurysm repair predict the need for reintervention in patients with type II endoleak? Cardiovasc Intervent Radiol 2014; 38:45-52. [PMID: 24809755 DOI: 10.1007/s00270-014-0901-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/04/2013] [Accepted: 03/21/2014] [Indexed: 11/29/2022]
Abstract
PURPOSE This study was designed to identify parameters on CT angiography (CTA) of type II endoleaks following endovascular aortic aneurysm repair (EVAR) for abdominal aortic aneurysm (AAA), which can be used to predict the subsequent need for reinterventions. METHODS We retrospectively identified 62 patients with type II endoleak who underwent early CTA in mean 3.7 ± 1.9 days after EVAR. On the basis of follow-up examinations (mean follow-up period 911 days; range, 373-1,987 days), patients were stratified into two groups: those who did (n = 18) and those who did not (n = 44) require reintervention. CTA characteristics, such as AAA, endoleak, as well as nidus dimensions, patency of the inferior mesenteric artery, number of aortic branch vessels, and the pattern of endoleak appearance, were recorded and correlated with the clinical outcome. RESULTS Univariate and receiver operating characteristic curve regression analyses revealed significant differences between the two groups for the endoleak volume (surveillance group: 1391.6 ± 1427.9 mm(3); reintervention group: 3227.7 ± 2693.8 mm(3); cutoff value of 2,386 mm(3); p = 0.002), the endoleak diameter (13.6 ± 4.3 mm compared with 25.9 ± 9.6 mm; cutoff value of 19 mm; p < 0.0001), the number of aortic branch vessels (2.9 ± 1.2 compared with 4.2 ± 1.4 vessels; p = 0.001), as well as a "complex type" endoleak pattern (13.6 %, n = 6 compared with 44.4 %, n = 8; p = 0.02). CONCLUSIONS Early CTA can predict the future need for reintervention in patients with type II endoleak. Therefore, treatment decision should be based not only on aneurysm enlargement alone but also on other imaging characteristics.
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Affiliation(s)
- O Dudeck
- Department of Radiology and Nuclear Medicine, University of Magdeburg, Leipziger Strasse 44, 39120, Magdeburg, Germany,
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Hongo N, Kiyosue H, Shuto R, Kamei N, Miyamoto S, Tanoue S, Mori H. Double Coaxial Microcatheter Technique for Transarterial Aneurysm Sac Embolization of Type II Endoleaks after Endovascular Abdominal Aortic Repair. J Vasc Interv Radiol 2014; 25:709-16. [DOI: 10.1016/j.jvir.2014.01.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2013] [Revised: 01/03/2014] [Accepted: 01/11/2014] [Indexed: 10/25/2022] Open
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Toya N, Kanaoka Y, Ohki T. Secondary interventions following endovascular repair of abdominal aortic aneurysm. Gen Thorac Cardiovasc Surg 2013; 62:87-94. [DOI: 10.1007/s11748-013-0333-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Indexed: 12/11/2022]
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