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Lin JX, Taylor S, Hidajat C, Hill A. Difficult diagnosis and management of a complicated Nellix graft infection. JOURNAL OF VASCULAR SURGERY CASES INNOVATIONS AND TECHNIQUES 2021; 7:417-420. [PMID: 34278074 PMCID: PMC8261550 DOI: 10.1016/j.jvscit.2021.04.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Accepted: 04/26/2021] [Indexed: 11/16/2022]
Abstract
An 81-year-old man, with a complex vascular surgical history, presents with sepsis from an infected Nellix stent-graft. He required an urgent laparotomy, explantation of the graft, and extra-anatomical repair. Although now widely used for this indication, the preoperative 18F-fluorodeoxyglucose positron emission tomography/computed tomography was nondiagnostic for his stent-graft infection. We describe our management of a complicated Nellix graft infection and discuss the utility of positron emission tomography/computed tomography for stent-graft infections.
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Affiliation(s)
- Jin Xin Lin
- Department of Vascular Surgery, Auckland City Hospital, Auckland, New Zealand
| | - Sam Taylor
- Department of Vascular Surgery, Auckland City Hospital, Auckland, New Zealand
| | - Cassandra Hidajat
- Department of Vascular Surgery, Auckland City Hospital, Auckland, New Zealand
| | - Andrew Hill
- Department of Vascular Surgery, Auckland City Hospital, Auckland, New Zealand
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Biddau C, Nagliati C, Graziano M, Cereser L, Terrosu G, Balani A. Duodenal Obstruction in a Patient Previously Treated With EndoVascular Aneurysm Sealing System Repair. Vasc Endovascular Surg 2021; 55:859-863. [PMID: 33902354 DOI: 10.1177/15385744211012566] [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: 11/16/2022]
Abstract
The Nellix® endovascular aneurysm sealing system (EVAS) is a relatively novel approach for the treatment of abdominal aortic aneurysms (AAAs). We present herein a case of duodenal obstruction (DO) which occurred following an EVAS treatment for the repair of an AAA. A 77-year old man was admitted to our hospital with acute abdominal pain and recurrent vomiting. Computed tomography (CT) revealed a retroperitoneal 66 × 59 × 90 mm (antero-posterior, AP; latero-lateral, LL; cranio-caudal: CC) solid mass located in the epigastrium, corresponding to the infrarenal abdominal aortic aneurysm sac, previously treated by EVAS. An exploratory laparotomy was performed, which revealed a retroperitoneal mass compressing the third and fourth parts of the duodenum. A gastroenteroanastomosis was performed in order to bypass the duodenal obstruction. An extensive search of biomedical literature databases was conducted to identify similar cases. To our knowledge, this is the first reported case of DO following an AAA repair with EVAS.
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Affiliation(s)
- Carlo Biddau
- Department of Medicine, 9316University of Udine, University Hospital "S. Maria della Misericordia," Udine, Italy
| | - Carlo Nagliati
- Department of Surgery, San Giovanni di Dio Hospital, Gorizia, Italy
| | - Michele Graziano
- Department of Medicine, 9316University of Udine, University Hospital "S. Maria della Misericordia," Udine, Italy
| | - Lorenzo Cereser
- Institute of Radiology, Department of Medicine, University of Udine, University Hospital "S. Maria della Misericordia," Udine, Italy
| | - Giovanni Terrosu
- Department of Medicine, 9316University of Udine, University Hospital "S. Maria della Misericordia," Udine, Italy
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de Donato G, Pasqui E, Panzano C, Brancaccio B, Grottola G, Galzerano G, Benevento D, Palasciano G. The Polymer-Based Technology in the Endovascular Treatment of Abdominal Aortic Aneurysms. Polymers (Basel) 2021; 13:1196. [PMID: 33917214 PMCID: PMC8068055 DOI: 10.3390/polym13081196] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 04/02/2021] [Accepted: 04/04/2021] [Indexed: 12/18/2022] Open
Abstract
An abdominal aortic aneurysm (AAA) is a dilatation of the abdominal aorta that progressively grows until it ruptures. Treatment is typically recommended when the diameter is more than 5 cm. The EVAR (Endovascular aneurysm repair) is a minimally invasive procedure that involves the placement of an expandable stent graft within the aorta to treat aortic disease without operating directly on the aorta. For years, stent grafts' essential design was based on metallic stent frames to support the fabric. More recently, a polymer-based technology has been proposed as an alternative method to seal AAA. This review underlines the two platforms that are based on a polymer technology: (1) the polymer-filled endobags, also known as Endovascular Aneurysm Sealing (EVAS) with Nellix stent graft; and (2) the O-ring EVAR polymer-based proximal neck sealing device, also known as an Ovation stent graft. Polymer characteristics for this particular aim, clinical applications, and durability results are hereby summarized and commented critically. The technique of inflating endobags filled with polymer to exclude the aneurysmal sac was not successful due to the lack of an adequate proximal fixation. The platform that used polymer to create a circumferential sealing of the aneurysmal neck has proven safe and effective.
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Affiliation(s)
- Gianmarco de Donato
- Department of Vascular Surgery, University of Siena, 53100 Siena, Italy; (E.P.); (C.P.); (B.B.); (G.G.); (G.G.); (D.B.); (G.P.)
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Singh AA, Benaragama KS, Pope T, Coughlin PA, Winterbottom AP, Harrison SC, Boyle JR. Progressive Device Failure at Long Term Follow Up of the Nellix EndoVascular Aneurysm Sealing (EVAS) System. Eur J Vasc Endovasc Surg 2020; 61:211-218. [PMID: 33303312 DOI: 10.1016/j.ejvs.2020.11.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 10/20/2020] [Accepted: 11/04/2020] [Indexed: 12/20/2022]
Abstract
OBJECTIVE High rates of midterm failure of the Nellix EndoVascular Aneurysm Sealing (EVAS) System resulted in device withdrawal from the UK market. The study aim was to report long term Nellix EVAS outcomes and management of a failing device. METHODS A retrospective review of EVAS procedures at a tertiary unit was performed. Device failure was defined as a triad of stent migration, stent separation, and secondary sac expansion, or any intervention for type 1 endoleak, device rupture, or explant. RESULTS 161 (male n = 140, female n = 21) patients with a median follow up of 6.0 (IQR 5.0-6.6) years were included. Freedom from all cause mortality estimate at six years was 41.5%. There were 70 (43.5%) device failures with a freedom from device failure estimate at six years of 32.3%. Failure was the result of sac expansion (n = 41), caudal stent migration (n = 36), stent separation (n = 26), and secondary AAA rupture (n = 15). A substantial number of type 1 endoleaks was present (1a n = 33, 1b n = 11), but the type 2 endoleak rate was low at 3.7%. Some 36 (22.4%) patients required re-intervention. Twenty-one patients underwent explant with no 30 day deaths. Six patients underwent Nellix-in-Nellix application (NINA) with one early death from bowel ischaemia and one patient who died later from non-aneurysm related cause. Two NINA patients have ongoing sac expansion and two have had thrombosis of a Nellix limb or visceral stent. Proximal embolisation was only successful in one of six cases. CONCLUSION The long term failure rate of Nellix EVAS is high. All patients with a device must be informed and be enrolled in enhanced surveillance. EVAS explant is an acceptable technique with favourable outcomes. Management by open explant, if the patient is fit, should be considered early and offered to those with device failure.
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Affiliation(s)
- Aminder A Singh
- Cambridge Vascular Unit, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Kapila S Benaragama
- Cambridge Vascular Unit, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Tasneem Pope
- Cambridge University School of Medicine, Cambridge, UK
| | - Patrick A Coughlin
- Cambridge Vascular Unit, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Andrew P Winterbottom
- Cambridge Interventional Radiology Unit, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Seamus C Harrison
- Cambridge Vascular Unit, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Jonathan R Boyle
- Cambridge Vascular Unit, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK.
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Quaglino S, Mortola L, Ferrero E, Ferri M, Cirillo S, Lario CV, Negro G, Ricotti A, Gaggiano A. Long-term failure after endovascular aneurysm sealing in a real-life, single-center experience with the Nellix endograft. J Vasc Surg 2020; 73:1958-1965.e1. [PMID: 33278539 DOI: 10.1016/j.jvs.2020.11.029] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2020] [Accepted: 11/05/2020] [Indexed: 10/22/2022]
Abstract
BACKGROUND Endovascular aneurysm sealing (EVAS) is an innovative alternative to conventional endovascular aneurysm repair (EVAR). EVAS relies on sac anchoring without proximal fixation to achieve sealing and should have allowed for the treatment of a broader range of anatomic features compared with standard EVAR. Despite the encouraging early reports, the mid- and long-term follow-up data have shown increased rates of failure. To address the issue, the manufacturer introduced revised instructions for use (IFU) in 2016. The present study reports the outcomes of this system after a median follow-up of 45 months. METHODS Data for all patients electively treated with EVAS at our institution were retrospectively collected. The patients were retrospectively reclassified according to the 2016 revised IFU of the device. All patients in the present series had undergone EVAS for the treatment of infrarenal abdominal aortic aneurysms (AAAs). The primary end point was therapeutic failure: graft migration >5 mm, sac expansion >5 mm, type IA endoleak (Is2 and Is3 using the Van den Ham classification), type Ib endoleak, and secondary rupture. The overall mortality, aortic-related mortality, and reintervention rates were also analyzed. RESULTS A total of 101 patients had undergone elective treatment by EVAS from 2013 to 2018 for infrarenal AAAs. The median follow-up was 3.75 years. Therapeutic failure was observed in 31 of the 101 patients (30.7%), with no significant difference between the in-IFU and off-IFU 2016 subgroups. Failure occurred at a median interval of 34 months from the index procedure. Of the 101 patients, 6.9% had presented with secondary rupture. Freedom from aneurysm-related mortality was 96.9% at 1 and 2 years and 89.9% at 5 years. Freedom from reintervention decreased over time: 94.7% at 1 year, 77% at 4 years, and 52.1% at 6 years. Of the 101 patients, 14 (13.9%) had undergone emergent or elective graft explantation. CONCLUSIONS EVAS performed worse than conventional endografts for several critical end points, regardless of any preoperative anatomic parameters. The incidence of therapeutic failures tended to increase over time, especially 4 years after the index procedure.
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Affiliation(s)
- Simone Quaglino
- Vascular and Endovascular Surgery Unit, Umberto I Mauriziano Hospital, Turin, Italy.
| | - Lorenzo Mortola
- Vascular and Endovascular Surgery Unit, University Hospital of Novara, Novara, Italy
| | - Emanuele Ferrero
- Vascular and Endovascular Surgery Unit, Umberto I Mauriziano Hospital, Turin, Italy
| | - Michelangelo Ferri
- Vascular and Endovascular Surgery Unit, Umberto I Mauriziano Hospital, Turin, Italy
| | | | | | | | - Andrea Ricotti
- Department of Public Health Sciences, School of Health Statistics and Biometry, University of Turin, Turin, Italy
| | - Andrea Gaggiano
- Vascular and Endovascular Surgery Unit, Umberto I Mauriziano Hospital, Turin, Italy
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Dzieciuchowicz Ł, Tomczak J, Strauss E, Oszkinis G. Mid-Term Results of Endovascular Aneurysm Sealing in the Treatment of Abdominal Aortic Aneurysm With Unfavorable Morphology. Vasc Endovascular Surg 2020; 55:39-49. [PMID: 33034263 DOI: 10.1177/1538574420965736] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE To report mid-term results of endovascular aneurysm sealing (EVAS) of abdominal aortic aneurysms (AAA) deemed unsuitable for a standard endovascular aneurysm repair (EVAR). METHODS A prospectively maintained database of 42 patients with EVAR-unfavorable anatomy treated by EVAS combined with chimney grafts in case of the proximal AAA neck shorter than 5 mm was analyzed. Early outcomes included final angiographic result, intra- and early post-operative deaths, and complications. Mid-term outcomes included all-cause mortality (ACM), aneurysm-related mortality (ARM), patency of the stents, occurrence of endoleaks, serious complications and graft failures defined as the AAA growth of more than 5 mm, type I endoleak, occlusion of the stent-graft or chimney graft, aorto-duodenal fistula, or aneurysm rupture. RESULTS The procedure was completed in all patients. Twenty-eight chimney grafts were implanted in 19 patients. Patients were followed for a median of 24 months (range 12-34 months). There were 2 intraoperative ruptures and 1 patient died in an early postoperative period. The cumulative ACM was 15, 21, and 36% at 12, 24, and 36 months, respectively, and the cumulative ARM was 8, 11, and 27% at 12, 24, and 36 months, respectively. Three out of 5 aneurysm-related deaths were due to a secondary aorto-duodenal fistula. The cumulative incidence of graft failure was 20, 27, and 42% at 12, 24, and 36 months, respectively. The cumulative incidence of an endoleak was 5, 9, and 23% at 12, 24, and 36 months, respectively. The graft failure increased significantly both ACM (p = .012) and ARM (p = .00003). The implantation of chimney grafts at the initial procedure increased ARM significantly (p = .008). The presence of an endoleak did not have any significant influence on ACM and ARM. CONCLUSION Patients treated with EVAS for AAAs with EVAR-unfavorable anatomy, especially those with chimney grafts, exhibit a high risk of graft failure and subsequent death.
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Affiliation(s)
- Łukasz Dzieciuchowicz
- Department of Vascular Surgery and Vascular Diseases, Institute of Medical Sciences, 49792University of Zielona Góra, Zielona Góra, Poland
| | - Jolanta Tomczak
- Department of Vascular and Endovascular Surgery, Angiology and Phlebology, 37807Poznan University of Medical Sciences, Poznań, Poland
| | - Ewa Strauss
- Department of Vascular and Endovascular Surgery, Angiology and Phlebology, 37807Poznan University of Medical Sciences, Poznań, Poland.,Institute of Human Genetics, Polish Academy of Sciences, Poznań, Poland
| | - Grzegorz Oszkinis
- Department of General and Vascular Surgery, University of Opole, Opole, Poland
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Vento V, Lejay A, Kuntz S, Ancetti S, Heim F, Chakfé N, Gargiulo M. Current status on aortic endografts. THE JOURNAL OF CARDIOVASCULAR SURGERY 2020; 61:544-554. [PMID: 32964901 DOI: 10.23736/s0021-9509.20.11614-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Endovascular treatment has become widespread to treat aneurysmal disease, especially located in the aorta. The modern era of abdominal aortic aneurysm repair started between 1986 and 1991, and in the last 30 years, Endovascular Treatment for abdominal aortic aneurysms evolved both due to the development of new materials and devices and the increasing appeal and effectiveness of the endovascular therapy itself. Vascular surgeons are using nowadays different solutions of Endovascular Treatment to treat all the expressions of aortic pathology (aneurysms, dissections and trauma) both in the acute and elective setting. Despite its use in every location of the aorta (the ascending aorta, the aortic arch, the thoracic aorta, thoraco-abdominal aorta, pararenal, iuxtarenal and infrarenal aortic aneurysms and iliac aneurysms), its safety and efficiency, endovascular treatment for aortic aneurysms presents some drawbacks: despite a lower short-term morbi-mortality, reinterventions and long-term patency are higher compared to open repair. In this review, we detail the most used types of endografts according to location, their performances and durability for each device. We conclude by discussing options to overcome ET limitations. Therefore, an obvious question arises: what we need in the future? What can the technological progress gives to physicians to further improve this new way of treating aorta?
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Affiliation(s)
- Vincenzo Vento
- Unit of Vascular Surgery, Department of Experimental Diagnostic and Specialty Medicine (DIMES), S. Orsola-Malpighi Polyclinic, University of Bologna, Bologna, Italy.,Department of Vascular Surgery and Kidney Transplantation, University Hospital of Strasbourg, Strasbourg, France
| | - Anne Lejay
- Department of Vascular Surgery and Kidney Transplantation, University Hospital of Strasbourg, Strasbourg, France
| | - Salomé Kuntz
- Department of Vascular Surgery and Kidney Transplantation, University Hospital of Strasbourg, Strasbourg, France
| | - Stefano Ancetti
- Unit of Vascular Surgery, Department of Experimental Diagnostic and Specialty Medicine (DIMES), S. Orsola-Malpighi Polyclinic, University of Bologna, Bologna, Italy
| | - Frédéric Heim
- Laboratory of Physics and Textile Mechanics, University of Upper Alsace, Mulhouse, France
| | - Nabil Chakfé
- Department of Vascular Surgery and Kidney Transplantation, University Hospital of Strasbourg, Strasbourg, France
| | - Mauro Gargiulo
- Unit of Vascular Surgery, Department of Experimental Diagnostic and Specialty Medicine (DIMES), S. Orsola-Malpighi Polyclinic, University of Bologna, Bologna, Italy -
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Sonetto A, Laukontaus S, Vikatmaa L, Aho P, Venermo M. Three-Year Results of the Nellix Endovascular Aneurysm Sealing System for Treatment of Abdominal Aortic Aneurysms in Frail Patients with Poor Anatomical Features. Scand J Surg 2020; 110:233-240. [DOI: 10.1177/1457496920917267] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Introduction: Endovascular aneurysm sealing represents an alternative to advanced technology devices for compromised patients with abdominal aortic aneurysms. We report our results of 15 fragile patients with very low-quality infrarenal necks treated with endovascular aneurysm sealing. Material and methods: All patients treated with Nellix device in our hospital between June 2015 and October 2016 were retrospectively reviewed. The primary endpoints are the following: overall survival and freedom from reintervention rates. The secondary endpoints are the following: technical success; 30-day mortality; abdominal aortic aneurysm–related mortality; and freedom from endoleak rate, complications, and surgical conversion rate. Results: Nellix was used in 15 patients, median age 75.5 years, of which 67% were unfit for open surgery. Mean aneurysm diameter was 60 mm. One-third (5/15) of the patients were inside the Nellix instructions for use. Technical success rate was 93.3%. No perioperative complications existed, and 30-day mortality was 0%. Median follow-up was 35 (interquartile range: 11–37) months. Survival rates at 1 and 3 years were 80% and 59.3%. Abdominal aortic aneurysm–related mortality occurred in 3 of 15 cases. Freedom from rupture rates at 1 and 3 years were 92.9% and 66%. Freedom from endoleak rates at 1 and 3 years were 92.9% and 74.5%. Freedom from reintervention rates at 1 and 3 years were 86.7% and 70.6%, with a dramatic drop to 37.1% at 4 years of follow-up. Three open surgery conversions were needed. There were no statistically significant differences in results between patients treated inside and outside instructions for use. Conclusion: The endovascular aneurysm sealing has shown encouraging short-term results, but its safety and effectiveness during time is questionable, because this system still carries high rates of reintervention, conversions for type IA endoleaks, and secondary aneurysm ruptures.
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Affiliation(s)
- A. Sonetto
- Department of Vascular Surgery, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
- Department of Vascular Surgery, DIMES, Azienda Policlinico S. Orsola-Malpighi, Alma Mater Studiorum—University of Bologna, Bologna, Italy
| | - S. Laukontaus
- Department of Vascular Surgery, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - L. Vikatmaa
- Department of Anesthesiology, Intensive care and Pain Medicine, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - P. Aho
- Department of Vascular Surgery, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - M. Venermo
- Department of Vascular Surgery, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
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