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Fan EY, Schanzer A, Beck AW, Eagleton MJ, Farber MA, Gasper WJ, Lee WA, Oderich GS, Parodi FE, Schneider DB, Sweet MP, Timaran CH, Simons JP. Practice patterns of antiplatelet and anticoagulant therapy after fenestrated/branched endovascular aortic repair. J Vasc Surg 2024:S0741-5214(24)01220-5. [PMID: 38796031 DOI: 10.1016/j.jvs.2024.05.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 04/02/2024] [Accepted: 05/20/2024] [Indexed: 05/28/2024]
Abstract
OBJECTIVE Antiplatelet and/or anticoagulant therapy are commonly prescribed after fenestrated/branched endovascular aortic repair (F/BEVAR). However, the optimal regimen remains unknown. We sought to characterize practice patterns and outcomes of antiplatelet and anticoagulant use in patients who underwent F/BEVAR. METHODS Consecutive patients enrolled (2012-2023) as part of the United States Aortic Research Consortium (US-ARC) from 10 independent physician-sponsored investigational device exemption studies were evaluated. The cohort was characterized by medication regimen on discharge from index F/BEVAR: (1) Aspirin alone OR P2Y12 alone (single-antiplatelet therapy [SAPT]); (2) Anticoagulant alone; (3) Aspirin + P2Y12 (dual-antiplatelet therapy [DAPT]); (4) Aspirin + anticoagulant OR P2Y12 + anticoagulant (SAPT + anticoagulant); (5) Aspirin + P2Y12 + anticoagulant (triple therapy [TT]); and (6) No therapy. Kaplan-Meier analysis and Cox proportional hazards modeling were used to compare 1-year outcomes including survival, target artery patency, freedom from bleeding complication, freedom from all reinterventions, and freedom from stent-specific reintervention. RESULTS Of the 1525 patients with complete exposure and outcome data, 49.6% were discharged on DAPT, 28.8% on SAPT, 13.6% on SAPT + anticoagulant, 3.2% on TT, 2.6% on anticoagulant alone, and 2.2% on no therapy. Discharge medication regimen was not associated with differences in 1-year survival, bleeding complications, composite reintervention rate, or stent-specific reintervention rate. However, there was a significant difference in 1-year target artery patency. On multivariable analysis comparing with SAPT, DAPT conferred a lower hazard of loss of target artery patency (hazard ratio [HR], 0.48; 95% confidence interval [CI], 0.27-0.84; P = .01). On sub-analyses of renal stents alone or visceral stents alone, DAPT no longer had a significantly lower hazard of loss of target artery patency (renal: HR, 0.66; 95% CI, 0.35-1.27; P = .22; visceral: HR, 0.31; 95% CI, 0.05-1.9; P = .21). Lastly, duration of DAPT therapy (1 month, 6 months, or 1 year) did not significantly affect target artery patency. CONCLUSIONS Practice patterns for antiplatelet and anticoagulant regimens after F/BEVAR vary widely across the US-ARC. There were no differences in bleeding complications, survival or reintervention rates among different regimens, but higher branch vessel patency was noted in the DAPT cohort. These data suggest there is a benefit in DAPT therapy. However, the generalizability of this finding is limited by the retrospective nature of this data, and the clinical significance of this finding is unclear, as there is no difference in survival, bleeding, or reintervention rates amongst the different regimens. Hence, an "optimal" regimen, including the duration of such regimen, could not be clearly discerned. This suggests equipoise for a randomized trial, nested within this cohort, to identify the most effective antiplatelet/anticoagulant regimen for the growing number of patients being treated globally with F/BEVAR.
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Kontopodis N, Galanakis N, Ioannou CV, Antoniou GA. Systematic Review and Meta-Analysis of the Effect of Anticoagulation on Outcomes After Endovascular Aneurysm Repair. J Endovasc Ther 2023:15266028231214761. [PMID: 38031419 DOI: 10.1177/15266028231214761] [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: 12/01/2023]
Abstract
PURPOSE Our objective was to investigate whether patients who receive anticoagulation therapy have different outcomes after endovascular aneurysm repair (EVAR) from those who do not. MATERIALS AND METHODS We conducted a systematic review of studies that compared outcomes of EVAR in patients who were on therapeutic anticoagulation vs those who were not. We developed and reported the review in accordance with the PRISMA guidelines with a registered protocol (CRD42022375894). The Ovid interface was used to search Medical Literature Analysis and Retrieval System Online (MEDLINE), Excerpta Medica Database (EMBASE), and Cochrane Central Register of Controlled Trials (CENTRAL) up to November 2022. The quality of studies was assessed with the Newcastle-Ottawa Scale (NOS) (maximum score=9), and the evidence was appraised with the Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) framework. The hazard ratio (HR) and 95% confidence interval (CI) was the effect estimate in time-to-event meta-analyses, calculated using the inverse-variance statistical method and random-effects models. RESULTS Sixteen studies qualified for inclusion reporting a total of 35 739 individuals. Anticoagulated patients had a statistically significantly higher hazard of death (HR=1.93, 95% CI=1.03-3.63), endoleak (HR=2.13, 95% CI=1.55-2.93), reintervention (HR=1.79, 95% CI=1.27-2.52), and aneurysm sac expansion (HR=2.72, 95% CI=1.57-4.72) than patients not receiving anticoagulation therapy. The median score on the NOS was 7 (range=4-9). The certainty of evidence was very low for mortality and reintervention and low for endoleak and sac expansion. CONCLUSIONS Anticoagulation is a poor prognostic factor after standard EVAR and should be considered in decision-making, consent processes, and surveillance strategies. CLINICAL IMPACT The number of individuals who take anticoagulation treatment has been rapidly increasing over the recent years. We aimed to investigate the effect of such treatment on outcomes after endovascular aneurysm repair (EVAR). Anticoagulated patients were found to have increased mortality, endoleak, and reintervention rates after EVAR compared to their non-anticoagulated counterparts. Anticoagulation therapy has a prognostic role in EVAR and should be considered in decision making and EVAR surveillance. Anticoagulated patients need to be informed of the higher failure rates of EVAR, and intensified surveillance strategies may need to be implemented in this patient cohort.
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Affiliation(s)
- Nikolaos Kontopodis
- Vascular Surgery Unit, Department of Cardiothoracic and Vascular Surgery, University Hospital of Heraklion, University of Crete, Heraklion, Greece
| | - Nikolaos Galanakis
- Interventional Radiology Unit, Department of Medical Imaging, University Hospital of Heraklion, University of Crete, Heraklion, Greece
| | - Christos V Ioannou
- Vascular Surgery Unit, Department of Cardiothoracic and Vascular Surgery, University Hospital of Heraklion, University of Crete, Heraklion, Greece
| | - George A Antoniou
- Manchester Vascular Centre, Manchester University NHS Foundation Trust, Manchester, UK
- Division of Cardiovascular Sciences, School of Medical Sciences, Manchester Academic Health Science Centre, The University of Manchester, Manchester, UK
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Salih M, Khorasanizadeh M, Salem MM, Baig AA, Kim H, Lucke-Wold B, Hoh BL, Jankowitz BT, Burkhardt JK, Siddiqui AH, Taussky P, Thomas AJ, Moore JM, Ogilvy CS. Effect of Chronic Anticoagulation on Outcomes of Endovascular Treatment for Unruptured Intracranial Aneurysms-A Propensity-Matched Multicenter Study. Neurosurgery 2023; 93:1007-1018. [PMID: 37255291 DOI: 10.1227/neu.0000000000002523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Accepted: 03/21/2023] [Indexed: 06/01/2023] Open
Abstract
BACKGROUND AND OBJECTIVES Endovascular treatment of unruptured intracranial aneurysms (UIAs) in patients receiving anticoagulant medications has not been well studied. Whether long-term anticoagulation (AC) use affects aneurysmal obliteration rates and treatment-related complications is unclear. METHODS Patients with endovascular treatment for UIA from 4 academic centers were identified and divided into AC and non-AC groups. Periprocedural complications, radiographic and clinical outcomes, and retreatment rates were compared between the 2 groups before and after propensity score matching. RESULTS The initial cohort consisted of 70 patients in the AC group and 355 in the non-AC group. After one-to-one nearest neighbor propensity matching, 38 pairs of patients were compared for periprocedural complications. The total number of complications were higher in the AC group yet not significant (18.4% vs 5.3%, P = .15). After adding imaging follow-up duration to matched variables, 36 pairs were obtained. There was no significant difference in Raymond-Roy occlusion rate between the 2 groups ( P = .74). However, retreatment rate trended higher in the AC group compared with the non-AC group (22.2% vs 5.6%, P = .09). When clinical follow-up duration was added among matched variables, 26 pairs of cases were obtained for long-term clinical outcomes. There was no significant difference in modified Rankin Scale score between the 2 groups ( P = .61). One-to-many nearest neighbor propensities matched analysis with bigger sample sizes yielded similar results. CONCLUSION The use of anticoagulants does not affect occlusion rates or long-term outcomes in endovascular treatment of UIAs. Retreatment rates were higher in the AC group; however, this was not statistically significant.
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Affiliation(s)
- Mira Salih
- Neurosurgical Service, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston , Massachusetts , USA
| | - MirHojjat Khorasanizadeh
- Neurosurgical Service, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston , Massachusetts , USA
| | - Mohamed M Salem
- Department of Neurosurgery, Hospital of the University of Pennsylvania, Penn Medicine, Philadelphia , Pennsylvania , USA
| | - Ammad A Baig
- University at Buffalo Neurosurgery, Buffalo , New York , USA
| | - Hoon Kim
- Neurosurgical Service, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston , Massachusetts , USA
| | - Brandon Lucke-Wold
- Department of Neurosurgery, University of Florida, Gainesville , Florida , USA
| | - Brian L Hoh
- Department of Neurosurgery, University of Florida, Gainesville , Florida , USA
| | - Brian T Jankowitz
- Department of Neurosurgery, Hospital of the University of Pennsylvania, Penn Medicine, Philadelphia , Pennsylvania , USA
| | - Jan-Karl Burkhardt
- Department of Neurosurgery, Hospital of the University of Pennsylvania, Penn Medicine, Philadelphia , Pennsylvania , USA
| | | | - Philipp Taussky
- Neurosurgical Service, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston , Massachusetts , USA
| | - Ajith J Thomas
- Neurosurgical Service, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston , Massachusetts , USA
| | - Justin M Moore
- Neurosurgical Service, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston , Massachusetts , USA
| | - Christopher S Ogilvy
- Neurosurgical Service, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston , Massachusetts , USA
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Bontekoe J, Matsumura J, Liu B. Thrombosis in the pathogenesis of abdominal aortic aneurysm. JVS Vasc Sci 2023; 4:100106. [PMID: 37564632 PMCID: PMC10410173 DOI: 10.1016/j.jvssci.2023.100106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 03/23/2023] [Indexed: 08/12/2023] Open
Abstract
Background Abdominal aortic aneurysms (AAAs) are a relatively common vascular pathology of the elderly with high morbidity potential. Irreversible degeneration of the aortic wall leads to lethal rupture if left untreated. Nearly all AAAs contain intraluminal thrombus (ILT) to a varying degree, yet the mechanisms explaining how thrombosis is disturbed in AAA are relatively unknown. This review examined the thrombotic complications associated with AAA, the impact of thrombosis on AAA surgical outcomes and AAA pathogenesis, and the use of antithrombotic therapy in the management of this disease. Methods A literature search of the PubMed database was conducted using relevant keywords related to thrombosis and AAAs. Results Thrombotic complications are relatively infrequent in AAA yet carry significant morbidity risks. The ILT can impact endovascular aneurysm repair by limiting anatomic suitability and influence the risk of endoleaks. Many of the pathologic mechanisms involved in AAA development, including hemodynamics, inflammation, oxidative stress, and aortic wall remodeling, contain pathways that interact with thrombosis. Conversely, the ILT can also be a source of biochemical stress and exacerbate these aneurysmal processes. In animal AAA models, antithrombotic therapies have shown favorable results in preventing and stabilizing AAA. Antiplatelet agents may be beneficial for reducing risks of major adverse cardiovascular events in AAA patients; however, neither antiplatelet nor anticoagulation is currently used solely for the management of AAA. Conclusions Thrombosis and ILT may have detrimental effects on AAA growth, rupture risk, and patient outcomes, yet there is limited understanding of the pathologic thrombotic mechanisms in aneurysmal disease at the molecular level. Preventing ILT using platelet and coagulation inhibitors may be a reasonable theoretical target for aneurysm progression and stability; however, the practical benefits of current antithrombotic therapies in AAA are unclear. Further research is needed to demonstrate the extent to which thrombosis impacts AAA pathogenesis and to develop novel pharmacologic strategies for the medical management of this disease.
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Affiliation(s)
- Jack Bontekoe
- Division of Vascular Surgery, Department of Surgery, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI
| | - Jon Matsumura
- Division of Vascular Surgery, Department of Surgery, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI
| | - Bo Liu
- Division of Vascular Surgery, Department of Surgery, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI
- Department of Cellular and Regenerative Biology, University of Wisconsin-Madison School of Medicine and Public Health, Madison, WI
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Bruijn LE, Louhichi J, Veger HTC, Wever JJ, van Dijk LC, van Overhagen H, Hamming JF, Statius van Eps RGS. Identifying Patients at High Risk for Post-EVAR Aneurysm Sac Growth. J Endovasc Ther 2023:15266028231158302. [PMID: 36927207 DOI: 10.1177/15266028231158302] [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: 03/18/2023]
Abstract
PURPOSE Post-EVAR (endovascular aneurysm repair) aneurysm sac growth can be seen as therapy failure as it is a risk factor for post-EVAR aneurysm rupture. This study sought to identify preoperative patient predictors for developing post-EVAR aneurysm sac growth. MATERIAL AND METHODS A systematic review was conducted to select potential predictive preoperative factors for post-EVAR sac growth (including a total of 34.886 patients), which were evaluated by a retrospective single-center analysis of patients undergoing EVAR between 2009 and 2019 (N=247) with pre-EVAR computed tomography scans and at least 1 year follow-up. The primary study outcome was post-EVAR abdominal aortic aneurysm (AAA) sac enlargement (≥5 mm diameter increase). Multivariate Cox regression and Kaplan-Meier survival curves were constructed. RESULTS Potential correlative factors for post-EVAR sac growth included in the cohort analysis were age, sex, anticoagulants, antiplatelets, renal insufficiency, anemia, low thrombocyte count, pulmonary comorbidities, aneurysm diameter, neck diameter, neck angle, neck length, configuration of intraluminal thrombus, common iliac artery diameter, the number of patent lumbar arteries, and a patent inferior mesenteric artery. Multivariate analysis showed that infrarenal neck angulation (hazard ratio, 1.014; confidence interval (CI), 1.001-1.026; p=0.034) and the number of patent lumbar arteries (hazard ratio, 1.340; CI, 1.131-1.588; p<0.001) were associated with post-EVAR growth. Difference in estimated freedom from post-EVAR sac growth for patients with ≥4 patent lumbar arteries versus <4 patent lumbar arteries became clear after 2 years: 88.5% versus 100%, respectively (p<0.001). Of note, 31% of the patients (n=51) with ≥4 patent lumbar arteries (n=167) developed post-EVAR sac growth. In our cohort, the median maximum AAA diameter was 57 mm (interquartile range [IQR] = 54-62) and the median postoperative follow-up time was 54 months (IQR = 34-79). In all, 23% (n=57) of the patients suffered from post-EVAR growth. The median time for post-EVAR growth was 37 months (IQR = 24-63). In 46 of the 57 post-EVAR growth cases (81%), an endoleak was observed; 2.4% (n=6) of the patients suffered from post-EVAR rupture. The total mortality in the cohort was 24% (n=60); 4% (n=10) was AAA related. CONCLUSIONS This study showed that having 4 or more patent lumbar arteries is an important predictive factor for postoperative sac growth in patients undergoing EVAR. CLINICAL IMPACT This study strongly suggests that having 4 or more patent lumbar arteries should be included in preoperative counseling for EVAR, in conjunction to the instructions for use (IFU).
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Affiliation(s)
- Laura E Bruijn
- Division of Vascular Surgery, Department of Surgery, Haga Teaching Hospital, The Hague, The Netherlands.,Division of Vascular Surgery, Department of Surgery, Leiden University Medical Center, Leiden, The Netherlands
| | - Jihene Louhichi
- Division of Vascular Surgery, Department of Surgery, Haga Teaching Hospital, The Hague, The Netherlands
| | - Hugo T C Veger
- Division of Vascular Surgery, Department of Surgery, Haga Teaching Hospital, The Hague, The Netherlands
| | - Jan J Wever
- Division of Vascular Surgery, Department of Surgery, Haga Teaching Hospital, The Hague, The Netherlands
| | - Lukas C van Dijk
- Division of Interventional Radiology, Department of Radiology, Haga Teaching Hospital, The Hague, The Netherlands
| | - Hendrik van Overhagen
- Division of Interventional Radiology, Department of Radiology, Haga Teaching Hospital, The Hague, The Netherlands
| | - Jaap F Hamming
- Division of Vascular Surgery, Department of Surgery, Leiden University Medical Center, Leiden, The Netherlands
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Wong KHF, Zlatanovic P, Bosanquet DC, Saratzis A, Kakkos SK, Aboyans V, Twine CP. Antithrombotic Therapy for Aortic Aneurysms: A Systematic Review and Meta-Analysis. Eur J Vasc Endovasc Surg 2022; 64:544-556. [PMID: 35853579 DOI: 10.1016/j.ejvs.2022.07.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Revised: 06/25/2022] [Accepted: 07/10/2022] [Indexed: 01/12/2023]
Abstract
OBJECTIVES The role of antithrombotic therapy in the management of aortic and peripheral aneurysms is unclear. This systematic review and meta-analysis aimed to assess the impact of antithrombotics on clinical outcomes for aortic and peripheral aneurysms. METHODS Medline, Embase, and CENTRAL databases were searched. Randomised controlled trials and observational studies investigating the effect of antithrombotic therapy on clinical outcomes for patients with any aortic or peripheral artery aneurysm were included. RESULTS Fifty-nine studies (28 with antiplatelet agents, 12 anticoagulants, two intra-operative heparin, and 16 any antithrombotic agent) involving 122 102 patients were included. Abdominal aortic aneurysm (AAA) growth rate was not significantly associated with the use of antiplatelet therapy (SMD -0.36 mm/year; 95% CI -0.75 - 0.02; p = .060; GRADE certainty: very low). Antithrombotics were associated with increased 30 day mortality for patients with AAAs undergoing intervention (OR 2.30; 95% CI 1.51 - 3.51; p < .001; GRADE certainty: low). Following intervention, antiplatelet therapy was associated with reduced long term all cause mortality (HR 0.84; 95% CI 0.76 - 0.92; p < .001; GRADE certainty: moderate), whilst anticoagulants were associated with increased all cause mortality (HR 1.64; 95% CI 1.14 - 2.37; p = .008; GRADE certainty: very low), endoleak within three years (OR 1.99; 95% CI 1.10 - 3.60; p = .020; I2 = 60%; GRADE certainty: very low), and an increased re-intervention rate at one year (OR 3.25; 95% CI 1.82 - 5.82; p < .001; I2 = 35%; GRADE certainty: moderate). Five studies examined antithrombotic therapy for popliteal aneurysms. Meta-analysis was not possible due to heterogeneity. CONCLUSIONS There was a lack of high quality data examining antithrombotic therapy for patients with aneurysms. Antiplatelet therapy was associated with a reduction in post-intervention all cause mortality for AAA, whilst anticoagulants were associated with an increased risk of all cause mortality, endoleak, and re-intervention. Large, well designed trials are still required to determine the therapeutic benefits of antithrombotic agents in this setting.
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Affiliation(s)
- Kitty H F Wong
- Bristol Centre for Surgical Research, Bristol Medical School, University of Bristol, Bristol, UK; North Bristol NHS Trust, Bristol, UK
| | - Petar Zlatanovic
- Clinic for Vascular and Endovascular Surgery, Clinical Centre of Serbia, Belgrade, Serbia
| | | | | | - Stavros K Kakkos
- Department of Vascular Surgery, University of Patras Medical School, Patras, Greece
| | - Victor Aboyans
- Department of Cardiology, Dupuytren University Hospital, EpiMaCT, Inserm 1094 & IRD, Limoges University, Limoges, France
| | - Christopher P Twine
- Bristol Centre for Surgical Research, Bristol Medical School, University of Bristol, Bristol, UK; North Bristol NHS Trust, Bristol, UK.
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Sugimoto M, Banno H, Sato T, Ikeda S, Tsuruoka T, Kawai Y, Niimi K, Kodama A, Komori K. Factors Associated With Spontaneous Sac Shrinkage in Patients With Persistent Type 2 Endoleaks After EVAR. J Endovasc Ther 2022:15266028221083457. [PMID: 35287500 DOI: 10.1177/15266028221083457] [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
PURPOSE Despite controversy surrounding the management of type 2 endoleaks (T2ELs) after endovascular aortic aneurysm repair (EVAR), the current European guidelines recommend reintervention for T2ELs when the aneurysm expands by ≥10 mm. Meanwhile, sac shrinkage ≥10 mm can be considered low risk for failure even with T2ELs, and the guidelines suggest less frequent follow-up delayed until 5 years after EVAR. This study reviewed patients with persistent T2ELs to identify predictors of spontaneous sac shrinkage (SpS) within 5 years. METHODS A retrospective review of elective EVAR for infrarenal aortic aneurysms between June 2007 and December 2017. Patients with >1 year follow-up and persistent T2ELs, defined as T2ELs confirmed at both the 6 and 12 month follow-up with contrast-enhanced computed tomography (CT), were included. Any reintervention or type 1 or 3 endoleaks within 12 months were excluded. SpS was defined as a ≥10 mm reduction in diameter without any reintervention. Aneurysm enlargement (AnE) was defined as a ≥5 mm increase in diameter. Factors associated with SpS within 5 years were analyzed. The clinical outcomes were reviewed. RESULTS Among 726 patients, 162 patients had persistent isolated T2ELs. After excluding 21 patients, 141 patients were enrolled. During a median follow-up of 43 months (interquartile range [IQR], 26-60), 28 SpS and 39 AnE were observed, and 31 reinterventions were performed. The cumulative rates of SpS were 14.2%±2.9% and 25.6%±5.1% at 1 and 5 years. Cox regression analysis revealed that the presence of ≥6 patent lumbar arteries had a significant negative correlation with SpS (p=0.036). During further follow-up after SpS, 2 reinterventions for type 1a and 3b endoleaks were required at 49 and 45 months. CONCLUSIONS Patients with fewer patent lumbar arteries were likely to experience SpS within 5 years, even in the presence of persistent T2ELs. Follow-up imaging studies were advisable earlier than 5 years, even after SpS.
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Affiliation(s)
- Masayuki Sugimoto
- Division of Vascular and Endovascular Surgery, Department of Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hiroshi Banno
- Division of Vascular and Endovascular Surgery, Department of Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tomohiro Sato
- Division of Vascular and Endovascular Surgery, Department of Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Shuta Ikeda
- Division of Vascular and Endovascular Surgery, Department of Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takuya Tsuruoka
- Division of Vascular and Endovascular Surgery, Department of Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yohei Kawai
- Division of Vascular and Endovascular Surgery, Department of Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kiyoaki Niimi
- Division of Vascular and Endovascular Surgery, Department of Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Akio Kodama
- Division of Vascular and Endovascular Surgery, Department of Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kimihiro Komori
- Division of Vascular and Endovascular Surgery, Department of Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Kong DS, Balceniuk MD, Mix D, Ellis JL, Doyle AJ, Glocker RJ, Stoner MC. Long-Term Anticoagulation is Associated with Type II Endoleaks and Failure of Sac Regression After Endovascular Aneurysm Repair. J Vasc Surg 2022; 76:437-444.e2. [DOI: 10.1016/j.jvs.2022.01.144] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Accepted: 01/31/2022] [Indexed: 01/21/2023]
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Harada A, Morisaki K, Kurose S, Yoshino S, Yamashita S, Furuyama T, Mori M. Internal Iliac Artery Aneurysm Ruptures with No Visualized Endoleak 2 Years after Endovascular Repair. Ann Vasc Dis 2022; 15:45-48. [PMID: 35432644 PMCID: PMC8958399 DOI: 10.3400/avd.cr.21-00019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 11/05/2021] [Indexed: 11/18/2022] Open
Abstract
We report a case of an 83-year-old man with a ruptured internal iliac artery (IIA) aneurysm after endovascular repair, which was treated via the ligation of IIA and tight suture of the aneurysm sac. Although there were no findings of obvious endoleak after endovascular treatment, the IIA aneurysm increased in size and eventually ruptured. We presumed that pressure to IIA aneurysm via the embolized IIA led to rupture. Aneurysm sac expansion may lead to a rupture despite no endoleak being detected; therefore, close follow-up or re-intervention must be considered. Tight embolization of IIA may prevent endotension in the same case.
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Affiliation(s)
- Ayumi Harada
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University
| | - Koichi Morisaki
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University
| | - Shun Kurose
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University
| | - Shinichiro Yoshino
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University
| | - Sho Yamashita
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University
| | - Tadashi Furuyama
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University
| | - Masaki Mori
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University
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Kondov S, Dimov A, Beyersdorf F, Maruschke L, Pooth JS, Kreibich M, Kaier K, Siepe M, Czerny M, Rylski B. OUP accepted manuscript. Interact Cardiovasc Thorac Surg 2022; 35:6568948. [PMID: 35425973 PMCID: PMC9252125 DOI: 10.1093/icvts/ivac016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 01/10/2022] [Accepted: 01/27/2022] [Indexed: 12/02/2022] Open
Affiliation(s)
- Stoyan Kondov
- Department of Cardiovascular Surgery, Faculty of Medicine, University Heart Centre, University Hospital Freiburg, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
- Corresponding author. Department of Cardiovascular Surgery, Heart Centre Freiburg University, Hugstetter Str. 55, D-79106 Freiburg, Germany. Phone: +49 76127028180; fax: +49 76127025500; e-mail:
| | - Aleksandar Dimov
- Department of Cardiovascular Surgery, Faculty of Medicine, University Heart Centre, University Hospital Freiburg, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Friedhelm Beyersdorf
- Department of Cardiovascular Surgery, Faculty of Medicine, University Heart Centre, University Hospital Freiburg, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Lars Maruschke
- Center of Diagnostic and interventional Radiology, St. Josefs Hospital, Freiburg, Germany
| | - Jan-Steffen Pooth
- Department of Cardiovascular Surgery, Faculty of Medicine, University Heart Centre, University Hospital Freiburg, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Maximilian Kreibich
- Department of Cardiovascular Surgery, Faculty of Medicine, University Heart Centre, University Hospital Freiburg, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Klaus Kaier
- Center for Medical Biometry and Informatics, University Medical Center, Freiburg, Germany
| | - Matthias Siepe
- Department of Cardiovascular Surgery, Faculty of Medicine, University Heart Centre, University Hospital Freiburg, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Martin Czerny
- Department of Cardiovascular Surgery, Faculty of Medicine, University Heart Centre, University Hospital Freiburg, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
| | - Bartosz Rylski
- Department of Cardiovascular Surgery, Faculty of Medicine, University Heart Centre, University Hospital Freiburg, Albert-Ludwigs-University of Freiburg, Freiburg, Germany
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Morisaki K, Matsubara Y, Furuyama T, Kurose S, Yoshino S, Yamashita S, Mori M. Effects of antithrombotic therapy on abdominal aortic aneurysm sac size after endovascular repair in patients with favorable neck anatomy. J Vasc Interv Radiol 2021; 33:113-119. [PMID: 34742897 DOI: 10.1016/j.jvir.2021.10.025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 10/16/2021] [Accepted: 10/26/2021] [Indexed: 11/18/2022] Open
Abstract
PURPOSE To evaluate the influence of antiplatelet or anticoagulant therapy on sac behavior after endovascular aneurysm repair (EVAR) for abdominal aortic aneurysm (AAA) MATERIALS AND METHODS: This study retrospectively analyzed data from patients with favorable neck anatomy who underwent EVAR between 2007 and 2019. Patients with ruptured AAA and ≤1 year of sac behavior evaluation were excluded. Sac shrinkage after 1 year, persistent type II endoleak, and late sac expansion were examined. RESULTS In total, 182 patients with favorable neck anatomy were included in this study. Multivariable analysis identified occluded inferior mesenteric artery (IMA [P = .049]), presence of posterior thrombus (P = .009) and no antiplatelet therapy (P = .012) as factors positively associated with sac shrinkage at 1 year. Persistent type II endoleak was detected in 56 (30.8%) patients, with patent IMA (P = .006), lack of posterior thrombus (P = .004), number of patent lumbar arteries (P = .004), and antiplatelet therapy (P = .039) being identified as significant risk factors. Multivariable analysis identified larger initial AAA diameter (P < .001), lack of posterior thrombus (P = .038), and antiplatelet (P = .038) and anticoagulation therapies (P = .003) as risk factors for late sac expansion. CONCLUSIONS After EVAR in patients with favorable neck anatomy, antiplatelet therapy is associated with lack of sac regression at 1 year, whereas antiplatelet and anticoagulant therapies are risk factors for late sac expansion.
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Affiliation(s)
- Koichi Morisaki
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
| | - Yutaka Matsubara
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Tadashi Furuyama
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Shun Kurose
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Shinichiro Yoshino
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Sho Yamashita
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Masaki Mori
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu University, 3-1-1, Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
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Flohr TR, Snow R, Aziz F. The fate of endoleaks after endovascular aneurysm repair and the impact of oral anticoagulation on their persistence. J Vasc Surg 2021; 74:1183-1192.e5. [PMID: 33940069 DOI: 10.1016/j.jvs.2021.04.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 04/13/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND The impact of anticoagulation on late endoleaks after endovascular aneurysm repair (EVAR) is unclear despite multiple investigators studying the relationship. The purpose of this study was to determine if long-term anticoagulation impacted the development of late endoleaks and if specific anticoagulants were more likely to exacerbate the development of endoleaks. METHODS Using the Society for Vascular Surgery Vascular Quality Initiative database, patients undergoing EVAR between 2003 and 2019 for abdominal aortic aneurysms were evaluated. Patients were divided into two groups: those without a late endoleak and those with a late endoleak. Bivariate analysis was performed to assess preoperative, intraoperative, postoperative, and long-term follow-up variables. A multivariable analysis was done to determine associations of independent variables with late endoleaks. Patients were further subcategorized based on anticoagulation status before and after EVAR, specific type of anticoagulation, and the presence of an index endoleaks (diagnosed at the time of EVAR) to determine the subsequent frequency of late endoleaks. RESULTS A total of 29,783 patients were analyzed with 2169 (7.3%) having a late endoleak identified. Several risk factors were related to late endoleaks, including anticoagulation before and after EVAR (odds ratio [OR], 4.23; 95% confidence interval [CI], 2.57-6.96; P < .001), anticoagulation after EVAR (OR, 1.88; 95% CI, 1.43-2.49; P < .001), and index endoleak (OR, 1.45; 95% CI, 1.26-1.66; P < .001). The frequency of late endoleaks in patients anticoagulated before and after EVAR and after EVAR as compared with those never anticoagulated was 16.89% and 14.40% vs 6.95%, respectively (both P > .001). No difference in late endoleaks were noted for patients treated with warfarin and novel oral anticoagulants. The most common type of index and late endoleak identified was type II, but patients with type I, type II, and type IV index endoleaks were more commonly found to have type I, type II, and type IV late endoleaks, respectively. The frequency of late endoleaks in patients with both an index endoleak and anticoagulation after EVAR was 20.42% as compared with patients with only anticoagulation after EVAR (14.63%; P = .0015) and with patients with index endoleaks not anticoagulated (10.06%; P < .00001). CONCLUSIONS Late endoleaks were more common in patients treated with anticoagulation after EVAR. No difference in late endoleak frequency was detected between anticoagulation with warfarin and novel oral anticoagulants. Patients on anticoagulation and those with an index endoleak were at a higher risk of having a late endoleak.
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Affiliation(s)
- Tanya R Flohr
- Division of Vascular Surgery, Penn State Heart and Vascular Institute, Penn State College of Medicine, Hershey, Pa.
| | - Rachael Snow
- Division of Vascular Surgery, Penn State Heart and Vascular Institute, Penn State College of Medicine, Hershey, Pa
| | - Faisal Aziz
- Division of Vascular Surgery, Penn State Heart and Vascular Institute, Penn State College of Medicine, Hershey, Pa
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Cannavale A, Lucatelli P, Corona M, Nardis P, Basilico F, De Rubeis G, Santoni M, Catalano C, Bezzi M. Evolving concepts and management of endoleaks after endovascular aneurysm repair: where do we stand in 2019? Clin Radiol 2019; 75:169-178. [PMID: 31810539 DOI: 10.1016/j.crad.2019.10.023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Accepted: 10/31/2019] [Indexed: 11/27/2022]
Abstract
In recent years, there has been tremendous progress in endovascular aneurysm repair (EVAR) techniques and devices. This process has seen a change in incidence, risk factors, and treatment of endoleaks as well as in follow-up protocols after EVAR. In particular, recent literature has highlighted new concepts in the evaluation and prevention/treatment of type I and II endoleak after standard EVAR. There is also recent evidence regarding new imaging protocols for follow-up after EVAR, which include magnetic resonance imaging and contrast-enhanced ultrasound. This comprehensive review aims to outline the most recent concepts on imaging follow-up, pathophysiology/risk factors, and management of endoleaks.
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Affiliation(s)
- A Cannavale
- Vascular and Interventional Unit, Department of Radiological Sciences, Policlinico Umberto I, "Sapienza" University of Rome, Rome, Italy.
| | - P Lucatelli
- Vascular and Interventional Unit, Department of Radiological Sciences, Policlinico Umberto I, "Sapienza" University of Rome, Rome, Italy
| | - M Corona
- Vascular and Interventional Unit, Department of Radiological Sciences, Policlinico Umberto I, "Sapienza" University of Rome, Rome, Italy
| | - P Nardis
- Vascular and Interventional Unit, Department of Radiological Sciences, Policlinico Umberto I, "Sapienza" University of Rome, Rome, Italy
| | - F Basilico
- Vascular and Interventional Unit, Department of Radiological Sciences, Policlinico Umberto I, "Sapienza" University of Rome, Rome, Italy
| | - G De Rubeis
- Vascular and Interventional Unit, Department of Radiological Sciences, Policlinico Umberto I, "Sapienza" University of Rome, Rome, Italy
| | - M Santoni
- Department of Radiological Sciences, "Sapienza" University of Rome, Rome, Italy
| | - C Catalano
- Department of Radiological Sciences, "Sapienza" University of Rome, Rome, Italy
| | - M Bezzi
- Vascular and Interventional Unit, Department of Radiological Sciences, Policlinico Umberto I, "Sapienza" University of Rome, Rome, Italy
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Goggs R, Blais MC, Brainard BM, Chan DL, deLaforcade AM, Rozanski E, Sharp CR. American College of Veterinary Emergency and Critical Care (ACVECC) Consensus on the Rational Use of Antithrombotics in Veterinary Critical Care (CURATIVE) guidelines: Small animal. J Vet Emerg Crit Care (San Antonio) 2019; 29:12-36. [PMID: 30654421 DOI: 10.1111/vec.12801] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 12/12/2018] [Accepted: 12/07/2018] [Indexed: 12/19/2022]
Abstract
OBJECTIVES To systematically review available evidence and establish guidelines related to the risk of developing thrombosis and the management of small animals with antithrombotics. DESIGN Standardized, systematic evaluation of the literature (identified by searching Medline via PubMed and CAB abstracts) was carried out in 5 domains (Defining populations at risk; Defining rational therapeutic use; Defining evidence-based protocols; Refining and monitoring antithrombotic therapies; and Discontinuing antithrombotic therapies). Evidence evaluation was carried out using Population, Intervention, Comparison, Outcome generated within each domain questions to address specific aims. This was followed by categorization of relevant articles according to level of evidence and quality (Good, Fair, or Poor). Synthesis of these data led to the development of a series of statements. Consensus on the final guidelines was achieved via Delphi-style surveys. Draft recommendations were presented at 2 international veterinary conferences and made available for community assessment, review, and comment prior to final revisions and publication. SETTINGS Academic and referral veterinary medical centers. RESULTS Over 500 studies were reviewed in detail. Worksheets from all 5 domains generated 59 statements with 83 guideline recommendations that were refined during 3 rounds of Delphi surveys. A high degree of consensus was reached across all guideline recommendations. CONCLUSIONS Overall, systematic evidence evaluations yielded more than 80 recommendations for the treatment of small animals with or at risk of developing thrombosis. Numerous significant knowledge gaps were highlighted by the evidence reviews undertaken, indicating the need for substantial additional research in this field.
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Affiliation(s)
- Robert Goggs
- Department of Clinical Sciences, Cornell University College of Veterinary Medicine, Ithaca, NY
| | - Marie-Claude Blais
- Department of Clinical Sciences, Faculty of Veterinary Medicine, University of Montreal, Saint-Hyacinthe, QC, Canada
| | - Benjamin M Brainard
- Department of Small Animal Medicine and Surgery, University of Georgia, Athens, GA
| | - Daniel L Chan
- Department Clinical Science and Services, The Royal Veterinary College, London, United Kingdom
| | - Armelle M deLaforcade
- Department of Clinical Sciences, Cummings School of Veterinary Medicine, Tufts University, North Grafton, MA
| | - Elizabeth Rozanski
- Department of Clinical Sciences, Cummings School of Veterinary Medicine, Tufts University, North Grafton, MA
| | - Claire R Sharp
- School of Veterinary and Life Sciences, College of Veterinary Medicine, Murdoch University, Murdoch, WA, Australia
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Brainard BM, Buriko Y, Good J, Ralph AG, Rozanski EA. Consensus on the Rational Use of Antithrombotics in Veterinary Critical Care (CURATIVE): Domain 5-Discontinuation of anticoagulant therapy in small animals. J Vet Emerg Crit Care (San Antonio) 2019; 29:88-97. [PMID: 30654425 DOI: 10.1111/vec.12796] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 12/10/2018] [Accepted: 12/08/2018] [Indexed: 12/27/2022]
Abstract
OBJECTIVES To systematically evaluate the evidence supporting the timing and mechanisms of permanent or temporary discontinuation of antiplatelet or anticoagulant medications in small animals DESIGN: Standardized, systematic evaluation of the literature, categorization of relevant articles according to level of evidence and quality (poor, fair, or good), and development of consensus on conclusions via a Delphi-style survey for application of the concepts to clinical practice. SETTINGS Academic and referral veterinary medical centers. RESULTS Databases searched included Medline via PubMed and CAB abstracts. Two specific courses of inquiry were pursued, one focused on appropriate approaches to use for small animal patients receiving antiplatelet or anticoagulant drugs and requiring temporary discontinuation of this therapy for the purposes of invasive procedures (eg, surgery), and the other aimed at decision-making for the complete discontinuation of anticoagulant medications. In addition, the most appropriate methodology for discontinuation of heparins was addressed. CONCLUSIONS To better define specific patient groups, a risk stratification characterization was developed. It is recommended to continue anticoagulant therapy through invasive procedures in patients at high risk for thrombosis that are receiving anticoagulant therapy, while consideration for discontinuation in patients with low to moderate risk of thrombosis is reasonable. In patients with thrombosis in whom the underlying cause for thrombosis has resolved, indefinite treatment with anticoagulant medication is not recommended. If the underlying cause is unknown or untreatable, anticoagulant medication should be continued indefinitely. Unfractionated heparin therapy should be slowly tapered rather than discontinued abruptly.
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Affiliation(s)
- Benjamin M Brainard
- Department of Small Animal Medicine and Surgery, College of Veterinary Medicine, University of Georgia, Athens, GA
| | - Yekaterina Buriko
- Department of Clinical Studies, Philadelphia, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA
| | - Jennifer Good
- Department of Small Animal Medicine and Surgery, College of Veterinary Medicine, University of Georgia, Athens, GA
| | | | - Elizabeth A Rozanski
- Department of Clinical Sciences, Tufts Cummings School of Veterinary Medicine, North Grafton, MA
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Li B, Montbriand J, Eisenberg N, Roche-Nagle G, Tan KT, Byrne J. Pre-operative Aneurysm Thrombus Volume, But Not Density, Predicts Type 2 Endoleak Rate Following Endovascular Aneurysm Repair. Ann Vasc Surg 2018; 57:98-108. [PMID: 30500629 DOI: 10.1016/j.avsg.2018.09.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 07/25/2018] [Accepted: 09/21/2018] [Indexed: 11/17/2022]
Abstract
BACKGROUND The impact of aneurysm thrombus characteristics on type 2 endoleak rate following endovascular aneurysm repair (EVAR) for abdominal aortic aneurysm (AAA) is unclear. The purpose of this study is to determine the impact of pre-operative aneurysm thrombus volume and density on the incidence of type 2 endoleak following EVAR for infrarenal AAA. METHODS A retrospective analysis was completed on all patients who underwent standard EVAR at an academic medical institution between May 1, 2010 and June 1, 2016 with a minimum follow-up period of 12 months. The final analysis included 170 patients. Thrombus volume and density were determined by analyzing pre-operative computed tomography angiography (CTA) scans using the TeraRecon plaque analysis module. The number and diameter of patent infrarenal aortic branch vessels were also identified. Type 2 endoleak was diagnosed by post-operative CTA, duplex ultrasound, or angiography. RESULTS Over a median follow-up period of 29 months, 88 (51.8%) of 170 patients had a type 2 endoleak. The thrombus volume as a proportion of the infrarenal aorta volume was significantly lower in patients with type 2 endoleak (odds ratio [OR] 0.034, 95% confidence interval [CI] 0.005-0.291, P = 0.002). The number of patent lumbar arteries was significantly greater in patients with type 2 endoleak (OR 1.45, 95% CI 1.16-1.56, P < 0.0005). Both variables independently predicted the incidence of type 2 endoleak in a multivariate analysis. Thrombus density was not related to the incidence of type 2 endoleak. CONCLUSIONS A lower ratio of thrombus volume/infrarenal aorta volume and a higher number of patent lumbar arteries were associated with an increased incidence of type 2 endoleak. A multivariate logistic regression model was generated to pre-operatively predict the risk of type 2 endoleak. This model can guide the stratification of patients for intensity of endoleak surveillance following EVAR and consideration of pre-operative treatment.
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Affiliation(s)
- Ben Li
- Division of Vascular Surgery, Department of Surgery, Toronto General Hospital, University Health Network, University of Toronto, Toronto, ON, Canada
| | - Janice Montbriand
- Division of Vascular Surgery, Department of Surgery, Toronto General Hospital, University Health Network, University of Toronto, Toronto, ON, Canada
| | - Naomi Eisenberg
- Division of Vascular Surgery, Department of Surgery, Toronto General Hospital, University Health Network, University of Toronto, Toronto, ON, Canada
| | - Graham Roche-Nagle
- Division of Vascular Surgery, Department of Surgery, Toronto General Hospital, University Health Network, University of Toronto, Toronto, ON, Canada; Division of Vascular and Interventional Radiology, Department of Medical Imaging, Toronto General Hospital, University Health Network, University of Toronto, Toronto, ON, Canada
| | - Kong Teng Tan
- Division of Vascular and Interventional Radiology, Department of Medical Imaging, Toronto General Hospital, University Health Network, University of Toronto, Toronto, ON, Canada
| | - John Byrne
- Division of Vascular Surgery, Department of Surgery, Toronto General Hospital, University Health Network, University of Toronto, Toronto, ON, Canada.
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Langenberg JC, Roijers J, Ho GH, Veen EJ, Vos D, Buimer T, De Groot HG, van der Laan L. Post-EVAR aneurysm sac shrinkage is prognostically favorable, but does not justify withholding follow-up. THE JOURNAL OF CARDIOVASCULAR SURGERY 2018; 61:317-322. [PMID: 30465414 DOI: 10.23736/s0021-9509.18.10584-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND One of the main drawbacks of endovascular aortic aneurysm repair (EVAR) compared to open aortic surgery is the possibility of developing endoleaks and secondary aneurysm rupture, requiring frequent imaging follow-up. This study aims to identify prognostic factors that could be incorporated in follow-up protocols, which might lead to better personalized, lower cost and safe EVAR follow-up. METHODS A retrospective study was performed including all patients who underwent elective EVAR from January 2000 to December 2015. Follow-up data were gathered by reviewing medical files for radiographic imaging. Linear and logistic regressions were used to assess predictive factors for aneurysm shrinkage. RESULTS In 361 patients, aneurysm sac shrinkage of 10 mm or more was measured in 152 (42.1%) patients. Patients with ≥10-mm aneurysm shrinkage had fewer endoleaks (4.3% vs. 24.6%, P<0.0001) and fewer re-interventions for endoleak (3.0% vs. 10.1%, P=0.007). Aneurysm sac shrinkage was correlated with the absence of endoleak development (OR 0.36, 95% CI 0.19-0.66, P=0.001). In patients who had achieved ≥10-mm shrinkage of the aneurysm sac, no further significant growth was seen, compared to 38 (15.3%) patients who did not attain size reduction (P<0.001). CONCLUSIONS Once patients achieve ≥10-mm aneurysm sac shrinkage, they are less prone to developing subsequent aneurysm growth and have significantly lower risk of requiring surgery for endoleaks. However, a small number of patients remain at risk of requiring endoleak surgery after aneurysm shrinkage. Therefore, we would not recommend ceasing life-long imaging follow-up after significant aneurysm sac shrinkage, though it might be safe to increase the interval of follow-up.
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Affiliation(s)
| | - Joost Roijers
- Department of Surgery, Amphia Hospital, Breda, the Netherlands
| | - Gwan H Ho
- Department of Surgery, Amphia Hospital, Breda, the Netherlands
| | - Eelco J Veen
- Department of Surgery, Amphia Hospital, Breda, the Netherlands
| | - Douwe Vos
- Department of Radiology, Amphia Hospital, Breda, the Netherlands
| | - Thijs Buimer
- Department of Surgery, Amphia Hospital, Breda, the Netherlands
| | - Hans G De Groot
- Department of Surgery, Amphia Hospital, Breda, the Netherlands
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18
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Early sac shrinkage is a good surrogate marker of durable success after endovascular aneurysm repair in Japanese patients. J Vasc Surg 2018; 67:1410-1418.e1. [DOI: 10.1016/j.jvs.2017.08.076] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Accepted: 08/16/2017] [Indexed: 11/23/2022]
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Balceniuk MD, Trakimas LE, Aghaie C, Mix D, Rasheed K, Ellis J, Glocker R, Doyle A, Stoner MC. Aspirin use is associated with decreased radiologically-determined thrombus sac volume in abdominal aortic aneurysms. Vascular 2018; 26:440-444. [PMID: 29473449 DOI: 10.1177/1708538118762214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Introduction Formation and renewal of intramural thrombus is associated with inflammation, and contributes to the complexity of aneurysm repair. Current cardiovascular pharmacotherapy includes several inflammatory modulators such as aspirin, statins, clopidogrel, and angiotensin-converting enzyme inhibitors. The purpose of our study was to investigate the effect of these inflammatory modulators on radiographically-determined thrombus sac volume. Methods Pre-operative computed tomography scans were reviewed in patients who underwent elective infrarenal aortic aneurysm repair. Thrombus sac volume was obtained using a Hounsfield unit restricted region growth algorithm. Co-morbid conditions such as diabetes mellitus and post-operative complications were evaluated compared to thrombus sac volume. Receiver-operator characteristic curves were generated for thrombus sac volume and patients on the various cardiovascular pharmacotherapies. Results A total of 266 patients (mean age = 72.6 ± 0.6 years; mean thrombus sac volume = 58.7 (34.4-89.0) cm3) were identified. Acetylsalicylic acid use was associated with a decreased thrombus sac volume ≤50 cm3 (AUC = 0.616, p = 0.013) whereas statins ( p = 0.26), angiotensin-converting enzyme inhibitors ( p = 0.46), and clopidogrel ( p = 0.62) had no correlation to thrombus sac volume. Diabetes mellitus was not associated with thrombus sac volume ( p = 0.31). Conclusion Acetylsalicylic acid use is associated with decreased thrombus sac volume in a patient population undergoing elective abdominal aortic aneurysms repair. The effect of acetylsalicylic acid over other anti-inflammatory and anti-platelet agents is possibly attributable to its distinct mechanism of cyclooxygenase-1 inhibition. Diabetes mellitus, a known correlate of aneurysm incidence, is not associated with thrombus burden. The potential to alter aneurysm thrombus volume, thereby affecting aneurysm morphology, may yield a more favorable aneurysmal repair.
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Affiliation(s)
- Mark D Balceniuk
- University of Rochester, Strong Memorial Hospital, Rochester, NY, USA
| | - Lauren E Trakimas
- University of Rochester, Strong Memorial Hospital, Rochester, NY, USA
| | - Claudia Aghaie
- University of Rochester, Strong Memorial Hospital, Rochester, NY, USA
| | - Doran Mix
- University of Rochester, Strong Memorial Hospital, Rochester, NY, USA
| | - Khurram Rasheed
- University of Rochester, Strong Memorial Hospital, Rochester, NY, USA
| | - Jennifer Ellis
- University of Rochester, Strong Memorial Hospital, Rochester, NY, USA
| | - Roan Glocker
- University of Rochester, Strong Memorial Hospital, Rochester, NY, USA
| | - Adam Doyle
- University of Rochester, Strong Memorial Hospital, Rochester, NY, USA
| | - Michael C Stoner
- University of Rochester, Strong Memorial Hospital, Rochester, NY, USA
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20
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Effect of antiplatelet therapy on aneurysmal sac expansion associated with type II endoleaks after endovascular aneurysm repair. J Vasc Surg 2017; 66:396-403. [DOI: 10.1016/j.jvs.2016.11.032] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 11/14/2016] [Indexed: 11/17/2022]
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21
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Systematic Review and Meta-Analysis of Preoperative Risk Factors of Type II Endoleaks after Endovascular Aneurysm Repair. Ann Vasc Surg 2017; 41:284-293. [DOI: 10.1016/j.avsg.2016.08.021] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Revised: 08/01/2016] [Accepted: 08/02/2016] [Indexed: 12/17/2022]
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22
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Morisaki K, Yamaoka T, Iwasa K, Ohmine T, Guntani A. Preoperative risk factors for aneurysm sac expansion caused by type 2 endoleak after endovascular aneurysm repair. Vascular 2017; 25:533-541. [DOI: 10.1177/1708538117702787] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Purpose The objective of this study was to investigate the preoperatively definable risk factors which predict the aneurysm sac expansion caused by persistent type 2 endoleak after endovascular aneurysm repair. Methods Between 2008 and 2014, retrospective analysis was performed to examine the predictive risk factors for aneurysm sac enlargement caused by persistent type 2 endoleak, which was defined as a continuous endoleak present for more than six months. Aneurysm sac expansion was diagnosed if the maximum transverse diameter increased by 5 mm or more compared with the preoperative measurement. Results During the study period, endovascular aneurysm repair was performed in 211 patients with abdominal aortic aneurysm and common iliac artery aneurysm. Sac enlargement for type 2 endoleaks was observed in 20 patients (9.5%). The presence of more than five patent lumbar arteries flowing into aneurysm sac in the preoperative computed tomography (hazard ratio, 3.37; 95% confidence interval, 1.24–10.8; p = 0.017) was a predictive factor for sac expansion caused by persistent type 2 endoleak on Cox regression analysis. The presence of a patent inferior mesenteric artery was not associated with the sac expansion caused by persistent type 2 endoleak. Conclusions The presence of more than five lumbar arteries flowing into the aneurysm sac was a preoperative risk factor for sac expansion caused by persistent type 2 endoleak.
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Affiliation(s)
- Koichi Morisaki
- Department of Vascular Surgery, Matsuyama Red Cross Hospital, Ehime, Japan
| | - Terutoshi Yamaoka
- Department of Vascular Surgery, Matsuyama Red Cross Hospital, Ehime, Japan
| | - Kazuomi Iwasa
- Department of Vascular Surgery, Matsuyama Red Cross Hospital, Ehime, Japan
| | - Takahiro Ohmine
- Department of Vascular Surgery, Hiroshima Red Cross Hospital and Atomic-bomb Survivors Hospital, Hiroshima, Japan
| | - Atsushi Guntani
- Department of Vascular Surgery, Saiseikai Yahata General Hospital, Fukuoka, Japan
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Müller-Wille R, Güntner O, Zeman F, Dollinger M, Hälg C, Beyer LP, Pfister K, Kasprzak P, Stroszczynski C, Wohlgemuth WA. The Influence of Preoperative Aneurysmal Thrombus Quantity and Distribution on the Development of Type II Endoleaks with Aneurysm Sac Enlargement After EVAR of AAA. Cardiovasc Intervent Radiol 2016; 39:1099-109. [PMID: 27307180 DOI: 10.1007/s00270-016-1386-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 05/23/2016] [Indexed: 10/21/2022]
Abstract
PURPOSE To determine the influence of preoperative aneurysmal thrombus quantity and distribution on the development of type II endoleak with aneurysm sac enlargement after endovascular aneurysm repair (EVAR). MATERIALS AND METHODS We retrospectively analyzed the pre- and postoperatively performed CT scans of 118 patients who had follow-up imaging for at least 1 year after EVAR available. We assessed preoperative thrombus perimeter (T Peri), diameter (T Dia), cross-sectional area (T CSA), and volume (T Vol). The preoperative thrombus distribution was classified into no thrombus, semilunar-shaped (anterior, right side, left side, posterior) thrombus, and circumferential type thrombus. The number of preoperative patent aortic side branches (ASB) was identified. Endpoint was type II endoleak with aneurysm volume (A Vol) increase of ≥5 % during follow-up. RESULTS During follow-up (2 years, range 1-9 years), 17 patients with type II endoleak had significant A Vol increase. Less preoperative T Peri, T Dia, T CSA, and T Vol were associated with A Vol increase. A circumferential thrombus distribution significantly protected against aneurysm enlargement (p = 0.028). The variables with the strongest significance for A Vol increase were preoperative T Vol/A Vol ratio (OR 0.95; p = 0.037) and number of patent ASB (OR 3.52; p < 0.001). CONCLUSION A low preoperative T Vol/A Vol ratio and a high number of patent ASB were associated with aneurysm sac enlargement after EVAR.
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Affiliation(s)
- R Müller-Wille
- Department of Radiology, University Medical Center Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany.
| | - O Güntner
- Dr. Neumaier MVZ GmBH Castra Regina Center, Bahnhofstraße 24, 93047, Regensburg, Germany
| | - F Zeman
- Center for Clinical Studies, University Medical Center Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
| | - M Dollinger
- Department of Diagnostic and Interventional Radiology, University Hospital of Würzburg, Oberdürrbacher Str. 6, 97080, Würzburg, Germany
| | - C Hälg
- Department of Radiology and Nuclear Medicine, Kantonsspital Schaffhausen, Geissbergstrasse 81, 8208, Schaffhausen, Switzerland
| | - L P Beyer
- Department of Radiology, University Medical Center Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
| | - K Pfister
- Department of Vascular Surgery, University Medical Center Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
| | - P Kasprzak
- Department of Vascular Surgery, University Medical Center Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
| | - C Stroszczynski
- Department of Radiology, University Medical Center Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
| | - W A Wohlgemuth
- Department of Radiology, University Medical Center Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
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Oliveira‐Pinto J, Sampaio S, Rocha‐Neves J, Castro‐Ferreira R, Costa‐Lima J, Leite‐Moreira A, Mansilha A, Teixeira JF. Fatores de risco para crescimento do saco aneurismático pós‐endovascular aneurysm repair: revisão de literatura. ANGIOLOGIA E CIRURGIA VASCULAR 2015. [DOI: 10.1016/j.ancv.2015.07.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Hiraoka A, Chikazawa G, Ishida A, Miyake K, Totsugawa T, Tamura K, Sakaguchi T, Yoshitaka H. Impact of Age and Intraluminal Thrombus Volume on Abdominal Aortic Aneurysm Sac Enlargement after Endovascular Repair. Ann Vasc Surg 2015; 29:1440-6. [PMID: 26169457 DOI: 10.1016/j.avsg.2015.05.022] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Revised: 03/19/2015] [Accepted: 05/27/2015] [Indexed: 11/17/2022]
Abstract
BACKGROUND Abdominal aneurysmal sac enlargement after endovascular aortic repair (EVAR) is a critical issue. However, the predictors have not yet been fully determined. Although unrecognized, intraluminal thrombus volume (ITV) is an important index. Therefore, we retrospectively evaluated the correlation among preoperative ITV, residual type II endoleak, and sac enlargement after EVAR, based on the long-term follow-up. METHODS Between 2006 and 2011, 151 consecutive patients underwent EVAR at a single cardiovascular institute. Emergency surgery was performed on 7 patients (4.7%). Of 148 patients excluding 3 patients with residual type I endoleak, sac enlargement (≥5 mm progression) after EVAR was observed in 24 patients (16.2%) and 8 patients required reintervention. The mean follow-up period was 2.4 ± 1.4 years. The outer volume and enhanced luminal volume were calculated from enhanced 1-mm slice computed tomography, and the difference was defined as ITV. RESULTS Age (hazard ratio [HR] 1.12, 95% confidence interval [CI] 1.04-1.20, P = 0.0007), outer volume (HR 1.04, 95% CI 1.01-1.07, P = 0.0118), percentage of ITV (HR 0.90, 95% CI 0.84-0.96, P = .0027), and type II endoleak (HR 10.15, 95% CI 3.55-31.10, P < 0.0001) were isolated as predictors of sac enlargement by multivariate analysis. Also, patent inferior mesenteric artery (odds ratio [OR] 4.45, 95% CI 1.38-20.07, P = 0.0105) and percentage of ITV < 30.1% (OR 3.52, 95% CI 1.32-10.30, P = 0.0112) were detected as independent risk factors for residual type II endoleaks. Additionally, in patients without endoleak, patient age (≥83 years) was an independent risk factor for sac enlargement after EVAR (P = 0.0056). CONCLUSION Age and ITV percentage had significantly great impact on sac enlargement and type II endoleak after EVAR.
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Affiliation(s)
- Arudo Hiraoka
- Department of Cardiovascular Surgery, The Sakakibara Heart Institute of Okayama, Okayama, Japan.
| | - Genta Chikazawa
- Department of Cardiovascular Surgery, The Sakakibara Heart Institute of Okayama, Okayama, Japan
| | - Atsuhisa Ishida
- Department of Cardiovascular Surgery, The Sakakibara Heart Institute of Okayama, Okayama, Japan
| | - Koichi Miyake
- Department of Cardiovascular Surgery, The Sakakibara Heart Institute of Okayama, Okayama, Japan
| | - Toshinori Totsugawa
- Department of Cardiovascular Surgery, The Sakakibara Heart Institute of Okayama, Okayama, Japan
| | - Kentaro Tamura
- Department of Cardiovascular Surgery, The Sakakibara Heart Institute of Okayama, Okayama, Japan
| | - Taichi Sakaguchi
- Department of Cardiovascular Surgery, The Sakakibara Heart Institute of Okayama, Okayama, Japan
| | - Hidenori Yoshitaka
- Department of Cardiovascular Surgery, The Sakakibara Heart Institute of Okayama, Okayama, Japan
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The American Association for the Surgery of Trauma PROspective Observational Vascular Injury Treatment (PROOVIT) registry. J Trauma Acute Care Surg 2015; 78:215-22; discussion 222-3. [DOI: 10.1097/ta.0000000000000520] [Citation(s) in RCA: 95] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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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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