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Vranic JE, Dmytriw AA, Berglar IK, Alotaibi NM, Cancelliere NM, Stapleton CJ, Rabinov JD, Harker P, Gupta R, Bernstock JD, Koch MJ, Raymond SB, Mascitelli JR, Patterson TT, Seinfeld J, White A, Case D, Roark C, Gandhi CD, Al-Mufti F, Cooper J, Matouk C, Sujijantarat N, Devia DA, Ocampo-Navia MI, Villamizar-Torres DE, Puentes JC, Salem MM, Baig A, El Namaani K, Kühn AL, Pukenas B, Jankowitz BT, Burkhardt JK, Siddiqui A, Jabbour P, Singh J, Puri AS, Regenhardt RW, Mendes Pereira V, Patel AB. The Impact of Preprocedural Platelet Function Testing on Periprocedural Complication Rates Associated With Pipeline Flow Diversion: An International Multicenter Study. Neurosurgery 2024; 95:179-185. [PMID: 38634693 DOI: 10.1227/neu.0000000000002956] [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: 08/27/2023] [Accepted: 02/20/2024] [Indexed: 04/19/2024] Open
Abstract
BACKGROUND AND OBJECTIVES Dual antiplatelet therapy (DAPT) is necessary to minimize the risk of periprocedural thromboembolic complications associated with aneurysm embolization using pipeline embolization device (PED). We aimed to assess the impact of platelet function testing (PFT) on reducing periprocedural thromboembolic complications associated with PED flow diversion in patients receiving aspirin and clopidogrel. METHODS Patients with unruptured intracranial aneurysms requiring PED flow diversion were identified from 13 centers for retrospective evaluation. Clinical variables including the results of PFT before treatment, periprocedural DAPT regimen, and intracranial complications occurring within 72 h of embolization were identified. Complication rates were compared between PFT and non-PFT groups. Differences between groups were tested for statistical significance using the Wilcoxon rank sum, Fisher exact, or χ 2 tests. A P -value <.05 was statistically significant. RESULTS 580 patients underwent PED embolization with 262 patients dichotomized to the PFT group and 318 patients to the non-PFT group. 13.7% of PFT group patients were clopidogrel nonresponders requiring changes in their pre-embolization DAPT regimen. Five percentage of PFT group [2.8%, 8.5%] patients experienced thromboembolic complications vs 1.6% of patients in the non-PFT group [0.6%, 3.8%] ( P = .019). Two (15.4%) PFT group patients with thromboembolic complications experienced permanent neurological disability vs 4 (80%) non-PFT group patients. 3.7% of PFT group patients [1.5%, 8.2%] and 3.5% [1.8%, 6.3%] of non-PFT group patients experienced hemorrhagic intracranial complications ( P > .9). CONCLUSION Preprocedural PFT before PED treatment of intracranial aneurysms in patients premedicated with an aspirin and clopidogrel DAPT regimen may not be necessary to significantly reduce the risk of procedure-related intracranial complications.
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Affiliation(s)
- Justin E Vranic
- Neuroendovascular Program, Departments of Radiology, Neurosurgery and Neurology, Massachusetts General Hospital, Harvard Medical School, BostonMassachusetts , USA
| | - Adam A Dmytriw
- Neuroendovascular Program, Departments of Radiology, Neurosurgery and Neurology, Massachusetts General Hospital, Harvard Medical School, BostonMassachusetts , USA
- Neurovascular Centre, Departments of Medical Imaging & Neurosurgery, St. Michael's Hospital, University of Toronto, Toronto , Ontario , USA
| | - Inka K Berglar
- Neuroendovascular Program, Departments of Radiology, Neurosurgery and Neurology, Massachusetts General Hospital, Harvard Medical School, BostonMassachusetts , USA
| | - Naif M Alotaibi
- Department of Neurosurgery, National Neuroscience Institute, King Fahad Medical City, Riyadh , Saudi Arabia
| | - Nicole M Cancelliere
- Neurovascular Centre, Departments of Medical Imaging & Neurosurgery, St. Michael's Hospital, University of Toronto, Toronto , Ontario , USA
| | - Christopher J Stapleton
- Neuroendovascular Program, Departments of Radiology, Neurosurgery and Neurology, Massachusetts General Hospital, Harvard Medical School, BostonMassachusetts , USA
| | - James D Rabinov
- Neuroendovascular Program, Departments of Radiology, Neurosurgery and Neurology, Massachusetts General Hospital, Harvard Medical School, BostonMassachusetts , USA
| | - Pablo Harker
- Departments of Neurology and Rehabilitation Medicine, University of Cincinnati, Cincinnati , Ohio , USA
| | - Rajiv Gupta
- Neuroendovascular Program, Departments of Radiology, Neurosurgery and Neurology, Massachusetts General Hospital, Harvard Medical School, BostonMassachusetts , USA
| | - Joshua D Bernstock
- Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston , Massachusetts , USA
| | - Matthew J Koch
- Department of Neurosurgery, University of Florida, Gainesville , Florida , USA
| | - Scott B Raymond
- Department of Radiology, University of Vermont Medical Center, Burlington , Vermont , USA
| | - Justin R Mascitelli
- Department of Neurosurgery, University of Texas Health Science Center at San Antonio, Long School of Medicine, San Antonio , Texas , USA
| | - T Tyler Patterson
- Department of Neurosurgery, University of Texas Health Science Center at San Antonio, Long School of Medicine, San Antonio , Texas , USA
| | - Joshua Seinfeld
- Department of Neurosurgery, University of Colorado, Denver , Colorado , USA
| | - Andrew White
- Department of Neurosurgery, University of Colorado, Denver , Colorado , USA
| | - David Case
- Department of Neurosurgery, University of Colorado, Denver , Colorado , USA
| | - Christopher Roark
- Department of Neurosurgery, University of Colorado, Denver , Colorado , USA
| | - Chirag D Gandhi
- Departments of Neurosurgery and Neurology, Westchester Medical Center, Valhalla , New York , USA
| | - Fawaz Al-Mufti
- Departments of Neurosurgery and Neurology, Westchester Medical Center, Valhalla , New York , USA
| | - Jared Cooper
- Departments of Neurosurgery and Neurology, Westchester Medical Center, Valhalla , New York , USA
| | - Charles Matouk
- Department of Neurosurgery, Yale School of Medicine, New Haven , Connecticut , USA
| | | | - Diego A Devia
- Departments of Radiology & Neurosurgery, Hospital Universitario San Ignacio, Bogotá , Colombia
| | - Maria I Ocampo-Navia
- Departments of Radiology & Neurosurgery, Hospital Universitario San Ignacio, Bogotá , Colombia
| | | | - Juan C Puentes
- Departments of Radiology & Neurosurgery, Hospital Universitario San Ignacio, Bogotá , Colombia
| | - Mohamed M Salem
- Department of Radiology & Neurosurgery, University of Pennsylvania School of Medicine, Pennsylvania , Pennsylvania , USA
| | - Ammad Baig
- Department of Neurosurgery, State University of New York at Buffalo, Buffalo , New York , USA
| | - Kareem El Namaani
- Department of Neurosurgery, Thomas Jefferson University, Philadelphia , Pennsylvania , USA
| | - Anna Luisa Kühn
- Department of Neurointerventional Radiology, UMass Memorial Hospital, Worcester , Massachusetts , USA
| | - Bryan Pukenas
- Department of Radiology & Neurosurgery, University of Pennsylvania School of Medicine, Pennsylvania , Pennsylvania , USA
| | - Brian T Jankowitz
- Department of Radiology & Neurosurgery, University of Pennsylvania School of Medicine, Pennsylvania , Pennsylvania , USA
| | - Jan Karl Burkhardt
- Department of Radiology & Neurosurgery, University of Pennsylvania School of Medicine, Pennsylvania , Pennsylvania , USA
| | - Adnan Siddiqui
- Department of Neurosurgery, State University of New York at Buffalo, Buffalo , New York , USA
| | - Pascal Jabbour
- Department of Neurosurgery, Thomas Jefferson University, Philadelphia , Pennsylvania , USA
| | - Jasmeet Singh
- Department of Neurointerventional Radiology, UMass Memorial Hospital, Worcester , Massachusetts , USA
| | - Ajit S Puri
- Department of Neurointerventional Radiology, UMass Memorial Hospital, Worcester , Massachusetts , USA
| | - Robert W Regenhardt
- Neuroendovascular Program, Departments of Radiology, Neurosurgery and Neurology, Massachusetts General Hospital, Harvard Medical School, BostonMassachusetts , USA
| | - Vitor Mendes Pereira
- Neurovascular Centre, Departments of Medical Imaging & Neurosurgery, St. Michael's Hospital, University of Toronto, Toronto , Ontario , USA
| | - Aman B Patel
- Neuroendovascular Program, Departments of Radiology, Neurosurgery and Neurology, Massachusetts General Hospital, Harvard Medical School, BostonMassachusetts , USA
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2
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Hohenstatt S, Saatci I, Jesser J, Çekirge HS, Koçer N, Islak C, Lücking H, DuPlessis J, Rautio R, Bendszus M, Vollherbst DF, Möhlenbruch MA. Prasugrel Single Antiplatelet Therapy versus Aspirin and Clopidogrel Dual Antiplatelet Therapy for Flow Diverter Treatment for Cerebral Aneurysms: A Retrospective Multicenter Study. AJNR Am J Neuroradiol 2024; 45:592-598. [PMID: 38453414 PMCID: PMC11288545 DOI: 10.3174/ajnr.a8163] [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: 10/27/2023] [Accepted: 01/07/2024] [Indexed: 03/09/2024]
Abstract
BACKGROUND AND PURPOSE The optimal antiplatelet regimen after flow diverter treatment of cerebral aneurysms is still a matter of debate. A single antiplatelet therapy might be advantageous in determined clinical scenarios. This study evaluated the efficacy and safety of prasugrel single antiplatelet therapy versus aspirin and clopidogrel dual antiplatelet therapy. MATERIALS AND METHODS We performed a post hoc analysis of 4 retrospective multicenter studies including ruptured and unruptured aneurysms treated with flow diversion using either prasugrel single antiplatelet therapy or dual antiplatelet therapy. Primary end points were the occurrence of any kind of procedure- or device-related thromboembolic complications and complete aneurysm occlusion at the latest radiologic follow-up (mean, 18 months). Dichotomized comparisons of outcomes were performed between single antiplatelet therapy and dual antiplatelet therapy. Additionally, the influence of various patient- and aneurysm-related variables on the occurrence of thromboembolic complications was investigated using multivariable backward logistic regression. RESULTS A total of 222 patients with 251 aneurysms were included, 90 (40.5%) in the single antiplatelet therapy and 132 (59.5%) in the dual antiplatelet therapy group. The primary outcome-procedure- or device-related thromboembolic complications-occurred in 6 patients (6.6%) of the single antiplatelet therapy and in 12 patients (9.0%) of the dual antiplatelet therapy group (P = .62; OR, 0.712; 95% CI, 0.260-1.930). The primary treatment efficacy end point was reached in 82 patients (80.4%) of the single antiplatelet therapy and in 115 patients (78.2%) of the dual antiplatelet therapy group (P = .752; OR, 1.141; 95% CI, 0.599-2.101). Logistic regression showed that non-surface-modified flow diverters (P = .014) and fusiform aneurysm morphology (P = .004) significantly increased the probability of thromboembolic complications. CONCLUSIONS Prasugrel single antiplatelet therapy after flow diverter treatment may be as safe and effective as dual antiplatelet therapy and could, therefore, be a valid alternative in selected patients. Further prospective comparative studies are required to validate our findings.
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Affiliation(s)
- Sophia Hohenstatt
- From the Department of Neuroradiology (S.H., J.J., M.B., D.F.V., M.A.M.), Heidelberg University Hospital, Heidelberg, Germany
| | - Işıl Saatci
- Interventional Neuroradiology Section (I.S., H.S.C.), Koru and Bayindir Private Hospitals, Ankara, Turkey
| | - Jessica Jesser
- From the Department of Neuroradiology (S.H., J.J., M.B., D.F.V., M.A.M.), Heidelberg University Hospital, Heidelberg, Germany
| | - H Saruhan Çekirge
- Interventional Neuroradiology Section (I.S., H.S.C.), Koru and Bayindir Private Hospitals, Ankara, Turkey
| | - Naci Koçer
- Department of Neuroradiology (N.K., CI.), Cerrahpasa Medical Faculty, Istanbul, Turkey
| | - Civan Islak
- Department of Neuroradiology (N.K., CI.), Cerrahpasa Medical Faculty, Istanbul, Turkey
| | - Hannes Lücking
- Department of Neuroradiology (H.L.), University of Erlangen-Nuremberg, Erlangen, Germany
| | - Johannes DuPlessis
- Department of Clinical Neurosciences (J.D.), Royal Infirmary of Edinburgh, Edinburgh, United Kingdom
| | - Riitta Rautio
- Department of Interventional Radiology (R.R.), Turku University Hospital, Turku, Finland
| | - Martin Bendszus
- From the Department of Neuroradiology (S.H., J.J., M.B., D.F.V., M.A.M.), Heidelberg University Hospital, Heidelberg, Germany
| | - Dominik F Vollherbst
- From the Department of Neuroradiology (S.H., J.J., M.B., D.F.V., M.A.M.), Heidelberg University Hospital, Heidelberg, Germany
| | - Markus A Möhlenbruch
- From the Department of Neuroradiology (S.H., J.J., M.B., D.F.V., M.A.M.), Heidelberg University Hospital, Heidelberg, Germany
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3
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Flynn LM, Mohamed E, Dobbs N, Nania A, Du Plessis J, Keston PM, Downer JJ. Safety of dual antiplatelet therapy using aspirin and low-dose Prasugrel with platelet reactivity testing in flow diverter treatment of intracranial aneurysms. Interv Neuroradiol 2023:15910199231217142. [PMID: 38031444 DOI: 10.1177/15910199231217142] [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] Open
Abstract
BACKGROUND Dual antiplatelet therapy (DAPT) is standard care for intracranial stenting to prevent thrombotic complications. Clopidogrel resistance has resulted in patients receiving newer P2Y12 inhibitors like Prasugrel, which may reduce thrombotic complications but could increase haemorrhagic complications. This study, utilising platelet reactivity testing, compared thrombotic and haemorrhagic complications associated with Clopidogrel or 20 mg Prasugrel loading in patients treated with flow diverters (FD) for intracranial aneurysms. METHODS We retrospectively analysed prospectively collected data from 225 consecutive FD procedures. All patients received aspirin. 147 cases received Clopidogrel and 82 received Prasugrel. All patients had VerifyNow testing before the procedure. RESULTS P2Y12 non-responders were significantly more likely to have thrombotic complications than responders and hyper-responders (7% vs. 2%, p = 0.01). Low-dose Prasugrel resulted in a significantly lower rate of non-responders when compared with Clopidogrel (7% vs. 25%, p < 0.01). We found no statistically significant difference in rates of haemorrhage between the Clopidogrel and Prasugrel groups (2.4% vs. 3.9%, p = 0.47). There were 12 complications (≤7 days) in the Clopidogrel group versus 6 in the Prasugrel group (9% vs. 7.8%, respectively, p = 0.91) and a non-significant reduction in thrombotic complications in the Prasugrel group (5.2% vs. 3.9%, p = 0.88). No significant difference was shown in long-term complications between the groups (p = 0.33). CONCLUSION These results support the use of platelet reactivity testing and the safety of low-dose Prasugrel for FD treatment of intracranial aneurysms.
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Affiliation(s)
- Liam M Flynn
- Department of Clinical Neurosciences, Edinburgh, UK
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4
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Vranic JE, Harker P, Stapleton CJ, Regenhardt RW, Dmytriw AA, Doron OM, Alotaibi NM, Leslie-Mazwi TM, Gupta R, Berglar IK, Tan CO, Koch MJ, Raymond SB, Mascitelli JR, Patterson TT, Seinfeld J, White A, Case D, Roark C, Gandhi CD, Al-Mufti F, Cooper J, Matouk C, Sujijantarat N, Devia DA, Ocampo-Navia MI, Villamizar-Torres DE, Puentes JC, Patel AB. The Impact of Dual Antiplatelet Therapy Duration on Unruptured Aneurysm Occlusion After Flow Diversion: A Multicenter Study. J Comput Assist Tomogr 2023; 47:753-758. [PMID: 37707405 DOI: 10.1097/rct.0000000000001457] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/04/2023]
Abstract
OBJECTIVE Endoluminal flow diversion reduces blood flow into intracranial aneurysms, promoting thrombosis. Postprocedural dual antiplatelet therapy (DAPT) is necessary for the prevention of thromboembolic complications. The purpose of this study is to therefore assess the impact that the type and duration of DAPT has on aneurysm occlusion rates and iatrogenic complications after flow diversion. METHODS A retrospective review of a multicenter aneurysm database was performed from 2012 to 2020 to identify unruptured intracranial aneurysms treated with single device flow diversion and ≥12-month follow-up. Clinical and radiologic data were analyzed with aneurysm occlusion as a function of DAPT duration serving as a primary outcome measure. RESULTS Two hundred five patients underwent flow diversion with a single pipeline embolization device with 12.7% of treated aneurysms remaining nonoccluded during the study period. There were no significant differences in aneurysm morphology or type of DAPT used between occluded and nonoccluded groups. Nonoccluded aneurysms received a longer mean duration of DAPT (9.4 vs 7.1 months, P = 0.016) with a significant effect of DAPT duration on the observed aneurysm occlusion rate (F(2, 202) = 4.2, P = 0.016). There was no significant difference in the rate of complications, including delayed ischemic strokes, observed between patients receiving short (≤6 months) and prolonged duration (>6 months) DAPT (7.9% vs 9.3%, P = 0.76). CONCLUSIONS After flow diversion, an abbreviated duration of DAPT lasting 6 months may be most appropriate before transitioning to low-dose aspirin monotherapy to promote timely aneurysm occlusion while minimizing thromboembolic complications.
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Affiliation(s)
| | - Pablo Harker
- Department of Neurology, University of Cincinnati Medical Center, Cincinnati, OH
| | - Christopher J Stapleton
- Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Robert W Regenhardt
- Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | | | - Omer M Doron
- Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
| | - Naif M Alotaibi
- Department of Neurosurgery, National Neuroscience Institute, King Fahad Medical City, Riyadh, Saudi Arabia
| | | | | | | | | | - Matthew J Koch
- Department of Neurosurgery, University of Florida, Gainesville, FL
| | - Scott B Raymond
- Department of Radiology, University of Vermont Medical Center, Burlington, VT
| | - Justin R Mascitelli
- Department of Neurosurgery, University of Texas Health Science Center at San Antonio, San Antonio, TX
| | - T Tyler Patterson
- Department of Neurosurgery, University of Texas Health Science Center at San Antonio, San Antonio, TX
| | - Joshua Seinfeld
- Department of Neurosurgery, University of Colorado, Denver, CO
| | - Andrew White
- Department of Neurosurgery, University of Colorado, Denver, CO
| | - David Case
- Department of Neurosurgery, University of Colorado, Denver, CO
| | | | | | | | | | - Charles Matouk
- Department of Neurosurgery, Yale School of Medicine, New Haven, CT
| | | | - Diego A Devia
- Department of Neurosurgery, Hospital Universitario San Ignacio, Pontificia Universidad Javeriana School of Medicine
| | - Maria I Ocampo-Navia
- Department of Neurosurgery, Hospital Universitario San Ignacio, Pontificia Universidad Javeriana School of Medicine
| | - Daniel E Villamizar-Torres
- Department of Neurosurgery, Hospital Universitario San Ignacio, Pontificia Universidad Javeriana School of Medicine
| | | | - Aman B Patel
- Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Boston, MA
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5
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Nariai Y, Takigawa T, Hyodo A, Suzuki K. Thromboembolic Events Detected by Diffusion-Weighted Magnetic Resonance Imaging after Flow Diverter Treatment: The Impact of Procedure Time. World Neurosurg 2022; 167:e1241-e1252. [PMID: 36089273 DOI: 10.1016/j.wneu.2022.09.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 09/01/2022] [Accepted: 09/02/2022] [Indexed: 10/31/2022]
Abstract
BACKGROUND Periprocedural thromboembolism is a serious complication of endovascular treatment for intracranial aneurysms. In addition to symptomatic ischemia, asymptomatic postprocedural diffusion-weighted image-positive lesions (DPLs) are considered important. However, few studies have reported significant risk factors associated with DPLs and symptomatic ischemic stroke after flow diverter (FD) treatment. This study aimed to investigate the frequency and risk factors associated with DPLs after FD treatment. METHODS Between November 2015 and December 2021, 84 patients harboring 85 untreated, unruptured intracranial aneurysms treated with FD were enrolled. RESULTS DPLs after FD treatment were confirmed in 74 patients (87.1%), among whom 69 (93.2%) were clinically asymptomatic. In the univariate analyses, age >55 years (P = 0.040), smoking (P = 0.023), preprocedural P2Y12 reaction unit value of >185 (P = 0.030), larger dome size of >9.3 mm (P = 0.013), and prolonged procedure time >80 minutes (P < 0.001) were significantly associated with postprocedural DPLs. In the multiple logistic regression model, only prolonged procedure time >80 minutes (odds ratio, 10.72; 95% confidence interval, 1.346-233.899; P = 0.023) was statistically significant. The mediator effect showed that the association between procedure time and the occurrence of DPLs was not significantly modified by any other factors, although only adjunctive coiling showed a tendency (P-value for interaction = 0.070). CONCLUSIONS Prolonged procedure time >80 minutes was the only identifiable factor related to postprocedural DPLs. Adjunctive coiling tended to mediate the effects of a prolonged procedure time on the occurrence of DPLs after FD treatment.
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Affiliation(s)
- Yasuhiko Nariai
- Department of Neurosurgery, Dokkyo Medical University Saitama Medical Center, Saitama, Japan.
| | - Tomoji Takigawa
- Department of Neurosurgery, Dokkyo Medical University Saitama Medical Center, Saitama, Japan
| | - Akio Hyodo
- Department of Neurosurgery, Dokkyo Medical University Saitama Medical Center, Saitama, Japan
| | - Kensuke Suzuki
- Department of Neurosurgery, Dokkyo Medical University Saitama Medical Center, Saitama, Japan
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6
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Vranic JE, Harker P, Stapleton CJ, Regenhardt RW, Dmytriw AA, Alotaibi NM, Gupta R, Leslie-Mazwi TM, Koch MJ, Raymond SB, Mascitelli JR, Patterson TT, Seinfeld J, White A, Case D, Roark C, Gandhi CD, Al-Mufti F, Cooper J, Patel AB. Determinants of intracranial aneurysm retreatment following embolization with a single flow-diverting stent. Neuroradiol J 2021; 35:461-467. [PMID: 34747246 PMCID: PMC9437496 DOI: 10.1177/19714009211049086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
PURPOSE Flow diverting stents have revolutionized the treatment of intracranial aneurysms through endoluminal reconstruction of the parent vessel. Despite this, certain aneurysms require retreatment. The purpose of this study was to identify clinical and radiologic determinants of aneurysm retreatment following flow diversion. METHODS A multicenter flow diversion database was evaluated to identify patients presenting with an unruptured, previously untreated aneurysm with a minimum of 12 months' clinical and angiographic follow-up. Univariate and multivariate logistic regression modeling was performed to identify determinants of retreatment. RESULTS We identified 189 aneurysms treated in 189 patients with a single flow-diverting stent. Mean age was 54 years, and 89% were female. Complete occlusion was achieved in 70.3% and 83.6% of patients at six and 12 months, respectively. Aneurysm retreatment with additional flow-diverting stents occurred in 5.8% of cases. Univariate analysis revealed that dome diameter ≥10 mm (p = 0.012), pre-clinoid internal carotid artery location (p = 0.012), distal > proximal parent vessel diameter (p = 0.042), and later dual antiplatelet therapy (DAPT) discontinuation (p < 0.001) were predictive of retreatment. Multivariate analysis identified discontinuation of DAPT >12 months (p = 0.003) as a strong determinant of retreatment with dome diameter ≥10 mm trending toward statistical significance (p = 0.064). Large aneurysm neck diameter, presence of aneurysm branch vessels, patient age, smoking history, and hypertension were not determinant of retreatment on multivariate analysis. CONCLUSIONS Prolonged DAPT is the most important determinant of aneurysm retreatment following single-device flow diversion. Abbreviating DAPT duration to only six months should be a consideration in this population, especially for patients with a large aneurysm dome diameter.
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Affiliation(s)
- Justin E Vranic
- Department of Radiology, 2348Massachusetts General Hospital, Massachusetts General Hospital, Harvard Medical School, USA.,Department of Neurosurgery, 2348Massachusetts General Hospital, Massachusetts General Hospital, Harvard Medical School, USA
| | - Pablo Harker
- Department of Neurosurgery, 2348Massachusetts General Hospital, Massachusetts General Hospital, Harvard Medical School, USA
| | - Christopher J Stapleton
- Department of Neurosurgery, 2348Massachusetts General Hospital, Massachusetts General Hospital, Harvard Medical School, USA
| | - Robert W Regenhardt
- Department of Neurosurgery, 2348Massachusetts General Hospital, Massachusetts General Hospital, Harvard Medical School, USA
| | - Adam A Dmytriw
- Department of Neurosurgery, 2348Massachusetts General Hospital, Massachusetts General Hospital, Harvard Medical School, USA
| | - Naif M Alotaibi
- Department of Neurosurgery, 2348Massachusetts General Hospital, Massachusetts General Hospital, Harvard Medical School, USA
| | - Rajiv Gupta
- Department of Radiology, 2348Massachusetts General Hospital, Massachusetts General Hospital, Harvard Medical School, USA
| | - Thabele M Leslie-Mazwi
- Department of Neurosurgery, 2348Massachusetts General Hospital, Massachusetts General Hospital, Harvard Medical School, USA.,Department of Neurology, Massachusetts General Hospital, Harvard Medical School, USA
| | - Matthew J Koch
- Department of Neurosurgery, 2348Massachusetts General Hospital, Massachusetts General Hospital, Harvard Medical School, USA
| | - Scott B Raymond
- Department of Radiology, 2090University of Vermont Medical Center, University of Vermont Medical Center, USA
| | - Justin R Mascitelli
- Department of Neurosurgery, University of Texas Health Science Center at San Antonio, Long School of Medicine, USA
| | - T Tyler Patterson
- Department of Neurosurgery, University of Texas Health Science Center at San Antonio, Long School of Medicine, USA
| | | | - Andrew White
- Department of Neurosurgery, University of Colorado, USA
| | - David Case
- Department of Neurosurgery, University of Colorado, USA
| | | | - Chirag D Gandhi
- Department of Neurosurgery, 8138Westchester Medical Center, 8138Westchester Medical Center, USA
| | - Fawaz Al-Mufti
- Department of Neurosurgery, 8138Westchester Medical Center, 8138Westchester Medical Center, USA.,Department of Neurology, 8138Westchester Medical Center, 8138Westchester Medical Center, USA
| | - Jared Cooper
- Department of Neurosurgery, 8138Westchester Medical Center, 8138Westchester Medical Center, USA
| | - Aman B Patel
- Department of Neurosurgery, 2348Massachusetts General Hospital, Massachusetts General Hospital, Harvard Medical School, USA
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7
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Borchert RJ, Simonato D, R Hickman C, Fuschi M, Thibault L, Henkes H, Fiorella D, Tan BY, Yeo LL, D Makalanda HL, Wong K, Bhogal P. P2Y12 inhibitors for the neurointerventionalist. Interv Neuroradiol 2021; 28:92-103. [PMID: 33947251 PMCID: PMC8905084 DOI: 10.1177/15910199211015042] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The use of antiplatelets is widespread in clinical practice. However, for neurointerventional procedures, protocols for antiplatelet use are scarce and practice varies between individuals and institutions. This is further complicated by the quantity of antiplatelet agents which differ in route of administration, dosage, onset of action, efficacy and ischemic and hemorrhagic complications. Clarifying the individual characteristics for each antiplatelet agent, and their associated risks, will increasingly become relevant as the practice of mechanical thrombectomy, stenting, coiling and flow diversion procedures grows. The aim of this review is to summarize the existing literature for the use of P2Y12 inhibitors in neurointerventional procedures, examine the quality of the evidence, and highlight areas in need of further research.
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Affiliation(s)
- Robin J Borchert
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, UK
| | - Davide Simonato
- Department of Neuroradiology, Oxford University Hospital NHS Foundation Trust, Oxford, UK.,Institute of Radiology, University of Padova, Padova, Italy
| | - Charlotte R Hickman
- Addenbrooke's Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Maurizio Fuschi
- Department of Neuroradiology, Oxford University Hospital NHS Foundation Trust, Oxford, UK
| | | | - Hans Henkes
- Clinic for Neuroradiology, Klinikum Stuttgart, Stuttgart, Germany
| | - David Fiorella
- Clinic for Neuroradiology, Klinikum Stuttgart, Stuttgart, Germany
| | - Benjamin Yq Tan
- Clinic for Neuroradiology, Klinikum Stuttgart, Stuttgart, Germany
| | - Leonard Ll Yeo
- Clinic for Neuroradiology, Klinikum Stuttgart, Stuttgart, Germany
| | | | - Ken Wong
- Royal London Hospital, London, UK
| | - Pervinder Bhogal
- Clinic for Neuroradiology, Klinikum Stuttgart, Stuttgart, Germany
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Pearce S, Maingard JT, Kuan Kok H, Barras CD, Russell JH, Hirsch JA, Chandra RV, Jhamb A, Thijs V, Brooks M, Asadi H. Antiplatelet Drugs for Neurointerventions: Part 2 Clinical Applications. Clin Neuroradiol 2021; 31:545-558. [PMID: 33646319 DOI: 10.1007/s00062-021-00997-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Accepted: 01/15/2021] [Indexed: 02/06/2023]
Abstract
Endovascular techniques have expanded to include balloon and stent-assistance, flow diversion and individualized endovascular occlusion devices, to widen the treatment spectrum for more complex aneurysm morphologies. While usually well-tolerated by patients, endovascular treatment of intracranial aneurysms carries the risk of complications, with procedure-related ischemic complications being the most common. Several antiplatelet agents have been studied in a neurointerventional setting for both prophylaxis and in the setting of intraprocedural thrombotic complications. Knowledge of these antiplatelet agents, evidence for their use and common dosages is important for the practicing neurointerventionist to ensure the proper application of these agents.Part one of this two-part review focused on basic platelet physiology, pharmacology of common antiplatelet medications and future directions and therapies. Part two focuses on clinical applications and evidence based therapeutic regimens.
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Affiliation(s)
- Samuel Pearce
- Department of Radiology, Western Health, 160 Gordon St, 3011, Footscray, Victoria, Australia. .,Interventional Neuroradiology Unit, Monash Imaging, Monash Health, Melbourne, Victoria, Australia.
| | - Julian T Maingard
- Interventional Neuroradiology Unit, Monash Imaging, Monash Health, Melbourne, Victoria, Australia.,School of Medicine, Faculty of Health, Deakin University, Waurn Ponds, Victoria, Australia
| | - Hong Kuan Kok
- School of Medicine, Faculty of Health, Deakin University, Waurn Ponds, Victoria, Australia.,Interventional Radiology Service, Northern Health Radiology, Melbourne, Victoria, Australia
| | - Christen D Barras
- South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia.,School of Medicine, The University of Adelaide, Adelaide, South Australia, Australia
| | - Jeremy H Russell
- Department of Neurosurgery, Austin Health, Melbourne, Victoria, Australia
| | - Joshua A Hirsch
- Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Ronil V Chandra
- Interventional Neuroradiology Unit, Monash Imaging, Monash Health, Melbourne, Victoria, Australia.,Department of Imaging, Monash University, Melbourne, Victoria, Australia
| | - Ash Jhamb
- Interventional Neuroradiology, St Vincent's Hospital, Melbourne, Victoria, Australia
| | - Vincent Thijs
- Stroke Division, Florey Institute of Neuroscience and Mental Health, Melbourne, Victoria, Australia.,School of Medicine, University of Melbourne, Melbourne, Victoria, Australia.,Department of Neurology, Austin Health, Melbourne, Victoria, Australia
| | - Mark Brooks
- School of Medicine, Faculty of Health, Deakin University, Waurn Ponds, Victoria, Australia.,Stroke Division, Florey Institute of Neuroscience and Mental Health, Melbourne, Victoria, Australia.,School of Medicine, University of Melbourne, Melbourne, Victoria, Australia.,Interventional Neuroradiology service, Radiology Department, Austin Health, Melbourne, Victoria, Australia
| | - Hamed Asadi
- Interventional Neuroradiology Unit, Monash Imaging, Monash Health, Melbourne, Victoria, Australia.,School of Medicine, Faculty of Health, Deakin University, Waurn Ponds, Victoria, Australia.,Stroke Division, Florey Institute of Neuroscience and Mental Health, Melbourne, Victoria, Australia.,School of Medicine, University of Melbourne, Melbourne, Victoria, Australia.,Interventional Neuroradiology service, Radiology Department, Austin Health, Melbourne, Victoria, Australia
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9
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Higashiguchi S, Sadato A, Nakahara I, Matsumoto S, Hayakawa M, Adachi K, Hasebe A, Suyama Y, Omi T, Yamashiro K, Wakako A, Ishihara T, Kawazoe Y, Kumai T, Tanabe J, Suyama K, Watanabe S, Suzuki T, Hirose Y. Reduction of thromboembolic complications during the endovascular treatment of unruptured aneurysms by employing a tailored dual antiplatelet regimen using aspirin and prasugrel. J Neurointerv Surg 2021; 13:1044-1048. [PMID: 33632886 PMCID: PMC8526880 DOI: 10.1136/neurintsurg-2020-016994] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 01/05/2021] [Accepted: 01/09/2021] [Indexed: 12/25/2022]
Abstract
Background Thromboembolic complications (TECs) are frequent during the endovascular treatment of unruptured aneurysms. To prevent TECs, dual antiplatelet therapy using aspirin and clopidogrel is recommended for the perioperative period. In patients with a poor response, clopidogrel is a risk factor for TECs. To prevent TECs, our study assessed the stratified use of prasugrel. Methods Patients who underwent endovascular therapy for unruptured cerebral aneurysms from April 2017 to August 2019 were enrolled in this clinical study and given premedication with aspirin and clopidogrel for 2 weeks prior to the procedure. P2Y12 reaction units (PRU) were measured using the VerifyNow assay on the day before the procedure (tailored group). In subgroups with PRU <240, the clopidogrel dose was maintained (CPG subgroup). In subgroups with PRU ≥240, clopidogrel was changed to prasugrel (PSG subgroup). We compared the occurrence of TECs with retrospective consecutive cases from January 2015 to March 2017 without PRU assessments (non-tailored group). The frequency of TECs within 30 days was assessed as the primary endpoint. Results The tailored and non-tailored groups comprised 167 and 50 patients, respectively. TECs occurred in 11 (6.6%) and 8 (16%) patients in the tailored and non-tailored groups (P=0.048), respectively. The HR for TECs was significantly reduced in the tailored group (HR 0.3, 95% CI 0.11 to 0.81); P=0.017) compared with the non-tailored group. Conclusion The results suggest that tailored dual antiplatelet therapy medication with PRU significantly reduces the frequency of TECs without increasing hemorrhagic complications.
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Affiliation(s)
- Saeko Higashiguchi
- Department of Neurosurgery, Fujita Health University, Toyoake, Aichi, Japan
| | - Akiyo Sadato
- Department of Neurosurgery, Fujita Health University, Toyoake, Aichi, Japan
| | - Ichiro Nakahara
- Department of Comprehensive Strokology, Fujita Health University, Toyoake, Aichi, Japan
| | - Shoji Matsumoto
- Department of Comprehensive Strokology, Fujita Health University, Toyoake, Aichi, Japan
| | - Motoharu Hayakawa
- Department of Neurosurgery, Fujita Health University, Toyoake, Aichi, Japan
| | - Kazuhide Adachi
- Department of Neurosurgery, Fujita Health University, Toyoake, Aichi, Japan
| | - Akiko Hasebe
- Department of Comprehensive Strokology, Fujita Health University, Toyoake, Aichi, Japan
| | - Yoshio Suyama
- Department of Comprehensive Strokology, Fujita Health University, Toyoake, Aichi, Japan
| | - Tatsuo Omi
- Department of Neurosurgery, Fujita Health University, Toyoake, Aichi, Japan
| | - Kei Yamashiro
- Department of Neurosurgery, Fujita Health University, Toyoake, Aichi, Japan
| | - Akira Wakako
- Department of Neurosurgery, Fujita Health University, Toyoake, Aichi, Japan
| | - Takuma Ishihara
- Innovative and Clinical Research Promotion Center, Gifu University Hospital, Gifu, Gifu, Japan
| | - Yushi Kawazoe
- Department of Neurosurgery, Fujita Health University, Toyoake, Aichi, Japan
| | - Tadashi Kumai
- Department of Neurosurgery, Fujita Health University, Toyoake, Aichi, Japan
| | - Jun Tanabe
- Department of Comprehensive Strokology, Fujita Health University, Toyoake, Aichi, Japan
| | - Kenichiro Suyama
- Department of Comprehensive Strokology, Fujita Health University, Toyoake, Aichi, Japan
| | - Sadayoshi Watanabe
- Department of Comprehensive Strokology, Fujita Health University, Toyoake, Aichi, Japan
| | - Takeya Suzuki
- Department of Comprehensive Strokology, Fujita Health University, Toyoake, Aichi, Japan
| | - Yuichi Hirose
- Department of Neurosurgery, Fujita Health University, Toyoake, Aichi, Japan
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10
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Niimi J, Takahashi Y, Ueda K, Tasaka K, Tsuruoka A, Nemoto F, Moriwaki T, Hatayama K, Otake M, Naito H. The Usefulness of Prasugrel as Rescue Medication in Neuroendovascular Therapy. JOURNAL OF NEUROENDOVASCULAR THERAPY 2020; 14:90-95. [PMID: 37502391 PMCID: PMC10370648 DOI: 10.5797/jnet.oa.2019-0097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 01/16/2020] [Indexed: 07/29/2023]
Abstract
Objective In neuroendovascular therapy, clopidogrel resistance and thrombosis are common problems. In such cases, we use prasugrel as rescue medication, and we clarified its usefulness. Methods We retrospectively investigated 199 consecutive cases of neuroendovascular therapy performed at our hospital from April 2016 to March 2018, and examined the safety and effectiveness of prasugrel. Results There were 14 cases of prasugrel administration: six cases of coil embolization for cerebral aneurysm, five cases of carotid artery stenting (CAS), and three other cases.The reasons for prasugrel administration were as follows: emergency stent use in four cases, intraoperative thrombosis in three cases, intra-stent thrombosis after CAS in three cases, and others in four cases. In all cases, it was used in combination with aspirin and the median duration of administration was 212 days. Regarding its safety, there was one hemorrhagic complication at the puncture site for which the involvement of prasugrel was unable to be excluded, but it was improved by conservative treatment and there was no major hemorrhage such as intracranial hemorrhage. Regarding its efficacy, in one case, the thrombus during coil embolization did not completely disappear after prasugrel administration and additional mechanical thrombolysis was required. However, no new thrombosis was observed during prasugrel administration in all 14 cases. Conclusion Prasugrel may be useful as a rescue medication in neuroendovascular therapy.
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Affiliation(s)
- Jun Niimi
- Department of Neurosurgery, Funabashi Municipal Medical Center, Funabashi, Chiba, Japan
| | - Yurika Takahashi
- Department of Pharmacy, Funabashi Municipal Medical Center, Funabashi, Chiba, Japan
| | - Kotaro Ueda
- Department of Neurosurgery, Funabashi Municipal Medical Center, Funabashi, Chiba, Japan
| | - Kenta Tasaka
- Department of Neurosurgery, Funabashi Municipal Medical Center, Funabashi, Chiba, Japan
| | - Atsushi Tsuruoka
- Department of Neurology, Funabashi Municipal Medical Center, Funabashi, Chiba, Japan
| | - Fumio Nemoto
- Department of Neurosurgery, Funabashi Municipal Medical Center, Funabashi, Chiba, Japan
| | - Takuya Moriwaki
- Department of Neurosurgery, Funabashi Municipal Medical Center, Funabashi, Chiba, Japan
| | - Kazumi Hatayama
- Department of Neurosurgery, Funabashi Municipal Medical Center, Funabashi, Chiba, Japan
| | - Mitsuhiro Otake
- Department of Pharmacy, Funabashi Municipal Medical Center, Funabashi, Chiba, Japan
| | - Hiromichi Naito
- Department of Neurosurgery, Funabashi Municipal Medical Center, Funabashi, Chiba, Japan
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