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Bae JW, Oh HS, Hong CE, Kim KM, Yoo DH, Kang HS, Cho YD. Extended monitoring of re-coiled cerebral aneurysms after initial postcoiling recanalization: Safety and durability of repeat coil embolization. J Neuroradiol 2024; 51:59-65. [PMID: 37247754 DOI: 10.1016/j.neurad.2023.05.006] [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] [Received: 05/05/2023] [Accepted: 05/26/2023] [Indexed: 05/31/2023]
Abstract
PURPOSE In the endovascular era, postcoiling recanalization of cerebral aneurysms is occurring with greater frequency. Repeat coiling is usually done to prevent rebleeding, although long-term outcomes of re-embolization have yet to be adequately investigated. The present study was undertaken to assess clinical and radiographic outcomes of re-embolization in recanalized aneurysms, focusing on procedural safety, efficacy, and durability. METHOD In this retrospective review, we examined 308 patients with 310 recurrent aneurysms. All lesions were re-coiled, once major recanalization (after initial coil embolization) was established. Medical records and radiologic data amassed during extended follow-up were then subject to review. Cox proportional hazards regression analysis was undertaken to identify risk factors for subsequent recurrence. RESULT During a lengthy follow-up (mean, 40.2 ± 33.0 months), major recanalization developed again in 87 aneurysms (28.1%). Multivariable Cox regression analysis linked re-recanalization to initial saccular neck width (p=.003) and autosomal dominant polycystic kidney disease (ADPKD; p<.001). Stent implantation (p=.038) and successful occlusion at second coiling (p=.012) were protective against later recanalization in this setting. The more recent the second embolization was performed, the lower the risk of further recurrence (p=.023). Procedure-related complications included asymptomatic thromboembolism (n = 9), transient ischemic neurologic deficits (n = 2), procedural bleeding (n = 1), and coil migration (n = 1), but there were no residual effects or deaths. CONCLUSION Repeat coil embolization is a safe therapeutic option for recanalized cerebral aneurysms. Wide-necked status and ADPKD emerged as risks for subsequent recanalization, whereas successful occlusion and stent implantation seemed to reduce the likelihood of recurrence after re-embolization procedures.
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Affiliation(s)
- Jin Woo Bae
- Department of Neurosurgery, Inha University Hospital, Incheon, Korea
| | - Han San Oh
- Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Chang-Eui Hong
- Department of Neurosurgery, Veterans Health Service Medical Center, Seoul, Korea
| | - Kang Min Kim
- Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Dong Hyun Yoo
- Department of Radiology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Hyun-Seung Kang
- Department of Neurosurgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Young Dae Cho
- Department of Radiology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea.
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Soydemir E, Gündoğmuş CA, Türeli D, Andaç Baltacıoğlu N, Bayri Y, Baltacıoğlu F. Safety and efficacy of flow diverter stents in the treatment of middle cerebral artery aneurysms: a single-center experience and follow-up data. Diagn Interv Radiol 2023; 29:350-358. [PMID: 36988000 PMCID: PMC10679704 DOI: 10.4274/dir.2022.211050] [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] [Received: 10/19/2021] [Accepted: 04/04/2022] [Indexed: 01/15/2023]
Abstract
PURPOSE This study aims to evaluate the safety and efficacy of flow diverters (FDs) in the treatment of middle cerebral artery (MCA) aneurysms and share the follow-up (F/U) results. METHODS The treatment and F/U results of 76 MCA aneurysms treated with the flow re-direction endoluminal device (FRED), FRED Jr., and pipeline embolization device (PED) FD stents were evaluated retrospectively. The aneurysm occlusion rates were compared between FDs, and the integrated and jailed branches were evaluated through follow-ups. The oversizing of the stent was compared between occluded/non-occluded aneurysms and integrated branches. RESULTS The mean F/U duration was 32 ± 6.3 months, and the mean aneurysm diameter was 4.45 mm. A total of 61 (80.3%) aneurysms were wide-necked; 73 (96.1%) were saccular; 52 (68.4%) were located at the M1 segment; and 36 (45.6%) FREDs, 23 (29.1%) FRED Jr.s, and 19 (24.1%) PEDs were used for treatment. The overall occlusion rates for the 6-, 12-, 24-, 36-, and 60-month digital subtraction angiographies were 43.8%, 63.5%, 73.3%, 85.7%, and 87.5% respectively. The last F/U occlusion rates were 67.6% for FRED, 66.7% for PED, and 60.6% for FRED Jr. (P = 0.863). An integrated branch was covered with an FD during the treatment of 63 (82.8%) aneurysms. A total of six (10%) of the integrated branches were occluded without any symptoms at the last F/U appointment. The median oversizing was 0.45 (0-1.30) for occluded aneurysms, and 0.50 (0-1.40) for non-occluded aneurysms (P = 0.323). The median oversizing was 0.70 (0.45-1.10) in occluded integrated branches and 0.50 (0-1.40) in non-occluded branches (P = 0.131). In-stent stenosis was seen in 22 (30.1%) of the stents at the 6-month F/U and in only 2 (4.7%) at the 24-month F/U. Thus, none of the patients had any neurological deficits because of the in-stent stenosis. Severe in-stent stenosis was seen in two stents. CONCLUSION MCA aneurysms tend to be complex, with integrated branches and potentially wide necks. FD stents are safe and effective in the treatment of MCA aneurysms, and the patency of the side and jailed branches is preserved in most cases. Higher occlusion and lower in-stent stenosis rates are seen with longer F/U durations.
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Affiliation(s)
- Efe Soydemir
- Department of Radiology, Marmara University Faculty of Medicine, İstanbul, Turkey
| | - Cemal Aydın Gündoğmuş
- Department of Radiology, Marmara University Faculty of Medicine, İstanbul, Turkey
- Department of Radiology, Koç University Hospital, İstanbul, Turkey
| | - Derya Türeli
- Department of Radiology, Marmara University Faculty of Medicine, İstanbul, Turkey
| | | | - Yaşar Bayri
- Department of Neurosurgery, Marmara University Faculty of Medicine, İstanbul, Turkey
| | - Feyyaz Baltacıoğlu
- Department of Radiology, Marmara University Faculty of Medicine, İstanbul, Turkey
- Department of Radiology, VKV Amerikan Hospital, İstanbul, Turkey
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Rodriguez-Calienes A, Vivanco-Suarez J, Galecio-Castillo M, Zevallos CB, Farooqui M, Malaga M, Moran-Mariños C, Fanning NF, Algin O, Samaniego EA, Pabon B, Mouchtouris N, Altschul DJ, Jabbour P, Ortega-Gutierrez S. Use of the Woven EndoBridge Device for Sidewall Aneurysms: Systematic Review and Meta-analysis. AJNR Am J Neuroradiol 2023; 44:165-170. [PMID: 36635056 PMCID: PMC9891330 DOI: 10.3174/ajnr.a7766] [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: 11/09/2022] [Accepted: 12/18/2022] [Indexed: 01/13/2023]
Abstract
BACKGROUND The Woven EndoBridge device was originally approved to treat intracranial wide-neck saccular bifurcation aneurysms. Recent studies have suggested its use for the treatment of sidewall intracranial aneurysms with variable success. PURPOSE Our aim was to evaluate the safety and efficacy of the Woven EndoBridge device for sidewall aneurysms using a meta-analysis of the literature. DATA SOURCES We performed a systematic review of all studies including patients treated with the Woven EndoBridge device for sidewall aneurysms from inception until May 2022 on Scopus, EMBASE, MEDLINE, the Web of Science, and the Cochrane Central Register of Controlled Trials. STUDY SELECTION Ten studies were selected, and 285 patients with 288 sidewall aneurysms were included. DATA ANALYSIS A random-effects meta-analysis of proportions using a generalized linear mixed model was performed as appropriate. Statistical heterogeneity across studies was assessed with I2 statistics. DATA SYNTHESIS The adequate occlusion rate at last follow-up was 89% (95% CI, 81%-94%; I2, = 0%), the composite safety outcome was 8% (95% CI, 3%-17%; I2 = 34%), and the mortality rate was 2% (95% CI, 1%-7%; I2 = 0%). Aneurysm width (OR = 0.5; P = .03) was the only significant predictor of complete occlusion. LIMITATIONS Given the level of evidence, our results should be interpreted cautiously until confirmation from larger prospective studies is obtained. CONCLUSIONS The initial evidence evaluating the use of the Woven EndoBridge device for the treatment of wide-neck sidewall intracranial aneurysms has demonstrated high rates of adequate occlusion with low procedural complications. Our findings favor the consideration of the Woven EndoBridge device as an option for the treatment of sidewall aneurysms.
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Affiliation(s)
- A Rodriguez-Calienes
- From the Departments of Neurology (A.R.-C., J.V.-S., M.G.-C., C.B.Z., M.F., M.M.)
- Neuroscience, Clinical Effectiveness and Public Health Research Group (A.R.-C.), Universidad Científica del Sur, Lima, Peru
| | - J Vivanco-Suarez
- From the Departments of Neurology (A.R.-C., J.V.-S., M.G.-C., C.B.Z., M.F., M.M.)
| | - M Galecio-Castillo
- From the Departments of Neurology (A.R.-C., J.V.-S., M.G.-C., C.B.Z., M.F., M.M.)
| | - C B Zevallos
- From the Departments of Neurology (A.R.-C., J.V.-S., M.G.-C., C.B.Z., M.F., M.M.)
| | - M Farooqui
- From the Departments of Neurology (A.R.-C., J.V.-S., M.G.-C., C.B.Z., M.F., M.M.)
| | - M Malaga
- From the Departments of Neurology (A.R.-C., J.V.-S., M.G.-C., C.B.Z., M.F., M.M.)
| | - C Moran-Mariños
- Unidad de Investigación en Bibliometría (C.M.-M.), Universidad San Ignacio de Loyola, Lima, Peru
| | - N F Fanning
- Department of Neuroradiology (N.F.F.), Cork University Hospital, Cork, Ireland
| | - O Algin
- Department of Radiology (O.A.), Bilkent City Hospital, Ankara, Turkey
- National MR Research Center (O.A.), Bilkent University, Ankara, Turkey
- Radiology Department (O.A.), Medical Faculty, Yıldırım Beyazıt University, Ankara, Turkey
| | - E A Samaniego
- Neurology, Neurosurgery and Radiology (E.A.S., S.O.-G.), University of Iowa Hospitals and Clinics, Iowa City, Iowa
| | - B Pabon
- Department of Neurosurgery (B.P.), AngioTeam, Medellin, Colombia
| | - N Mouchtouris
- Department of Neurological Surgery (N.M., P.J.), Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
| | - D J Altschul
- Department of Neurological Surgery (D.J.A.), Montefiore Medical Center, Bronx, New York
| | - P Jabbour
- Department of Neurological Surgery (N.M., P.J.), Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
| | - S Ortega-Gutierrez
- Neurology, Neurosurgery and Radiology (E.A.S., S.O.-G.), University of Iowa Hospitals and Clinics, Iowa City, Iowa
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Results of the pToWin Study: Using the pCONUS Device for the Treatment of Wide-Neck Intracranial Aneurysms. J Clin Med 2022; 11:jcm11030884. [PMID: 35160333 PMCID: PMC8836830 DOI: 10.3390/jcm11030884] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 02/02/2022] [Accepted: 02/04/2022] [Indexed: 12/03/2022] Open
Abstract
Coil embolization has become a well-established option for the treatment of intracranial aneurysms. Yet, wide-neck bifurcation aneurysms (WNBAs) remain a challenge. The pCONUS is the first generation of a stent-like implant for the bridging of WNBAs to enable coiling. The pToWin study was a prospective, single-arm, multicenter study conducted to analyze the safety and efficacy of the pCONUS in the treatment of WNBAs. The primary effectiveness endpoint was the rate of adequate occlusion of the aneurysm at 3–6 and 7–12 months. The primary safety endpoint was the occurrence of major ipsilateral stroke or neurological death during the follow-up. A total of 115 patients were included. Aneurysm locations were the middle cerebral artery in 52 (45.2%), the anterior communicating artery in 35 (30.4%), the basilar artery in 23 (20%), the internal carotid artery terminus in three (2.6%), and the pericallosal artery in two (1.7%) patients. Treatment was successfully performed in all but one patient. The morbi-mortality rate was 1.9% and 2.3% at 3–6 and 7–12 months, respectively. Of the aneurysms, 75.0% and 65.6% showed adequate occlusion at 3–6 and 7–12 months, respectively. pCONUS offers a safe and reasonably effective treatment of WNBAs, demonstrated by acceptable adequate aneurysm occlusion and low rates of adverse neurologic events.
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