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Oliveira LB, Sousa MP, Andreão FF, Prestes MZ, Palavani LB, Batista S, Koester SW, Rabelo NN, Bertani R, Welling LC, Figueiredo EG, Lawton MT. Clinical and Technical Outcomes of Intracranial-Intracranial Bypass for Treating Complex Intracranial Aneurysms: An Analysis of 255 Patients. World Neurosurg 2024; 187:223-235.e4. [PMID: 38762027 DOI: 10.1016/j.wneu.2024.05.053] [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: 01/08/2024] [Revised: 05/09/2024] [Accepted: 05/10/2024] [Indexed: 05/20/2024]
Abstract
BACKGROUND Despite the recent increase in publications centered on intracranial-intracranial (IC-IC) bypasses for complex aneurysms, there is no systematic evidence regarding their outcomes. The purpose was to assess the outcomes of patients subjected to IC-IC bypass for aneurysms. METHODS Following the Preferred Reporting Items for Systematic Reviews and Meta-Analysis, a systematic review was conducted. Criteria for inclusion entailed studies with a cohort of at least 4 patients having undergone IC-IC bypass for aneurysms, detailing at least one outcome, such as patency, clinical outcomes, complications, and procedure-related mortality. When the study included patients who had undergone extracranial-intracranial (EC-IC) bypass, the authors extracted the patency and clinical data to juxtapose them with the results of IC-IC. RESULTS Of the 2509 shortlisted studies, 22 met our inclusion criteria, encompassing 255 patients and 263 IC-IC bypass procedures. The IC-IC bypass procedure exhibited a patency rate of 93% (95% confidence interval [CI]: 89%-95%). The patency rate of IC-IC and EC-IC bypasses did not significantly differ (odds ratio=0.60 [95% CI: 0.18-1.96]). Concerning clinical outcomes, 91% of the IC-IC patients had positive results (95% CI: 85%-97%), with no significant disparity between the IC-IC and EC-IC groups (odds ratio=1.29 [95% CI: 0.43-3.88]). After analysis, the complication rate was 11% (95% CI: 5%-18%). Procedure-related mortality was 1% (95% CI: 0%-4%). CONCLUSIONS IC-IC bypass is valuable for the treatment of complex intracranial aneurysms, boasting high patency and positive clinical outcomes. Complications are unusual, and procedure-related mortality is minimal. Comparing IC-IC and EC-IC led to no significant differences.
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Affiliation(s)
- Leonardo B Oliveira
- Department of Neurosurgery, State University of Ponta Grossa, Ponta Grossa, Paraná, Brazil.
| | - Marcelo Porto Sousa
- Federal University of Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Filipi Fim Andreão
- Federal University of Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Milena Zadra Prestes
- Department of Neurosurgery, State University of Ponta Grossa, Ponta Grossa, Paraná, Brazil
| | | | - Sávio Batista
- Federal University of Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Stefan W Koester
- Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona, USA
| | | | - Raphael Bertani
- Department of Neurosurgery, University of São Paulo, São Paulo, São Paulo, Brazil
| | - Leonardo C Welling
- Department of Neurosurgery, State University of Ponta Grossa, Ponta Grossa, Paraná, Brazil
| | - Eberval G Figueiredo
- Department of Neurosurgery, University of São Paulo, São Paulo, São Paulo, Brazil
| | - Michael T Lawton
- Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona, USA
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Oliveira LDB, Sousa MP, Semione G, Ferreira MY, Batista S, Palavani LB, Andreão FF, Diniz JBC, Rabelo NN, Bertani R, Welling LC, Lawton MT, Figueiredo EG. Posterior Inferior Cerebellar Artery-Posterior Inferior Cerebellar Artery Bypass versus Occipital Artery-Posterior Inferior Cerebellar Artery Bypass for Treating Posterior Circulation Aneurysms: A Systematic Review and Comparative Meta-Analysis. World Neurosurg 2024; 185:403-416.e7. [PMID: 38458251 DOI: 10.1016/j.wneu.2024.02.153] [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: 02/15/2024] [Accepted: 02/28/2024] [Indexed: 03/10/2024]
Abstract
BACKGROUND When traditional therapies are unsuitable, revascularization becomes essential for managing posterior inferior cerebellar artery (PICA) or vertebral artery aneurysms. Notably, the PICA-PICA bypass has emerged as a promising option, overshadowing the occipital artery-PICA (OA-PICA) bypass. The objective was to compare the safety and efficacy of OA-PICA and PICA-PICA bypasses. METHODS Following the Preferred Reporting Items for Systematic Reviews and Meta-Analysis guidelines, we conducted a systematic review and meta-analysis to evaluate the safety and efficacy of OA-PICA and PICA-PICA bypasses for treating posterior circulation aneurysms. RESULTS We analyzed 13 studies for the PICA-PICA bypass and 16 studies on the OA-PICA bypass, involving 84 and 110 patients, respectively. The median average follow-up for PICA-PICA bypass was 8 months (2-50.3 months), while for OA-PICA, it was 27.8 months (6-84 months). The patency rate for OA-PICA was 97% (95% confidence interval [CI]: 92%-100%) and 100% (95% CI: 95%-100%) for PICA-PICA. Complication rates were 29% (95% CI: 10%-47%) for OA-PICA and 12% (95% CI: 3%-21%) for PICA-PICA. Good clinical outcomes were observed in 71% (95% CI: 52%-90%) of OA-PICA patients and 87% (95% CI: 75%-100%) of PICA-PICA patients. Procedure-related mortality was 1% (95% CI: 0%-6%) for OA-PICA and 1% (95% CI: 0%-10%) for PICA-PICA. CONCLUSIONS Both procedures have demonstrated promising results in efficacy and safety. PICA-PICA exhibits slightly better patency rates, better clinical outcomes, and fewer complications, but with a lack of substantial follow-up and a smaller sample size. The choice between these procedures should be based on the surgeon's expertise and the patient's anatomy.
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Affiliation(s)
| | - Marcelo Porto Sousa
- Department of Neurosurgery, Federal University of Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Gabriel Semione
- Department of Neurosurgery, University of West Santa Catarina, Joaçaba, Santa Catarina, Brazil
| | - Marcio Yuri Ferreira
- Department of Neurosurgery, Ninth of July University, São Paulo, São Paulo, Brazil
| | - Sávio Batista
- Department of Neurosurgery, Federal University of Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Lucca B Palavani
- Department of Neurosurgery, Max Planck University Center, Indaiatuba, São Paulo, Brazil
| | - Filipi F Andreão
- Department of Neurosurgery, Federal University of Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | | | | | - Raphael Bertani
- Department of Neurosurgery, University of São Paulo, São Paulo, São Paulo, Brazil
| | - Leonardo C Welling
- Department of Neurosurgery, State University of Ponta Grossa, Ponta Grossa, Paraná, Brazil
| | - Michael T Lawton
- Department of Neurosurgery, Barrow Neurological Institute, Phoenix, Arizona, USA
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Saal-Zapata G, Visconti-Lopez FJ. Worldwide Research Trends on Transvenous Embolization of Brain Arteriovenous Malformations: A Bibliometric and Visualized Study. World Neurosurg 2023; 178:20-27. [PMID: 37393998 DOI: 10.1016/j.wneu.2023.06.118] [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: 06/05/2023] [Accepted: 06/25/2023] [Indexed: 07/04/2023]
Abstract
BACKGROUND Transvenous embolization (TVE) of brain arteriovenous malformations (bAVMs) is an emerging endovascular technique that has shown high cure rates in selected cases. The rationale of our study was to determine authorship and worldwide institutional trends and contributions to the knowledge in this topic. METHODS Web of Science database was used. A total of 63 articles were included based on predefined inclusion criteria, which were manually reviewed. The bibliometric analysis involved the use of quantitative bibliometric indicators and network analysis with co-authorship and co-occurrence of terms, which were performed using the bibliometrix package in R and VOSviewer, respectively. RESULTS The first article was published in 2010, with the largest number of articles published in 2022 (10 articles). The average number of citations per document was 11.38, and the annual growth rate was 14.35%. The top 10 authors with the most scientific production on TVE of bAVMs were from France, and the most cited study was published by Iosif C in 2015, followed by Consoli A in 2013, and Chen CJ in 2018. Journal of Neurointerventional Surgery was the journal with the most articles published. The most commonly used keywords were dural arteriovenous fistula, Onyx, vascular disorders, and neurological surgery around 2016, and intervention around 2021. CONCLUSIONS TVE of bAVMs is an emerging technique. Our search identified some scientific articles, without randomized clinical trials, but many case series from single institutions. French and German institutions are the pioneers in the field, and further research is required in specialized endovascular centers.
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Affiliation(s)
- Giancarlo Saal-Zapata
- Department of Neurosurgery, Hospital Nacional Guillermo Almenara Irigoyen-EsSalud, La Victoria, Lima, Peru; Department of Interventional Neurosurgery, Clínica Angloamericana, San Isidro, Lima, Peru
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Chen Y, Chen P, Duan G, Li R, Li Z, Guo G. Extracranial-intracranial bypass surgery for intracranial aneurysm of the anterior cerebral circulation: A systematic review and meta-analysis. Front Neurol 2023; 14:1174088. [PMID: 37064185 PMCID: PMC10102499 DOI: 10.3389/fneur.2023.1174088] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Accepted: 03/20/2023] [Indexed: 04/03/2023] Open
Abstract
BackgroundThe safety of extracranial–intracranial (EC–IC) bypass in the management of anterior circulation intracranial aneurysms (IAs) remains to be determined. This systematic review aims to summarize the existing evidence and provide guidance for the precise management of IAs.Data sourceWe constructed search strategies and comprehensively searched Pubmed, Medline, Embase, Web of science, and Cochrane library.MethodsThis systematic review was actualized according to the PRISMA statement. We evaluated study quality using the methodological index for non-randomized study (MINORS). Effect sizes were pooled using a random-effects model. Heterogeneity between studies was assessed using the I2 test. Publication bias was assessed using the Egger's test. The registration number for this systematic review is CRD42023396730.ResultThis systematic review included a total of 21 articles, involving 915 patients. Postoperative bypass patency rate was 99% (95% CI 0.98–1.00); short-term follow-up was 98% (95% CI 0.94–1.00); long-term follow-up was 95% (95% CI 0.93–0.97). The long-term follow-up occlusion rate of saphenous vein was higher than that of radial artery (OR 6.10 95% CI 1.04–35.59). Short-term surgery-related mortality was 0.3% (95% CI 0.000–0.012); long-term follow-up was 0.4% (95% CI 0.000–0.013); The proportion of patients with a score of 0–2 on the modified Rankin Scale (mRS) during long-term follow-up was 92% (95% CI 0.86–0.98). The incidence rates of long-term follow-up complications were: ischemic 3% (95% CI 0.01–0.06); hemorrhagic 1% (95% CI 0.00–0.03); neurological deficit 1% (95% CI 0.00–0.03); other 3% (95% CI 0.01–0.06).LimitationMost of the included studies were retrospective studies. Studies reporting preoperative status were not sufficient to demonstrate postoperative improvement. Lack of sufficient subgroup information such as aneurysm rupture status.ConclusionEC–IC therapy for anterior circulation IAs has a high safety profile. Higher level of evidence is still needed to support clinical decision.Systematic review registrationhttps://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42023396730, identifier: CRD42023396730.
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Affiliation(s)
- Yang Chen
- Department of Neurosurgery, The First Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Pengyu Chen
- Department of Neurosurgery, The First Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Guosheng Duan
- Shanxi Provincial People's Hospital, Shanxi Medical University, Taiyuan, China
| | - Ren Li
- Department of Neurosurgery, The First Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Ziao Li
- Department of Neurosurgery, The First Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
| | - Geng Guo
- Department of Emergency, The First Hospital of Shanxi Medical University, Taiyuan, Shanxi, China
- *Correspondence: Geng Guo
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Mullarkey MP, Zeineddine HA, Honarpishesh P, Kole MJ, Cochran J. The chicken wing training model in cerebrovascular microsurgery for the side-to-side bypass. J Clin Neurosci 2022; 106:76-82. [DOI: 10.1016/j.jocn.2022.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 09/22/2022] [Accepted: 10/01/2022] [Indexed: 11/05/2022]
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