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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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Visconti-Lopez FJ, Saal-Zapata G. Global Research Trends of Neurosurgery: A Comprehensive Bibliometric and Visualized Analysis of Systematic Reviews. World Neurosurg 2023; 176:e345-e356. [PMID: 37244520 DOI: 10.1016/j.wneu.2023.05.061] [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: 04/07/2023] [Revised: 05/16/2023] [Accepted: 05/17/2023] [Indexed: 05/29/2023]
Abstract
OBJECTIVE This study aimed to determine the bibliometric characteristics of scientific articles on systematic reviews of neurosurgery worldwide. METHODS Bibliographic searches were performed in journals indexed by the Web of Science database until 2022, with no language restrictions. A total of 771 articles were ultimately included on the basis of predefined inclusion criteria, which were manually reviewed. The bibliometric analysis involved the use of quantitative bibliometric indicators and network analysis, which were performed using the bibliometrix package in R and VOSviewer, respectively. RESULTS The first publication was in 2002, and the number of publications increased over time, with the largest number of publications in 2021 (156 articles). The average number of citations per document was 17.36, and the annual growth rate was 6.82%. Nathan A. Shlobin was the author with the most published articles (19 articles). The most cited study was published by Jobst BC (2015). WORLD NEUROSURGERY was the journal with the most publications (51 articles). The country of corresponding authors with the most publications and the greatest number of total citations was the United States. The affiliations with the most articles were University of Toronto (67 articles) and Harvard Medical School (54 articles). CONCLUSIONS The increasing trend during the past 20 years, and especially in the past 2 years, highlights the advancements in various subspecialities in the field. Our analysis revealed that North American and Western European countries are at the forefront of the field. There is a poor output of publications, authors, and affiliations in Latin-American and African countries.
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Affiliation(s)
| | - Giancarlo Saal-Zapata
- Department of Neurosurgery, Hospital Nacional Guillermo Almenara Irigoyen-EsSalud, Lima, Lima, Peru; Department of Interventional Neurosurgery, Clinica Angloamericana, Lima, Peru
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da Costa Borsatto GJ, Bertelli Ramos M, Mota Telles JP, Nunes Rabelo N, Jacobsen Teixeira M, Gadelha Figueiredo E. Research trends within aneurysmal subarachnoid hemorrhage from 2017 to 2021: a bibliometric study. Neurosurg Rev 2023; 46:165. [PMID: 37405510 DOI: 10.1007/s10143-023-02056-7] [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: 05/09/2023] [Revised: 05/28/2023] [Accepted: 06/17/2023] [Indexed: 07/06/2023]
Abstract
Bibliometric analyses are a well-established strategy for understanding the dynamics of publications. Aneurysmal subarachnoid hemorrhage (aSAH) is a hot topic in neurology and neurosurgery research. To perform a bibliometric analysis of recent publications within aSAH. Articles addressing aSAH published between 2017 and 2021 were included and had their information extracted from Scopus. A total of 2177 articles were included. The mean number of citations was 6.18 (95%CI = 5.77-6.59). 2021 and 2020 were the most prolific years. World Neurosurgery (N = 389/2,177 articles; 17,87%) was the leading publisher, and American Journal of Neuroradiology had the highest number of citations per article (14.82) among journals with ≥ 10 publications. Primary research (N = 1624/2177) predominated, followed by case reports (N = 434/2,177). Among secondary studies, systematic reviews (N = 78/119) surpassed narrative reviews (N = 41/119). USA led the number of publications (N = 548/2,177 articles; 25.17%), followed by China (N = 358/2,177 articles; 16.44%). High-income countries had a higher number of publications (N = 1624/2177) and more citations per article (6.84) than middle-income countries (N = 553/2177 and 4.25, respectively). There were zero articles from low-income countries. European and North American institutions had the greatest research impact. There was an increase in the number of published articles in the last few years (2020 and 2021). Many studies had a low level of evidence, whereas interventional studies were uncommon.
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Affiliation(s)
| | - Miguel Bertelli Ramos
- Department of Neurosurgery, Hospital Do Servidor Público Estadual de São Paulo, São Paulo, SP, Brazil
| | | | - Nícollas Nunes Rabelo
- Division of Neurosurgery, University of São Paulo, Dr. Eneas de Carvalho Aguiar Avenue, 255, São Paulo, SP, 05403-000, Brazil
| | - Manoel Jacobsen Teixeira
- Division of Neurosurgery, University of São Paulo, Dr. Eneas de Carvalho Aguiar Avenue, 255, São Paulo, SP, 05403-000, Brazil
| | - Eberval Gadelha Figueiredo
- Division of Neurosurgery, University of São Paulo, Dr. Eneas de Carvalho Aguiar Avenue, 255, São Paulo, SP, 05403-000, Brazil.
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Marín-Castañeda LA, Armas-Salazar A, Cid-Rodríguez FX, Lee A, Carrillo-Ruiz JD. Letter to the Editor Regarding “Neurosurgery Research Productivity in Latin American and Caribbean Countries: A Bibliometric and Visualized Study”. World Neurosurg 2023; 172:122-124. [PMID: 37012724 DOI: 10.1016/j.wneu.2022.12.122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Accepted: 12/27/2022] [Indexed: 03/31/2023]
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Visconti-Lopez FJ, Solorzano-Salazar DM, Vargas-Fernández R. In Reply to the Letter to the Editor Regarding “Neurosurgery Research Productivity in Latin American and Caribbean Countries: A Bibliometric and Visualized Study”. World Neurosurg 2023; 172:125-127. [PMID: 37012725 DOI: 10.1016/j.wneu.2023.01.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 01/04/2023] [Indexed: 03/31/2023]
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Abu-Bonsrah N, Dada OE, Haizel-Cobbina J, Ukachukwu A, Spann M, Adu KO, Banson M, Bandoh D, Sarpong K, Dadey D, Ametefe M, Kanmounye US, Totimeh T, Groves ML. Understanding the Ghanaian Neurosurgical Literature: A Scoping Review and Bibliometric Analysis. World Neurosurg 2023; 169:12-19. [PMID: 36265747 DOI: 10.1016/j.wneu.2022.10.044] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 10/11/2022] [Accepted: 10/12/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND Research serves to bolster clinical neurosurgery by critically assessing various disease pathologies, while identifying important challenges and opportunities. However, there is limited information on the landscape of the Ghanaian neurosurgical literature. METHODS A scoping review and bibliometric analysis was conducted in accordance with PRISMA guidelines. PubMed, Embase, Global Index Medicus, and Web of Science electronic databases were searched from inception until December 21, 2021 for English language articles about neurosurgery in Ghana. RESULTS 927 articles were identified and 66 were ultimately included in the analysis. A majority of them, 42.4%, were retrospective cohort studies, with 62.1% published after 2010. There were no randomized controlled or basic science studies. Most articles were published in the West African Journal of Medicine (24.2%) and non-infectious/non-traumatic spinal pathology was the most commonly discussed topic (22.7%); 66.7% of articles included only authors affiliated with Ghanaian institutions, and international collaborators frequently originated from the United States (15.9%). Only 22.7% of the manuscripts reported a funding source. Commonly reported challenges included limited sample sizes, delays in diagnosis and treatment, and lack of proper diagnostic tools and specialized care. CONCLUSIONS This review revealed that while the Ghanaian academic neurosurgery output has been increasing over time, these have been limited to cohort studies largely assessing spine pathology. The Ghanaian neurosurgical research environment may be bolstered by an increase in research funding, the establishment of longitudinal clinical databases, training in research methodology, increased incentives for researchers, strengthening of research collaborative networks, and increased engagement of neurosurgical trainees in research.
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Affiliation(s)
- Nancy Abu-Bonsrah
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA; Research Department, Association of Future African Neurosurgeons, Yaounde, Cameroon.
| | | | - Joseline Haizel-Cobbina
- Vanderbilt Institute of Global Health, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Alvan Ukachukwu
- Duke Global Neurosurgery and Neurology, Duke Hospital Department of Neurosurgery, Durham, North Carolina, USA
| | - Marcus Spann
- Informationist Services, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
| | - Kojo Okyere Adu
- Department of Internal Medicine, LEKMA Hospital, Accra, Ghana
| | - Mabel Banson
- Department of Neurosurgery, Korle-Bu Teaching Hospital, Accra, Ghana
| | - Dickson Bandoh
- Department of Neurosurgery, Komfo Anokye Teaching Hospital, Kumasi, Ghana
| | - Kwadwo Sarpong
- Department of Neurosurgery, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - David Dadey
- Department of Neurosurgery, Stanford University School of Medicine, San Francisco, California, USA
| | - Mawuli Ametefe
- Department of Neurosurgery, Korle-Bu Teaching Hospital, Accra, Ghana
| | | | - Teddy Totimeh
- Department of Neurosurgery, University of Ghana Medical Center, Accra, Ghana
| | - Mari L Groves
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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