Yuen Jason, Jabal Mohamed Sobhi, Savastano Luis E, Kallmes David F
Neurological Surgery, Mayo Clinic, Rochester, USA.
Radiology, Mayo Clinic, Rochester, USA.
Cureus. 2022 May 22;14(5):e25204. doi: 10.7759/cureus.25204. eCollection 2022 May.
The last decade has witnessed a major expansion in endovascular interventions concurrent with a contraction of open neurovascular surgeries. Whether research efforts have also shifted from open to endovascular neurosurgery is an effect that has not been explored extensively. Understanding the bibliometric trend is important for researchers, funding agencies, and publishing journals. The aim of this review is to explore this potential shift. We compared the bibliometrics of open cerebrovascular and endovascular research articles published in two neurosurgical journals (Journal of Neurosurgery, Neurosurgery) and two neuroradiological journals (Journal of Neurointerventional Surgery, American Journal of Neuroradiology). Data were collected between September 26, 2021, and October 18, 2021. Articles published in 2011, 2013, 2015, 2017, and 2019 from the journals were screened. Neurovascular articles were classified into open surgical, endovascular, or mixed. Bibliometric parameters were collected via SCOPUS and journals' websites. A total of 8,018 articles were screened, of which 1,551 were included (16.2% open, 62.2% endovascular, 21.5% mixed). Most articles were related to aneurysms (76%). Open-access status correlated with increased citations (p<0.001) and Altmetric (p<0.001), which measures online activity. Comparing 2011 and 2019, the article distribution (open/endovascular/mixed) has changed significantly (χ test, p=0.002), with open articles dropping from 23.6% (68/288) to 12.9% (44/342) and endovascular articles rising from 56.6% (163/288) to 65.8% (225/342). Using the Kruskal-Wallis test, the citation distribution is different across the three groups in 2019 (p<0.001), favoring endovascular articles, but not in the other years. Our study suggests a trend of diminishing open neurovascular research output and increasing endovascular research output, in terms of both the number of articles and the citations. More time for citation accumulation may be required to verify this trend.
在过去十年中，血管内介入治疗大幅扩张，同时开放性神经血管手术数量减少。研究工作是否也从开放性神经外科手术转向血管内神经外科手术，这一影响尚未得到广泛探讨。了解文献计量趋势对研究人员、资助机构和学术期刊来说很重要。本综述的目的是探讨这一潜在转变。我们比较了发表在两种神经外科期刊（《神经外科杂志》《神经外科学》）和两种神经放射学期刊（《神经介入手术杂志》《美国神经放射学杂志》）上的开放性脑血管和血管内研究文章的文献计量学情况。数据收集时间为2021年9月26日至2021年10月18日。筛选了这些期刊在2011年、2013年、2015年、2017年和2019年发表的文章。神经血管文章分为开放性手术、血管内或混合型。文献计量参数通过Scopus和期刊网站收集。共筛选了8018篇文章，其中1551篇被纳入（开放性手术占16.2%，血管内占62.2%，混合型占21.5%）。大多数文章与动脉瘤有关（76%）。开放获取状态与引用次数增加（p<0.001）和Altmetric（衡量在线活跃度，p<0.001）相关。比较2011年和2019年，文章分布（开放性手术/血管内/混合型）有显著变化（χ检验，p=0.002），开放性手术文章从23.6%（68/288）降至12.9%（44/342），血管内文章从56.6%（163/288）升至65.8%（225/342）。使用Kruskal-Wallis检验，2019年三组的引用分布不同（p<0.001），血管内文章更受青睐，但其他年份并非如此。我们的研究表明，在文章数量和引用次数方面，开放性神经血管研究产出呈减少趋势，而血管内研究产出呈增加趋势。可能需要更多时间来积累引用次数以验证这一趋势。
