Top 100 cited articles on epilepsy and status epilepticus: A bibliometric analysis

The Top 100 Most Cited Journal Articles on Hydrocephalus

Hydrocephalus represents a significant burden of disease, with more than 383,000 new cases annually worldwide. When the magnitude of this condition is considered, a centralized archive of pertinent literature is of great clinical value. From a neurosurgical standpoint, hydrocephalus is one of the most frequently treated conditions in the field. The focus of this study was to identify the top 100 journal articles specific to hydrocephalus using bibliometric analysis. Using the Journal of Citation Report database, 10 journals were identified. The Web of Science Core Collection was then searched using each journal name and the search term "hydrocephalus." The results were ordered by "Times Cited" and searched by the number of citations. The database contained journal articles from 1976 to 2021, and the following variables were collected for analysis: journal, article type, year of publication, and the number of citations. Journal articles were excluded if they had no relation to hydrocephalus, mostly involved basic science research, or included animal studies. Ten journals were identified using the above criteria, and a catalog of the 100 most cited publications in the hydrocephalus literature was created. Articles were arranged from highest to lowest citation number, with further classification by journal, article type, and publication year. Of the 100 articles referenced, 38 were review articles, 24 were original articles, 15 were comparative studies, 11 were clinical trials, six were multi-center studies, three were cross-sectional, and three were case reports with reviews. Articles were also sorted by study type and further stratified by etiology. If the etiology was not specified, studies were instead subcategorized by treatment type. Etiologies such as aqueductal stenosis, tumors, and other obstructive causes of hydrocephalus were classified as obstructive (n=6). Communicating (n=15) included idiopathic, normal pressure hydrocephalus, and other non-obstructive etiologies. The category "other" (n=3) was assigned to studies that included etiologies, populations, and/or treatments that did not fit into the classifications previously outlined. Through our analysis of highly cited journal articles focusing on different etiologies and the surgical or medical management of hydrocephalus, we hope to elucidate important trends. By establishing the 100 most cited hydrocephalus articles, we contribute one source, stratified for efficient referencing, to facilitate clinical care and future research on hydrocephalus.

The 100 top-cited articles in uveitis from 1950 to 2022

OBJECTIVES

This bibliometric analysis aimed to clarify research characteristics and trends in research on uveitis by analyzing the top 100 most-cited articles.

METHODS

We used the Web of Science database to search articles published in English from January 1, 1950, to February 10, 2022, without other restrictions. The 100 most-cited articles related to uveitis were screened. The publication year, institution, author, journal, country, research topic, and research type of each article were analyzed.

RESULTS

The citations of the top 100 articles ranged from 144 to 2292 times. The years 2004 and 2005 included the largest number of articles published, with 17 in total. Most of the papers were published in Ophthalmology (n = 19), a specialized ophthalmology journal. The top 100 articles originated from 14 countries, with the most from the USA (n = 44). Twenty research institutions and 18 authors contributed two or more articles, with the National Eye Institute (USA) (n = 10) and Robert B. Nussenblatt (n = 10) contributing the most. The types of studies were mainly clinical studies (n = 64), focusing on the treatment of uveitis (n = 36).

CONCLUSION

This study summarizes and analyzes the research characteristics and trends of uveitis. The contribution of the USA is explained, the past and current treatments of uveitis are emphasized, and the directions of future research are clarified.

Global landscape of COVID-19 and epilepsy research: A bibliometric analysis

Background

A large number of papers regarding coronavirus disease 2019 (COVID-19) and epilepsy have been published since the declaration of the COVID-19 pandemic. However, there is no bibliometric analysis on these papers. In this study, we aimed to analyze the bibliometric characteristics of these papers, thus identifying the trends and future directions of COVID-19 and epilepsy research.

Methods

Scientific papers regarding COVID-19 and epilepsy were retrieved through searches of the Web of Science Core Collection database. Title, authors, contributing institute, country, source journal, times cited, and additional information were extracted from each selected paper. Microsoft Excel 2019 and GraphPad Prism 8 were used to analyze the extracted data and export the bar charts and tables whilst VOSviewer software was used to perform and visualize co-authorship analysis and co-occurrence analysis of keywords.

Results

A total of 317 papers regarding COVID-19 and epilepsy were included in the final analysis. Epilepsy & Behavior published the largest number of papers (n = 84). J. Helen Cross and Naoto Kuroda were the most prolific authors (n = 13 each). The United States (n = 88) and the University of London (n = 23) were the country and organization with the most contributions, respectively. The strongest authors' collaborations were between Giovanni Assenza and Jacopo Lanzone and between J. Helen Cross and Nathalie Jette. Selected author keywords were organized into seven clusters, and the keywords in clusters 1 and cluster 4 had the largest average appearing year of any clusters.

Conclusion

This is the first bibliometric analysis of papers regarding COVID-19 and epilepsy. Our results showed that the United States was the leading country whilst J. Helen Cross was the most influential scholar in COVID-19 and epilepsy research. psychological consequences of COVID-19, and the safety of COVID-19 vaccines for people with epilepsy, are possible areas for future research on COVID-19 and epilepsy.

Top 100 most cited journal articles in anatomy

The number of citations a journal article receives can be used to represent its impact on its field. The aim of the current study was to identify and characterize the top 100 cited articles in journals related to anatomy. The Journal Citation Report database was searched to identify journals categorized as anatomy and morphology. The top 15 most highly cited journals were selected for review. The articles from these journals were then sorted by "Times Cited". The timeline used was 1976-2001. The top 100 most cited articles were extracted for analysis. Articles were excluded if they focused on basic scientific research or animal studies. Fifteen journals were identified based on our criteria using the Journal Citation Report database and the articles were sorted by most cited; 916 anatomy articles were screened to select the top 100 cited since 1976. Among the selected articles, 46 were published in Journal of Anatomy, 13 in Clinical Anatomy, 12 in Microscopy Research and Technique, 11 in Surgical and Radiologic Anatomy, seven in Brain Structure & Function, five in Annals of Anatomy - AnatomischerAnzeiger, three in Anatomical Record - Advances in Integrative Anatomy and Evolutionary Biology, two in Cells Tissues Organs, and one in Developmental Dynamics. Our study identified the top 100 journal articles in anatomy with a clinical and surgical focus. This compilation of articles could help anatomists and clinicians familiarize themselves with impactful research included in terms of study type and field of anatomy, journal of publication, and recurring authors.

The 100 most-cited articles in orthodontic journals in the last 20 years

INTRODUCTION

This study aimed to identify and analyze the 100 most-cited articles published in orthodontic scientific journals in the past 21 years.

METHODS

The research was conducted in the Thomson Reuters Web of Science data citation index, considering articles from 2000 to 2020 and the category of dentistry, oral surgery, and medicine. Information about the number of citations, citations per year, title, authors, year of publication, the title of scientific journals, type of study, keywords, and thematic field were extracted for each article. Descriptive statistical analyses were performed to evaluate the collected data. The Pearson correlation analysis was used to explore the relationship between publication and the number of citations received. The VOSviewer software (Leiden University Center for Science and Technology Studies, Leiden, the Netherlands) was used to generate the keyword cooccurrence network.

RESULTS

The number of citations of the 100 selected articles ranged from 122 to 547. The journal with the largest number of cited articles was the American Journal of Orthodontics and Dentofacial Orthopedics. Most of the papers were cross-sectional and longitudinal studies, and the most frequent thematic fields among the selected articles were anchorage, root resorption, and rapid maxillary expansion. Orthodontic treatment, anchorage, and root resorption were the most frequent keywords.

CONCLUSIONS

Bibliometric analysis of citations revealed a greater centralization of orthodontic studies. Most of the articles were published in a single journal and by one country. Anchorage is a trending topic in orthodontics, and cross-sectional and longitudinal studies are the most-cited types of papers.

Bibliometric Analysis of Publications From 2011-2020 in 6 Major Neurosurgical Journals (Part 1): Geographic, Demographic, and Article Type Trends

INTRODUCTION

Scientometrics is a subfield of bibliometrics that statistically analyzes publications trends. The aim of this initial study was to investigate trends in the 6 major neurosurgical journals from the last 10 years.

METHODS

We searched Web of Science and Scopus for articles published in Neurosurgery, Journal of Neurosurgery, Journal of Neurosurgery: Spine, Journal of Neurosurgery: Pediatrics, Operative Neurosurgery, and World Neurosurgery from January 1, 2011, to December 31, 2020. Statistically analyzed parameters included national and continental distribution of articles, population density, density of neurosurgeons per 100,000 inhabitants, national per capita GDP, and national literacy rates. Bibliometric parameters assessed included total number of articles, H-indices, absolute/average number of citations per article, and article types.

RESULTS

A total of 39,239 articles were published in the 6 journals. Journal of Neurosurgery and Neurosurgery had the strongest source impact. The most productive year was 2019 with 6811 published articles. Corresponding authors from the USA, China, Japan, Western Europe, and Turkey were the most productive. Articles published by authors from the USA received the majority of citations. Publication numbers increased in proportion with increases in country population, literacy rate, per capita GDP, and neurosurgeon density. The highest number of articles were published in 2016, and the fewest were published in 2020.

CONCLUSIONS

Geographic trends in the diversity of neurosurgical publications sustained its steady increase in most developed counties. Simultaneously, the publication gap between developed and developing countries has remained stagnant.

Bibliometric analysis of publications on pediatric epilepsy between 1980 and 2018

BACKGROUND/OBJECTIVE

Childhood epilepsy is one of the disease groups with the highest disease burden in society. This study aimed to guide researchers for new studies by determining the most compelling studies and current issues through a bibliometric analysis of scientific outputs about childhood epilepsy between 1980 and 2018.

METHODS

The literature review was conducted using the Web of Science (WoS) database. Epilepsy and status epilepticus were used as search keywords in WoS, and the search was performed only in the title section of the publications. Only publications in the research field of pediatrics were included in the study and were analyzed bibliometrically. Linear regression analysis was used to estimate the number of publications in the coming years.

RESULTS

It was seen that the number of articles on pediatric epilepsy has been increasing with a linear trend. A total of 3424 publications were found. Of these publications, 2197 (64.2%) articles were analyzed bibliometrically. The top two most productive countries were the USA(654) and Italy (199). The first two most active institutions were The Hospital for Sick Children (40, 1.8%) and Tel Aviv University (38, 1.7%). The top three journals that published the most were Journal of Child Neurology (422, 19.2%), Pediatric Neurology (335, 15.2%), and Developmental Medicine and Child Neurology (201, 9.1%).

CONCLUSION

In this bibliometric study on childhood epilepsies, a data summary of 2197 articles published between 1980 and 2018 is presented. We hope that this article will be a useful literature review and guide researchers working on pediatric epilepsy.

Collaborative scientific production of epilepsy in Latin America from 1989 to 2018: A bibliometric analysis

Socioeconomic and cultural factors coupled with an inability to control many endemic and emerging diseases have resulted in a growing incidence of epilepsy cases in Latin America. This study aimed to analyze and describe scientific research output trends in epilepsy research for the period 1989-2018. Publications were extracted from Scopus indexed journals. Bibliometric analysis was used to analyze scientific output including number of annual publications, documents, and publication characteristics. A mapping analysis using VOSviewer software visualized collaborative network analysis, co-citation analysis, and keyword co-occurrence analysis. SciVal quantitatively analyzed distribution of countries, institutions, citation counts, H-index, and research collaborative partnerships. A total of 176507 records were initially retrieved after which 5636 were analyzed. Overall, an increasing trend for publication output was observed from 19 articles in 1989 to 342 in 2018; the number of publications significantly increased over the past 20 years (p = 0.0065). The majority of publications were original articles (74.4%). Brazil had the most scientific production (55.2%), followed by Mexico (15.4%) and Argentina (10%). Extra-regional collaboration was primarily with the United States, United Kingdom, and Canada; intraregional collaboration was low. The most common area of investigation by co-occurrences was "diagnostic research" (37.2%), with studies based on electroencephalography and nuclear magnetic resonance. Epilepsy research in Latin America has seen a steady growth with significant increases over the past 20 years. Brazil, Mexico, and Argentina are the most productive countries in the field collaborating primarily with extra-regional countries of high-income.

The top 100 most-cited articles citing human brain banking from 1970 to 2020: a bibliometric analysis

Many articles involving human brain banks have been published. Bibliometric analysis can determine the history of the development of research and future research trends in a specific field. Three independent researchers retrieved and reviewed articles from the Web of Science database using the following strategy: "TS = (((brain OR cerebral) AND (bank* OR biobank*)) OR brainbank*)." The top 100 most-cited articles were identified and listed in descending order by total citations. Web of Science was used to identify ten recent articles describing bank construction. GeenMedical ( https://www.geenmedical.com/ ) was used to identify ten recent articles from journals with an impact factor (IF) > 20. The top 100 most-cited articles citing human brain banks were published between 1991 and 2017. Fifty-two percent of the articles focused on a specific type of neurodegenerative disease, and 16% discussed the construction and development of human brain banks. Articles using brain tissue had more total and annual citations than those on bank construction. Ten articles with high IFs were published from 2017 to 2019, and they were primarily studies using novel research techniques such RNA sequencing and genome-wide association studies. Most studies were published in journals specializing in neurology or neuroscience such as Movement Disorders (10%), and had been conducted in the United States (52%) by neurologists (62%). The top 100 most-cited articles and recent publications citing human brain banks and their bibliometric characteristics were identified and analyzed, which may serve as a useful reference and pave the way for further research.

A Bibliometric Analysis of the Most Cited Articles in Neurocritical Care Research

Bibliometric analyses may indicate the most active journals, authors, countries, institutions and specialties by evaluating the most cited articles in a given research field. To the authors' knowledge, there is no bibliometric analysis regarding neurocritical care research. Thus, the aim of this study is to analyze and to provide a scope of the current scientific production in this area. The 100 most cited articles in the neurocritical care research were retrieved from the research "(neurocritical) AND (care)" in the Scopus database. The variables collected and included in this analysis were: number of citations, article title, first author's name, year and journal of publication and its impact factor (IF), specialty, affiliation and country of the corresponding author at the time of publication, and category of the article. Also, these variables were assessed for primary research only. The articles were published in 34 different journals from 1995 to 2017, with a mean citation number of 109.36, ranging from 44 to 540. Neurocritical Care (23 articles in top 100 and 2190 citations, IF = 3.163) and Critical Care Medicine (20 articles and 2896 citations in top 100, IF = 6.630) were the journals with the greatest number of articles and citations, respectively. Neurocritical Care also had the highest number of primary research papers (15 articles, accounting for 850 citations). Excepting one article from Asia (Singapore) and one from Oceania (Australia), all the other 98 papers were from North America (67) or Europe (31). United States was the country with most articles (60, 35 primary research) and citations (6115) among the top 100. Columbia University (11 articles, being 7 primary research, and 915 citations) was the institution with the highest number of articles and primary research articles in top 100, whereas University of Heidelberg (6 articles and 1220 citations) was the most cited institution. Neurology was the specialty with the greatest number of publications in top 100 and the most cited one (57 articles and 5983 citations). The first author with the greatest number of publications as well as primary research articles was A. I. Qureshi (5 articles, being 4 primary research, and 660 citations), while the most cited was K. H. Polderman (2 articles and 749 citations). Fifty-nine publications were primary and 41 secondary research. Among primary research, treatment/management was the most frequent and most cited topics (33 articles and 4172 citations). To the authors' knowledge, this is the first bibliometric analysis regarding neurocritical care research. Our findings suggest that the neurocritical care research field is more prominent in North America and Europe, more frequently published in specific critical care journals and after 1994. The most discussed topic was related to treatment and/or management within neurocritical care.

The top 100 cited articles on Obsessive Compulsive Disorder (OCD): A citation analysis

There is an exponential growth in the field of biomedical literature over the years. Although numerous articles are published every year, few of them present important conceptual advances in that particular field and are found to be influential in the evolution of the field. The number of citations a publication receives can be used as a proxy marker of its impact on the field. Hence we aimed to analyze the top cited articles (n = 100) on obsessive compulsive disorder (OCD) as of July 2018. Google scholar database was searched using a freely available software, Publish or Perish. Information related to number of citations, publication title, publication year, name of the journal, country of origin, author details, institution of origin, article type, and article design. The original research articles were further classified into descriptive/epidemiology, mechanism, management, scale/measurement, imaging and medical psychiatry. The citation classics suggest that clinical trials/management, epidemiology and neuroimaging were the most researched areas in the OCD research. These citation classics provide an important insight into the historical developments, like the role of serotonin and caudate in OCD. This approach of citation analysis provides an opportunity to retrieve the classic articles on OCD, and describes the trends in OCD research.

Top-cited Articles in Regenerative Endodontics: A Bibliometric Analysis

INTRODUCTION

Bibliometric analysis is a method for quantifying the research productivity, author performance, and manuscript impact. The citation count received by a scientific article is one of the indicators of its impact within a field. The purpose of this study was to identify the 100 top-cited articles published in regenerative endodontics and to analyze their main characteristics.

METHODS

Thomson Reuters Web of Science was searched to retrieve the 100 most-cited articles in "regenerative endodontics" published from January 1991 to February 2018 in the category of "Dentistry, Oral Surgery and Medicine." Among the included top-cited articles, the following parameters were recorded and analyzed: journal name, authors, institution, country, publication title and year, number of citations and average citations, type of study, collaborations, and key words. The data were analyzed using SPSS version 19.0 (IBM Corp, Armonk, NY) and VOS viewer software (version 1.6.7; Leiden University Center for Science and Technology Studies, Leiden, Netherlands).

RESULTS

Among the 100 top cited articles, the highest number of citations that an article received was 309. The top cited articles appeared in 14 different journals, and the Journal of Endodontics published the greatest number of these articles (66%). The majority of articles were published in the year 2014 (n = 17). The majority of articles originated from the United States (n = 51) with the most contribution from The University of Texas Health Science Center, San Antonio, TX. The most frequent first authors were Torabinejad (n = 4), Nosrat (n = 3), and Thibodeau (n = 3). In vitro studies were the most common study design (n = 29) followed by reviews (n = 21). "Regenerative endodontics" was the most frequently used key word.

CONCLUSIONS

This bibliometric analysis reveals the progress and trend of research in the field of regenerative endodontics. The in vitro articles published in the field of regenerative endodontics had the highest number of citations and average citation rates.

Status Epilepticus: Behavioral and Electroencephalography Seizure Correlates in Kainate Experimental Models

Various etiological factors, such as head injury, chemical intoxication, tumors, and gene mutation, can induce epileptogenesis. In animal models, status epilepticus (SE) triggers epileptogenesis. In humans, convulsive SE for >30 min can be a life-threatening medical emergency. The duration and severity of convulsive SE are highly variable in chemoconvulsant animal models. A continuous video-electroencephalography (EEG) recording, and/or diligent direct observation, facilitates quantification of exact duration of different stages of convulsive seizures (Racine stages 3–5) to determine the severity of SE. A continuous convulsive SE for >30 min usually causes high mortality in some rodents and results in widespread brain damage in the surviving animals, in spite of treating with antiepileptic drugs (AEDs). AEDs control behavioral seizures but not EEG seizures. The severity of initial SE impacts epileptogenesis and cognitive function; therefore, quantitative assessment of behavioral SE and EEG in animal models will help to understand the impact of SE severity on epileptogenesis. There are several excellent reviews on experimental models of seizure/SE/epilepsy. This review focusses on the comparison of induction and characterization of behavioral SE and EEG correlates in mice and rats induced by kainate. We also discuss the advantages of repeated low dose of kainate (i.p. route), which minimizes variability in the initial SE severity between animals and reduces mortality rate. A refined approach to induce SE with kainate also addresses the two of the 3Rs (i.e., refinement and reduction), the guiding principles for ethical and scientific standpoint of animal research.