BACKGROUND: This study aimed to identify the directions of research published in the Korean Journal of Anesthesiology (KJA) and identify the main topics and journal network through a bibliometric analysis. The results can be reflected in strategies for the journal's promotion to a top-ranking journal in the anesthesiology category. METHODS: KJA articles from January 1, 2017 to September 11, 2022 were retrieved from the Web of Science Core Collection on September 11, 2022, and analyzed using Biblioshiny. Journal metrics, the document network, the conceptual structure, and social structures were elucidated. RESULTS: Out of 525 articles, fewer than half (48.6%) were from Korean corresponding authors. The impact factor steeply increased from 2.316 in 2019 to 5.167 in 2021. The Hirsch index of KJA was 24. A co-occurrence network of Keywords Plus showed four clusters of central keywords: surgery, management, anesthesia, and mortality. The conceptual structure map of Keywords Plus showed a main cluster of anesthesia and analgesia, while another minor cluster included intubation and induction. The co-citation network demonstrated that KJA was in the same cluster of anesthesiology journals. The collaboration network of the authors' countries showed that Korean authors collaborated mainly with researchers in the United States and Canada. CONCLUSIONS: These results show KJA's developmental process of promotion to a top-tier journal in the anesthesiology category. Furthermore, the following strategies are suggested for journal promotion: recruitment of articles on emerging and highly citable topics; and more active collaboration of society members with researchers worldwide.
BACKGROUND\nKorean Journal of Anesthesiology was published in 1968 and its volume has been increased every year. The purpose of this study was to investigate and to clarify the trend of increasing volumes for 28 years (1968~1996) as quantitative analysis.\nMETHODS\nUsing computerized index of Korean Journal of Anesthesiology ("ART"), the trend, volumes and cumulative records (top ranked 22 frequently cited key words, 16 persons and 10 departments of University) were calculated. Some key words such as "Anesthetic techniques: spinal, Anesthetics, intravenous:, Anesthetics, volatile: halothane, Complications:" was traced every year for grasping the trend of academic concerns.\nRESULTS\n1. Total volumes of articles were about 3,000 (1968~1996). The volumes were increased slowly until 1976 and steeply since 1986. 2. The ratio of clinical case reports has been decreased every year. 3. Key words "Anesthetic techniques", "Surgery" and "Complications" were more frequently cited than the others. 4. Tracing some key words showed their vitality in anesthetic fields. 5. The personal top ranked number of records revealed each author's contribution to Korean Journal of Anesthesiology and the number of records in each department of University could be used as an index of academic activity.\nCONCLUSIONS\nThe extent of the increasing volumes was great especially from 1986 to 1996 and the proportion of original articles has been increased every year. The frequency of the investigated key words showed their own vitality in the field of anesthesiology. The rank according to personal and departmental records suggested the possibility of reflecting a measure of academic concerns and activity.
We evaluated whether there has been an improvement in the quality of randomized controlled trial (RCT) abstracts in the Korean Journal of Anesthesiology (KJA) after the publication of the CONSORT abstract guidelines in 2008. All RCT abstracts published in 2006 and in 2012 were selected as pre-CONSORT and post-CONSORT abstracts, respectively. From the retrieved articles, 102 human RCT abstracts were selected as a pre-CONSORT abstract and 52 were selected as a post-CONSORT abstract. Two reviewers scored every individual item as '0' if the abstract does not adhere to the criteria recommended in the CONSORT abstract statement and scored individual items as '1' if the information suggested by the CONSORT statement was described followed. The k-statistic test demonstrated high agreement between the reviewers (k = 0.914, 95% confidence interval [CI]: 0.878, 0.95]). We compared the frequencies of each item in the abstracts of the pre-CONSORT and post-CONSORT pe-riods using z-tests with Yates correction. More than 90% of the articles from the pre-CONSORT sample group described the five checklist items of intervention (96.1%), objective (95.1%), method-outcome (95.1%), results-outcome (96.1%) and conclusions (100%). With the above-mentioned five checklists, the "randomization" of other sub-items was found in 92.3% of the RCT abstracts in the post-CONSORT sample group, whereas the title, the number of patients analyzed, the harmful effects, and the funding source were noted in less than 20% of the abstracts in both the pre-and post-CONSORT eras. The significant improvement from the pre-era to the post-era samples was related to the trial design, randomization, blinding, and number randomization at a rate increasing from 0 to 53.8% (P < 0.001), from 71.6 to 92.3% (P = 0.006), from 7.8 to 21.2% (P = 0.033) and from 33.3 to 78.8% (P < 0.001), respectively. We calculated the proportion of items which complied with the CONSORT abstract checklist. The mean proportions were 41.7 and 53.0% in the pre-and post-CONSORT period, respectively (P < 0.001, 95% CI for difference: -0.155, -0.071). Absolute points increased significantly at a rate of 11.3% over time (P < 0.001). CONSORT for abstracts aims to improve the reporting accuracy and quality of trial reports and recommends what information should be reported in the constraints when describing a RCT. The results of this article suggest that the reporting quality of RCT abstracts of KJA published in the post-CONSORT period improved, but the quality did not reach the expected level according to the recommendations for reported abstracts. The rate of fulfillment was low, at 41.7%, among pre-CONSORT
BACKGROUND: Trial sequential analysis (TSA) is a recent cumulative meta-analysis method used to weigh type I and II errors and to estimate when the effect is large enough to be unaffected by further studies. The aim of this study was to illustrate possible TSA scenarios and their significance using meta-analyses published in the Korean Journal of Anesthesiology as working material. METHODS: We performed a systematic medical literature search for meta-analyses published in the Korean Journal of Anesthesiology. TSA was performed on each main outcome, estimating the required sample size on the calculated effect size for the intervention, considering a type I error of 5% and a power of 90% or 99%. RESULTS: Six meta-analyses with a total of ten main outcomes were included in the analysis. Seven TSAs confirmed the results of the meta-analyses. However, only three of them reached the required sample size. In the two TSAs, the cumulative z-lines were not statistically significant. One TSA boundary for effect was reached with the 90% analysis, but not with the 99% analysis. CONCLUSIONS: In TSA, a meta-analysis pooled effect may be established to assess if the cumulative sample size is large enough. TSA can be used to add strength to the conclusions of meta-analyses; however, pre-registration of the TSA protocol is of paramount importance. This study could be useful to better understand the use of TSA as an additional statistical tool to improve meta-analysis quality.
Background : Statistical type II error has seemed to be ignored commonly by medical researchers. To control and present a power value could be helpful to reduce this type of error and to improve a quality of scientific decision making. We performed the post-hoc survey of the power of the negative results in Korean Journal of Anesthesiology (KJA). Methods : One Hundred nineteen articles with negative results published in KJA during a year of 1997 were selected. We collected the numbers of the sample size and calculated the power of the given negative result only when applicable. And each author's attitude to negative results was taken by arbitrary criteria. Results : Median sample size of these negative results was 16 12 (median interquartile range). We can calculate the power only in 43 articles of 119 negative results. Median power is 18.0% (interquartile range 26.0). In thirty six articles (83.8% of 43) the powers are proved to be under 80.0%. And 22 articles (51.2% of 43) have the powers even under 20.0%. We couldn't find any author who included either power or effect size in the article, and there was only one article in which its authors considered their inadequate number of sample size. Conclusions : We conclude that authors of KJA tend to ignore statistical type II error. In 119 negative results published in KJA during 1997, the calculated powers were very low and were not reported in the text. (Korean J Anesthesiol 1999; 36: 286∼292)
Back to table of contents Previous article Next article CommentaryFull AccessMental Health Response to the COVID-19 Outbreak in ChinaJunying Zhou, M.D., Ph.D., Liu Liu, M.D., Pei Xue, M.D., Xiaorong Yang, B.N., Xiangdong Tang, M.D., Ph.D.Junying Zhou, M.D., Ph.D., Liu Liu, M.D., Pei Xue, M.D., Xiaorong Yang, B.N., Xiangdong Tang, M.D., Ph.D.Published Online:7 May 2020https://doi.org/10.1176/appi.ajp.2020.20030304AboutSectionsPDF/EPUB ToolsAdd to favoritesDownload CitationsTrack Citations ShareShare onFacebookTwitterLinked InEmail Transmission of the 2019 novel coronavirus (COVID-19) (1) has now widely and rapidly spread around the world. On March 11, 2020, the World Health Organization announced that COVID-19 is a pandemic (2). The rapid transmission and mortality risk of the COVID-19 infection may increase the risk of mental health problems among healthy individuals in the general public and worsen preexisting psychiatric problems in psychiatric patients, although data are still being gathered. A constellation of difficult feelings and psychological distress, including panic, worries, and depression, could be triggered by the fear of possible infection, being quarantined at hospitals and home, social isolation, and even the shortage of protective gear.A number of mental health surveys associated with the COVID-19 outbreak are being conducted in different vulnerable populations, which include infected patients, medical staff, students, and the general population. Liu et al. have reported results from a multicenter survey conducted among 1,563 medical staff members and found that the prevalence of depression and anxiety was 51% and 45%, respectively (3). So far, data on the mental health repercussions of the COVID-19 pandemic in outpatient populations have not been available. Thus, we conducted a questionnaire survey, from February 25 to March 9, 2020, among outpatients who sought care in the Departments of Psychiatry, Neurology, and Sleep Medicine in West China Hospital of Sichuan University (Chengdu, China). A self-report questionnaire was completed by outpatients, who provided consent, via the WeChat-based survey program Questionnaire Star. A total of 2,065 out of 3,441 patients completed the survey, including 589 new patients and 1,476 existing patients. The prevalence rates of mental health problems related to the COVID-19 outbreak, including anxiety (defined as a total score ≥5 on the Generalized Anxiety Disorder 7-item scale), depression (defined as a total score ≥5 on the Patient Health Questionnaire 9-item scale), and insomnia (defined as a total score ≥8 on the Insomnia Severity Index), were 25.5%, 16.9%, and 26.2%, respectively. Furthermore, 20.9% of patients (N=300) with preexisting psychiatric disorders (N=1,434) reported a deterioration of their mental health condition related to the pandemic. In particular, transportation restrictions, isolation at home, and fear of cross-infection in hospitals have inevitably become major concerns and barriers to treatment for these patients during the outbreak. Our survey also showed that 24.5% of new patients, including those with anxiety (N=46), depression (N=37), insomnia (N=79), and psychosis (N=21), could not receive timely diagnoses and treatment. Similarly, 22.0% of existing patients with diagnosed mental disorders, including depression, bipolar disorders, and schizophrenia (N=315), could not receive routine psychiatric care because of suspended hospital visits. Consequently, 18.1% of patients (N=259) have self-reduced medication dosages, and 17.2% of patients (N=247) stopped taking their medication because they could not gain access to prescriptions from physicians during the outbreak. As the lifetime prevalence of mental disorders is 16.6% among adults in China (4), millions of psychiatric patients may face barriers to help seeking for timely management of their mental health condition. The long-term repercussions of the viral pandemic on the management of psychiatric patients warrant further investigation. Nonetheless, our data reiterate the importance of implementing appropriate mental health care measures in the face of the COVID-19 pandemic.In response to the COVID-19 outbreak, there have been ongoing measures and concerted efforts in China that emphasize the importance of dealing with the potentially concurrent mental health crisis. On January 26, 2020, the National Health Commission of China released principles for emergency psychological crisis intervention for the COVID-19 pandemic (5). Mental health hotlines were quickly established across China and provided the public with counseling and psychological services. The telephone and Internet have been widely used to deliver mental health care services, and social media platforms (e.g., WeChat, Weibo) have been used to share strategies, guidelines, and education programs for managing potential mental distress. In addition, a series of self-help handbooks for psychological care associated with COVID-19 have been published by the China Association for Mental Health, medical institutions, and universities.Furthermore, a number of hospitals in China have initiated telemedicine services for patients in need during the outbreak of COVID-19. On January 26, 2020, West China Hospital of Sichuan University, as one of the leading hospitals in China, opened a free online outpatient service involving more than 100 medical doctors across specialties. This online outpatient service was created mainly to provide prescriptions to existing patients and to offer consultation to new patients. Our hospital collaborated with commercial courier services to deliver medication to patients' homes at no cost. To date, thousands of patients have received health care provided by this online outpatient service. Interestingly, only 7.4% of patients with mental disorders (N=136) in our survey have sought online help for medical care. Thus, there is a need to promote online mental health care services across China to manage mental health problems during the pandemic.The long-term outcomes of the mental health interventions in both community and hospital settings need further evaluation to determine how we can ameliorate the negative effects of viral outbreaks in the general public, especially among vulnerable patients with mental health problems.Sleep Medicine Center (Zhou, Xue, Tang), Department of Anesthesiology, Translational Neuroscience Center (Liu), and Outpatient Department (Yang), West China Hospital, Sichuan University, Chengdu, China.Send correspondence to Dr. Zhou ([email protected]).The authors report no financial relationships with commercial interests.The authors thank the clinic nurses in the Departments of Psychiatry, Neurology, and Sleep Medicine, West China Hospital, Sichuan University.References1 Lu R, Zhao X, Li J, et al.: Genomic characterisation and epidemiology of 2019 novel coronavirus: implications for virus origins and receptor binding. Lancet 2020; 395:565–574Crossref, Medline, Google Scholar2 World Health Organization (WHO): WHO director-general's opening remarks at the media briefing on COVID-19: 11 March 2020 (https://www.who.int/dg/speeches/detail/who-director-general-s-opening-remarks-at-the-media-briefing-on-covid-19---11-march-2020)Google Scholar3 Liu S, Yang L, Zhang C, et al.: Online mental health services in China during the COVID-19 outbreak. Lancet Psychiatry 2020; 7:e17–e18Crossref, Medline, Google Scholar4 Huang Y, Wang Y, Wang H, et al.: Prevalence of mental disorders in China: a cross-sectional epidemiological study. 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COVID-19 Among University in the October 2020 | Frontiers in Psychiatry, Vol. pandemic and mental health review of the and Vol. and to the COVID-19 crisis in the of Psychiatric Research, Vol. of COVID-19 on Youth Mental Health, and A of and de la COVID-19 la de et adolescents un et July 2020 | The Journal of Psychiatry, Vol. No. Network Analysis of During the COVID-19 October 2020 | Frontiers in Psychology, Vol. of suicide during and after the COVID ‐19 September 2020 | World Psychiatry, Vol. 19, No. psychological and mental impact of coronavirus disease 2019 (COVID-19) on medical staff and general public A systematic review and Research, Vol. changes during COVID-19 and the potential A June 2020 | Journal of Health Psychology, Vol. 25, No. and July 2020 | Journal of Psychiatry, Vol. No. COVID-19-Pandemie die und Psychotherapie, Vol. No. 2019 (COVID-19) and Psychiatric in Anxiety and Journal of Medicine, Vol. 2, No. of COVID-19 on Mental Health in the September 2020 | Journal of Internet Research, Vol. 22, No. an Outpatient Psychiatric to During the COVID-19 Pandemic: A October 2020 | Journal of Internet Research, Vol. 22, No. disorders in people infected with the coronavirus September 2020 | Journal of Public Health, Vol. No. 4 July authors thank the clinic nurses in the Departments of Psychiatry, Neurology, and Sleep Medicine, West China Hospital, Sichuan April 2020 online May 2020 in 1 July 2020
BACKGROUND: Sevoflurane is an inhaled volatile anaesthetic that is widely used in paediatric anaesthetic practice. Since its introduction, postoperative behavioural disturbance known as emergence agitation (EA) or emergence delirium (ED) has been recognized as a problem that may occur during recovery from sevoflurane anaesthesia. For the purpose of this systematic review, EA has been used to describe this clinical entity. A child with EA may be restless, may cause self-injury or may disrupt the dressing, surgical site or indwelling devices, leading to the potential for parents to be dissatisfied with their child's anaesthetic. To prevent such outcomes, the child may require pharmacological or physical restraint. Sevoflurane may be a major contributing factor in the development of EA. Therefore, an evidence-based understanding of the risk/benefit profile regarding sevoflurane compared with other general anaesthetic agents and adjuncts would facilitate its rational and optimal use. OBJECTIVES: To compare sevoflurane with other general anaesthetic (GA) agents, with or without pharmacological or non-pharmacological adjuncts, with regard to risk of EA in children during emergence from anaesthesia. The primary outcome was risk of EA; secondary outcome was agitation score. SEARCH METHODS: We searched the following databases from the date of inception to 19 January 2013: CENTRAL, Ovid MEDLINE, Ovid EMBASE, the Cumulative Index to Nursing and Allied Health Literature (CINAHL) (EBSCOhost), Evidence-Based Medicine Reviews (EBMR) and the Web of Science, as well as the reference lists of other relevant articles and online trial registers. SELECTION CRITERIA: We included all randomized (or quasi-randomized) controlled trials investigating children < 18 years of age presenting for general anaesthesia with or without surgical intervention. We included any study in which a sevoflurane anaesthetic was compared with any other GA, and any study in which researchers investigated adjuncts (pharmacological or non-pharmacological) to sevoflurane anaesthesia compared with no adjunct or placebo. DATA COLLECTION AND ANALYSIS: Two review authors independently searched the databases, decided on inclusion eligibility of publications, ascertained study quality and extracted data. They then resolved differences between their results by discussion. Data were entered into RevMan 5.2 for analyses and presentation. Comparisons of the risk of EA were presented as risk ratios (RRs) with 95% confidence intervals (CIs). Sevoflurane is treated as the control anaesthesia in this review. Sensitivity analyses were performed as appropriate, to exclude studies with a high risk of bias and to investigate heterogeneity. MAIN RESULTS: We included 158 studies involving 14,045 children. Interventions to prevent EA fell into two broad groups. First, alternative GA compared with sevoflurane anaesthesia (69 studies), and second, use of an adjunct with sevoflurane anaesthesia versus sevoflurane without an adjunct (100 studies). The overall risk of bias in included studies was low. The overall Grades of Recommendation, Assessment, Development and Evaluation Working Group (GRADE) assessment of the quality of the evidence was moderate to high. A wide range of EA scales were used, as were different levels of cutoff, to determine the presence or absence of EA. Some studies involved children receiving potentially inadequate or no analgesia intraoperatively during painful procedures.Halothane (RR 0.51, 95% CI 0.41 to 0.63, 3534 participants, high quality of evidence) and propofol anaesthesia were associated with a lower risk of EA than sevoflurane anaesthesia. Propofol was effective when used throughout anaesthesia (RR 0.35, 95% CI 0.25 to 0.51, 1098 participants, high quality of evidence) and when used only during the maintenance phase of anaesthesia after sevoflurane induction (RR 0.59, 95% CI 0.46 to 0.76, 738 participants, high quality of evidence). No clear evidence was found of an effect on risk of EA of desflurane (RR 1.46, 95% CI 0.92 to 2.31, 408 participants, moderate quality of evidence) or isoflurane (RR 0.76, 95% CI 0.46 to 1.23, 379 participants, moderate quality of evidence) versus sevoflurane.Compared with no adjunct, effective adjuncts for reducing the risk of EA during sevoflurane anaesthesia included dexmedetomidine (RR 0.37, 95% CI 0.29 to 0.47, 851 participants, high quality of evidence), clonidine (RR 0.45, 95% CI 0.31 to 0.66, 739 participants, high quality of evidence), opioids, in particular fentanyl (RR 0.37, 95% CI 0.27 to 0.50, 1247 participants, high quality of evidence) and a bolus of propofol (RR 0.58, 95% CI 0.38 to 0.89, 394 participants, moderate quality of evidence), ketamine (RR 0.30, 95% CI 0.13 to 0.69, 231 participants, moderate quality of evidence) or midazolam (RR 0.57, 95% CI 0.41 to 0.81, 116 participants, moderate quality of evidence) at the end of anaesthesia. Midazolam oral premedication (RR 0.81, 95% CI 0.59 to 1.12, 370 participants, moderate quality of evidence) and parental presence at emergence (RR 0.91, 95% CI 0.51 to 1.60, 180 participants, moderate quality of evidence) did not reduce the risk of EA.One or more factors designated as high risk of bias were noted in less than 10% of the included studies. Sensitivity analyses of these studies showed no clinically relevant changes in the risk of EA. Heterogeneity was significant with respect to these comparisons: halothane; clonidine; fentanyl; midazolam premedication; propofol 1 mg/kg bolus at end; and ketamine 0.25 mg/kg bolus at end of anaesthesia. With investigation of heterogeneity, the only clinically relevant changes to findings were seen in the context of potential pain, namely, the setting of adenoidectomy/adenotonsillectomy (propofol bolus; midazolam premedication) and the absence of a regional block (clonidine). AUTHORS' CONCLUSIONS: Propofol, halothane, alpha-2 agonists (dexmedetomidine, clonidine), opioids (e.g. fentanyl) and ketamine reduce the risk of EA compared with sevoflurane anaesthesia, whereas no clear evidence shows an effect for desflurane, isoflurane, midazolam premedication and parental presence at emergence. Therefore anaesthetists can consider several effective strategies to reduce the risk of EA in their clinical practice. Future studies should ensure adequate analgesia in the control group, for which pain may be a contributing or confounding factor in the diagnosis of EA. Regardless of the EA scale used, it would be helpful for study authors to report the risk of EA, so that this might be included in future meta-analyses. Researchers should also consider combining effective interventions as a multi-modal approach to further reduce the risk of EA.
Surgical InfectionsVol. 21, No. 3 Letter to the EditorAnesthesia Procedure of Emergency Operation for Patients with Suspected or Confirmed COVID-19Xianjie Wen and Yiqun LiXianjie WenDepartment of Pain Management, the First Affiliated Hospital of Jinan University, Guangzhou, Guangdong Province, China.Department of Anesthesiology, the Second People's Hospital of Foshan City, Foshan, Guangdong Province, China.Search for more papers by this author and Yiqun LiAddress correspondence to: Dr. Yiqun Li, Department of Orthopaedics, The Second People's Hospital of Foshan City, Foshan, Guangdong Province, China E-mail Address: [email protected]Department of Orthopaedics, the Second People's Hospital of Foshan City, Foshan, Guangdong Province, China.Search for more papers by this authorPublished Online:19 Mar 2020https://doi.org/10.1089/sur.2020.040AboutSectionsView articleView Full TextPDF/EPUB Permissions & CitationsPermissionsDownload CitationsTrack CitationsAdd to favorites Back To Publication ShareShare onFacebookXLinked InRedditEmail View article"Anesthesia Procedure of Emergency Operation for Patients with Suspected or Confirmed COVID-19." 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Russian Federation of anesthesiologists and reanimatologists guidelines26 February 2021 | Annals of Critical Care, No. 1-SCOVID-19 Detection via Wavelet Entropy and Biogeography-Based Optimization12 December 2020A Protocol for Performing Reconstructive Microsurgery on Patients With COVID-19Plastic Surgical Nursing, Vol. 41, No. 1Diagnostics, Vol. 11, No. 9Peri-operative and anesthesia considerations for patient recovered from COVID-19 scheduled for radical cancer surgeryBali Journal of Anesthesiology, Vol. 5, No. 2PERIOPERATIVE NURSING CARE IN CASES REQUIRING EMERGENCY SURGERY IN COVID-19 INFECTED PATIENTS25 December 2020 | International Journal of Health Services Research and Policy, Vol. 5, No. 3Introducing the “Corona Curtain”: an innovative technique to prevent airborne COVID-19 exposure during emergent intubations13 May 2020 | Patient Safety in Surgery, Vol. 14, No. 1The COVID-19 Pandemic and Plastic Surgery: Literature Review, Ethical Analysis, and Proposed Guidelines7 February 2020 | Plastic & Reconstructive Surgery, Vol. 146, No. 4Developing a holistic contingency plan: Challenges and dilemmas for cancer patients during the COVID‐1920 July 2020 | Cancer Medicine, Vol. 9, No. 17Anesthesia and intensive care for patients with COVID-19. 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At the outbreak of World War II (WWII), anesthesiology was struggling to establish itself as a medical specialty. The battlefield abruptly exposed this young specialty to the formidable challenge of mass casualties, with an urgent need to provide proper fluid resuscitation, airway management, mechanical ventilation, and analgesia to thousands. But while Europe was suffering under the Nazi boot, anesthesia was preparing to rise to the challenge posed by the impending war. While war brings death and destruction, it also opens the way to medical advances. The aim of this study is to measure the evolution of anesthesia owing to WWII. We conducted a retrospective observational bibliometric study involving a quantitative and statistical analysis of publications. The following 7 journals were selected to cover European and North American anesthesia-related publications: Anesthesia & Analgesia, the British Journal of Anaesthesia, Anesthesiology, Schmerz-Narkose-Anaesthesie, Surgery, La Presse Médicale, and The Military Surgeon (later Military Medicine). Attention was focused on journal volumes published between 1920 and 1965. After reviewing the literature, we selected 12 keywords representing important advances in anesthesiology since 1920: "anesthesia," "balanced anesthesia," "barbiturates," "d-tubocurarine," "endotracheal intubation," "ether," "lidocaine," "morphine," "spinal anesthesia," "thiopental," "transfusion," and "trichloroethylene." Titles of original articles from all selected journals editions between 1920 and 1965 were screened for the occurrence of 1 of the 12 keywords. A total of 26,132 original article titles were screened for the occurrence of the keywords. A total of 1815 keywords were found. Whereas Anesthesia & Analgesia had the highest keyword occurrence (493 citations), Schmerz-Narkose-Anaesthesie had the lowest (38 citations). The number of publications of the 12 keywords was significantly higher in the postwar than in the prewar period (65% and 35%, respectively; P < .001). Not surprisingly, the anesthesiology journals have a higher occurrence of keywords than those journals covering other specialties. The overall occurrence of keywords also showed peaks during other major conflicts, namely the Spanish Civil War (1936-1939), the Korean War (1950-1953), and the Vietnam War (1955-1975). For the first time, this study demonstrates statistically the impact of WWII on the progress of anesthesiology. It also offers an objective record of the chronology of the major advances in anesthesiology before and after the conflict. While the war arguably helped to enhance anesthesiology as a specialty, in return anesthesiology helped to heal the wounds of war.
Rankings of scholarly journals based on citation data are often met with skepticism by the scientific community. Part of the skepticism is due to disparity between the common perception of journals' prestige and their ranking based on citation counts. A more serious concern is the inappropriate use of journal rankings to evaluate the scientific influence of authors. This paper focuses on analysis of the table of cross-citations among a selection of Statistics journals. Data are collected from the Web of Science database published by Thomson Reuters. Our results suggest that modelling the exchange of citations between journals is useful to highlight the most prestigious journals, but also that journal citation data are characterized by considerable heterogeneity, which needs to be properly summarized. Inferential conclusions require care in order to avoid potential over-interpretation of insignificant differences between journal ratings. Comparison with published ratings of institutions from the UK's Research Assessment Exercise shows strong correlation at aggregate level between assessed research quality and journal citation `export scores' within the discipline of Statistics.
We compare the network of aggregated journal-journal citation relations provided by the Journal Citation Reports (JCR) 2012 of the Science and Social Science Citation Indexes (SCI and SSCI) with similar data based on Scopus 2012. First, global maps were developed for the two sets separately; sets of documents can then be compared using overlays to both maps. Using fuzzy-string matching and ISSN numbers, we were able to match 10,524 journal names between the two sets; that is, 96.4% of the 10,936 journals contained in JCR or 51.2% of the 20,554 journals covered by Scopus. Network analysis was then pursued on the set of journals shared between the two databases and the two sets of unique journals. Citations among the shared journals are more comprehensively covered in JCR than Scopus, so the network in JCR is denser and more connected than in Scopus. The ranking of shared journals in terms of indegree (that is, numbers of citing journals) or total citations is similar in both databases overall (Spearman's \r{ho} > 0.97), but some individual journals rank very differently. Journals that are unique to Scopus seem to be less important--they are citing shared journals rather than bein
BACKGROUND: Detailed, comprehensive, and timely reporting on population health by underlying causes of disability and premature death is crucial to understanding and responding to complex patterns of disease and injury burden over time and across age groups, sexes, and locations. The availability of disease burden estimates can promote evidence-based interventions that enable public health researchers, policy makers, and other professionals to implement strategies that can mitigate diseases. It can also facilitate more rigorous monitoring of progress towards national and international health targets, such as the Sustainable Development Goals. For three decades, the Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) has filled that need. A global network of collaborators contributed to the production of GBD 2021 by providing, reviewing, and analysing all available data. GBD estimates are updated routinely with additional data and refined analytical methods. GBD 2021 presents, for the first time, estimates of health loss due to the COVID-19 pandemic. METHODS: The GBD 2021 disease and injury burden analysis estimated years lived with disability (YLDs), years of life lost (YLLs), disability-adjusted life-years (DALYs), and healthy life expectancy (HALE) for 371 diseases and injuries using 100 983 data sources. Data were extracted from vital registration systems, verbal autopsies, censuses, household surveys, disease-specific registries, health service contact data, and other sources. YLDs were calculated by multiplying cause-age-sex-location-year-specific prevalence of sequelae by their respective disability weights, for each disease and injury. YLLs were calculated by multiplying cause-age-sex-location-year-specific deaths by the standard life expectancy at the age that death occurred. DALYs were calculated by summing YLDs and YLLs. HALE estimates were produced using YLDs per capita and age-specific mortality rates by location, age, sex, year, and cause. 95% uncertainty intervals (UIs) were generated for all final estimates as the 2·5th and 97·5th percentiles values of 500 draws. Uncertainty was propagated at each step of the estimation process. Counts and age-standardised rates were calculated globally, for seven super-regions, 21 regions, 204 countries and territories (including 21 countries with subnational locations), and 811 subnational locations, from 1990 to 2021. Here we report data for 2010 to 2021 to highlight trends in disease burden over the past decade and through the first 2 years of the COVID-19 pandemic. FINDINGS: Global DALYs increased from 2·63 billion (95% UI 2·44-2·85) in 2010 to 2·88 billion (2·64-3·15) in 2021 for all causes combined. Much of this increase in the number of DALYs was due to population growth and ageing, as indicated by a decrease in global age-standardised all-cause DALY rates of 14·2% (95% UI 10·7-17·3) between 2010 and 2019. Notably, however, this decrease in rates reversed during the first 2 years of the COVID-19 pandemic, with increases in global age-standardised all-cause DALY rates since 2019 of 4·1% (1·8-6·3) in 2020 and 7·2% (4·7-10·0) in 2021. In 2021, COVID-19 was the leading cause of DALYs globally (212·0 million [198·0-234·5] DALYs), followed by ischaemic heart disease (188·3 million [176·7-198·3]), neonatal disorders (186·3 million [162·3-214·9]), and stroke (160·4 million [148·0-171·7]). However, notable health gains were seen among other leading communicable, maternal, neonatal, and nutritional (CMNN) diseases. Globally between 2010 and 2021, the age-standardised DALY rates for HIV/AIDS decreased by 47·8% (43·3-51·7) and for diarrhoeal diseases decreased by 47·0% (39·9-52·9). Non-communicable diseases contributed 1·73 billion (95% UI 1·54-1·94) DALYs in 2021, with a decrease in age-standardised DALY rates since 2010 of 6·4% (95% UI 3·5-9·5). Between 2010 and 2021, among the 25 leading Level 3 causes, age-standardised DALY rates increased most substantially for anxiety disorders (16·7% [14·0-19·8]), depressive disorders (16·4% [11·9-21·3]), and diabetes (14·0% [10·0-17·4]). Age-standardised DALY rates due to injuries decreased globally by 24·0% (20·7-27·2) between 2010 and 2021, although improvements were not uniform across locations, ages, and sexes. Globally, HALE at birth improved slightly, from 61·3 years (58·6-63·6) in 2010 to 62·2 years (59·4-64·7) in 2021. However, despite this overall increase, HALE decreased by 2·2% (1·6-2·9) between 2019 and 2021. INTERPRETATION: Putting the COVID-19 pandemic in the context of a mutually exclusive and collectively exhaustive list of causes of health loss is crucial to understanding its impact and ensuring that health funding and policy address needs at both local and global levels through cost-effective and evidence-based interventions. A global epidemiological transition remains underway. Our findings suggest that prioritising non-communicable disease prevention and treatment policies, as well as strengthening health systems, continues to be crucially important. The progress on reducing the burden of CMNN diseases must not stall; although global trends are improving, the burden of CMNN diseases remains unacceptably high. Evidence-based interventions will help save the lives of young children and mothers and improve the overall health and economic conditions of societies across the world. Governments and multilateral organisations should prioritise pandemic preparedness planning alongside efforts to reduce the burden of diseases and injuries that will strain resources in the coming decades. FUNDING: Bill & Melinda Gates Foundation.
An exploratory, descriptive analysis is presented of the national orientation of scientific, scholarly journals as reflected in the affiliations of publishing or citing authors. It calculates for journals covered in Scopus an Index of National Orientation (INO), and analyses the distribution of INO values across disciplines and countries, and the correlation between INO values and journal impact factors. The study did not find solid evidence that journal impact factors are good measures of journal internationality in terms of the geographical distribution of publishing or citing authors, as the relationship between a journal's national orientation and its citation impact is found to be inverse U-shaped. In addition, journals publishing in English are not necessarily internationally oriented in terms of the affiliations of publishing or citing authors; in social sciences and humanities also USA has their nationally oriented literatures. The paper examines the extent to which nationally oriented journals entering Scopus in earlier years, have become in recent years more international. It is found that in the study set about 40 per cent of such journals does reveal traces of internati
During the last decade, we have witnessed a sustained growth of South Korea's research output in terms of the world share of publications in the Science Citation Index database. However, Korea's citation performance is not yet as competitive as publication performance. In this study, the authors examine the intellectual structure of Korean S&T field based on social network analysis of journal-journal citation data using the ten Korean SCI journals as seed journals. The results reveal that Korean SCI journals function more like publication places, neither research channels nor information sources among national scientists. Thus, these journals may provide Korean scholars with access to international scientific communities by facilitating the respective entry barriers. However, there are no citation relations based on their Korean background. Furthermore, we intend to draw some policy implications which may be helpful to increase Korea's research potential.
This study examines the social media uptake of scientific journals on two different platforms - X and WeChat - by comparing the adoption of X among journals indexed in the Science Citation Index-Expanded (SCIE) with the adoption of WeChat among journals indexed in the Chinese Science Citation Database (CSCD). The findings reveal substantial differences in platform adoption and user engagement, shaped by local contexts. While only 22.7% of SCIE journals maintain an X account, 84.4% of CSCD journals have a WeChat official account. Journals in Life Sciences & Biomedicine lead in uptake on both platforms, whereas those in Technology and Physical Sciences show high WeChat uptake but comparatively lower presence on X. User engagement on both platforms is dominated by low-effort interactions rather than more conversational behaviors. Correlation analyses indicate weak-to-moderate relationships between bibliometric indicators and social media metrics, confirming that online engagement reflects a distinct dimension of journal impact, whether on an international or a local platform. These findings underscore the need for broader social media metric frameworks that incorporate locally dom
We present an analysis of the papers published in the journals Nature and Science in the years from 2006 to 2010. During this period, a total of 7788 papers were published in the two journals. This includes 544 astronomy papers that comprise 7.0% of the papers in `all' research fields and 18.9% of those in the fields of `physical sciences'. The sub-fields of research of the astronomy papers are distributed, in descending order of number of papers, in Solar System, stellar astronomy, galaxies and the universe, the Milky Way Galaxy, and exoplanets. The observational facilities used for the studies are mainly ground-based telescopes (31.1%), spacecrafts (27.0%), and space telescopes (22.8%), while 16.0% of papers did not use any noticeable facilities and 1.7% used other facilities. Korean scientists have published 86 papers (33 in Nature and 53 in Science), which is 1.10% of all the papers (N=7788) in the two journals. The share of papers by Korean astronomers among the scientific papers by Koreans is 8.14%, slightly higher than the contribution of astronomy papers (7.0%) in both journals.
The journal structure in the China Scientific and Technical Papers and Citations Database (CSTPCD) is analysed from three perspectives: the database level, the specialty level and the institutional level (i.e., university journals versus journals issued by the Chinese Academy of Sciences). The results are compared with those for (Chinese) journals included in the Science Citation Index. The frequency of journal-journal citation relations in the CSTPCD is an order of magnitude lower than in the SCI. Chinese journals, especially high-quality journals, prefer to cite international journals rather than domestic ones. However, Chinese journals do not get an equivalent reception from their international counterparts. The international visibility of Chinese journals is low, but varies among fields of science. Journals of the Chinese Academy of Sciences (CAS) have a better reception in the international scientific community than university journals.
Overlay journals are characterised by their articles being published on open access repositories, often already starting in their initial preprint form as a prerequisite for submission to the journal prior to initiating the peer-review process. In this study we aimed to identify currently active overlay journals and examine their characteristics. We utilised an explorative web search and contacted key service providers for additional information. The final sample consisted of 34 overlay journals. While the results show that new overlay journals have been actively established within recent years, the current presence of overlay journals remains diminutive compared to the overall number of open access journals. Most overlay journals publish articles in natural sciences, mathematics or computer sciences, and are commonly published by groups of academics rather than formal organisations. They may also rank highly within the traditional journal citation metrics. None of the investigated journals required fees from authors, which is likely related to the cost-effective aspects of the overlay publishing model. Both the growth in adoption of open access preprint repositories and researcher
Using the Scopus dataset (1996-2007) a grand matrix of aggregated journal-journal citations was constructed. This matrix can be compared in terms of the network structures with the matrix contained in the Journal Citation Reports (JCR) of the Institute of Scientific Information (ISI). Since the Scopus database contains a larger number of journals and covers also the humanities, one would expect richer maps. However, the matrix is in this case sparser than in the case of the ISI data. This is due to (i) the larger number of journals covered by Scopus and (ii) the historical record of citations older than ten years contained in the ISI database. When the data is highly structured, as in the case of large journals, the maps are comparable, although one may have to vary a threshold (because of the differences in densities). In the case of interdisciplinary journals and journals in the social sciences and humanities, the new database does not add a lot to what is possible with the ISI databases.
A number of journal classification systems have been developed in bibliometrics since the launch of the Citation Indices by the Institute of Scientific Information (ISI) in the 1960s. These systems are used to normalize citation counts with respect to field-specific citation patterns. The best known system is the so-called "Web-of-Science Subject Categories" (WCs). In other systems papers are classified by algorithmic solutions. Using the Journal Citation Reports 2014 of the Science Citation Index and the Social Science Citation Index (n of journals = 11,149), we examine options for developing a new system based on journal classifications into subject categories using aggregated journal-journal citation data. Combining routines in VOSviewer and Pajek, a tree-like classification is developed. At each level one can generate a map of science for all the journals subsumed under a category. Nine major fields are distinguished at the top level. Further decomposition of the social sciences is pursued for the sake of example with a focus on journals in information science (LIS) and science studies (STS). The new classification system improves on alternative options by avoiding the problem