objective To observe the differences between four- and single-channel recording of normal multifocal visual evoked potential (mfVEP). Methods mfVEP of 35 health individuals (70 eyes) were detected by both four- and single-channel recording with VERIS apparatus. The root mean square (RMS) value of reactive amplitude was obtained from the results of the two kinds of recording. Each stimulated patch was analyzed to compare the variational degree of each patch between the two recording methods. Responase sasymmetry coefficient (RAC) was introduced to evaluate the symmetry property between the two eyes in an individual. Results Compared with the single-channel recording,the responses of the stimulated patches of the four- channel recording were increased statistically, with most of the patches below the horizontal meridian and some of patches in the upper field, and there was distinct symmetry property between the two eyes in the same individual recorded by four-channel recording. Conclusion The four-channel recording is better than the single one and could be clinically applied and popularized.(Chin J Ocul Fundus Dis，2004，20：156-159)
Objective To observe the effect of intravenous methylprednisolone (IVMP) pulse therapy on the best corrected visual acuity (BCVA) and the number of relapses in patients with neuromyelitis optica spectrum disorder-related optic neuritis (NMOSD-ON) after total IVMP dose. MethodsA retrospective clinical study. From March 2020 to February 2023, 23 patients of 27 eyes with NMOSD-ON in Shanxi Eye Hospital were included in the study. BCVA examinations were performed on all affected eyes using the international standard visual acuity chart, which was statistically converted into logMAR visual acuity. Serum aquaporin-4 antibody (AQP4-IgG) was detected by indirect immunofluorescence assay based on cell detection technology in all patients. According to Guideline for the diagnosis and treatment of NMOSD spectrum disorders in China (2021 edition), patients were given IVMP impact therapy. Among them, 18 and 5 patients received 1 000 and 500 mg/d IVMP pulse therapy respectively for 3-5 consecutive days, followed by a reduction to 500 or 250 mg/d for 2-3 consecutive days. The average total IVMP dose during the treatment was 4 500 mg (1 500-5 250 mg). The changes in BCVA at 1 week, 1 month, 3 months, and 6 months after treatment were observed for the initial and post-treatment BCVA of ≤0.1, ＞0.1-<0.5, and ≥0.5. The changes of BCVA at 1 week and 1, 3 and 6 months after treatment were observed. The comparison of BCVA between different age, disease duration, and IVMP total dose conditions was performed using the Mann-Whitney U test. The comparison of BCVA between different relapse times was performed using the Kruskal-Wallis test. The influence of IVMP total dose on the number of relapses during the 6-month follow-up was analyzed using χ2 test. The factors affecting BCVA ≥0.5 after 6 months of IVMP treatment were analyzed by logistic regression, and the correlation between ΔlogMAR BCVA and IVMP pulse total dose was analyzed by Spearman correlation. ResultsIn 23 cases with 27 eyes, there were 3 males and 20 females. The median age was 35 years. The median duration of illness was 5 days. There were 21 (91.30%, 21/23) positive and 2 (8.70%, 2/23) negative cases of AQP4-IgG, respectively. There were 3 cases (13.04%, 3/23) with the first course of disease and 4 eyes (14.81%, 4/27). There were 20 cases (86.96%, 20/23) with recurrence course and 23 eyes (85.19%, 23/27). The median time from initial onset to the initiation of corticosteroid treatment was 7 days. During the 6-month follow-up after treatment, 5 patients (21.74%, 5/23) relapsed in 6 eyes (22.22%, 6/27), all of which were patients with initial relapse course. Among them, recurred 1 or ≥2 times in 4 (66.67%, 4/6) and 2 (33.33%, 2/6) eyes respectively. BCVA≤0.1, ＞0.1-＜0.5, ≥0.5 in 20, 4, 3 eyes and 3, 13, 11 eyes at the beginning and 6 months after treatment, respectively. There was significant difference in the number of eyes with BCVA≤0.1, ＞0.1-＜0.5 and ≥0.5 at different time after treatment (χ2=40.772, P＜0.001). The treatment effect of female patients was better than that of male patients. The patients with initial BCVA≥0.1 had more increased eye number of BCVA than those with BCVA＜0.1, the patients with first course of disease had more increased eye number of BCVA than those with recurrent course of disease, and the patients with total dose of IVMP ＞4 500 mg had less increased eye number of BCVA than those with total dose ≤4 500 mg. The differences were statistically significant (Z=?2.449, ?2.904, ?2.485, ?2.286; P=0.014, 0.004, 0.013, 0.022). Logistic regression analysis showed that the higher the initial BCVA≤0.1 and the total impact dose of IVMP, the lower the possibility of obtaining BCVA≥0.5 after treatment (odds ratio=0.069, 0.899; 95% confidence interval 0.010-0.463, 0.798-0.998; P=0.006, 0.020). Spearman correlation analysis showed that ΔlogMAR BCVA was negatively correlated with total impact dose of IVMP (rs=?0.472, P=0.013). There was no significant difference in the number of recurrence after different total doses of IVMP (P＞0.05). ConclusionsIVMP total dose ≤4 500 mg can achieve better BCVA prognosis compared with IVMP total dose ＞4 500 mg. IVMP total dose has no effect on the number of recurrences after treatment.
Objective To analyze the research hotspots and trends in the field of hyperkalemia in hemodialysis patients at home and abroad, and to provide reference for the research and prevention and control of hyperkalemia in hemodialysis patients. Methods China National Knowledge Infrastructure (CNKI) and Web of Science databases were searched by computer for literature about the hyperkalemia in hemodialysis patients published between January 1995 and January 2023. The included literature was analyzed using visualization analysis tools for visualization, including high-frequency keywords, keyword co-occurrence map, keyword emergence intensity and keyword time series prediction. Results A total of 10 275 articles were included. Among them, there were 10 036 articles from web of science and 239 articles from CNKI. The number of articles in this research field showed a trend of steady increase year by year. The United States was in a leading position in the research and development in this field, followed by China. At the same time, the research in this field presents the characteristics of multidisciplinary integration. The development trends of research hotspots in the next 5 years were risk and health education research. Conclusions The number of research articles related to hyperkalemia in hemodialysis patients is gradually increasing. Multidisciplinary approach and integration is a research hotspot and frontier in the development of hyperkalemia in hemodialysis patients both domestically and internationally.
Purpose To investigate the influence of ametropia on stereopsis and its mechanism by using the disparity evoked potential testing. Methods A new set of static random dot stereograms was utilized as a stimulation to elicit the disparity evoked potentials in 21 ametropes and 40 stereo normal subjects. Rezults The P250 wave,which was related to stereoscopic stimulation in ametropes,was recorded in both the ametropes and emetropic stereo normal persons in this series,and the characteristic changes of P250 wave with increasing visual disparity in ametropes were similar to those in normal subjects.The differences of mean amplitudes and latencies of P250 waves between myopes and hyperopes were not significant. Conclusion Ametropia in full correction dose not significanly affect the function of stereopsis. (Chin J Ocul Fundus Dis,1998,14:225-227)
ObjectiveTo understand the authors, countries/regions, institutions, journals and hot topics about the application research of indocyanine green (ICG) in hepatobiliary surgery. MethodsThis study conducted a bibliometric analysis of the literatures on the application of ICG in hepatobiliary surgery in the Web of Science Core Collection from 2008 to 2024. CiteSpace software was used to evaluate and visualize collaborative networks and hot topics. ResultsA total of 2 267 literatures were included in this study, with a citation frequency of 50 463 times. The literatures from Japan accounted for the highest proportion, and most of the papers (13.50%) were published by Kokudo N. In China, Tian Jie had published the largest number of papers (33 articles). The research hotspots focused on liver resection, bile duct surgery, liver transplantation, and tumors, with recent hotspots including “liver preservation” and “rejection” frequently appearing. ConclusionThis study aims to present the overall state and trend of the application research of ICG in hepatobiliary surgery through data capture and induction, and providing valuable references for clinicians and researchers.
Objective To analyze the research progress and current situation in the field of chemotherapy-induced premature ovarian failure by bibliometrics, so as to provide scientific and efficient research path for researchers. Methods All the literature on chemotherapy-induced premature ovarian failure from 2015 to 2024 was retrieved from the Web of Science Core Collection. CiteSpace and VOSviewer software were used to conduct bibliometric analyses of authors, institutions, keywords, co-cited documents, etc., and to draw the relational graphs. Results A total of 567 papers were included. The annual research output increased slightly, and the number of papers published by Chinese researchers ranked first. The 49 selected keywords were divided into 11 clusters, and the emerging keywords showed that the research hotspots in recent years focused on more in-depth mechanism studies, such as primary ovarian insufficiency and fertility preservation in premenopausal patients, which might continue to be research hotspots. Conclusions In recent years, the research heat of chemotherapy-induced premature ovarian failure has been increasing, and Chinese scholars have made outstanding contributions, however, it is necessary to further strengthen the scientific research cooperation among researchers. Fertility preservation, hormone replacement therapy, in vitro transplantation may become the hotspots of future research, and the depth and refinement of research should be further promoted on the basis of multi-center and multi-disciplinary cross.
purpose To study the visual electrophysiological changes in patients with chronic glomerulonephritis. Methods The visual evoked potentials(VEP) and electroretinogram(ERG) of 26 subjects with chronic glomerulonephritis in 51 eyes were recorded. Results Ours studies showed the patients with chronic glomerulonephritis had pathologic visual electrophysiologic abnormalities.The N 75 peak latency,b wave peak latency O 1 peak latency and total amplitude of OPs in chronic glomerulonephritis patients without fundus sign showed remarkable difference. Conclusion These changes suggested visual electrophysiological examination may be valuable in early diagnosis of retinal disfunction in patients with chronic glomerulonephritis. (Chin J Ocul Fundus Dis,1998,14:162-164)
Objective To explore the global research status and trends of continuous renal replacement therapy (CRRT) based on knowledge visualization analysis. Methods Based on the Web of Science Core Collection, studies reporting CRRT research that were published between June 2014 and June 2023 were retrieved and collected after manual review. VOSviewer and CiteSpace softwares were used for bibliometric visualization analysis, including publication trends, geographical distribution characteristics, journal distribution characteristics, author contributions, citations, funding source characteristics, and keyword clustering. Results A total of 2708 papers were analyzed, with an increasing trend in the number of articles and citation frequency from 2015 to 2021. The United States was the most prolific country and France was the most influential country. The University of Pittsburgh in the United States had the highest number of publications among research institutions and showed higher motivation for inter-institutional collaboration. The University of Queensland in the Australia had the highest average citation frequency. Professor Rinaldo Bellomo of Australia was the most productive author and Professor Jeffrey Lipman was the most influential. Jason A. Roberts, Jeffrey Lipman and Claudio Ronco were the three authors who had the highest number of collaborations with other authors. Keyword cluster analysis showed that the prognosis of CRRT for renal disease was the focus of research, with hotspots of research being antibiotics, citrate accumulation, plasma replacement, lactate clearance, acute respiratory distress syndrome, and coronavirus disease 2019. Coupling analysis of the literature showed that exploring the indications for CRRT and optimizing treatment prescription were at the forefront of research. Conclusions The present study of CRRT has generally shown an upward trend in the last decade. The management and efficacy of CRRT remains a hot topic of research. Exploring the indications for CRRT and optimizing treatment prescriptions may be a popular research direction and trend in the future.
Objective To analyze the research hotspots and development trend of medical advice at home and abroad, and provide the basis for the research related to medical advice in China. Methods The China National Knowledge Infrastructure and Web of Science were searched from January 1991 to November 2023 to collect domestic and international studies on medical prescriptions. Bibliometrics and CiteSpace software were used for analysis. Results A total of 3 155 articles were included. The number of publications on medical advice reached its peak in 2013, and the trend of domestic and foreign publications was consistent; the institution with the largest number of publications in China was Tongji Hospital of Tongji Medical College of Huazhong University of Science and Technology; the top three hotspots of attention in China were rational medication use, intravenous medication dispensing center and nursing care; the top three hotspots of attention in foreign countries were care, impact, and system; the top three hotspots of attention in China were intravenous medication (centralized) dispensing center and medical prescription audit 2 emergent words emergent rate had been continued to date; foreign polst, palliative care and advance care planning 3 emergent words emergent rate had been continued to date; domestic in the past five years, the key words were quality improvement, lean management, transitional care, rationality evaluation, prescription front audit system and medication adherence; the keywords for the last five years in foreign countries were assessmen, risk factor, clincial pathway. ConclusionsDomestic research on medical prescriptions needs to pay more attention to the decision-making of doctors when they give medical prescriptions and the timely monitoring of medication errors, and based on the more mature research on medical prescriptions in foreign countries, domestic research needs to combine the concepts of computer-assisted decision-making and value-based medicine to explore in-depth the correlation between medical prescriptions and the quality of medical care and patient value. It is also needed to combine computer-assisted decision-making and the concept of value-based medicine to explore the intrinsic connection between medical advice and medical quality and patient value.
ObjectiveTo investigate the current status and hotspots in researches of gastrointestinal stromal tumor.MethodsThe literatures related to gastrointestinal stromal tumor and published from 2000 to 2019 were extracted from Web of Science Core Collection. Visualization analysis was conducted by utilizing CiteSpace and VOSviewer software based on bibliometrics methods.ResultsA total of 3 226 articles and reviews were retrieved. The number of publications increased from 2000 to 2019, from the initial 34 publications gradually increased to 241 in 2019, and the maximum number of publications was 265 in 2015. The most productive five countries in terms of publication number were: 907 in the United States, 540 in China, 522 in Japan, 219 in Germany, and 214 in Italy. Co-occurrence networks of keywords were divided into three clusters: targeted therapy, clinical management, and pathogenesis research. Co-citation analysis of literatures contained 9 clusters, and cluster #0 prognosis was the latest cluster, indicating the research frontier and tendency.ConclusionsThe United States and its domestic institutes are the pioneers. Targeted therapy, clinical management, and pathogenesis researches are the main research filed. Prognosis research may be the new research tendency, and clinical and basic researches are still hotspots in medical research.