ObjectiveTo investigate the hotspots from researches on imaging of pancreatic neuroendocrine tumor in recent five years. MethodsThe bibliographies from research literatures on imaging of pancreatic neuroendocrine tumor from 2010 to 2015 in PubMed database were downloaded. The Bicomb 2.0 bibliographies analysis software was used to count high-frequency of Mesh major topics (MJMEs). SPSS 22.0 statistical software was applied for clustering analysis with MJMEs, then to get the topic hotspots. ResultsA total of 357 literatures were screened out during the years of 2010-2015. The MJMEs which frequency > 13 were 28. Taken the 28 MJMEs into clustering analysis, then three research hotspots were clustered. ConclusionResearches on imaging of the pancreatic neuroendocrine tumor in recent five years are mainly in terms of imaging techniques, a comparative study of pathology and endoscopic ultrasonography-fine needle aspiration, imaging and disease treatment.
Objective To investigate how many hospitals can perform vitrectomy and its relationship to economic development in China.Methods Bibliometric data of retina-vitreous literatures were searched from the China National Knowledge Infrastructure (CNKI) academic databases. We used pars plana vitrectomy (PPV) as a keyword and defined address as mainland China, limited years to 1993 -2009. From those data we analyzed which hospital performed PPV. We also communicated with some hospitals by phone, email to confirm if they were performing PPV. Gross domestic product (GDP), population data and economic development ranking were extracted from the China Statistical Yearbook 2009 (National Bureau of Statistics of China). PPV carry-out rate, PPV-hospital shares and their relationships with the GDP in each regional municipality were analyzed.Results All together this study retrieved 4632 articles meet our requirements. There were 340 hospitals carrying out PPV in mainland China, located in 22 provinces, five autonomous regions and four metropolitan municipalities. The top five provinces with higher PPV carryout rate were Shandong (93,75%), Zhejiang (90,00%), Hebei province (90.00%), Jiangsu (83.33%) and Guangdong (75.00%). There was significant difference in per capita share of PPVhospitals between different cities (chi;2=181,153，P=0,000) and in the PPV carry-out rate between different cities (chi;2=749.217，P=0.000). There were 210 private eye hospitals in China,62 hospitals (18.23%) of them could perform PPV included 39 hospitals located in regionallevel cities. The coefficient correlation between PPV and GDP of different provinces was 0.842 (P=0.000). Conclusions Vitrectomy is widely performed in mainland China, but geographical distribution of PPV-performing hospitals is uneven. PPV performance is closely related with regional economic development,and private hospitals play certain roles in promoting the application of vitrectomy.
Objective To learn the bibliometric characteristics of Chinese ophthalmological papers indexed in SCI database from 2007 to 2011.Methods All the ophthalmological papers published in the source journals indexed in the SCI database from 2007 to 2011 were retrieved. The papers of first authors were manually selected for bibliometric analysis.Results The ophthalmological papers published by Chinese scholars as the first author were 478, 482, 698, 791, and 1049 from 2007 to 2011 (total 3498). The five institutions that published papers in the most were Sun Yat-sen University, Capital University of Medical Sciences, Fudan University, Hong Kong Chinese University and Shanghai Jiaotong University. The papers were distributed in 625 journals. The top five journals the papers were published in were Molecular Vision (332), International Journal of Ophthalmology (268), Investigative Ophthalmology amp; Visual Science (206), Chinese Medical Journal (109), and Graefeprime;s Archive for Clinical and Experimental Ophthalmology (104). The 3498 papers were cited 12 030 times, 3.44 times per paper. The rate of non-cited articles for 5 year,3 year and 2 year periods were 12.55%, 24.21% and 38.43% respectively. Conclusions Chinese ophthalmological papers indexed in SCI database have gradually increased. Chinese ophthalmological papers mainly originate in the affiliated hospital of universities and colleges. There are four ophthalmologic professional periodicals included in the top five in the quantity of articles.
Objective To investigate the hot topics of research on evidence-based medicine in 2002. Method To search MEDLINE for papers on evidence-based medicine published in 2002, identify high-frequency subject headings related to research on evidence-based medicine, and cluster the high-frequency subject headings according to rates they appeared in common papers. Results 545 papers, 1 554 subject headings, 30 high-frequency subject headings on evidence-based medicine, and nine clustering categories of high-frequency subject headings were identified through search. Conclusions Both high-frequency subject headings and their clustering categories suggested that “evidence-based practice guidelines and their innovation”, “evidence-based health research and health policy”, “methodology on systematic reviews and randomized clinical trials”, “method of evidence-based decision making and its application in various subjects”, were the hot topics of evidence-based medicine. They provided useful references for Chinese medical professionals to practice evidence-based medicine.
ObjectiveTo analyze the relevant literatures on the use of midline catheters in China, and to provide references for further studies of midline catheters.MethodsAll literatures related to midline catheters from the date of database establishment to February 2019 were searched in the China National Knowledge Infrastructure (CNKI), VIP Database for Chinese Technical Periodicals (VIP), Wan-Fang Database, and China Biomedical Literature Database (CBM). Bibliometric analysis methods were used to analyze the search results.ResultsTotally 47 articles related to midline catheters were recruited and the number of publications increased in recent years. About 44.68% papers were focused on introducing experiences of the operation process, nursing points, prevention and treatment of complications, and about 38.30% papers were observational studies about indwelling time of midline catheters and complications rate.ConclusionsMore and more attention has been paid to the midline catheters, but further studies with large samples and high quality are still needed, in order to provide more evidence for the application and popularization of midline catheters in China, and choose a safe, comfortable, convenient, low-cost and high-benefit intravenous infusion device for patients.
ObjectiveTo analyze the research status and hot spots of health technology assessment (HTA). MethodsDatabases including China National Knowledge Infrastructure (CNKI) and PubMed were searched to collect published studies on HTA. The software of BICOMS-2 and VOSviewer 1.6.10 was used to draw the network diagram and to conduct cluster analysis of keywords. ResultsA total of 1170 studies in Chinese and 8584 studies in English were included. The number of HTA-related publications increased annually, among which countries with the most publications were the United States, the United Kingdom, and Canada. Fudan University had the largest number of studies published in Chinese and York University had the largest number of studies published in English. The research topics mainly focused on hospital HTA, HTA decision transformation research, pharmacoeconomic evaluation, etc. The most frequent diseases were cancer and depression. Emerging keywords were real-word evidence, randomized controlled trials, cost-benefit analysis, etc. ConclusionHTA-related studies increase annually. Many HTA-related studies are performed in developed countries, such as the United States and the United Kingdom. The relevant research topics involve hospital HTA, HTA decision-making transformation research, and pharmacoeconomic evaluation. Current research focus is on the evaluation of health economics in the field of cancer based on the evidence of real-world research and randomized controlled trials.
ObjectiveTo analyze the papers in cardiovascular surgery field indexed by SCI-Expended between 2008 year and 2012 year from the authors in Chinese Mainland. MethodsWe searched Web of Science database(2008-2012)on-line and collected the papers on cardiovascular surgery written by the authors in Chinese Mainland. The data of publication time, type of article, journal name, and author name were recorded. ResultsA total of 427 papers in cardio-vascular surgery field were published from Chinese Mainland including 401 original articles, 10 conference papers, and 16 reviews. Although the number of papers has been increasing since 2008 year, the increase slowed down recently. Most of those authors came from few heart centers in Beijing, Guangdong, and Shanghai. Most of these papers were published in 7 journals in cardiovascular surgery field with low impact factor. ConclusionThe authors in Chinese Mainland in cardiovascular field should design more scientific research and improve academic level of paper with high quote rate.
ObjectiveTo explore the current status of nursing researches about catheter-related infections in recent 5 years in China, and provide reference for further research.MethodsThe China National Knowledge Infrastructure database and Wangfang database were selected to search for literature about catheter-related infections published in recent 5 years in 10 nursing journals of Statistic Source, with the terms of " catheter-related bloodstream infection” or " ventilator-associated pneumonia” or " catheter-related urinary tract infection”. Statistical analysis was conducted.ResultsA total of 216 papers were included. The number of papers was not increased year by year. In terms of the object of study, the studies on ventilator-associated pneumonia were the most, accounting for 71.3%. Only 36.5% of the studies had accurate diagnostic criteria. In terms of the type of study, experimental studies were the most (109 articles). The content was concentrated on the best practice intervention studies (149 articles). The data collection methods gave priority to active surveillance/screening, including 113 articles.ConclusionsThe present focused attention is not enough to the researches about catheter-related infections in nursing field, and rigorous design is lacking in published studies. There are only a few nursing studies about catheter-related infections with high quality and high level of evidence. The quantity and quality of nursing researches about catheter-related infections still need to be improved. Nurses should pay more attention to the control and prevention of catheter-related infections, and should improve their research capacity.