1.Visualization analysis of the current status and trend of researches related to cerebral hemorrhage surgery based on CiteSpace and VOSviewer
Junhong ZENG ; Taotao SHEN ; Guofeng WU ; Jing OUYANG ; Jiaqin RAO ; Shasha LUO ; Yizhi ZHANG ; Cui XIONG ; Ying GU
Chinese Journal of Cerebrovascular Diseases 2024;21(7):455-466
Objective To summarize and explore the current state,hotspots,and trends in the field of surgical treatment for intracerebral hemorrhage(ICH)over the past decade through a bibliometric and visualization analysis of relevant literature.Methods Relevant Chinese and English literature on the surgical treatment of ICH,published from January 1,2014 to April 1,2024,was retrieved and screened from CNKI and Web of Science databases.Visualization analysis was conducted using CiteSpace,VOSviewer,and other software to analyze the number of published papers,authors,countries,institutions,etc.Social network analysis diagrams of authors,keyword clustering network analysis diagrams,keyword burst strength,and keyword timeline maps were also utilized.Results(1)A total of 3 456 relevant papers were included,with 2 173 in Chinese and 1 283 in English.From 2014 to 2021,the annual number of Chinese publications on ICH surgery was higher than that of English publications,but the number of Chinese publications began to decline from 2016.The number of English publications showed an overall increasing trend.(2)A total of 6 367 authors were identified from the English literature,with notable collaboration networks led by researchers such as Mocco J,Hanley DF,Ziai WC,You C,and Tang ZP.The Chinese literature included 6 522authors,with prominent collaboration networks led by Wang LK,Cai Q,Ku HB,Zhang S,and Zhu SQ.(3)Analysis of the countries involved in the English literature showed that 31 countries participated in research on ICH surgery,with China leading in the number of publications(505),followed by the United States(330)and Germany(106).The top three countries in centrality were the United States(0.32),China(0.16),and Canada(0.11).The top three institutions in English literature publications were Johns Hopkins University(51 papers),Ohio State University(39 papers),and Harvard University(38 papers).In China,Sichuan University(32 papers),Huazhong University of Science and Technology(30 papers),and Capital Medical University(27 papers)had multiple English publications;Wuhan University People's Hospital(15 papers),Affiliated Hospital of Guizhou Medical University(13 papers),and Affiliated Hospital of Yan'an University(13 papers)had multiple Chinese publications.There was close collaboration among research institutions in the English literature,whereas Chinese researchers often established research teams within their medical units with relatively less collaboration between teams.(4)Research on ICH surgery primarily focused on surgical methods,complications,and comprehensive perioperative treatment.Research hotspots included hypertensive ICH,minimally invasive surgical techniques,and perioperative management and treatment."neuroendoscopy"was the most recent emergent keyword in Chinese literature with high centrality and the strongest burst strength,while"randomized trial"had the highest burst strength in English literature.Research trends included the integration of artificial intelligence with minimally invasive techniques to optimize ICH surgery management and treatment strategies,analysis of risk factors,and evaluation of imaging value.Conclusions Over the past decade,the overall publication volume on the surgical treatment of ICH has been in a stable development phase,with research directions covering surgical techniques,diagnosis and treatment,evaluation,and management.Core research teams led by key authors were the main contributors to the publications.Future research hotspots and trends in ICH surgery may include the optimization of surgical techniques,complication management,large-scale multicenter clinical trials and integration of artificial intelligence with minimally invasive techniques.
2.To analyze the imaging features of thyroid papillary carcinoma diagnosed by CEUS and the diagnostic efficacy of CEUS in cervical lymph node metastasis
Qiudong XU ; Guofeng LI ; Qian SHEN ; Qiaolu SHEN ; Linhua ZHANG ; Luna SHEN ; Weiwei CAI
Chinese Journal of Endocrine Surgery 2023;17(4):445-449
Objective:To analyze the diagnostic performance of contrast-enhanced ultrasound (CEUS) in the diagnosis of papillary thyroid carcinoma (PTC) and related parameters in the diagnosis of cervical lymph node metastasis.Methods:The clinical data of 130 patients who underwent ultrasonography in Ningbo Hospital of Traditional Chinese Medicine from Jan. 2019 to Jan. 2022 were retrospectively analyzed. All patients received contrast-enhanced ultrasonography and postoperative pathological examination. According to the pathological diagnosis of benign and malignant tumors, they were divided into PTC group and benign nodule group. In the PTC group, there were 46 males and 40 females, aging 51.79±5.01 years old, ranging from 32 to 63 years old; In the nodule group, there were 25 males and 19 females, aging 52.05±4.89 years old, ranging from 33 to 64 years old. According to the presence or absence of cervical LNM, they were divided into a metastasis group of 31 cases, 17 males and 14 females; age (51.69±6.14 years), ranging from 36 to 63 years; 55 cases in the non-transfer group, 29 males and 26 females, aging (51.75±6.18) years, ranging from 36 to 62 years. Comparative analysis of different nodule properties, presence or absence of LNM, different lesion diameters in imaging manifestations and time-intensity curve (time-intensity curve, TIC) parameters differences, measurement data between groups were conducted by independent sample t test, count data between groups were compared by χ2. The receiver operating characteristic curve (receiver operating characteristic, ROC) was drawn to evaluate the diagnostic performance of TIC parameters for cervical LNM. Results:The proportion of PTC nodules with low enhancement, irregular enhancement, heterogeneous enhancement, unclear lesion boundary, and perfusion defect (72.09%, 87.21%, 88.64%, 69.77%, 70.93%) was significantly higher than that of benign nodules (38.64%, 11.36%) %, 27.27%, 77.27%, 27.27%) ( χ2=13.67, 70.75, 49.69, 25.92, 18.24, P<0.05) ; PTC nodule peak intensity (peak intensity, PI), TIC area under the curve (area under curve, AUC) was significantly lower than that of benign nodules (14.86±2.11dB vs 23.94±3.51dB, 985.14±105.31dB·s vs 1621.14±182.61dB·s) ; time to peak (TTP) was significantly higher than that of benign nodules ( 44.82±5.01s vs 36.95±4.18s) ( t=18.39, 21.36, 8.94, P<0.05) ; there was no significant difference in mean transit time (MTT) ( P>0.05) ; AUC was significantly higher than that of the non-metastatic group (16.86±2.09) dB vs (13.73±1.42) dB, (1163.54±131.41) dB·s vs (884.59±93.25) dB·s ( t=8.25, 11.46, P<0.05) ; The PI and AUC of PTC patients with lesion diameter ≤1.5 cm were significantly lower than those of patients with lesion diameter > 1.5 cm (11.56±1.94) dB vs (15.93±2.46) dB, (876.97±100.21) dB·s vs (1020.09±125.41) dB·s ( t=8.39, 5.34, P< 0.05), there was no significant difference in terms of TTP or MTT ( P>0.05) ; the AUC of PI in the diagnosis of cervical lymph node metastasis in PTC patients was 0.888 (95% CI: 0.807-0.969), the sensitivity was 90.91%, and the specificity was 77.42%; The AUC for the diagnosis of cervical lymph node metastasis in PTC patients was 0.972 (95% CI: 0.943-1.000), with a sensitivity of 87.10% and a specificity of 96.36%. Conclusion:The CEUS manifestations of PTC nodules are mostly irregular and heterogeneous low-enhancement, and the TIC-related parameters of PTC nodules and benign nodules are significantly different, and TIC-related parameters have good diagnostic efficiency for patients with cervical lymph node metastasis.
3.Appropriate age of primary and secondary school students for Cardiopulmonary resuscitation training
Zeng HUANG ; Jiefeng XU ; Guofeng CHEN ; Ya FANG ; Yudan HU ; Dike ZHAO ; Lu SHEN ; Fangying ZHENG ; Zilong LI
Chinese Journal of General Practitioners 2019;18(5):462-466
Objective To investigate the appropriate age of primary and secondary school students for cardiopulmonary resuscitation (CPR) training.Methods A total of 437 students aged 9-15 years at 3 to 6 grade in the primary schools or 1 to 2 grade in the secondary schools were selected from 2 Yuyao primary and secondary schools by stratified random sampling between March 2017 and January 2018.The numbers of students with the age of 9,10,11,12,13,14 and 15 y were 61,62,66,64,63,63 and 58,respectively.All students received chest compression training provided by Yuyao emergency department People's Hospital according to the 2015 Cardiopulmonary Resuscitation Guidelines.The training included 30 min theoretic teaching and 6 min practice in the simulator.The quality of chest compression performed by students was assessed;the depth,rate,position and retention of chest compression were recorded.Results The mean depth of chest compression in the students aged 9-15 years was 3.8,4.1,4.6,5.1,5.2,5.6 and 5.6 cm,respectively;the accuracy rate was 24.6%(14/61),25.8% (16/62),50.2% (33/66),70.5% (45/64),79.4%(50/63),88.9%(56/63) and 91.4(53/58),respectively.Compared with the students aged 9-11 years,the mean depth of chest compression was significantly increased and accuracy rate was significantly improved in the students aged 12-15 years (Compared with 9-y students,t=-8.936,-9.502,-10.640 and-11.370;x2=35.019,47.599,63.013 and 65.671;compared with 10-y students,t=-6.927,-8.179,-10.70 and-11.047;x2=24.977,35.967,50.916 and 52.727;compared with 1 1-y students,t=-3.095,-4.177,-6.785 and-6.995;x2=5.586,12.114,22.786 and 24.870;all P<0.05).The mean rate of chest compression was 110-116/min and its accuracy rate was 86.4%-95.2%;the accuracy rate of chest compression position was 90.9%-96.8% in all students,there were no significant differences among the 7 groups.The mean retention rate of chest compression in the 7 groups was 81.3%(122/150),67.3%(101/150),64.7% (94/150),48.0%(72/150),48.7%(73/150),33.3%(50/150) and 27.3%(41/150),respectively.Compared with the students aged 9-11 years,the mean retention rate of chest compression was significantly decreased in the students aged 12-15 years (compared with the 9-y students,x2=36.472,35.179,70.64 and 119.92;compared with 10-y students,x2=11.483,10.728,34.682 and 72.150;compared with 11-y students,x2=6.528,5.927,25.855 and 59.11;all P<0.05).Correlation analysis showed that the depth (r=0.96,0.89,0.91 and 0.86;P<0.01) and retention rate (r=-0.99,-0.90,-0.93 and-0.86;all P<0.01) of chest compression were significantly associated with the age,body weight,height and body mass index of students.Conclusion The students with an age of 12 years or more are able to effectively perform chest compression;thus,12 years and above might be the appropriate age for CPR training.
4.The practice of multidisciplinary team model in cancer diagnosis and treatment in the primary hospitals
Guofeng ZHANG ; Dexin KONG ; Yingjie YIN ; Xiaocheng LIU ; Rui KANG ; Zhanlong SHEN
Chinese Journal of General Surgery 2017;32(7):616-618
Objective To introduce and analyze the status of tumor multidisciplinary team (MDT) model application in primary hospitals.Methods MDT discussion decision-making and implementation of Nanpi People's Hospital from June 2013 to July 2015 were retrospectively analyzed.Results A total of 251 cases were recruited into the MDT discussion.Among them,233 primarily diagnosed cases reached MDT decision-making and 159 cases took the decision,118 cases achieved the purpose (74.2%),41 cases failed (25.8%).Yet in 74 cases not following the decision,11 cases achieved the desired purpose (14.9%),while 63 cases didn't meet the desired purpose (85.1%),the difference was statistically significant (x2 =71.97,P < 0.01).Ultrasound interventional biopsy,enhanced CT scan,CT guided puncture,intraoperative frozen section examination in malignant tumor patients had significantly increased after MDT applied,the difference was statistically significant (all P < 0.05).The annual new rural cooperative medical system referral rate in malignant tumor patients dropped sharply (x2 =19.86,P < 0.01) Conclusions Doctors and cancer patients can benefit from MDT diagnosis and treatment model,which is worth generalization.
5.Enhancing the ability of autophagy and proliferation of bone marrow mesenchymal stem cells by interleukin-8 through Akt-STAT3 pathway in hypoxic environment.
Lei SHEN ; Shanqiang ZHANG ; Xiaodong ZHANG ; Yuting ZHANG ; Liping XIE ; Yang JIANG ; Yong MA ; Guofeng LI
Chinese Journal of Biotechnology 2016;32(10):1422-1432
To study the effects and mechanisms of interleukin-8 (IL-8) on the proliferation and autophagy of human bone marrow mesenchymal stem cells (hBMSC) under hypoxic condition. In the hypoxia model, we set the non-stimulated hBMSC as the hypoxia control group; the hBMSC stimulated by 100 μmol/L human IL-8 as the IL-8 group; the hBMSC stimulated by 50 μmol/L MK2206 (Akt protein inhibitor) and 100μmol/L IL-8 as the Akt inhibitor group; and the normal cultured hBMSC as the normal control group. The experiments of EdU cell proliferation and TUNEL apoptosis were respectively used to detect the number of positive cells that were labeled by EdU and apoptosis in each group, and Western blotting and ELISA were used respectively to detect the expression of autophagy protein (LC-3), Akt/STAT3 and other proteins in each group. The results indicated that the proliferation and autophagy of hBMSC in IL-8 group was higher than that in hypoxia control group and Akt inhibitor group, and the apoptosis rate in IL-8 group decreased. These results and the high expression of Akt, STAT3 and VEGF protein of IL-8 group show that under the hypoxic condition, IL-8 played a protective role on MSC through the Akt-STAT3 pathway. It had important significance in the protection of MSC against the injury due to ischemia and hypoxia, and promoted the application of MSC in regenerative medicine.
6.Effect of stroke-associated pneumonia on the prognosis of the elderly hospitalized for acute stroke in the intensive care unit
Xiang LI ; Lijing JIANG ; Jindi NI ; Yingjie SUN ; Guofeng SHEN ; Juping NI ; Zhenlin CAI
Clinical Medicine of China 2015;31(8):682-685
Objective To investigate the risk factors for death within 30 days of stroke associated pneumonia(SAP) in elderly patients of the intensive care unit (ICU).Methods Clinical data of 116 patients with SAP who were admitted to ICU were reviewed.The predicting factors of death within 30 days were analyzed through variable analysis method.Results The hospitalization periods of the SAP group and control group were (27±8) d and (12±5) d,the difference was statistically significant(t =1 1.30,P =0.002).The most common pathogenic bacteria in SAP were Klebsiella pneumoniae,Bauman Acinetobacter,Escherichia coli,and gram negative bacteria.There was significant difference between the two groups in term of mortality rate(37.9%(44/ 116) of SAP group,22.0% (22/100) of control group,x2 =6.423,P =0.011).Logistic regression analysis showed that basic diseases(OR =2.778,95% CI:1.205-6.401),high CRUB-65 score (OR =1.978,95% CI:0.871-11.098),lower Glasgow coma score(GCS) (OR=3.601,95%CI:0.244-9.477),bucking(OR=3.020,95%CI:1.305-10.603),mechanical ventilation(OR=2.654,95%CI:1.176-5.990),shock(OR=2.636,95% CI:1.164-5.969) and high plasma CRP level(OR=2.333,95%CI:1.046-5.206) were risk factors for SAP (all P<0.05).In Cox regression analysis,a GCS score of < 9 was an independent risk factor for 30 d mortality of patientswithSAP(HR=7.23,95%Cl:2.24-20.11,P=0.001).Conclusion SAP is one of the serious complications of the elderly hospitalized for the acute stroke in the ICU,which may affect the prognosis of the patients.
7.A multi-center clinical study of a novel controlled attenuation parameter for assessment of fatty liver.
Feng SHEN ; Ruidan ZHENG ; Yuqiang MI ; Junping SHI ; Guofeng CHEN ; Jianneng CHEN ; Liang XU ; Qin PAN ; Leiming XU ; Jiangao FAN
Chinese Journal of Hepatology 2014;22(12):926-931
OBJECTIVETo evaluate the controlled attenuation parameter (CAP) assessment of fatty liver and choose a cut-off value of hepatic steatosis more than 5%.
METHODSConsecutive patients, 18 years or older, who had undergone percutaneous liver biopsy and CAP measurement were recruited from five liver healthcare centers in China. All enrollees were categorized as hepatic steatosis grade S0 (<5%) or S1 (5%). An M-probe equipped FibroScan 502 was used to capture CAP values. Receiver operating characteristic (ROC) curves were plotted, and the areas under (AU) the curves were calculated to determine the diagnostic efficacy. The CAP cut-off values at the optimal thresholds were defined by maximum Youden indices; sensitivity and specificity were also calculated.
RESULTSA total of 332 patients were enrolled in the study, including 67 patients with non-alcoholic fatty liver disease (NAFLD) and 265 with chronic hepatitis B (CHB) viru: infection. The median age (inter quartile range, IQR) of the study cohort was 39.0 (32.0-50.5) years-old. There were 46 males (68.7%) in the NAFLD group, with a median age of 37.0 (28.0-45.0) years-old, and 182 males (68.7%) in the CHB group; the differences between the two groups in median age and male: female ratio did not reach statistical significance. Multivariate linear regression analysis identified steatosis grade and body mass index (BMI) as independently associated with CAP. The median (IQR) CAP values among patients with S0 and S1 grade steatosis were 215.0 (190.0-241.0) dB/m and 294.0 (255.0-325.5) dB/m (P<0.001), respectively. For all patients, when BMI was <25 kg/m2, the ability of the AUROC of the CAP to discriminate hepatic steatosis more than or equal to 5% was 0.853, and the optimal cut-off value was 244.5 dB/m; however, when BMI≥25 kg/m2, the AUROC was 0.835 and the optimal cut-off value 269.5 dB/m.
CONCLUSIONCAP can identify hepatic steatosis more than or equal to 5% and is applicable for the diagnosis of fatty liver if it is adjusted for BMI.
Adult ; Area Under Curve ; Bile ; Biopsy ; Body Mass Index ; China ; Fatty Liver ; Female ; Hepatitis B, Chronic ; Humans ; Linear Models ; Male ; Middle Aged ; Multivariate Analysis ; ROC Curve ; Tissue Extracts
8.Articular cartilage defect treated with biological osteochondral xenogenic graft transplantation
Hongyuan SHEN ; Huayang HUANG ; Yu ZHANG ; Xiaofei ZHENG ; Pingyue LI ; Guofeng XU ; Zejin WANG ; Qing WANG
Chinese Journal of Tissue Engineering Research 2013;(44):7729-7732
BACKGROUND:The methods used to repair articular cartilage defects currently have the cons and pros. Fibrocartilages are commonly used to repair tissues, and the fibrocartilage lacks of the tissue biomechanical properties and chemical properties of normal hyaline cartilage. OBJECTIVE:To investigate the feasibility of biological osteochondral xenogenic graft transplantation to repair articular cartilage defects. METHODS:The normal goats were randomly divided into two groups. The donor pig knee joints were the experimental group. Cylindrical osteochondral with the diameter of 4.5 mm and length of 10 mm were col ected with the Smith&Nephew osteochondral transplantation device, and the patented technology was used for deantigen. The donor goat knee joint osteochondrals were the control group and preserved with cryopreservation. The lesions on femoral trochlea and weight-bearing surface of medial condyle were selected respectively for osteochondral implantation, and the animals were sacrificed at 16 and 32 weeks after operation for the general and pathological section observation. RESULTS AND CONCLUSION:General observation in the experimental showed that the lesions were covered by fibroid tissue;some cartilage of the grafts turned yel ow and there was clear boundary between the surface and the peripheral cartilages;the general and section observation under microscope showed that lesions of the control group were covered by the grafts basical y, and cracks could be seen on the edge of the transplant part. The results show that there is difference between effects of biological osteochondral xenogenic graft transplantation and osteochondral al ograft transplantation for the repairing of articular cartilage defects, and osteochondral al ograft transplantation bas better effect.
9.Analysis of risk factors for ventilator-associated pneumonia in intensive care unit
Guofeng SHEN ; Xiang LI ; Xingqi DENG ; Jindi NI
Chinese Journal of Postgraduates of Medicine 2013;36(22):20-22
Objective To discuss the risk factors of ventilator-associated pneumonia (VAP) in intensive care unit(ICU).Methods From January 2008 to June 2010,the clinical data of 145 patients with mechanical ventilation over 48 hours in ICU were analyzed prospectively,and the effect was observed.Results There were a total of 53 patients with VAP,and the incidence was 36.6% (53/145).Thirty-three cases died,and the fatality rate was higher than that in non-VAP patients [62.3% (33/53) vs.30.4% (28/92)],and there was significant difference (P <0.05).Related factors analysis results showed that indwelling gastric tube,the use of antiacids,mechanical ventilation time,nutritional status,age ≥ 60 years and chronic diseases were the risk factors of VAP (P < 0.05 or < 0.01).Conclusion VAP has many risk factors and higher fatality rate in ICU,and comprehensive prevention measures should be adopted to prevent the occurrence of VAP.
10.A positioning method of ultrasound probe in MR system.
Bo WEI ; Guofeng SHEN ; Sheng CHEN ; Mengyuan ZHU ; Zhiqiang SU ; Yazhu CHEN
Chinese Journal of Medical Instrumentation 2013;37(3):166-177
This paper provides a method of positioning the ultrasound probe in MR system. Machining 6 slots or cylinder perpendicular to the ultrasound probe surface on the edge of ultrasound probe as markers, 12 central cylinder ends are chosen as positioning points. By calculating these positioning points' coordinates in MR's coordinate system, the coordinate transformation between the ultrasound and MR coordinate system can be computed. Furthermore, by taking advantage of redundant information, calculating errors can be reduced and the precision can be improved.
Magnetic Resonance Imaging
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Ultrasonic Therapy
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