Objective To systematically review the efficacy of arthroscopic distal clavicle resection (DCR) in repair of rotator cuff (RCR) with acromioclavicular arthritis.Methods The Cochrane Library,PubMed,Medline EMbase,CBM and WanFang Data were searched for studies up to May 2016 concerning the efficacy of arthroscopic distal clavicle resection in repair of rotator cuff with acromioclavicular arthritis.Two reviewers independently screened the literature according to the inclusion and exclusion criteria,extracted the data and assessed the methodological quality of the studies included.Next,meta-analysis was performed using RevMan 5.3 software to compare the efficacy between the patients undergoing arthroscopic DCR plus RCR and those undergoing simple arthroscopic RCR.The randomized control trails (RCT) and clinical control trials (CCT) included were evaluated according to Cochrane Handbook for Systematic Reviews of Interventions (Version 5.1.0) and Methodological Index for Non-randomized Studies (MINORS),respectively.Results A total of 5 studies (3 RCTs and 2 CCTs) involving 465 patients were included.No statistically significant difference was found between the RCR and the DCR plus RCR patients in Visual Analogue Scale (VAS) score,Constant score,American Shoulder and Elbow Surgeons (ASES) score,shoulder range of motion (ROM),postoperative acromioclavicular pain or rotator cuff retear (P ＞ 0.05).The 3 RCTs showed moderate bias risk and the 2 CCTs scored 21 MINORS points.Conclusion Since current evidence shows no advantages of arthroscopic DCR over RCR in repair of rotator cuff with acromioclavicular arthritis in VAS score,Constant score,ASES score,shoulder ROM,postoperative acromioclavicular pain or rotator cuff retear,arthroscopic DCR should not be recommended for routine use in clinic.

Objective To compare arthroscopic double-pulley knotless suture bridge with conven tional arthroscopic suture bridge in repair of rotator cuff tear.Methods From May 2013 to May 2015,70patients with rotator cuff tear were repaired at our department.They were 38 males and 32 females,with a mean age of 53.7 years.They were randomized into 2 equal groups to receive repair either using arthroscopic double-pulley knotless suture bridge (the experimental group) or using conventional arthroscopic suture bridge (the control group).The 2 groups were compared postoperatively in terms of VAS (visual analogue scale),Constant,ASES (American Shoulder and Elbow Surgeons) and UCLA (University of California at Los Angeles) scores,shoulder range of motion,and rotator cuff retear.Results The 2 groups were compatible with no significant differences in gender,age,laterality,tear type,or preoperative function or range of motion of the shoulder joint (P ＞ 0.05).At 12 months postoperatively,the VAS,Constant,ASES and UCLA scores and shoulder range of motion in the experimental group were respectively 1.1 ± 1.3,86.0 ±8.9,13.3 ± 0.8,32.0 ± 2.9,156.8° ± 15.0° and 55.9° ± 5.8°,significantly improved than the preoperative values (P ＜0.05).At 12 months postoperatively,the VAS,Constant,ASES and UCLA scores and shoulder range of motion in the control group were respectively 1.3 ± 1.3,86.6 ±4.2,13.1 ± 1.0,31.1 ±2.6,153.3°±10.0° and 55.7° ± 5.1 °,significantly improved than the preoperative values (P ＜ 0.05).At 12 months postoperatively,there were no significant differences between the 2 groups in VAS,Constant,ASES or UCLA scores or shoulder range of motion (P ＞ O.05).No case of rotator cuff retear occurred in the experimental group while 5 cases were observed in the control group,showing a significant difference (0 versus 14.3％) (P ＜ 0.05).Conclusions Compared with conventional arthroscopic suture bridge,arthroscopic double-pulley knotless suture bridge presents no significant differences in range of motion or function of the shoulder joint in repair of rotator cuff tear.However,the latter may lead to a lower incidence of rotator cuff retear and,additionally,is less skillfully demanding.

China ; epidemiology ; Humans ; Incidence ; Liver Neoplasms ; epidemiology ; mortality

Objective: To evaluate the effects of three-dimensional printing patient-specific instrumentation(PSI) versus conventional instrumentation(CI) in the total knee arthroplasty. Methods: According to "patient-specific" , "patient-matched" , "custom" , "Instrumentation" , "Guide Instrumentation" , "cutting blocks" , "total knee arthroplasty" , "total knee replacement" , "TKA" and "TKR" , the literature on PubMed, EMbase, Cochrane library, CBM and WanFang were searched. According to the inclusion and exclusion criteria, the high quality randomized control trial (RCT) studies about three-dimensional (3D) printing patient-specific instrumentation versus conventional instrumentation in the total knee arthroplasty were collected. The post-operative limb mechanical axis outlier, the position of the components outlier, post-operative knee function, operative time, post-operative blood transfusion and complications were analyzed by RevMan 5.3 software. Results: A total of 13 high quality RCT studies were included. The results of Meta-analysis show that there were no statistical differences in the post-operative limb mechanical axis outlier(Z=0.55, P=0.58, 95% CI: 0.78 to 1.56), femoral coronal component outlier(Z=0.38, P=0.71, 95% CI: 0.69 to 1.72), tibia coronal component outlier(Z=1.95, P=0.05, 95% CI: 1.00 to 3.38), femoral rotation angle outlier(Z=0.36, P=0.72, 95% CI: 0.49 to 1.64), post-operative knee function(Z=1.18, P=0.24, 95% CI: -0.66 to 2.63), post-operative blood transfusions(Z=0.74, P=0.46, 95% CI: -0.10 to 0.05) and complications(Z=0.18, P=0.86, 95%CI: -0.07 to 0.05) between the PSI group and the CI group. But there are statistical differences in the operation time(Z=2.66, P=0.01, 95% CI: -15.97 to -2.41)and tibia sagittal component outlier (Z=3.69, P=0.00, 95% CI: 1.43 to 3.18)between the PSI group and the CI group. Conclusions In the primary total knee arthroplasty the PSI is not superior over the CI for the knee without severe knee varus or valgus deformity or contracture deformity, without the deformity around the knee and without the knee bone loss and obesity. The use of PSI in the primary total knee arthroplasty are not recommend.

Ob jective It has been reported by some prospective studies that C-reactive protein (CRP ) is associated with cancer risk .However, the correlation between CRP and digestive system cancers has not been evaluated in Chinese females .We conducted a large population-based cohort study to investigate whether elevated level of CRP in serum is associated with an increased risk of digestive system cancers in Chinese women.Metho ds From the Chinese Kailuan Female Cohort , 19,437 women were enrolled in this study in July 2006, and all of the subjects were followed up through 2014.At the baseline investigation , the serum levels of high-sensitivity CRP ( hsCRP ) were tested for all subjects , and demographic information and risk factor data were collected .Multivariable Cox proportional hazards regression model was used to calculate the hazard ratios ( HR ) and 95%confidence intervals ( 95%CI ) for the baseline levels of hsCRP after adjusting for age, marital status, smoking, drinking, body mass index ( BMI), diabetes and physical activity, and risk of digestive system tumors (including colorectal cancer, stomach cancer, pancreas cancer, liver and gallbladder cancer, and other cancers).Results By Dec 31, 2014, a total of 100 incident cancer cases were observed , including 47 colorectal cancers , 17 stomach cancers , and altogether 29 pancreas , liver and gallbladder cancers .All the subjects investigated were divided into three groups according to the level of hsCRP (<1 mg/L, 1-3 mg/L and >3 mg/L) .The 8-year cumulative incidence of digestive system cancers were 405/100 000, 520/100 000 and 787/100 000 in these 3 groups, respectively (Log rank test χ2=8.37, P=0.015 ) .Compared to those with lower hsCRP levels (<1 mg/L ) , the women with higher hsCRP (>3 mg/L) had a significantly increased risk of pancreas , liver and gallbladder cancers ( HR =2.70, 95%CI =1.06-6.91;Ptrend=0.036).Conclusions Elevated levels of hsCRP at baseline may be associated with increased risk of certain digestive system cancers .

Objective To explore the expression and significance of serum DKK1 in patients with gastric cancer. Methods We selected 170 gastric cancer patients (gastric cancer group) and 170 subjects with non-gastric cancer during the same period (control group). ELISA was used to detect the DKK1 level. The ROC curve was used to evaluate the diagnostic performance, and we analyzed the relation between DKK1 level and age, gender, family history of gastric cancer, cigarette smoking, alcohol consumption, tumor size, TNM stage, infiltration depth, lymph node metastasis, liver metastasis, vascular invasion, perineural invasion. Results The serum DDK1 level in GC patients was higher than that in control group (P < 0.0001). ROC curve showed that the possible optimal cut-off value of DKK1 for gastric cancer patients was 167.8 pg/ml, AUC was 0.908, sensitivity was 80.59%, and specificity was 84.71%. There was no significant relation between the serum DKK1 level and age, gender, family history of gastric cancer, cigarette smoking, alcohol consumption, tumor size, liver metastasis, vascular invasion or distant metastasis (all P > 0.05). However, DKK1 level was significantly related with TNM stage, infiltration depth, lymph node metastasis and perineural invasion (all P < 0.05). Conclusion Serum DKK1 level is higher in gastric cancer patients than that of control group and related with the severity of lesions, which indicates that serum DKK1 may be a potential biomarker for gastric cancer screening.

Objective To analyze the literatures about artificial intelligence in cancer research in Web of Science (WOS) core collection database in 2010-2019 and summarize research hot spots and development trends. Methods Through bibliometrics methods and CiteSpace information visualization software, we applied the visual analysis of relevant literature on artificial intelligence in the field of cancer research retrieved from the Web of Science core collection database from 2010 to 2019. Results The number of published articles about artificial intelligence in the field of cancer research had been increasing year by year. The United States ranked first in the number of published articles in this field, the number of citations and cooperation capabilities. Although the number of published articles in China ranked the second, the number of citations was low. The hot spots of artificial intelligence in cancer research were mainly breast cancer and lung cancer. Machine learning, neural network and other methods were used to build models, which were used in basic cancer research, clinical diagnosis, treatment and prognosis prediction. The research frontiers were the methodological research of artificial intelligence, the research on the occurrence and classification of cancer and the research of protein in this field. Conclusion It will effectively promote the development of artificial intelligence in cancer research in China by learning the hot spots and cutting-edge technologies of international research, focusing on international cooperation and cooperation among national institutions and strengthening cross-disciplinary research.

Ob jective It has been reported by some prospective studies that C-reactive protein (CRP ) is associated with cancer risk .However, the correlation between CRP and digestive system cancers has not been evaluated in Chinese females .We conducted a large population-based cohort study to investigate whether elevated level of CRP in serum is associated with an increased risk of digestive system cancers in Chinese women.Metho ds From the Chinese Kailuan Female Cohort , 19,437 women were enrolled in this study in July 2006, and all of the subjects were followed up through 2014.At the baseline investigation , the serum levels of high-sensitivity CRP ( hsCRP ) were tested for all subjects , and demographic information and risk factor data were collected .Multivariable Cox proportional hazards regression model was used to calculate the hazard ratios ( HR ) and 95%confidence intervals ( 95%CI ) for the baseline levels of hsCRP after adjusting for age, marital status, smoking, drinking, body mass index ( BMI), diabetes and physical activity, and risk of digestive system tumors (including colorectal cancer, stomach cancer, pancreas cancer, liver and gallbladder cancer, and other cancers).Results By Dec 31, 2014, a total of 100 incident cancer cases were observed , including 47 colorectal cancers , 17 stomach cancers , and altogether 29 pancreas , liver and gallbladder cancers .All the subjects investigated were divided into three groups according to the level of hsCRP (<1 mg/L, 1-3 mg/L and >3 mg/L) .The 8-year cumulative incidence of digestive system cancers were 405/100 000, 520/100 000 and 787/100 000 in these 3 groups, respectively (Log rank test χ2=8.37, P=0.015 ) .Compared to those with lower hsCRP levels (<1 mg/L ) , the women with higher hsCRP (>3 mg/L) had a significantly increased risk of pancreas , liver and gallbladder cancers ( HR =2.70, 95%CI =1.06-6.91;Ptrend=0.036).Conclusions Elevated levels of hsCRP at baseline may be associated with increased risk of certain digestive system cancers .

Objective:To systematically evaluate the quality of gastric cancer screening guidelines/recommendations, and provide a reference for the update of gastric cancer screening guidelines/recommendations in China.Methods:"guidelines/consensus/specifications/standards" , "stomach/gastric tumors" , "screening/diagnosis" , "guideline/recommendation" , "gastric cancer/gastric tumor," "early detection of cancer/screening" were searched as keywords in PubMed, Embase, Web of knowledge, China Knowledge Network, Wanfang, China Biomedical Literature Database, and Cochrane Library, as well as the US Preventive Services Working Group, the American Cancer Society, the International Agency for Research on Cancer, the Australia Cancer Council and the International Guide Collaboration Network at the end of July 2018. The inclusion criteria were independent guidelines/recommendation documents for gastric cancer screening. The exclusion criteria were guideline abstracts, interpretation and evaluation literature, duplicate publications, updated original guidelines, and clinical treatment or practice guidelines for gastric cancer. The language was limited to Chinese and English. The European Guide to Research and Evaluation Tools (AGREE Ⅱ) and Practice Guideline Reporting Standard (RIGHT) for Gastric Cancer Screening Guidelines/Recommendations were used to compare and evaluate the quality and reporting standard of gastric cancer screening guidelines/recommendations.Results:A total of five guides/recommendations were included. The results of the AGREE Ⅱ quality evaluation showed that the overall quality of five guides/recommendations was different, including one recommended for "A", one for "B", and three for "C". Each guide/recommendation scored higher in the scope and purpose, clarity, and scores were more significant in the areas of rigor and independence. In the participants, the application field scores were generally low. The RIGHT evaluation results showed that the quality of five guides/recommendations should be improved. The six items with poor report quality were background, evidence, recommendations, review and quality assurance, funding and conflict of interest statement and management, and other aspects.Conclusion:The quality of the included gastric cancer screening guidelines/recommendations is generally low, and the standardization should be strengthened.

Objective:To systematically evaluate the quality of gastric cancer screening guidelines/recommendations, and provide a reference for the update of gastric cancer screening guidelines/recommendations in China.Methods:"guidelines/consensus/specifications/standards" , "stomach/gastric tumors" , "screening/diagnosis" , "guideline/recommendation" , "gastric cancer/gastric tumor," "early detection of cancer/screening" were searched as keywords in PubMed, Embase, Web of knowledge, China Knowledge Network, Wanfang, China Biomedical Literature Database, and Cochrane Library, as well as the US Preventive Services Working Group, the American Cancer Society, the International Agency for Research on Cancer, the Australia Cancer Council and the International Guide Collaboration Network at the end of July 2018. The inclusion criteria were independent guidelines/recommendation documents for gastric cancer screening. The exclusion criteria were guideline abstracts, interpretation and evaluation literature, duplicate publications, updated original guidelines, and clinical treatment or practice guidelines for gastric cancer. The language was limited to Chinese and English. The European Guide to Research and Evaluation Tools (AGREE Ⅱ) and Practice Guideline Reporting Standard (RIGHT) for Gastric Cancer Screening Guidelines/Recommendations were used to compare and evaluate the quality and reporting standard of gastric cancer screening guidelines/recommendations.Results:A total of five guides/recommendations were included. The results of the AGREE Ⅱ quality evaluation showed that the overall quality of five guides/recommendations was different, including one recommended for "A", one for "B", and three for "C". Each guide/recommendation scored higher in the scope and purpose, clarity, and scores were more significant in the areas of rigor and independence. In the participants, the application field scores were generally low. The RIGHT evaluation results showed that the quality of five guides/recommendations should be improved. The six items with poor report quality were background, evidence, recommendations, review and quality assurance, funding and conflict of interest statement and management, and other aspects.Conclusion:The quality of the included gastric cancer screening guidelines/recommendations is generally low, and the standardization should be strengthened.