Objective:To investigate the current status of vascular access team building and analysis its related factors in hemodialysis centers in China.Methods:The study was a cross-sectional survey. Using a convenience sampling method, a questionnaire was designed to investigate the clinical practice of vascular access teams in 527 hemodialysis centers in China from March to April 2022. The related factors of the formation of vascular access teams and the setting up of vascular access coordinators (VAC) were analyzed by multivariate logistic regression method.Results:A total of 506 valid questionnaires were recovered, with a recovery rate of 96.02%. There were 247 (48.81%) and 193 (38.14%) hemodialysis centers respectively across China that had built vascular access teams and set up VAC. Hemodialysis centers with more than 10 years of practice had higher rate of implementation than those in hemodialysis centers with practice years less or equal than 10 years in developing standardized procedures for vascular access management ( χ 2=8.288, P=0.004), holding continuous quality improvement meetings on vascular access ( χ 2=8.210, P=0.004), establishing vascular access teams ( χ 2=33.805, P<0.001) and setting up vascular access coordinators ( χ 2=16.038, P<0.001), and the difference was statistically significant. The results of multivariate logistic regression analysis showed that the number of dialysis machines ( OR=2.221, 95% CI 1.118-4.415, P=0.023), the number of patients on dialysis( OR=2.946, 95% CI 1.375-6.310, P=0.005), and the establishment of VAC positions ( OR=9.463, 95% CI 5.307-16.874, P<0.001), and the standardized vascular access management process ( OR=3.383, 95% CI 2.012-5.687, P<0.001) were the related factors of vascular access team building. The related factors of setting up a VAC position in hemodialysis center were opening vascular access clinic ( OR=2.704,95% CI 1.382-5.290, P=0.004), the formation of a vascular access team ( OR=9.464, 95% CI 5.312-16.860, P<0.001), and constructing standardized procedures for vascular access management ( OR=3.663, 95% CI 2.243-5.982, P<0.001). Conclusion:The implementation rates of vascular access team and VAC position in hemodialysis centers were 48.81% and 38.14%, respectively. The number of dialysis machines, the number of patients on dialysis, the standardized procedures for vascular access management, the vascular access clinic, the vascular access team, and the VAC position were the relevant factors of the team building for vascular access.

Objective:To investigate the current situation of adverse events in hemodialysis nursing in class-A tertiary hospitals in China and analyze their nursing human resources related influencing factors, aiming at provide references for hemodialysis centers to adjust nursing human resources scientifically to reduce the occurrence of nursing adverse events.Methods:A convenient sampling method was used. From August to October 2021, a self-designed questionnaire was used to investigate nursing adverse events in hemodialysis centers of 860 class-A tertiary hospitals during 2020 in China. Multivariate Logistic regression was used to analyze the influencing factors of blood loss, hemodialysis catheter-related blood stream infection (CRBSI) and venous needle dislodgement (VND) in hemodialysis centers.Results:A total of 826 valid questionnaires were received, with an effective response rate of 96.05%(826/860). There were 826 hemodialysis centers covering 31 provinces, municipalities and autonomous regions in China. The establishment period of each center was 24(18, 30) years. There were 45(30, 62) dialysis machines, 180(110, 260) patients and 19(13, 27) registered nurses. Blood loss, hemodialysis CRBSI and VND occurred in 70.94% (586/826), 68.04%(562/826) and 46.97% (388/826) of hemodialysis centers, respectively. Multivariate Logistic regression results showed that the daily treatment shift ( OR=0.730, 95% CI 0.536-0.994), the proportion of nurses with bachelor's degree or above ( OR=1.635, 95% CI 1.142-2.342), and whether nurses worked part-time on peritoneal dialysis treatment ( OR=0.225, 95% CI 0.052-0.965) were the influencing factors for blood loss in hemodialysis centers (all P<0.05). The daily treatment shift ( OR=0.566, 95% CI 0.413-0.777), the number of patients which each nurse was responsible for per shift simultaneously ( OR=0.549, 95% CI 0.400-0.753), proportion of blood purification specialized nurses ( OR=1.661, 95% CI 1.216-2.269), whether nurses worked part-time on CRRT ( OR=0.700, 95% CI 0.511-0.957), the education level of the nursing manager was junior college and below ( OR=3.789, 95% CI 1.576-9.113) and bachelor′s degree ( OR=2.585, 95% CI 1.328-5.033) were the influencing factors for the hemodialysis catheter-associated bloodstream infection in hemodialysis centers (all P<0.05). The number of patients which each nurse ( OR=0.580, 95% CI 0.433-0.777) was responsible for per shift simultaneously was the influencing factor in the occurrence of VND in hemodialysis centers ( P<0.05). Conclusions:The nursing adverse events of blood loss, hemodialysis catheter-associated bloodstream infection and VND were relatively common in hemodialysis centers. The hospital managers should take corresponding measures aiming at the above influencing factors to prevent the occurrence of nursing adverse events and improve the quality and safety of nursing.

Objective:To compare the effect of metal prefabricated crowns and 3M350 universal resin on the dental caries of deciduous teeth.Methods:Retrospective analysis was performed on the clinical data of 89 children with proximal molar caries restoration admitted to Nantong Stomatological Hospital from January 2020 to January 2022. According to treatment methods, they were divided into observation group (metal prefabricated crowns restoration treatment, 49 cases of 49 teeth) and control group (3M350 universal resin restoration treatment, 40 cases of 40 teeth). The repair effect, occlusal function, periodontal index, treatment satisfaction and complications were compared.Results:The success rate of repair in the observation group (93.88%, 46/49) was higher than that in the control group (77.50%, 31/40), and the difference was statistically significant ( P<0.05). The maximum biting force and masticatory efficiency of the two groups after treatment were higher than those before treatment, and the observation group was higher than the control group, and the difference was statistically significant (all P<0.05). Comparison of periodontal indexes between the experimental and control groups comparison of probing depth (PD), plaque index (PLI), and bleeding index (BI) between the two groups before treatment, the differences were not statistically significant (all P>0.05); after treatment, PD, PLI, and BI were lower in both groups, and lower in the experimental group (all P<0.05). The total satisfaction of the observation group (87.76%, 43/49) was higher than that of the control group (65.00%, 26/40), and the difference was statistically significant ( P<0.05). The incidence of complications in the observation group (6.12%, 3/49) was lower than that in the control group (22.50%, 9/40), and the difference was statistically significant ( P<0.05). Conclusions:Compared with 3M350 general purpose resin, metal prefabricated crowns has better repairing effect and lower complication rate on adjacent caries of deciduous teeth, so it can be widely used in clinic.

Objective:To compare the effect of metal prefabricated crowns and 3M350 universal resin on the dental caries of deciduous teeth.Methods:Retrospective analysis was performed on the clinical data of 89 children with proximal molar caries restoration admitted to Nantong Stomatological Hospital from January 2020 to January 2022. According to treatment methods, they were divided into observation group (metal prefabricated crowns restoration treatment, 49 cases of 49 teeth) and control group (3M350 universal resin restoration treatment, 40 cases of 40 teeth). The repair effect, occlusal function, periodontal index, treatment satisfaction and complications were compared.Results:The success rate of repair in the observation group (93.88%, 46/49) was higher than that in the control group (77.50%, 31/40), and the difference was statistically significant ( P<0.05). The maximum biting force and masticatory efficiency of the two groups after treatment were higher than those before treatment, and the observation group was higher than the control group, and the difference was statistically significant (all P<0.05). Comparison of periodontal indexes between the experimental and control groups comparison of probing depth (PD), plaque index (PLI), and bleeding index (BI) between the two groups before treatment, the differences were not statistically significant (all P>0.05); after treatment, PD, PLI, and BI were lower in both groups, and lower in the experimental group (all P<0.05). The total satisfaction of the observation group (87.76%, 43/49) was higher than that of the control group (65.00%, 26/40), and the difference was statistically significant ( P<0.05). The incidence of complications in the observation group (6.12%, 3/49) was lower than that in the control group (22.50%, 9/40), and the difference was statistically significant ( P<0.05). Conclusions:Compared with 3M350 general purpose resin, metal prefabricated crowns has better repairing effect and lower complication rate on adjacent caries of deciduous teeth, so it can be widely used in clinic.

Objective:To investigate the current situation of adverse events in hemodialysis nursing in class-A tertiary hospitals in China and analyze their nursing human resources related influencing factors, aiming at provide references for hemodialysis centers to adjust nursing human resources scientifically to reduce the occurrence of nursing adverse events.Methods:A convenient sampling method was used. From August to October 2021, a self-designed questionnaire was used to investigate nursing adverse events in hemodialysis centers of 860 class-A tertiary hospitals during 2020 in China. Multivariate Logistic regression was used to analyze the influencing factors of blood loss, hemodialysis catheter-related blood stream infection (CRBSI) and venous needle dislodgement (VND) in hemodialysis centers.Results:A total of 826 valid questionnaires were received, with an effective response rate of 96.05%(826/860). There were 826 hemodialysis centers covering 31 provinces, municipalities and autonomous regions in China. The establishment period of each center was 24(18, 30) years. There were 45(30, 62) dialysis machines, 180(110, 260) patients and 19(13, 27) registered nurses. Blood loss, hemodialysis CRBSI and VND occurred in 70.94% (586/826), 68.04%(562/826) and 46.97% (388/826) of hemodialysis centers, respectively. Multivariate Logistic regression results showed that the daily treatment shift ( OR=0.730, 95% CI 0.536-0.994), the proportion of nurses with bachelor's degree or above ( OR=1.635, 95% CI 1.142-2.342), and whether nurses worked part-time on peritoneal dialysis treatment ( OR=0.225, 95% CI 0.052-0.965) were the influencing factors for blood loss in hemodialysis centers (all P<0.05). The daily treatment shift ( OR=0.566, 95% CI 0.413-0.777), the number of patients which each nurse was responsible for per shift simultaneously ( OR=0.549, 95% CI 0.400-0.753), proportion of blood purification specialized nurses ( OR=1.661, 95% CI 1.216-2.269), whether nurses worked part-time on CRRT ( OR=0.700, 95% CI 0.511-0.957), the education level of the nursing manager was junior college and below ( OR=3.789, 95% CI 1.576-9.113) and bachelor′s degree ( OR=2.585, 95% CI 1.328-5.033) were the influencing factors for the hemodialysis catheter-associated bloodstream infection in hemodialysis centers (all P<0.05). The number of patients which each nurse ( OR=0.580, 95% CI 0.433-0.777) was responsible for per shift simultaneously was the influencing factor in the occurrence of VND in hemodialysis centers ( P<0.05). Conclusions:The nursing adverse events of blood loss, hemodialysis catheter-associated bloodstream infection and VND were relatively common in hemodialysis centers. The hospital managers should take corresponding measures aiming at the above influencing factors to prevent the occurrence of nursing adverse events and improve the quality and safety of nursing.

Objective:To investigate the current status of vascular access team building and analysis its related factors in hemodialysis centers in China.Methods:The study was a cross-sectional survey. Using a convenience sampling method, a questionnaire was designed to investigate the clinical practice of vascular access teams in 527 hemodialysis centers in China from March to April 2022. The related factors of the formation of vascular access teams and the setting up of vascular access coordinators (VAC) were analyzed by multivariate logistic regression method.Results:A total of 506 valid questionnaires were recovered, with a recovery rate of 96.02%. There were 247 (48.81%) and 193 (38.14%) hemodialysis centers respectively across China that had built vascular access teams and set up VAC. Hemodialysis centers with more than 10 years of practice had higher rate of implementation than those in hemodialysis centers with practice years less or equal than 10 years in developing standardized procedures for vascular access management ( χ 2=8.288, P=0.004), holding continuous quality improvement meetings on vascular access ( χ 2=8.210, P=0.004), establishing vascular access teams ( χ 2=33.805, P<0.001) and setting up vascular access coordinators ( χ 2=16.038, P<0.001), and the difference was statistically significant. The results of multivariate logistic regression analysis showed that the number of dialysis machines ( OR=2.221, 95% CI 1.118-4.415, P=0.023), the number of patients on dialysis( OR=2.946, 95% CI 1.375-6.310, P=0.005), and the establishment of VAC positions ( OR=9.463, 95% CI 5.307-16.874, P<0.001), and the standardized vascular access management process ( OR=3.383, 95% CI 2.012-5.687, P<0.001) were the related factors of vascular access team building. The related factors of setting up a VAC position in hemodialysis center were opening vascular access clinic ( OR=2.704,95% CI 1.382-5.290, P=0.004), the formation of a vascular access team ( OR=9.464, 95% CI 5.312-16.860, P<0.001), and constructing standardized procedures for vascular access management ( OR=3.663, 95% CI 2.243-5.982, P<0.001). Conclusion:The implementation rates of vascular access team and VAC position in hemodialysis centers were 48.81% and 38.14%, respectively. The number of dialysis machines, the number of patients on dialysis, the standardized procedures for vascular access management, the vascular access clinic, the vascular access team, and the VAC position were the relevant factors of the team building for vascular access.

Objective:To investigate the clinical value of multiparameteric quantitative ultrasound combined with a non-invasive prediction model for assessing high-risk steatohepatitis.Methods:One hundred and ninety-four cases with metabolic-associated fatty liver disease (MAFLD) who underwent liver biopsy in Huashan Hospital, Fudan University, from June 2021 to September 2022 were selected. Shear wave elastography (SWE), shear wave dispersion (SWD) imaging, and attenuation imaging (ATI) examinations were conducted in all patients before biopsy. High-risk steatohepatitis was defined as a total activity score of ≥4 in patients with steatohepatitis, hepatocellular ballooning, and liver lobular inflammation based on pathological hepatic steatosis, inflammatory activity, and fibrosis scoring system (SAF), and fibrosis stage≥F2. Binary logistic regression analysis was used to identify the factors influencing high-risk steatohepatitis. A predictive model for diagnosing high-risk steatohepatitis was constructed using R language. The DeLong test was used to compare the area under the curve between groups. Measurement data was compared between groups using the t-test or rank-sum test, and count data were compared between groups using the χ2 test. Results:There were 46 cases (23.7%) with high-risk steatohepatitis. The quantitative ultrasound parameters included elastic modulus ( OR=2.958, 95% CI: 1.889-4.883, P<0.001), dispersion coefficient ( OR=1.786, 95% CI: 1.424-2.292, P<0.001) and attenuation coefficient ( OR=42.642, 95% CI: 3.463-640.451, P=0.004). Serological indexes of fasting blood glucose ( OR=1.196, 95% CI: 1.048-1.392, P=0.011), alanine aminotransferase ( OR=1.012, 95% CI: 1.006-1.019, P<0.001), aspartate aminotransferase ( OR=1.027, 95% CI: 1.014-1.042, P<0.001), γ-glutamyl transferase ( OR=1.008, 95% CI: 1.001-1.017, P=0.041) and HDL cholesterol ( OR=0.087, 95% CI: 0.016-0.404, P=0.003) were the factors influencing its progression. The AUCs of elastic modulus, dispersion coefficient, attenuation coefficient, multiparametric ultrasound model, serological index model, and ultrasound combined with serology model for the diagnosis of high-risk steatohepatitis were 0.764, 0.758, 0.634, 0.786, 0.773 and 0.825, respectively. The results of the DeLong test showed that the ultrasound combined with the serological model was significantly better than the serological index model and the elastic modulus, dispersion coefficient, and attenuation coefficient alone ( P=0.024, 0.027, 0.038 and <0.001). Conclusion:The combination of multiparametric quantitative ultrasound is helpful for the non-invasive diagnosis of high-risk steatohepatitis and possesses great clinical significance.

Objective:To analyze the clinical characteristics of children with severe Mycoplasma pneumoniae pneumonia（SMPP）induced plastic bronchitis（PB）requiring multiple bronchoscopic lavage treatments.Methods:The clinical data related to children with SMPP causing PB admitted to the Department of Pediatric Respiratory Medicine，Shengjing Hospital of China Medical University，from January 2017 to December 2019 was retrospectively analyzed.According to the number of bronchoscopic lavage treatment，the children were divided into the multiple group（≥2 times）and the single group，and the differences between the two groups of children in terms of clinical manifestations，laboratory tests，and imaging characteristics were compared，and the indicators with statistically significant differences between the two groups were subjected to multifactorial Logistic regression analysis to draw the receiver operating characteristic curve of the subjects. Analysis of predictors of the need for multiple bronchoscopic lavage treatment for PB due to SMPP in children was conducted.Results:A total of 68 children with PB due to SMPP were collected，including 24 cases in the multiple group and 44 cases in the single group.Compared with the single group，the multiple group had a longer fever duration［（14.46±3.68）d vs.（11.14±2.64）d， t=4.302］，longer hospital stay［（16.83±5.40）d vs.（11.00±3.19）d， t=4.848］，a higher proportion of peripheral blood neutrophils［（74.67±11.06）% vs.（63.02±14.46）%， t=3.431］，increased IL-6 levels［69.98（24.79，119.90）pg/mol vs.31.10（17.29，54.86）pg/mol， Z=-2.336］，elevated lactate dehydrogenase levels［（683.08 ± 248.39）U/L vs.（495.86±170.88）U/L， t=3.292］，and increased D-dimer［2 168.50（1 244.25，3 227.75）μg/L vs.915.50（479.00，2 017.75）μg/L， Z=-3.536］，and the differences were statistically significant（all P<0.05）.Logistic regression analysis revealed that three independent factors，neutrophil percentage，lactate dehydrogenase and D-dimer，could be valuable predictors of the need for multiple bronchoscopic lavage treatments for PB due to SMPP，with critical values of 74.35%，629.5 U/L and 963 μg/L，respectively. Conclusion:PB due to SMPP in children is severe，and treated with aggressive anti-infective and symptomatic supportive treatment such as bronchoscopic lavage，most of them have a good prognosis.In children with PB due to SMPP with neutrophil ratio >74.35%，lactate dehydrogenase >629.5 U/L and D-dimer >963 μg/L，it should be noted that multiple bronchoscopic lavage treatments may be required.

Objective To investigate the practice and barriers to functional monitoring of autogenous arteriove-nous fistula(AVF)in hemodialysis centers in China.Methods Using convenience sampling,from March to April 2022,a questionnaire was designed based on the literature of AVF functional monitoring,and a total of 527 hemodialysis centers in China were investigated from 3 aspects,including monitoring process and system,monitoring method and cont ent,and monitoring team construction.Results 506 questionnaires were effectively recovered,with a recovery rate of 96.02％.The implementation rate of the 12 entries of AVF functional monitoring ranged from 12.65％～79.84％,with an overall score of(4.97±3.03).The scores had statistically significant differences in 6 admin-istrative regions of China in monitoring process and system,monitoring method and content,and monitoring team building,as well as the total scores(P＜0.001).Barriers were centered on management specification,human resource allocation,professional training,and healthcare costs.Conclusion Hospital administrators should construct and per-fect the relevant management system according to the scale and actual situation of different hemodialysis centers,strengthen the supervision of AVF functional monitoring as well as the personalised management of monitoring pro-tocols,and promote the development of a multidisciplinary cooperation model for vascular access.

Objective To investigate the practice and barriers to functional monitoring of autogenous arteriove-nous fistula(AVF)in hemodialysis centers in China.Methods Using convenience sampling,from March to April 2022,a questionnaire was designed based on the literature of AVF functional monitoring,and a total of 527 hemodialysis centers in China were investigated from 3 aspects,including monitoring process and system,monitoring method and cont ent,and monitoring team construction.Results 506 questionnaires were effectively recovered,with a recovery rate of 96.02％.The implementation rate of the 12 entries of AVF functional monitoring ranged from 12.65％～79.84％,with an overall score of(4.97±3.03).The scores had statistically significant differences in 6 admin-istrative regions of China in monitoring process and system,monitoring method and content,and monitoring team building,as well as the total scores(P＜0.001).Barriers were centered on management specification,human resource allocation,professional training,and healthcare costs.Conclusion Hospital administrators should construct and per-fect the relevant management system according to the scale and actual situation of different hemodialysis centers,strengthen the supervision of AVF functional monitoring as well as the personalised management of monitoring pro-tocols,and promote the development of a multidisciplinary cooperation model for vascular access.