Objective To understand the current situation of healthcare-associated infection(HAI)in China,pro-vide data support and decision-making basis for formulating scientific and effective strategies for HAI prevention and control.Methods A nationwide cross-sectional survey on HAI was conducted among various types and levels of medical institutions in China according to a unified protocol of bedside surveys and case investigations.Results In 2024,a total of 5 736 medical institutions and 2 751 765 patients were surveyed.Among them,34 889 HAI cases were identified,with a prevalence rate of 1.27％.The number of HAI episodes was 38 032,and case prevalence rate was 1.38％.The prevalence rate of HAI in medical institutions in different regions of China ranged from 0.66％to 2.35％.Among medical institutions of different scales,those with a bed capacity of ≥900 had the high-est incidence of HAI,reaching 1.65％.The most common infection site was the lower respiratory tract(44.66％),followed by the urinary tract(12.94％),surgical site(9.32％),upper respiratory tract(7.02％),and bloodstream infection(5.78％).The top 3 departments with the highest HAI rates were the general intensive care unit(10.02％),department of neurosurgery(5.51％),and department(group)of hematology(5.34％).A total of 23 238 strains of HAI pathogens were detected,with 10 714 strains(46.10％)from lower respiratory tract speci-mens.The top 5 detected strains were Klebsiella pneumoniae(14.76％),Pseudomonas aeruginosa(13.33％),Escherichia coli(12.79％),Acinetobacter baumannii(9.23％),and Staphylococcus aureus(7.88％).231 944 pa-tients underwent class Ⅰ incision surgery were monitored,with 1 647 cases experienced surgical site infection,and the prevalence rate of surgical site infection was 0.71％.The number of patients who should undergo pathogen de-tection(patients receiving therapeutic and therapeutic combined prophylactic antimicrobial agents)was 715 179,while the actual number was 480 492,with a pathogen detection rate of 67.18％.425 225 patients received patho-genic detection before treatment,with a detection rate of 59.46％.Conclusion The overall HAI prevalence in Chi-na is lower,showing disparities among medical institutions of different regions and scales.Therefore,precise imple-mentation of measures is necessary for HAI prevention and control,with a focus on high-risk institutions and high-risk departments,key areas,and critical procedures.All levels of medical institutions should continuously reduce the incidence of HAI by strengthening monitoring,standardizing the use of antimicrobial agents,and reinforcing basic HAI prevention and control measures.

Objective To understand the current situation of healthcare-associated infection(HAI)in China,pro-vide data support and decision-making basis for formulating scientific and effective strategies for HAI prevention and control.Methods A nationwide cross-sectional survey on HAI was conducted among various types and levels of medical institutions in China according to a unified protocol of bedside surveys and case investigations.Results In 2024,a total of 5 736 medical institutions and 2 751 765 patients were surveyed.Among them,34 889 HAI cases were identified,with a prevalence rate of 1.27％.The number of HAI episodes was 38 032,and case prevalence rate was 1.38％.The prevalence rate of HAI in medical institutions in different regions of China ranged from 0.66％to 2.35％.Among medical institutions of different scales,those with a bed capacity of ≥900 had the high-est incidence of HAI,reaching 1.65％.The most common infection site was the lower respiratory tract(44.66％),followed by the urinary tract(12.94％),surgical site(9.32％),upper respiratory tract(7.02％),and bloodstream infection(5.78％).The top 3 departments with the highest HAI rates were the general intensive care unit(10.02％),department of neurosurgery(5.51％),and department(group)of hematology(5.34％).A total of 23 238 strains of HAI pathogens were detected,with 10 714 strains(46.10％)from lower respiratory tract speci-mens.The top 5 detected strains were Klebsiella pneumoniae(14.76％),Pseudomonas aeruginosa(13.33％),Escherichia coli(12.79％),Acinetobacter baumannii(9.23％),and Staphylococcus aureus(7.88％).231 944 pa-tients underwent class Ⅰ incision surgery were monitored,with 1 647 cases experienced surgical site infection,and the prevalence rate of surgical site infection was 0.71％.The number of patients who should undergo pathogen de-tection(patients receiving therapeutic and therapeutic combined prophylactic antimicrobial agents)was 715 179,while the actual number was 480 492,with a pathogen detection rate of 67.18％.425 225 patients received patho-genic detection before treatment,with a detection rate of 59.46％.Conclusion The overall HAI prevalence in Chi-na is lower,showing disparities among medical institutions of different regions and scales.Therefore,precise imple-mentation of measures is necessary for HAI prevention and control,with a focus on high-risk institutions and high-risk departments,key areas,and critical procedures.All levels of medical institutions should continuously reduce the incidence of HAI by strengthening monitoring,standardizing the use of antimicrobial agents,and reinforcing basic HAI prevention and control measures.

Objective:To mine the adverse events (AE) risk signal of azithromycin in children, establish the corresponding pharmaceutical care process, and provide reference for the safe use of azithromycin in clinic.Methods:AE caused by azithromycin in children (<18 years) were searched from the US FDA Adverse Event Reporting System (FAERS) database from the 1st quarter of 2004 to the 4th quarter of 2023. The AE was standardized and classified using the preferred term (PT) and system organ class (SOC) in the Medical Dictionary for Regulatory Activities 26.1 version. Reporting odds ratio (ROR) and proportional reporting ratio (PRR) methods were used for detection of AE signal of azithromycin. AE that simultaneously met the following conditions was considered as a risk signal: the number of reports≥3, lower limit of the 95% confidence interval of ROR≥1, PRR>2, and χ2>4. Descriptive analysis on the signals was performed. The pharmaceutical care process of azithromycin for children was established based on the results of signal mining and satisfaction survey was conducted. Results:A total of 1 457 AE reports related to azithromycin in children were collected, involving 127 PTs and 18 SOCs. The top 5 PTs in the number of reports were rash, pruritus, urticaria, drug hypersensitivity and diarrhea. The top 5 PTs in signal intensity were infantile diarrhea, myasthenia gravis crisis, intermittent explosive disorder, diarrhea neonatal, and infantile vomiting. A total of 16 risk signals that were not recorded in the label were mined out, and the top 5 PTs according to signal intensity were intermittent explosive disorder, conversion disorder, bronchiectasis, tooth discoloration, and choreoathetosis. The analysis of 79 AE reports with death outcomes showed that drug-induced liver injury, Stevens-Johnson syndrome, rash, vomiting, nausea, cyanosis, and diarrhea were related risk signals. Based on the signal mining results mentioned above, the medication safety officer team in our hospital established a pharmaceutical care process of azithromycin application for children, including pre-medication assessment (indications, medical history, heart and liver function, etc.), speed and mode of administration monitoring during the medication, and intervention measures after the occurrence of adverse reactions, and 178 hospitalized children who received azithromycin treatment were monitored. The satisfaction survey results showed the degree of satisfaction was 100%.Conclusions:The main AEs related to azithromycin in children are rash, pruritus, urticaria, drug hypersensitivity, and diarrhea, all of which are recorded in the label. In addition, we should also be vigilant against the risk signals such as intermittent explosive disorder, conversion disorder, bronchiectasis, tooth discoloration, and choreoathetosis, which are not recorded in the label. The pharmaceutical care process for azithromycin use in children based on the risk signal mining results is feasible and effective.

Objective:To mine the adverse events (AE) risk signal of azithromycin in children, establish the corresponding pharmaceutical care process, and provide reference for the safe use of azithromycin in clinic.Methods:AE caused by azithromycin in children (<18 years) were searched from the US FDA Adverse Event Reporting System (FAERS) database from the 1st quarter of 2004 to the 4th quarter of 2023. The AE was standardized and classified using the preferred term (PT) and system organ class (SOC) in the Medical Dictionary for Regulatory Activities 26.1 version. Reporting odds ratio (ROR) and proportional reporting ratio (PRR) methods were used for detection of AE signal of azithromycin. AE that simultaneously met the following conditions was considered as a risk signal: the number of reports≥3, lower limit of the 95% confidence interval of ROR≥1, PRR>2, and χ2>4. Descriptive analysis on the signals was performed. The pharmaceutical care process of azithromycin for children was established based on the results of signal mining and satisfaction survey was conducted. Results:A total of 1 457 AE reports related to azithromycin in children were collected, involving 127 PTs and 18 SOCs. The top 5 PTs in the number of reports were rash, pruritus, urticaria, drug hypersensitivity and diarrhea. The top 5 PTs in signal intensity were infantile diarrhea, myasthenia gravis crisis, intermittent explosive disorder, diarrhea neonatal, and infantile vomiting. A total of 16 risk signals that were not recorded in the label were mined out, and the top 5 PTs according to signal intensity were intermittent explosive disorder, conversion disorder, bronchiectasis, tooth discoloration, and choreoathetosis. The analysis of 79 AE reports with death outcomes showed that drug-induced liver injury, Stevens-Johnson syndrome, rash, vomiting, nausea, cyanosis, and diarrhea were related risk signals. Based on the signal mining results mentioned above, the medication safety officer team in our hospital established a pharmaceutical care process of azithromycin application for children, including pre-medication assessment (indications, medical history, heart and liver function, etc.), speed and mode of administration monitoring during the medication, and intervention measures after the occurrence of adverse reactions, and 178 hospitalized children who received azithromycin treatment were monitored. The satisfaction survey results showed the degree of satisfaction was 100%.Conclusions:The main AEs related to azithromycin in children are rash, pruritus, urticaria, drug hypersensitivity, and diarrhea, all of which are recorded in the label. In addition, we should also be vigilant against the risk signals such as intermittent explosive disorder, conversion disorder, bronchiectasis, tooth discoloration, and choreoathetosis, which are not recorded in the label. The pharmaceutical care process for azithromycin use in children based on the risk signal mining results is feasible and effective.

High grade glioma is a kind of malignant brain tumor with strong invasiveness,which progresses commonly after initial treatments and shows high mortality.Early diagnosis of tumor recurrence and highly-individualized systemic treatment mean significance to prolong survival.Multi-mode magnetic resonance imaging and molecular imaging play important roles in differential diagnosis and prognosis evaluation for recurrence.Therapeutic strategies like re-operation,re-irradiation,electric field technology,chemotherapy,targeted therapies and immunotherapeutic approaches are expected to bring survival benefits for patients with recurrent high grade glioma.

Objective:To explore the effect of inhibiting c-raf-1 by antisense technology on radiosensitivity in human cervical carcinoma cell line HeLa.Methods:There were four groups in the study:control group,lipofectin group,sense oligodexynucleotides(S-ODN) group,antisense oligodexynucleotides(AS-ODN) group.The expression of c-raf-1 was detected by means of RT-PCR,Cellular response to irradiation was evaluated by the colony forming test,Apoptosis was observed by fluorescent staining.Bcl-2 protein expression was determined by flow cytometry.Results:AS-ODN group could significantly decreased the proliferation rate and increasing the apoptosis rate,significantly downregulating the expression of Bcl-2 of irradiated human cervical carcinoma cells,(vs lipofectin group or S-ODN group,P

0.05).The side-effect in DDP group was more severe than in CMNa + RT group.Conclusion:There is no significant difference in radiosensitivity in two groups,but CMNa + RT regimen was more tolerable than DDP+ RT regimen.The long term effect needs further study.

Multimodality Treatment is the general trend in cancer management,and is the inevitable result of the development in clinical oncology as well.We must alter the traditional conception and change the teaching pattern to match the model radiation & oncology teaching.

Objective; To evaluated the effects and toxicity of Taxol + radiotherapy( RT) regimen and Taxol + CBP regimen for the old patients of advanced non - small cell lung cancer. Methods: 51 old patients of advanced non - small cell lung cancer were randomized into two groups. There are 25 cases in Taxol + CBP group, administrated with Taxol 135mg/m2 ,d1, CBP AUC5 ,d2. The regimen was repeated every 21 days. There are 26 cases in Taxol + RT group, administrated with Taxol 135mg/m2 ,dl ,d30, radiotherapy started on second day, DT65 -70Gy. Results; The total effective rate and clinical benefit response(CBR) in Taxol + RT group were much higher than Taxol + CBP group. 1 - year,2 - year survival rate of Taxol + CBP group were 49. 8% ,21. 7% .while 52. 3% ,23.2% in Taxol + RT group respectively. There was significant difference between two groups in median survival time (MST) (P

Objective:To explore the effect of inhibiting mdr1 by antisense technology on radiosensitivity in nasopharyngeal carcinoma cell line(CNE). Methods:There were four groups in the study:control group,lipofectin group,sense oligodexynucleotides(SODN) group,and antisense oligodexynucleotides(ASODN) group. The expression of mdr1 was detected by RT-PCR. Cellular response to irradiation was evaluated by the colony forming test. Methylguanine-DNA methyltransferase(MGMT)protein expression was determined by immunohistochemical staining. Results:ASODN group could significantly decrease the proliferation rate and downregulate the expression of MGMT of irradiated nasopharyngeal carcinoma cells(vs lipofectin group or SODN group,P