OBJECTIVE To construct a closed-loop management model for externally dispensed intravenous prescriptions， and to provide reference for standardized management of externally dispensed intravenous prescriptions. METHODS Based on the Expert Consensus on Closed-loop Management of Externally Dispensed Intravenous Prescriptions in Guangxi Zhuang Autonomous Region previously formulated by our hospital， risk points during the entire process were systematically identified through multidisciplinary team brainstorming and a fishbone diagram. A series of strategies were subsequently formulated and implemented， including qualifying designated external dispensing pharmacies and the drug catalogs， operating and maintaining the hospital information system and the Pharmacy Intravenous Admixture Service （PIVAS） intelligent management platform， and strengthening differentiated training for staff in the whole workflow. A whole-process closed-loop management system was constructed with PIVAS as the co re hub and the daytime chemotherapy center as the safety terminal. RESULTS A total of 3 cooperating pharmacies and an initial drug list comprising 35 product specifications were selected. A closed‑loop management process encompassing hospital outpatient prescribing， patient drug purchase in designated pharmacies， PIVAS drug dispensing， and medication use in daytime chemotherapy center was successfully established. This system enabled the mandatory grouping and association of externally dispensed intravenous prescriptions with in-hospital diluents， full-process verification based on drug traceability codes， intelligent monitoring of infusion parameters， and whole-process data traceability. CONCLUSIONS The constructed model effectively resolves the coordination and safety oversight during the use of externally dispensed intravenous drugs from out-of-hospital circulation to in-hospital use， and has preliminarily enabled procedural standardization， whole-process information traceability， and proactive control of medication risks.

Objective:To establish a quantitative analysis of multi-components by single marker(QAMS)for the determination of 6 alkaloid components,which is benzoylmesaconine,benzoyl-hypaconine,benzoylaconine,mesaconitine,hypaconitine,and aconitine in Zhachong Shisanwei Pills,and prove the scientificity and feasibility of the method in the quality analysis.Methods:The chromatographic separation was performed on an Agilent Eclipse Plus C18(250 mm×4.6 mm,5 μm)with gradient elution using 0.1 mol·L-1 ammonium acetate(0.5 mL of gla-cial acetic acid per 1 000 mL)(A)-acetonitrile:tetrahydrofuran(25∶15)(B),as the mobile phase(0-50 min,18%B-28%B),the detection wavelength was switched from 235 nm,the column temperature was kept at 40℃and the flow rate was 1.0 mL·min-1.The relative correction factors(fs/i)were established with the other 5 compo-nents to be measured using benzoylaconine as the internal reference,which were used to calculate the mass fraction of each component.At the same time,the mass fractions of the 6 effective constituents in Zhachong Shisanwei Pills were calculated by the external standard method(ESM).By comparing the content results of ESMand QAMS,the accura-cy of QAMS method were evaluated.Results:The relative correction factors(fs/i)of benzoylmesaconine,benzoylhyp-aconine,mesaconitine,hypaconitine,and aconitine in Mongolian medicine Zhachong Shisanwei Pills were reproduci-ble with good reproducibility,which were 0.680 4,0.450 6,0.850 8,0.676 1 and 0.757 0,the result obtained by QAMS approximated those obtained by external standard method(ESM).Conclusion:The method is simple,stable and reproducible,and can be used for the quality control of 6 alkaloid components in Zhachong Shisanwei Pills.

Objective This study aimed to investigate the antimicrobial resistance profiles of bacterial strains isolated from pediatric intensive care units(PICU)in China for better antimicrobial therapy.Methods Clinical isolates were collected from 17 institutions,including tertiary care children's hospitals and pediatric department of tertiary general hospitals in China from January 1,2020 to December 31,2022.Antimicrobial susceptibility testing was carried out according to a unified protocol using Kirby-Bauer method or automated systems.Results were interpreted according to the breakpoints released by the Clinical and Laboratory Standards Institute(CLSI)in 2020.Results A total of 10 688 isolates were collected,including gram-positive organisms(39.2％)and gram-negative organisms(60.8％).The top three organisms were S.aureus(13.6％,1 453/10 688),A.baumannii(10.0％,1 067/10 688),and coagulase-negative Staphylococcus(9.9％,1 058/10 688).Multi-drug resistant organisms(MDROs)were very common in children.The prevalence of methicillin-resistant Staphylococcus aureus(MRSA),carbapenem-resistant Enterobacterales(CRE),carbapenem-resistant E.coli,carbapenem-resistant K.pneumoniae(CRKP),carbapenem-resistant A.baumannii(CRAB),and carbapenem-resistant P.aeruginosa(CRPA)was 41.1％,19.4％,8.8％,30.9％,67.4％,and 28.8％,respectively.Overall,more than 50％of Enterobacteriales isolates were resistant to cephalosporins,while nearly 25％of Enterobacteriales isolates were resistant to carbapenems.MDROs were highly resistant to commonly used antibiotics.More than 80％of CRE and CRAB strains were resistant to all beta-lactam antibiotics.CRE and CRAB showed low resistance rates to tigecycline and polymyxin.CRPA showed lower resistance rates to piperacillin,beta-lactamase inhibitor combinations than the resistance rates to third and fourth generation cephalosporins.All of the Staphylococcus and Enterococcus isolates were susceptible to vancomycin and tigecycline.None of PRSP strains isolated from meningitis and nonmeningitis samples were resistant to rifampicin,vancomycin,or linezolid.The prevalence of β-lactamase-negative ampicillin-resistant(BLNAR)strains was 43.3％in Haemophilus influenzae.Conclusions MDROs were prevalent in PICU.It is necessary to establish an effective multidisciplinary team(MDT)to control the antimicrobial resistance.

Purpose To evaluate the long-term efficacy of radiofrequency ablation(RFA)for T1N0M0 papillary thyroid carcinoma(PTC)with rich blood supply and poor blood supply.Materials and Methods Clinical data,ultrasound and contrast-enhanced ultrasound(CEUS)images,RFA parameters,and postoperative follow-up indicators of 375 T1N0M0 PTC patients who received RFA from June 2014 to December 2018 were retrospectively collected.The propensity score matching method was used to match the baseline data of the two groups in a 1:1 ratio,finally a total of 212 patients were included in the study.The RFA parameters,volume,tumor disappearance,and local tumor progression(LTP)were compared between the groups.Besides,the correlation between rich blood supply and LTP was analyzed using multivariate COX regression.Results According to the peak intensity displayed by preoperative CEUS,all lesions were divided into a group with rich blood supply(n=129)and another with poor blood supply(n=246).After a mean follow-up time of(84.48±14.44)months,the tumor disappearance in the rich blood supply group was 87.74%,while in the poor blood supply group it was 88.68%,and there was no statistically significant difference(Z=0.05,P=0.831).There were 10 cases of LTP in the rich blood supply group(6 cases of residual cancer and 4 cases of new cancer),and 6 cases of LTP in the poor blood supply group(2 cases of residual cancer and 4 cases of new cancer).The LTP rates of the two groups were 9.43%and 5.67%,with no statistically significant difference(x2=1.08,P=0.298).The Kaplan-Meier survival curve showed no statistically significant difference in progression free survival between both groups(P=0.265).The adjusted multivariate COX proportional risk model analysis showed that rich blood supply was no association with LTP(HR=1.54,P=0.409).Conclusion RFA for T1N0M0 PTC with rich blood supply can achieve effective ablation,and its long-term efficacy is similar to that of poor blood supply.RFA can serve as an effective alternative treatment for T1N0M0 PTC patients with different blood supply.

Objective:To establish a quantitative analysis of multi-components by single marker(QAMS)for the determination of 6 alkaloid components,which is benzoylmesaconine,benzoyl-hypaconine,benzoylaconine,mesaconitine,hypaconitine,and aconitine in Zhachong Shisanwei Pills,and prove the scientificity and feasibility of the method in the quality analysis.Methods:The chromatographic separation was performed on an Agilent Eclipse Plus C18(250 mm×4.6 mm,5 μm)with gradient elution using 0.1 mol·L-1 ammonium acetate(0.5 mL of gla-cial acetic acid per 1 000 mL)(A)-acetonitrile:tetrahydrofuran(25∶15)(B),as the mobile phase(0-50 min,18%B-28%B),the detection wavelength was switched from 235 nm,the column temperature was kept at 40℃and the flow rate was 1.0 mL·min-1.The relative correction factors(fs/i)were established with the other 5 compo-nents to be measured using benzoylaconine as the internal reference,which were used to calculate the mass fraction of each component.At the same time,the mass fractions of the 6 effective constituents in Zhachong Shisanwei Pills were calculated by the external standard method(ESM).By comparing the content results of ESMand QAMS,the accura-cy of QAMS method were evaluated.Results:The relative correction factors(fs/i)of benzoylmesaconine,benzoylhyp-aconine,mesaconitine,hypaconitine,and aconitine in Mongolian medicine Zhachong Shisanwei Pills were reproduci-ble with good reproducibility,which were 0.680 4,0.450 6,0.850 8,0.676 1 and 0.757 0,the result obtained by QAMS approximated those obtained by external standard method(ESM).Conclusion:The method is simple,stable and reproducible,and can be used for the quality control of 6 alkaloid components in Zhachong Shisanwei Pills.

Objective This study aimed to investigate the antimicrobial resistance profiles of bacterial strains isolated from pediatric intensive care units(PICU)in China for better antimicrobial therapy.Methods Clinical isolates were collected from 17 institutions,including tertiary care children's hospitals and pediatric department of tertiary general hospitals in China from January 1,2020 to December 31,2022.Antimicrobial susceptibility testing was carried out according to a unified protocol using Kirby-Bauer method or automated systems.Results were interpreted according to the breakpoints released by the Clinical and Laboratory Standards Institute(CLSI)in 2020.Results A total of 10 688 isolates were collected,including gram-positive organisms(39.2％)and gram-negative organisms(60.8％).The top three organisms were S.aureus(13.6％,1 453/10 688),A.baumannii(10.0％,1 067/10 688),and coagulase-negative Staphylococcus(9.9％,1 058/10 688).Multi-drug resistant organisms(MDROs)were very common in children.The prevalence of methicillin-resistant Staphylococcus aureus(MRSA),carbapenem-resistant Enterobacterales(CRE),carbapenem-resistant E.coli,carbapenem-resistant K.pneumoniae(CRKP),carbapenem-resistant A.baumannii(CRAB),and carbapenem-resistant P.aeruginosa(CRPA)was 41.1％,19.4％,8.8％,30.9％,67.4％,and 28.8％,respectively.Overall,more than 50％of Enterobacteriales isolates were resistant to cephalosporins,while nearly 25％of Enterobacteriales isolates were resistant to carbapenems.MDROs were highly resistant to commonly used antibiotics.More than 80％of CRE and CRAB strains were resistant to all beta-lactam antibiotics.CRE and CRAB showed low resistance rates to tigecycline and polymyxin.CRPA showed lower resistance rates to piperacillin,beta-lactamase inhibitor combinations than the resistance rates to third and fourth generation cephalosporins.All of the Staphylococcus and Enterococcus isolates were susceptible to vancomycin and tigecycline.None of PRSP strains isolated from meningitis and nonmeningitis samples were resistant to rifampicin,vancomycin,or linezolid.The prevalence of β-lactamase-negative ampicillin-resistant(BLNAR)strains was 43.3％in Haemophilus influenzae.Conclusions MDROs were prevalent in PICU.It is necessary to establish an effective multidisciplinary team(MDT)to control the antimicrobial resistance.

Purpose To evaluate the long-term efficacy of radiofrequency ablation(RFA)for T1N0M0 papillary thyroid carcinoma(PTC)with rich blood supply and poor blood supply.Materials and Methods Clinical data,ultrasound and contrast-enhanced ultrasound(CEUS)images,RFA parameters,and postoperative follow-up indicators of 375 T1N0M0 PTC patients who received RFA from June 2014 to December 2018 were retrospectively collected.The propensity score matching method was used to match the baseline data of the two groups in a 1:1 ratio,finally a total of 212 patients were included in the study.The RFA parameters,volume,tumor disappearance,and local tumor progression(LTP)were compared between the groups.Besides,the correlation between rich blood supply and LTP was analyzed using multivariate COX regression.Results According to the peak intensity displayed by preoperative CEUS,all lesions were divided into a group with rich blood supply(n=129)and another with poor blood supply(n=246).After a mean follow-up time of(84.48±14.44)months,the tumor disappearance in the rich blood supply group was 87.74%,while in the poor blood supply group it was 88.68%,and there was no statistically significant difference(Z=0.05,P=0.831).There were 10 cases of LTP in the rich blood supply group(6 cases of residual cancer and 4 cases of new cancer),and 6 cases of LTP in the poor blood supply group(2 cases of residual cancer and 4 cases of new cancer).The LTP rates of the two groups were 9.43%and 5.67%,with no statistically significant difference(x2=1.08,P=0.298).The Kaplan-Meier survival curve showed no statistically significant difference in progression free survival between both groups(P=0.265).The adjusted multivariate COX proportional risk model analysis showed that rich blood supply was no association with LTP(HR=1.54,P=0.409).Conclusion RFA for T1N0M0 PTC with rich blood supply can achieve effective ablation,and its long-term efficacy is similar to that of poor blood supply.RFA can serve as an effective alternative treatment for T1N0M0 PTC patients with different blood supply.

Objective:To analyze the correlation between Cutibacterium acnes (C. acne) ribotypes (RTs) on the skin surface and epidermal barrier function in patients with acne vulgaris.Methods:Sixty patients with acne vulgaris were enrolled in this prospective study from the Department of Dermatology, the Affiliated Hospital of Southwest Medical University from November 2018 to May 2019, including 23 males and 37 females, aged (21.6±2.6) years. According to the General Acne Grading System (GAGS) score, the patients were divided into three groups: 28 mild cases, 14 moderate cases, and 18 severe or above cases. Twenty healthy controls aged 18 to 30 years were recruited in the same period from the community, including 5 males and 15 females, aged (24.2±2.3) years. The VISIA skin testing device was used to detect the percentage of red areas and porphyrins on the facial skin of all subjects. The hydration of the stratum corneum (SCH), transepidermal water loss (TEWL), PH value and the skin surface sebum level on the facial skin were detected by CK system. The RTs of C. acne were further analyzed based on the 16s rDNA sequences. The correlation between the abundance of each RT and epidermal barrier function was analyzed using Pearson correlation analysis.Results:Compared with the healthy controls, the percentage of porphyrins [(41.69±23.10) % vs (61.33±24.27) %, t=2.98, P<0.01] and the percentage of red area [(26.71±17.13) % vs (67.97±15.22) %, t=10.78, P<0.01] decreased in the acne vulgaris patients. Meanwhile, the patients of different severity levels had decreased SCH ( P<0.01), but increased TEWL, pH value, and the skin surface sebum level ( P<0.05) compared to healthy controls. Six different RTs (RT1, RT2, RT7, RT12, RT13 and RT14) were found in both healthy controls and acne vulgaris patients with varying degrees of severity, while there was no statistically significant difference of C. acne abundance between the mild patients and the controls ( P>0.05). As the severity of disease increased, the abundance of the above RTs showed a changing trend, with the gradually decreasing abundance of RT1 and the gradually increasing abundance of RT2, RT7, RT12, RT13, and RT14 (all P<0.05). The abundance of RT1 was negatively correlated with pH value ( r=-0.33, P=0.04) and GAGS score ( r=-0.39, P=0.01). The abundance of RT2 ( r=0.39, P=0.02) and RT7 ( r=0.39, P=0.01) were positively correlated with GAGS score. The abundance of RT13 was negatively correlated with SCH ( r=-0.34, P=0.02) and positively correlated with TEWL ( r=0.30, P=0.05). Conclusions:As the severity of disease increases, the abundance of various RTs of C. acne on the skin surface of acne vulgaris patients shows a trend of gradually increasing or decreasing, and the abundance of differential RTs of C. acne is closely related to the function of the epidermal barrier.

IgG4-related disease (IgG4-RD) involving the ureter manifested as a ureteral tumor is rare. This paper reports a case of a female patient who was found with a mass at the left ureteropelvic junction for one week during physical examination. Urinary ultrasound and MRI showed a 3 cm mass at the left ureteropelvic junction with hydronephrosis, and the serum level of IgG4 was elevated. B-ultrasonic guided biopsy of the mass was performed. Histopathological findings showed lymphoplasmic infiltration and the ratio of IgG4/IgG positive cells>0.5. We finally diagnosed IgG4-RD and started using glucocorticoid for her treatment. One month later, CT-scan revealed that the tumor became smaller and the serum IgG4 decreased to the normal range.

Ectopic prostate is rare.This paper reports a case of a male patient who was found a mass in the pelvis for 20 days during physical examination.Urinary ultrasound, CT scan and MRI showed a pelvic mass that was about 4 cm×5 cm in size.Serum total prostate specific antigen (tPSA) was 6.09 ng/ml, and free PSA (fPSA) was 1.97 ng/ml. B-ultrasonic guided biopsy of the prostate and the mass was performed. Pathological findings suggest benign prostatic hyperplasia, weakly positive P504S and positive 34βE12. Pelvic mass is the prostate tissue with negative P504S and positive 34βE12. Finally, the ectopic prostate was diagnosed. Although it is rare, ectopic prostate should also be considered as a differential diagnosis of the pelvic tumor.