Objective To compare the efficacy and safety of flexible ureteral lithotripsy(FURL)and non-retrograde percutaneous nephrolithotomy(NR-PCNL)for treating1.5-2.0 cm upper ureteral stones.Methods We retrospectively analyzed clinical data of 130 patients with upper ureteral stones treated between October 2022 and October 2024.Sixty-two patients underwent FURL and 68 underwent NR-PCNL.Comparisons included operative time,pre-and postoperative changes in white blood cells(WBC),hemoglobin(Hb),and creatinine(Cr),postoperative C-reactive protein(CRP)levels,stone-free rate after primary surgery,postoperative hospitalization duration,pain scores,complications,and need for auxiliary treatments.Results Compared to the FURL group,the NR-PCNL group demonstrated advantages in operative time[54.0(44.3,69.3)min vs.82.5(66.0,101.0)min,Z=-5.565,P<0.001],WBC elevation[1.9(0.5,3.5)×109/L vs.4.5(3.0,6.0)×109/L,Z=-4.528,P<0.001],and secondary surgery rate[0%(0/68)vs.14.5%(9/62),P<0.001].The FURL group showed lower Hb reduction[3.0(2.0,6.3)g/L vs.8.0(5.0,11.0)g/L,Z=-4.262,P<0.001],less postoperative Visual Analogue Scale(VAS)pain scores[1.0(1.0,2.0)points vs.2.0(1.0,2.0)points,Z=-2.840,P=0.005],and shorter hospitalization duration[2.0(1.0,2.0)d vs.3.0(2.0,3.0)d,Z=-5.815,P<0.001].No significant differences were observed in Cr elevation,CRP levels,stone-free rate after primary surgery,complications,or analgesic requirements(P≥0.05).Conclusions Both NR-PCNL and FURL are safe and effective for 1.5-2.0 cm upper ureteral stones.FURL offers better patient comfort,while NR-PCNL shows superior overall safety.

OBJECTIVE T o analyze the current situation and characteristics of hospital-associated infection in a psy-chiatric hospital,providing references for formulation of control measures for hospital-associated infection.METHODS A retrospective analysis was conducted on hospital-associated infection data from Shanghai Mental Health Center between Jan.1,2019,and Oct.31,2024.The infection rates and infection sites across different years,patient populations,and departments were analyzed.RESULTS A total of 47 051 inpatients were investiga-ted,with 1 798 cases of hospital-associated infections,resulting in an infection rate of 3.82％.The highest inci-dence rate was observed in 2020(4.13％).The top three departments with the highest incidence rates were the in-fectious disease department(12.13％),geriatric psychiatry(7.67％),and the Traditional Chinese Medicine De-partment department(4.90％).The primary infection sites were the lower respiratory tract(57.06％),urinary tract(18.24％),skin and soft tissue(14.29％).The incidence rate was higher in males(5.32％)than in females(2.72％)(P＜0.001).Statistically significant differences were found in the incidence rates among different age groups(P＜0.001),with the highest rate observed in patients aged over 90 years(17.11％).The lowest infection rate was found in patients hospitalized for less than 60 days(0.69％),while the highest was in those hospitalized for more than 1 000 days(49.94％).CONCLUSIONS The patients in psychiatric hospitals are susceptible to infec-tions in the respiratory tract,urinary tract,skin and soft tissue.Targeted prevention and control measures can be implemented based on high-risk factors such as age,length of stay,and gender to reduce the occurrence of in-fections.

Objective To establish a quantifiable quality control index system for infection management in neonatal specialty hospitals for the comprehensive evaluation of neonatal healthcare-associated infection(HAI)management quality,and to promote the continuous enhancement and improvement of neonatal HAI management quality.Methods The framework of the index system was preliminarily established through literature research and focus group discussion,the indexes were repeatedly screened using Delphi expert consultation approach,and the weights of each index were determined using the analytic hierarchy process.The empirical study of the established index sys-tem was conducted using TOPSIS method and rank sum ratio method.Results Three rounds of expert consultation were conducted,and the effective response rate of the questionnaire was 100％.The authoritative coefficient of the third round of expert consultation was 0.89,and the Kendall's coefficient of concordance for expert opinion was 0.322.The established index system included 3 first-level indexes,6 second-level indexes,and 16 third-level inde-xes.Thirteen of third-level indexes could be directly obtained from the hospital information system.Conclusion The quality control index system for neonatal HAI management established in this study is relatively scientific,with rational weights and all quantifiable indexes.It can be used for vertical and horizontal evaluations of neonatal HAI management quality,providing a reference for the continuous improvement of neonatal HAI management work.

Objective To investigate the risk factors and intervention measures for surgical site infec-tion following posterolateral approach lumbar fusion surgery.Methods A total of 1 078 patients who under-went posterolateral approach lumbar fusion surgery in the department of spine surgery from January 1,2022 to December 31,2023 were included.Patient related information was collected through the real-time nosocomi-al infection monitoring system,while medical visit information was obtained via the outpatient electronic med-ical record system.Multivariate logistic regression analysis was performed to identify risk factors for surgical site infection.Results Among the 1 078 patients,34 cases(3.15%)developed surgical site infections,while 1 044 cases did not.Multivariate logistic regression analysis revealed that age,smoking,hypertension,diabetes,concurrent hospital stay,operative time,duration of postoperative antimicrobial use after initial surgery,and total antimicrobial use duration were significant risk factors for surgical site infection(P＜0.05).Among the 34 infected patients,the duration of antimicrobial use varied significantly across different infection sites(P＜0.05),with the longest duration observed in patients with deep space infections.Conclusion Targeted surveil-lance of surgical site infections should be reinforced based on these risk factors.Perioperative infection control measures must be strictly implemented to improve the scientific,precise,and standardized management of sur-gical-related nosocomial infections.

OBJECTIVE To detect mutated genes in thyroid cancer using next-generation sequencing(NGS)Panel and analyze genes associated with the prognosis of thyroid cancer.METHODS Samples from 90 newly diagnosed thyroid cancer patients who underwent surgical treatment at Jilin Cancer Hospital from January 2020 to January 2023 were collected.DNA and RNA were extracted from tissue samples and subjected to high-throughput sequencing.Mutated genes were identified,and their correlation with the patients'AJCC TNM staging and prognosis of thyroid cancer was analyzed.RESULTS Several gene mutations,including FN1,SLC34A2,FABP4,SNCA,MATN2,and EIF2AK1,were detected in thyroid cancer.Among them,FN1 mutation was positively correlated with later stages of the AJCC TNM staging,which is closely associated with prognosis.CONCLUSION FN1 gene mutation may serve as a potential genetic biomarker for predicting the prognosis of thyroid cancer.

Objective:To investigate the risk factors for recurrence after modified Chevron osteotomy for hallux valgus.Methods:A total of 86 patients (102 feet) with hallux valgus who underwent modified Chevron operation in Beijing Jishuitan Hospital from December 2018 to February 2021 were retrospectively analyzed. There were 12 males (14 feet) and 74 females (88 feet), aged 50±15 years (range, 18-74 years). There were 36 cases on the right side, 34 on the left side, and 16 on the bilateral side. 4 feet were treated with Chevron osteotomy, 74 feet with modified McBride's osteotomy, 61 feet with Weil osteotomy, 24 feet with Akin osteotomy, and 23 feet with gastrocnemius aponeurotic release. At the last follow-up, hallux valgus angle (HVA) ≤15° was defined as the non-recurrence group after hallux valgus operation, and HVA>15° was defined as the recurrence group after hallux valgus operation. Compare the age, gender, preoperative HVA, the first and second intermetatarsal angles (IMA) before and after operation, the metatarsus adductus angles (MAA) before and after operation, the Meary angles before and after operation, the distal metatarsal articular angles (DMAA) before and after operation, the American Orthopaedic Foot and Ankle Society (AOFAS) forefoot scores before and after operation, and the rotation of the first metatarsal head between the two groups of patients. Include the indicators with statistically significant differences in the binary variable logistic regression analysis to screen for the risk factors of recurrence after modified Chevron operation for hallux valgus.Results:All patients successfully completed the operation and were followed up for 30.3±16.4 months (range, 12-52 months). Postoperative recurrence occurred in 21 feet, and the recurrence rate was 20.6% (21/102). The HVA at the last follow-up was 8.48°±4.52° in the non-recurrence group and 20.68°±3.61° in the recurrence group. In the non-recurrence group, the AOFAS ankle-hindfoot score increased from 60.31±16.62 points preoperatively to 86.89±12.79 points postoperatively ( t=-13.644, P<0.001). In the recurrent group, the AOFAS ankle-hindfoot score increased from 61.71±15.68 points preoperatively to 84.33±18.84 points postoperatively ( t=-6.082, P<0.001). The proportion of patients with preoperative Meary angle> 4° in the non-recurrence group was 52% (10/21), which was lower than 79% (64/81) in the recurrence group, and the difference was statistically significant (χ 2=6.077, P=0.014). The proportion of patients with square type of metatarsal rotation (type A) in the recurrence group was 58%(47/81), which was higher than 33%(7/21) in the non-recurrence group, and the difference was statistically significant (χ 2=4.081, P=0.043). There was no significant difference in gender, age, preoperative HVA, pre- and post-operative IMA, pre- and post-operative DMAA, pre- and post-operative MAA, or preoperative metatarsal rotation type between the two groups ( P>0.05). The results of the logistic regression analysis showed that a preoperative Meary angle ≤ 4° ( OR=3.299, P=0.024) and a non-type A metatarsal rotation pattern after operation ( OR=4.183, P=0.041) were independent risk factors for recurrence after modified Chevron operation for hallux valgus. Conclusion:Hallux valgus patients with a preoperative Meary angle ≤4° and non-type A metatarsal rotation after operation have an increased risk of recurrence following modified Chevron operation.

Objective:To establish a detection method for fatty acid composition and methoxylaniline value in pharmaceutical excipient castor oil.Methods:The detection of fatty acid composition involves pre-test of the sam-ple using the methanol sodium methylation method,followed by direct injection analysis using gas chromatography,and finally calculating the content of each fatty acid composition using the area normalization method with correction factors.The detection of methoxylaniline value is achieved by dissolving and diluting the sample with isooctane:isopropanol(8∶2,volume ratio),reacting with 4-methoxylaniline,measuring the absorbance at a wavelength of 350 nm,and calculating the methoxylaniline value.Results:Under the composition of fatty acids,the 8 kinds of fatty acids have good separation degree.The methyl ricinoleate and methyl stearate have good linear relationship in the range of 0.1-5.0 mg·mL-1.The repeatabilityand intermediate precision(RSD)ofthe determination results of each fatty acid in the sample are all less than 5%.It is also found that only α-type of linolenic acid is present in castor oil,without γ-type.In the determination of methoxyaniline value,the blank solvent does not interfere with the determination of the sample,and the repeatability RSD is 3.6%.Conclusion:The detection method for fatty acid composition and meth-oxylaniline value established in this article is accurate and reliable,and can be used for the detection of fatty acid composition and methoxylaniline value in pharmaceutical excipient castor oil.

Objective To evaluate the safety and efficacy of non-retrograde intubation combined with selectively tubeless percutaneous nephrolithotomy(NR-ST-PCNL).Methods A retrospective analysis included 213 patients with upper urinary tract stones and hydronephrosis(renal pelvic separation>10 mm)undergoing PCNL at our hospital from October 2023 to June 2025.Patients were divided into Group A(non-retrograde intuba-tion,n=109)and Group B(retrograde intubation,n=104).Primary endpoint was postoperative complications and secondary endpoints included operative time,stone-free rate(SFR),visual analog scale(VAS)pain scores,postoperative hospital stay,and hospitalization costs.Results Group A demonstrated significantly lower rates of postoperative complications[7.3%(8/109)vs.18.2%(19/104),P=0.017],shorter operative time[51.00(37.00,65.00)min vs.71.50(55.00,90.75)min,P<0.001],lower postoperative VAS scores[1.00(0.00,1.00)vs.1.00(0.00,2.00),P=0.008],shorter hospital stay[3.00(2.00,3.00)days vs.4.00(4.00,4.00)days,P<0.001],and lower hospitalization costs[17 028.00(15 178.05,17 934.50)RMB vs.20 653.00(19 176.25,22 630.00)RMB,P<0.001]compared with Group B.There was no significant difference in SFR between groups(P>0.05).Conclusion For patients with upper urinary tract stones and renal pelvic separation>10 mm,NR-ST-PCNL performed by experienced surgeons achieves comparable stone clearance to conventional techniques while reducing complication risk,shortening operative and hospitalization times,and lowering costs.It represents a safe,efficient,and optimized clinical approach.

Objective:To investigate the effect of extracorporeal membrane oxygenation (ECMO) in assisting neonates with complex congenital heart diseases (CHD) and the survival rate of the patients.Methods:A retrospective case-control study was made on 22 newborns with complex CHD assisted by ECMO during the perioperative period in Fuwai Central China Cardiovascular Hospital from January 2018 to June 2024.There were 19 males and 3 females in the newborns included, with an average age of (10.4±8.7) days (range: 1-26 days) and an average weight of (3.1±0.3) kg.Complex CHD included total anomalous pulmonary venous connection in 9 cases (40.9%), interrupted aortic arch and coarctation in 8 cases (36.4%), transposition of great arteries in 3 cases (13.6%), double outlet right ventricle in 1 case (4.5%) and cardiac tumor in 1 case (4.5%).The patients were divided into the <5 d group, 5-12 d group, and >12 d group according to the duration of ECMO support.Data were compared using the t-test or χ2 test. Results:There were 8 cases (36.4%) successfully weaned from ECMO support and 6 cases (27.3%) survived.ECMO support was used routinely in 15 cases (68.2%), and for extracorporeal cardiopulmonary resuscitation in 7 cases (31.8%).The duration of ECMO support was (5.9±3.7) days.There were no statistically differences in age, weight, gender, disease composition, operation time, cardiopulmonary bypass time, cross-clamp time, assistant time, blood routine, liver and kidney function and other biochemical indicators, preoperative cardiac ejection fraction value, procalcitonin, C-reactive protein and other infection indicators between the death group and the survival group (all P>0.05).The highest lactate values 24 hours before [(8.1±5.4) mmol/L] and after ECMO support [(10.5±7.1) mmol/L] in the survival group were significantly lower than those in the death group [(18.7±9.2) mmol/L, (21.3±8.6) mmol/L] ( t=2.606, P=0.018; t=2.729, P=0.013).It was found that the survival rate was 0/9 (0) in the <5 d group, 6/12 (50.0%) in the 5-12 d group, and 0/1 (0) in the >12 d group.The survival rate of the 5-12 d group was the highest, which was significantly higher than that of the <5 d group ( χ2=6.300, P=0.012). Conclusions:ECMO support is an effective treatment for severe circulatory failure in neonates with complex CHD in the perioperative period.The highest lactate levels 24 hours before and after ECMO support affect the survival rate.Patients receiving 5-12 d ECMO support can achieve the highest survival rate.

Objective:To establish a detection method for fatty acid composition and methoxylaniline value in pharmaceutical excipient castor oil.Methods:The detection of fatty acid composition involves pre-test of the sam-ple using the methanol sodium methylation method,followed by direct injection analysis using gas chromatography,and finally calculating the content of each fatty acid composition using the area normalization method with correction factors.The detection of methoxylaniline value is achieved by dissolving and diluting the sample with isooctane:isopropanol(8∶2,volume ratio),reacting with 4-methoxylaniline,measuring the absorbance at a wavelength of 350 nm,and calculating the methoxylaniline value.Results:Under the composition of fatty acids,the 8 kinds of fatty acids have good separation degree.The methyl ricinoleate and methyl stearate have good linear relationship in the range of 0.1-5.0 mg·mL-1.The repeatabilityand intermediate precision(RSD)ofthe determination results of each fatty acid in the sample are all less than 5%.It is also found that only α-type of linolenic acid is present in castor oil,without γ-type.In the determination of methoxyaniline value,the blank solvent does not interfere with the determination of the sample,and the repeatability RSD is 3.6%.Conclusion:The detection method for fatty acid composition and meth-oxylaniline value established in this article is accurate and reliable,and can be used for the detection of fatty acid composition and methoxylaniline value in pharmaceutical excipient castor oil.