ObjectiveTo explore the effectiveness of feedforward control mode on improving occupational burnout among operating room nurses through theoretical research and clinical practice， with a view to promoting their physical and mental health and enhancing the quality of surgical nursing. MethodsA total of 440 operating room nurses from different regions， scales， and nursing experiences in Shaanxi Province from November 2023 to December 2023 were randomly divided into an experimental group and a control group， with 220 nurses in each group. While the control group received routine intervention measures， the experimental group introduced a feedforward control mode based on the control group， with “emotional exhaustion，” “depersonalization，”and“personal achievement” as observation indicators. ResultsThe incidence of occupational burnout in the experimental group was 11.4%， while that in the control group was 20.0%. The experimental group showed a significantly lower incidence than the control group （P=0.013）. ConclusionThe feedforward control mode can significantly alleviate nurses’ sense of job burnout， promote the improvement of surgical nursing quality， as well as continuously improve the scientific rigor， advancement， and humanistic nature of nursing services， which is conducive to building a harmonious and efficient nursing team. The spirit of teamwork， reflected in mutual support， mutual trust， and joint efforts for surgical success and patient health， has become an important component of nurses’ professional ethics.

BackgroundThe prevalence of depression is elevated in elderly patients with diabetes， underscoring the critical importance of implementing early psychological intervention to improve their clinical outcomes.However， the cognitive function level of patients may limit the implementation of these intervention methods. While prior research has predominantly focused on interventions such as cognitive behavioral therapy and interpersonal psychotherapy to mitigate the depressive symptoms in this demographic， the exploration of group reminiscence therapy as a therapeutic approach remains underrepresented in the existing literature. ObjectiveTo investigate the effect of group reminiscence therapy on depressive symptoms， cognitive function， and quality of life in elderly patients with diabetes and mild to moderate depression， so as to provide valuable insights for psychological intervention of elderly diabetic patients. MethodsA randomized controlled trial was conducted to recruit 80 elderly diabetic patients with mild to moderate depression attending the endocrine clinic of Northeast International Hospital from June 2022 to December 2023. Subjects were randomly allocated to either the study group or the control group using the random number table method， with 40 cases in each group. Both groups received standard diabetes care and mental health education. Additionally， the study group participated in an 8-week group reminiscence therapy intervention， convening once weekly for 1.5 hours per session. Hamilton Depression Scale-24 item （HAMD-24）， Wisconsin Card Sorting Test （WCST）， Verbal Fluency Test （VFT）， Stroop Color Word Test （SCWT） and Generic Quality of Life Inventory-74 （GQOLI-74） were administered before and after intervention. ResultsAfter intervention， the study group exhibited a significantly lower HAMD-24 score compared with the control group （F=13.908， P<0.01）. The study group also demonstrated better performance in cognitive assessments， as evidenced by increased percentages of correct responses and conceptual-level responses on the WCST， a greater number of correct words on the VFT， and a higher number of accurate responses on the SCWT， all in contrast to the control group （F=14.672， 17.000， 13.309， 21.672， P<0.01）. The study group reported superior quality of life outcomes， with higher total GQOLI-74 scores and significant improvements in the domains of physical function， social function， psychological function， and material life status compared with the control group （F=33.098， 41.224， 16.320， 19.432， P<0.01）. ConclusionGroup reminiscence therapy has the potential to alleviate depressive symptoms， enhance cognitive function and improve quality of life in elderly diabetic patients with mild to moderate depression.

OBJECTIVE To comprehensively evaluate the quality of adverse drug reaction （ADR） reports in clinical departments or ward （hereinafter referred to as “department”） based on game theory combinatorial weighting-technique for order preference by similarity to ideal solution （TOPSIS）-rank-sum ratio （RSR） method， providing a reference for the further standardization of ADR reporting. METHODS Based on relevant documents and scoring criteria， the ADR report quality evaluation standards previously developed by our team were modified. Using game theory principles， the fusion of subjective and objective weights for each indicator was determined. A game theory combinatorial weighting-TOPSIS-RSR model was developed to evaluate and categorize the quality of raw ADR reports submitted by departments to the pharmacy department at Bozhou Hospital of Anhui Medical University. RESULTS A total of 222 ADR reports from 23 departments were included. The game theory combinatorial weighting method identifies weak points in management， such as ADR symptoms and signs， the description of underlying diseases， timing of ADR， by optimizing the weightings of the indicators. The TOPSIS-RSR method calculates that the mean relative closeness of the departments was 0.401 7， indicating that the overall report quality ranged from moderate to substandard. 20095） Three departments， including neurosurgery， demonstrated medium reporting quality [estinate closeness （Ĉ）i ≥0.506]， while two departments， such as the respiratory department，were rated as unqualified （Ĉi＜0.278）. The remaining departments were all deemed qualified （0.278≤ Ĉi＜0.506）. CONCLUSIONS The developed game theory combinatorial weighting-TOPSIS-RSR method provides an effective approach for the quality evaluation of ADR reports， which not only balances subjective and objective weights but also facilitates comparisons among different departments. There is still room for improvement in the ADR report quality at the hospital.

With the increasing demand for dynamic,real-time and rapid qualitative analysis of chemical composition in areas such as emergency response and space exploration,chip-scale mass spectrometers have attracted significant attention.These devices are expected to drive the integration of mass spectrometry with micro/nano-fabrication and intelligent sensing technologies,fostering profound innovation and breakthroughs in analytical chemistry.As an excellent mass analyzer,the ion trap exhibits numerous advantages,and its miniaturization creates favorable conditions for the high-density integration of miniature mass spectrometers.However,the reduction in ion storage capacity may compromise its sensitivity and dynamic range,rendering the study of ion unidirectional ejection in highly miniaturized ion traps of significant practical importance.In this work,a research was conducted on achieving efficient ion unidirectional ejection while maintaining high mass resolution in the extremely miniature hyperbolic linear ion trap(M-HLIT)with a field radius of 1 mm,and an electric field compensation method was proposed,which combined asymmetric electrode stretching and unbalanced RF voltage to achieve high-precision optimization of the electric field composition.Simulations showed that in an ideal structure,this method achieved 100％unidirectional ejection efficiency with the mass resolution of 518,significantly outperforming traditional asymmetric structure method(365)and unbalanced voltage method(321).Following the introduction of ion ejection slots,further optimization through bidirectional stretching and electrical parameters improved the resolution to 790 while maintaining a unidirectional ejection efficiency of 93％.This method eliminated the requirement for additional excitation voltage,offering an ideal solution for the miniature mass analyzer with high detection performance of chip-level mass spectrometers.

Objective To explore the relationship between vancomycin therapeutic drug monitoring(TDM)and short-term and long-term prognosis in patients with sepsis.Methods Clinical data of sepsis patients treated in the intensive care unit were obtained from the MIMIC-Ⅳ database.Patients were divided into the TDM group and the non-TDM group based on the status of vancomycin TDM.A 1∶1 propensity score matching(PSM)was employed.The association between vancomycin TDM and the risk of 28 d and 90 d mortality of patients before and after PSM was analyzed using Kaplan-Meier survival curves and multivariate Cox regression models.Meanwhile,the relationship between vancomycin TDM and the risk of mortality within 28 d and 90 d was investigated.Results A total of 3,525 patients were included,with 2,474 in the TDM group and 1,051 in the non-TDM group.After PSM,848 patients were included in each group.The mortality rates at 28 d and 90 d in the TDM group were lower than those in the non-TDM group both before and after PSM(P＜0.005).The Kaplan-Meier curve results showed that the survival rates at 28 d and 90 d in the TDM group were higher than those in the non-TDM group both before and after PSM(P＜0.001).Multivariate COX regression analysis showed that vancomycin TDM was an independent protective factor against mortality risk at 28 d[HR=0.74,95％CI(0.65,0.84),P＜0.001]and 90 d[HR=0.79,95％CI(0.70,0.89),P＜0.001]in sepsis patients.Conclusion Vancomycin TDM reduces the short-term and long-term mortality risk in sepsis patients and is worthy of clinical promotion and application.

Objective To investigate the clinical characteristics of women with abnormal uterine bleeding(AUB)in sub-plateau regions and analyze the factors affecting their treatment methods.Methods AUB patients who were hospitalized from Jan 1,2018 to Dec 31,2022,in a sub-plateau region(Yongping County People's Hospital of Yunnan Province)with an average altitude of 1 620 meters were selected.The general clinical characteristics of the patients were summarized,and patients were classified into two categories(with or without uterine structural lesion)and nine subtypes(PALM-COEIN)according to the FIGO recommended etiological classification guidelines.Then the patients were divided into groups based on the presence or absence of uterine structural lesions,ethnic group(Han and minority),conservative drug treatment and surgical treatment groups,blood transfusion and non-blood transfusion groups.Binary Logistic regression analysis was used to identify factors affecting treatment methods.Results A total of 481 AUB patients enrolled,and the delayed consultation rate was as high as 80.46%,and the proportion of overweight and obese patients was 49.90%,which was higher than the average level among Chinese women.The main cause was AUB-O(AUB-ovulatory dysfunction),accounting for 78.59%of cases,the proportion of patients with delayed medical treatment was higher than those without delayed medical treatment(82.17%vs.74.47%).Patients who received blood transfusion were significantly younger,had lower hemoglobin(HGB)levels,fewer pregnancies,and lower BMI compared to those in the non-blood transfusion group(P<0.05).Univariate analysis showed that the surgical treatment group had older age,longer onset time,higher HGB levels,more pregnancies and deliveries,higher BMI,a higher proportion of Han ethnicity patients,lower rates of non-blood transfusion,higher rates of hypertension,and more uterine structural lesions compared to the conservative drug treatment group.Multivariate regression analysis revealed that blood transfusion treatment reduced the probability of surgical treatment.Age and uterine structural lesions were risk factors for requiring surgical treatment,for each additional year of age,the risk of undergoing surgical treatment increased by 10%.The risk of requiring surgical treatment for patients with uterine structural lesions was 2.987 times higher than for those without.Conclusion AUB patients in this sub-plateau regions have a high rate of delayed consultation and a high proportion of overweight and obesity,with AUB-O being the primary cause.Older age and the presence of uterine structural lesions were risk factors for requiring surgical treatment.

BACKGROUND:Small intestinal submucosal acellular matrix has been proven by clinical and basic studies to be useful for urethral repair and reconstruction.However,when applied alone,it has problems such as slow growth of host cells,difficulty in survival due to insufficient stent vascularization,and obstruction of reconstructed urethral stricture,and is only suitable for short urethral stricture.OBJECTIVE:To investigate the feasibility of constructing tissue engineered urethra with acellular matrix combined with exosomes in small intestinal submucosa.METHODS:Exosomes were isolated from rabbit bone marrow mesenchymal stem cells.The porcine small intestinal submucosal acellular matrix was prepared,and exosomes were loaded on the porcine small intestinal submucosal acellular matrix.The extracellular stroma-exosome(PKH26 dye labeled)complex of small intestinal submucosa was co-cultured with umbilical vein endothelial cells for 12 hours to observe the uptake of exosomes.The umbilical vein endothelial cells with good growth status were selected and cultured in three groups:the blank group was cultured routinely.The control group was added with small intestinal submucosal acellular matrix,and the experimental group was added with small intestinal submucosal acellular stromat-exosome complex.The angiogenesis was evaluated by scratch test,tube formation test,and angiogenic factor secretion test.Thirty New Zealand white rabbits were selected to establish a long(3 cm)urethral defect model,and the intervention was divided into three groups by random number table method(n=10).The single material group was implanted with small intestinal submucosal acellular matrix.The control group was implanted with small intestinal submucosal acellular matrix-bone marrow mesenchymal stem cell complex.The experimental group was implanted with small intestinal submucosal acellular matrix-exosome complex.Urethrography,urodynamic examination,and pathological observation of reconstructed urethral sections were performed 12 weeks after implantation.RESULTS AND CONCLUSION:(1)Exosomes in the acellular matrix of small intestinal submucosa could be taken up by umbilical vein endothelial cells under the fluorescence microscope.(2)Compared with the blank group and the control group,the experimental group could promote the migration of umbilical vein endothelial cells,angiogenesis ability,and the secretion of angiogenic factors vascular endothelial growth factor,hepatocyte growth factor,and interleukin 8(P<0.05).(3)Urethrography results showed that all 10 rabbits in the single material group had urethral stenosis;2 out of 10 rabbits in the control group had urethral stenosis,and none of the 10 rabbits in the experimental group had urethral stenosis.The results of urodynamic examination showed that the maximum urethral pressure at 12 weeks after implantation was higher in the single material group than before surgery(P<0.05),and the maximum urethral pressure at 12 weeks after implantation was lower in the control group and the experimental group than in the blank group(P<0.05).Hematoxylin-eosin,Masson and immunohistochemical staining showed that in the single material group,there were obvious regenerated epidermis,a small amount of subcutaneous smooth muscle and blood vessels,mainly fibrous tissue hyperplasia,accompanied by obvious inflammatory cell infiltration.In the control group,there were more complete regenerated epithelium and a small amount of collagen,a large number of subcutaneous blood vessels and smooth muscle,accompanied by inflammatory cell infiltration.The experimental group showed complete regenerated epidermis,a large number of subcutaneous blood vessels and smooth muscle,and no obvious inflammatory cell infiltration.The positive expressions of AE1/AE3,alpha smooth muscle actin,and CD31 in the experimental group were higher than those in the single material group and the control group(P<0.05).(4)The results show that the small intestinal submucosal acellular matrix-exosome tissue engineered urethra can repair the urethral defect by promoting angiogenesis.

Objective To evaluate the efficacy and safety of a subanesthetic dose of esketamine in prevent-ing postoperative nausea and vomiting following carboprost administration during cesarean section.Methods One hundred thirty-five full-term singleton parturients,ASAⅠ-Ⅱ,aged 20-40 years,scheduled for elective cesarean section,were recruited.They were randomly assigned to three groups(n=45):the normal saline group(Group C),the palonosetron group(Group P),and the esketamine group(Group E).All parturients received combined spinal-epidural anesthesia,achieving a sensory level of T5-7.Following umbilical cord clamping,carboprost tromethamine was injected into the uterine body.Concurrently,Group C received intravenous normal saline,Group P received palonosetron,and Group E received esketamine.The incidence of nausea,vomiting,and chest discomfort was recorded from the time of carboprost administration until the parturients left the operating theater.Additionally,mean arterial pressure(MAP),heart rate(HR),oxygen saturation(SpO2),and Ramsay sedation scores were mea-sured at six time points:upon entering the room(T0),1 minute before intervention(T1),2 minutes(T2),5 min-utes(T3),15 minutes(T4),and 30 minutes(T5)post-intervention.Maternal satisfaction was evaluated as the parturients left the operating room.Results Compared with group C,the incidence of nausea,vomiting,and chest discomfort in group E was significantly lower(all P<0.05).Additionally,group E showed a significantly lower incidence of nausea and chest discomfort compared to group P(all P<0.05).In terms of maternal satisfaction,group E reported significantly higher levels than both group C(P<0.05)and group P(P<0.05).No significant differences were observed in the incidence of nausea,vomiting,chest discomfort,or satisfaction between the other groups(P>0.05).Conclusion The administration of subanesthetic doses of esketamine significantly decreases the incidence of adverse effects such as nausea,vomiting,and chest tightness that are commonly associated with carboprost tromethamine use during cesarean sections,thereby enhancing patient satisfaction in the perioperative period.