OBJECTIVE:To explore the differences of plasma concentration of norvancomycin by HPLC and microbiological method. METHODS:Microbiological method and HPLC were used to detect the plasma concentration of norvancomycin,and clinical test result of both techniques was retrospectively analyzed. RESULTS:There were no significant differences in the plasma concentra-tion of norvancomycin by microbiological method and HPLC(y=0.992 7x+0.155 8,r=0.997 6)(P>0.05). CONCLUSIONS:Both microbiological method and HPLC are more effective and reliable for the plasma concentration detection of norvancomycin. The hospi-tals can choose corresponding method according to their condition when determining plasma concentration of norvancomycin.

Major depressive disorder (MDD) is a mental disorder with high prevalence,morbidity and recurrence rate.The treatment goal of acute stage is to achieve remission,which means asymptomatic.However,clinical treatments and studies found impairment of psychosocial functioning still exists even after remission,which means incomplete recovery.As is known,the normalization of psychosocial functioning is essential to the recovery and the recurrence prevention of MDD.In order to provide reference and guidance for the clinical treatments and studies,we reviewed the related studies and found many kinds of factors influencing the restoration of psychosocial functioning,including demographic factors,diseases related factors,psychological factors,social factors and therapeutic approaches.However,few interior studies focused on the recovery of MDD,and the results of foreign studies were inconsistent,while the understanding of how those factors influence the recovery of MDD is not clear enough.In order to make the characteristics of psychosocial functioning recovery and mechanisms of the influencing factors clear,more in-depth studies should be done in the future.

Gastrointestinal stromal tumor(GIST) is the most common mesenchymal tumor in the digestive system, with potential malignant tendency.With the change of living habits and the update of instruments and equipments, the morbidity and detection rate of GIST have been increased year by year, attracting much attention.However, its clinical manifestations are not characteristic.At present, primary diagnosis is mainly made by imaging techniques such as CT and MRI, and pathological diagnosis is the gold index.In recent years, with the development of immunohistochemical technology and gene technology, immune markers and gene detection play an increasingly important role in the diagnosis of GIST.This paper reviews the progress of GIST diagnostic techniques.

Background: and Purpose Collateral circulation is considered an important factor affecting the risk of stroke, but the factors that affect collateral circulation remain unclear. This study was performed to identify the factors associated with collateral circulation, especially blood lipids. Methods: The study involved patients who had undergone digital subtraction angiography and were confirmed as having severe unilateral stenosis or occlusion of the internal carotid artery (ICA). We classified the collateral circulation status of each patient as good (Grade 3 or 4) or poor (Grade 0, 1, or 2) according to the grading system of the American Society of Interventional and Therapeutic Neuroradiology/American Society of Interventional Radiology. We collected data on patients’ characteristics and identified the factors that affect collateral circulation. Results: This study included 212 patients. The multivariate logistic regression analysis showed that the high-density lipoprotein cholesterol (HDL-C) concentration and a complete anterior half of the circle of Willis were independent protective factors for good collateral circulation, whereas elevated lipoprotein(a) [Lp(a)] and serum creatinine concentrations were independent risk factors for good collateral circulation. The area under the receiver operating characteristics curve (AUC) was 0.68 (95% confidence interval [CI], 0.61–0.76) for HDL-C and 0.69 (95% CI, 0.62–0.76) for Lp(a). A binary logistic regression model analysis of the joint factor of HDL-C and Lp(a) yielded an AUC of 0.77 (95% CI, 0.71–0.84). Conclusions In patients with severe unilateral ICA stenosis or occlusion, the combination of HDL-C and Lp(a) is a useful predictor of collateral circulation.

Objective:To explore the application of analogical thinking combined with situational teaching method to create a happy learning situation in ophthalmic nursing practice teaching.Methods:A total of 90 nursing students who had practice in Department of Ophthalmology, Xijing Hospital, Air Force Medical University, from October 2020 to January 2022 were selected as the research objects. According to different teaching methods, they were divided into control group and observation group. The control group ( n=45) adopted conventional teaching, while the observation group ( n=45) adopted analogical thinking combined with situational teaching method. The two groups of nursing students were evaluated by comprehensive examination results, teaching effect questionnaire and students' overall satisfaction with their teachers. SPSS 22.0 was used for t-test and Chi-square test. Results:The test scores of theoretical knowledge [(85.39±1.57) vs. (84.41±1.34)] and nursing skills [(87.52±0.04) vs. (82.64±0.05)] of observation group were both higher than those of control group. In the observation group, the students' awareness of medication safety, professional interest and independent learning, cooperation and organization ability, independent thinking and independent learning ability, the purpose of multi-disciplinary knowledge integration, information and knowledge range improvement, clinical thinking communication ability enhancement, flexible application of theoretical knowledge, practical operation ability enhancement, and the cultivation of innovation consciousness were all improved. And all the scores were better than those of the control group. The satisfaction of teachers in the observation group on students' learning attitude, language expression, calling communication ability and independent problem-solving ability was higher than that in the control group ( P < 0.05). Conclusion:The combination of analogical thinking and the situational teaching method to create a happy learning situation can improve the average scores of nursing students and nursing skills, and significantly improve the satisfaction of students to the teachers.

Objective To investigate the mediating effects of self-evaluation of depressive symptoms between psychosocial function and negative automatic thinking in patients with depression in remission.Methods The Hamilton depression scale (HAMD-17),generic quality of life inventory(GQOLI),Beck depression inventory(BDI) and automatic thoughts questionnaire (ATQ) were applied to 122 subjects who were patients with depression in remission.Results (1) There was significantly negative correlation between self-evaluation of depressive symptoms and physical function and psychological function and social function(r=-0.559,r=-0.435,r=-0.388,all P＜0.01),and negative correlation between negative automatic thinking and physical function,psychological function and social function(r=-0.563,r=-0.449,r=-0.468,all P＜0.01).(2)The score of physical function,psychological function and social function in the group with low self-evaluation of depressive symptoms was higher than those in the group with high self-evaluation of depressive symptoms (low group:70.27±11.33,69.54±11.53,69.09±10.41;high group:53.33±9.32,57.24±13.80,57.69± 12.77),and the differences were statistically significant (t=7.40,4.82,4.48,P＜0.01).(3) Negative automatic thinking had a significant negative effect on physical function (B =-0.17,P＜0.01),which was affected by self-evaluation of depressive symptoms.The relationship between negative automatic thinking and psychological function was affected by self-evaluation of depressive symptoms.Conclusion Self-evaluation of depressive symptom plays a mediating role between negative automatic thinking and physical function,which also was a mediator in the relationship between negative automatic thinking and mental function.

ObjectiveTo analyze the epidemic intensity and characteristics of influenza in Changzhou City， Jiangsu Province from 2019 to 2023， and to provide scientific evidence for the formulation of influenza prevention and control strategies. MethodsThe surveillance data of influenza surveillance sentinel hospitals in Changzhou City from April 2019 to March 2023 were collected through the China influenza surveillance information system. Influenza-like illness （ILI） cases before and after the pandemic of COVID-19 in Changzhou City were analyzed， and the differences among qualitative data were compared by using χ^² test. ResultsFrom April 2019 to March 2023 the percentages of ILI cases’ medical visits in the four-influenza surveillance year were 2.57%， 1.84%， 5.38%， and 3.66%， respectively， and the positive detection rates of influenza virus were 25.71%， 0.44%， 22.78%， and 24.32%， respectively. The number of influenza outbreaks was 61， 1， 23， and 128， respectively. ILI cases were mainly among adolescent children aged 5‒14 years. The percentage of ILI cases in 2020‒2021 after the pandemic of COVID-19 was significantly lower than that in 2019‒2020 （χ²=737.342， P<0.001）， and the percentage of ILI cases in 2021‒2023 was higher than that in 2019‒2020. Influenza viruses in 2019‒2021 were dominated by type B Victoria， and influenza A virus was the dominant strain in positive influenza virus detections in 2022‒2023. The number of influenza outbreaks in 2021‒2023 was significantly lower than that in 2019‒2020 （χ²=185.662， P<0.001）. ConclusionThe epidemiological characteristics of influenza are different in different stages of COVID-19 prevention and control during 2019‒2023. In the dynamic clearance phase of COVID-19， ILI case’s medical visits showed low-level fluctuations without obvious seasonal fluctuations， and influenza virus was dominated by type B. In the high-intensity phase of the pandemic， the level of ILI case’s medical visits has reached the peak of the calendar year， and the positive detection of influenza virus was dominated by type A H3N2. In the "Category B B control" phase， the level of ILI case’s medical visits increased after a rapid decline， and the positive detection of influenza virus was dominated by type A H1N1. It is necessary to further strengthen the monitoring of influenza cases， pay close attention to the changes in influenza strains， actively promote influenza vaccination for key population group， and promote health behavior changes for the whole population.

Objective:To evaluate the effect of ultrasound-guided subserratus anterior plane block on postoperative analgesia in patients un-dergoing laparoscopic radical gastrectomy.Methods:Sixty patients who underwent elective laparoscopic radical gastrectomy were enrolled between May 2022 and October 2023 at Tianjin Medical University Cancer Institute&Hospital.Patients were assigned into two groups us-ing a random number table method:the control(group C)and the ultrasound-guided serratus anterior plane block(SAPB)(group S).Patient-controlled intravenous analgesia(PCIA)was administered at the end of the surgery.After surgery,visual analogue scale(VAS)of static pain scores was evaluated at 1,6,12,24,and 48 hours.PCIA pump was started at the VAS pain score≥4 after surgery,and sufentanil 0.1μg/kg was intravenously injected when the efficacy was inadequate.The requirement for PCIA use,time to first postoperative anal exhaust,first postoperative out-of-bed activity,first oral intake,and the duration of hospitalization stay were recorded for the two groups.Results:VAS scores were significantly lower at postoperative 1,6,and 12 h in group S than in group C(P<0.05).Additionally,the number of effective uses of PCIA,and rescue analgesia were significantly lower in group S[(6.1±0.4)(2)]than in group C[(18.6±1.4)(17)](P<0.001).The time to first postoperative anal exhaust,first postoperative out-of-bed activity,first oral intake,and duration of hospital stay were shortened in group S than in group C(P<0.05).There were no significant differences in other parameters between these two groups.Conclusion:Ultrasound-guided SAPB can reduce postoperative pain and facilitate fast recovery in laparoscopic radical gastrectomy patients.

Objective:To evaluate the effect of ultrasound-guided internal branch of superior laryngeal nerve(ibSLN) block on the quality of anesthesia recovery in the patients undergoing intracranial tumor surgery.Methods:The data from patients of either gender, aged 18-65 yr, with a body mass index of 18-28 kg/m 2, who underwent intracranial tumor surgery from December 2022 to October 2023, were retrospectively collected. Patients were divided into control group (group C) and ultrasound-guided ibSLN block group (group U). Bilateral ibSLN block was performed with 0.375% ropivacaine hydrochloride 2 ml.The tracheal extubation time, emergence time, development of cardiovascular events within 15 min after extubation, emergence agitation, Ramsay sedation score, Steward recovery score, visual analogue scale scores at 10 min after extubation and development of postoperative sore throat and hoarseness in postanesthesia care unit were recorded. Results:Compared with group C, the incidence of emergence agitation, Ramsay sedation score, visual analogue scale scores and sore throat were significantly decreased, the incidence of hoarseness was increased ( P<0.05), and no significant change was found in the extubation time, emergence time and Steward recovery score in group U( P>0.05). No hypertension, hypotension, tachachycardia and bradycardia were found in two groups. Conclusions:Ultrasound-guided ibSLN block can improve the quality of anesthesia recovery in the patients undergoing intracranial tumor surgery.

Objective:To evaluate the clinical efficacy and safety of Longmu Zhuanggu granule for the treatment of children recurrent respiratory infection due to lung-spleen Qi deficiency. Method:This multicenter stratified， block-randomized， double-blind， double-dummy， positive drug （pidotimod granule） parallel controlled， and non-inferiority trail intended to included 240 children patients and divided them into the experimental group （n=120） and the control group （n=120） at the ratio of 1∶1. Patients in both groups were treated for eight successive weeks and followed up for 12 months. The cure rates， numbers of respiratory infections， average courses of disease， curative effects of traditional Chinese medicine （TCM） syndrome， curative effects of individual symptoms， curative effects of immune indexes， and safety indexes between the two groups were observed and compared. Result:A total of 237 subjects were collected from 10 research centers， including 119 cases in the control group and 118 in the experimental group. There were 236 cases enrolled into the full analysis set （FAS）， 210 into the per-protocol set （PPS）， and 236 into the safety set （SS）. The baseline data of the two groups were not significantly different from each other， indicating that they were comparable. The cure rates of the experimental group and control group were 75.21% （88/117） and 73.95%（88/119）， respectively， with the 95% confidence interval （CI） of difference between the two groups being 1.26% （-9.85%，12.37%） for FAS and 3.81% （-6.28%，13.90%） for PPS. The 95% CI fell within the 10% non-inferiority margin， implying that non-infertility test of the cure rate in the treatment of endpoint disease was valid， and the conclusions of FAS and PPS analysis were consistent. There was no significant difference in the number or course of upper respiratory infection， bronchitis， and pneumonia. The difference in curative effects of TCM syndrome between the two groups after four weeks of treatment was not remarkable. After eight weeks of treatment， the total effective rate of the experimental group was 84.62%（99/117）， statistically higher than 78.15%（93/119） of the control group（χ²=-3.26，P<0.05）. There were no significant differences in the disappearance rates of individual symptoms between the two groups after four weeks of treatment. After eight weeks of treatment， the experimental group and control group exhibited the disappearance rates of 67.50%（54/80） and 47.37%（36/76） for shortness of breath and laziness to speak， 75.00%（54/72） and 53.33%（40/75） for poor appetite， 54.55%（60/110） and 37.84%（42/111） for hyperhidrosis， respectively， with obviously better outcomes observed in the experimental group （P<0.05，P<0.01）. The inter-group comparison revealed significant differences in immune indexes after eight weeks of treatment. As demonstrated by comparison with the situations before treatment， IgA， IgG， IgM， and CD4 did not change significantly after treatment. Except for CD8 in the experimental group (P<0.05), there was no significant difference in other immune indexes before and after treatment There was no significant difference in the incidence of adverse reactions. Conclusion:Longmu Zhuanggu granule is not inferior to pidomod granule in the treatment of children recurrent respiratory infection due to lung-spleen Qi deficiency， and it exhibits good safety， implying its promising clinical application value.