Objective:To study the risk factors of venous thromboembolism(VTE)and the predictive value of the improved VTE score model to identify the risk of VTE in gynecological surgery patients.Methods:From Janu-ary 1,2020 to December 31,2022,41 patients with VTE after gynecological surgery were selected as the VTE group,and a total of 164 patients with adjacent gynecological surgeries during the same period were selected as the non-VTE group with a ratio of 1 :4.Univariate and multivariate Logistic regression analysis were used to ana-lyze the risk factors of VTE after gynecological surgery,and a modified VTE risk factor rapid assessment model(referred to as the improved VTE score model)was constructed.The receiver operating characteristic(ROC)curve was used to study the predictive value for VTE for in gynecological surgery,and compared with the Caprini score model(Caprini table for short).Results:①Multivatiate Logistic regression analysis showed that there were independent risk factors for postoperative VTE in gynecology surgery(OR＞1,P＜0.05),including age≥60 years,BMI≥28 kg/m2,malignant tumors,surgery time＞3 hours,history of thrombosis,and the increased D-di-mer difference before and after surgery.②The Area under Curve(AUC)of ROC was 0.963 in the improved VTE score model with a Youden index 81.10％,sensitivity 87.80％and specificity 93.29％.The AUC of the Caprini score model was 0.888 with Youden index 63.41％,sensitivity 73.17％and specificity 90.24％.The improved VTE score model the Caprini score model identified 92.68％and 85.37％of VTE patients as high-risk or ex-tremely high-risk,respectively,but the difference was not statistically significant(P＜0.05).Conclusions:More attention should be paid to the six independent risk factors for postoperative VTE in gynecology surgery.The two score models showed a similar identified level.However,the improved VTE score model is more simple and easier to operate,has better practicality,and has certain clinical promotion value.

ObjectiveTo analyze the long-term trends of the disease burden of diabetes attributed to metabolic factors in China from 1990 to 2019, and provide scientific recommendations for diabetes prevention and control in China. MethodsDescriptive analysis was conducted on the disease burden data of diabetes attributed to metabolic factors in China from 1990 to 2019, obtained from GBD 2019, encompassing death form diabetes, disability-adjusted life years (DALY), years of life lost (YLL), and years lived with disability (YLD). Joinpoint regression models were employed to analyze the long-term trends in mortality and DALY rates. Furthermore, the study examined the impact of two metabolic risk factors, high fasting plasma glucose (FPG) levels and high body mass index (BMI) levels, on the disease burden of diabetes. ResultsFrom 1990 to 2019, the overall standardized mortality and DALY rates attributed to metabolic factors for diabetes in the general population in China showed an upward trend, with both average annual percent changes (AAPCs) of 0.1% in the total population. The trend was upward in males with AAPCs of 0.9% and 0.6%, while it was downward in females with AAPCs of -0.4% and -0.3%. As age increased, the disease burden of diabetes attributed to metabolic factors showed an upward trend, with high FPG and high BMI ranking as the top two attributing risk factors. The disease burden of diabetes attributed to metabolic factors was higher in Chinese males than females. ConclusionThe disease burden of diabetes attributed to metabolic factors is increasing among the overall population and particularly among males, while the burden for female is declining. There is a need to increase intervention efforts for males aged 65 and above, provide scientific guidance on residents’ diet and lifestyle habits, and control blood glucose and body weight.

Objective:To explore the evaluation of dual-parameter three dimension arterial spin labelling(3D-ASL)perfusion imaging on blood-supply situation of patients with chronic middle cerebral artery occlusion(CMCAO)and the relationship between that and cerebral infarction area.Methods:A total of 112 patients with unilateral CMCAO admitted to Handan Central Hospital from April 2019 to December 2021 were selected,and all of them were divided into a compensatory group(50 cases)with anterior cerebral artery(ACA)leptomeningeal anastomoses(LMA)and an uncompensated group(62 cases)according to the results of digital subtraction angiography(DSA)examination.The results of diffusion weighted imaging(DWI),magnetic resonance angiography(MRA)and dual-parameter 3D-ASL detection were respectively analyzed,and the clinical data,3D-ASL parameters and the incidence of cerebral infarction between the two groups were compared.The influence factors of compensation were further analyzed.The receiver operating characteristics(ROC)curve of LMA diagnostic value of CMCAO patients was drawn according to cerebral blood flow values[post label delay(PLD)=1.5 s,2.5 s)].The 3D-ASL parameters of patients with different cerebral infarction areas were compared,and the relationship between 3D-ASL parameters and cerebral infarction area was compared.Results:The apparent diffusion coefficient(ADC)at the side of lesion of CMCAO patients was(0.31±0.10),and cerebral blood flow values at 1.5s and 2.5s were respectively(25.67±4.25)and(54.09±4.49),which were significantly lower than those at the side of healthy,and the differences were statistically significant(t=27.591,34.210,3.913,P<0.05),respectively.The differences of cerebral blood flow values(1.5s and 2.5s)between compensatory group and uncompensated group were significant(t=5.584,4.090,P<0.05),respectively.The results of logistic regression analysis showed that age,stroke,cerebral infarction area and cerebral blood flow values(1.5 s and 2.5 s)were influencing factors on LMA compensation of CMCAO patients(OR=4.187,6.604,0.482,5.681,5.807,P<0.05),respectively.The ROC values showed that the area under curve(AUC)of 3D-ASL were respectively 0.720 and 0.812 in diagnosing LMA when PLD were respectively 1.5s and 2.5s.The proportion of normal and lacunar infarctions in the compensatory group was significantly higher than that in the uncompensated group,while the proportions of middle and small infarction,and large area infarctions of the compensatory group were significantly lower than those of the uncompensated group,and the difference was statistically significant(t=28.062,P<0.05).The difference in cerebral blood flow values(1.5s)among patients with different infarct areas was statistically significant(t=0.202,P<0.05).The cerebral blood flow value(1.5s)of 3D-ASL was negatively correlated with the area of cerebral infarction(r=-0.261,P<0.05).Conclusion:Dual parameter 3D-ASL can non-invasively and visually assess the compensatory status of LMA of patients with unilateral CMCAO.The blood flow perfusion of middle cerebral artery(MCA)at the side of lesion is related to the area of cerebral infarction.When the PLD is 1.5s,the sensitive response can be conducted on this,so as to provide objective and reliable basis for clinical diagnosis and treatment and curative effect.

Objective To explore the correlation of contrast-enhanced ultrasound(CEUS)parameters of adenomyoma before and after MR-guided focused ultrasound surgery(MRgFUS)with the therapeutic efficacy.Methods Uterine ultrasound and CEUS data of 26 patients with adenomyoma before and 24 h,1 and 6 months after MRgFUS,as well as MRI before and immediately after MRgFUS were retrospectively analyzed.The lesion volume shown on CEUS and MRI before MRgFUS,the non perfusion volume(NPV)of adenomyoma on MRI immediately after and CEUS 24 h after MRgFUS were compared.The ablation rate of lesions was calculated based on CEUS 24 h after MRgFUS.The focal blood flow score before,24 h after MRgFUS and the sum of the two,also the numerical rating scale(NRS)score before and 1,6 months after MRgFUS and the change rate were analyzed.The correlations of CEUS parameters with the efficacy of MRgFUS for treating adenomyoma were observed.Results No significant difference of lesion volume nor NPV on CEUS or MRI was found(both P＞0.05).The ablation rate of lesions 24 h after treatment was(58.11±24.92)%.The focal blood flow score before,24 h after MRgFUS and the sum of the two was 2.00(2.00,2.00),1.00(1.00,1.00)and 3.50(3.00,3.50),respectively,with significant difference between before and 24 h after MRgFUS(Z=-4.463,P＜0.001).NRS score was 5.00(4.00,6.00),3.00(2.00,4.00)and 2.00(1.00,3.00)before treatment,1 and 6 months after treatment,respectively,with significant differences at different time points(all P＜0.01).The change rate of NRS score 1 and 6 months after treatment was 35.42%(23.75%,50.00%)and 60.00%(50.00%,77.08%),respectively.The lesion blood flow score before and 24 h after MRgFUS and the sum of the two were all negatively correlated with ablation rate(rs=-0.552,-0.820,-0.745),while positively correlated with NRS scores 6 months after treatment(rs=0.513,0.552,0.496)but negatively correlated with the change rate of NRS scores 6 months after treatment(rs=-0.525,-0.479,-0.531).The ablation rate 24 h after treatment was negatively correlated with NRS scores(rs=-0.462)while positively correlated with the change rate of NRS scores 6 months after treatment(rs=0.500).Conclusion CEUS parameters before and after treatment were correlated with the therapeutic efficacy of MRgFUS for treating adenomyoma.

ObjectiveTo observe the effect of Banxia Xiexintang containing intestinal absorption solution （BXCIAS） on migration and invasion of polymorphonuclear myeloid-derived suppressor cells （PMN-MDSCs） in gastric cancer microenvironment. MethodThe complex solution （containing 0.63 g·mL^-1 crude drug） was prepared. Gastric cancer cells were subjected to non-contact co-culture with PMN-MDSCs in Transwell chamber to create gastric cancer microenvironment. Cell counting kit-8 （CCK-8） assay was used to screen the optimal intervention concentration and time of BXCIAS on PMN-MDSCs for subsequent experiment. The blank group， model group， FAK inhibitor group， and BXCIAS groups （26%， 18%， and 10%） were designed. Scratch assay and Transwell assay were employed to detect the migration and invasion ability of PMN-MDSCs， and enzyme-linked immunosorbent assay （ELISA） to measure the expression of vascular endothelial cell growth factor （VEGF） and matrix metalloproteinase-9 （MMP-9） in tumor microenvironment. The expression levels of PMN-MDSCs pathway-related proteins FAK， phosphorylated （p）-FAK， protein tyrosine kinase （Src）， and p-Src were detected by Western blot. ResultThe inhibition rates of PMN-MDSCs by 5%， 50%， 75%， and 100% BXCIAS at 48 h were higher than those at 24 h （P<0.05， P<0.01）. The inhibition rate of PMN-MDSCs by 50% BXCIAS at 72 h was lower than that at 48 h （P<0.01）， and the inhibition rates by 5% and 100% BXCIAS at 72 h were higher than those at 48 h （P<0.05， P<0.01）. There was no significant difference in the inhibition rate by other concentration levels at 48 h. The half-maximal inhibitory concentration （IC₅₀） at 48 h was 18.09%， indicating that 18% BXCIAS and 48 h were the optimal concentration and time， respectively. The migration distance of PMN-MDSCs was large （P<0.01）， and the number of migrating and invading cells increased （P<0.01） in the mode group compared with those in the blank group. Compared with model group， FAK inhibitor and BXCIAS at different concentration decreased the migration distance of PMN-MDSCs （P<0.01）， and the number of migrating and invading cells （P<0.01）， especially the 26% BXCIAS （P<0.01）. The expression of PMN-MDSCs pathway-related proteins FAK， p-FAK， Src and p-Src （P<0.01） and the expression of VEGF and MMP-9 （P<0.01） were higher in the model group than in the blank group. Compared with model group， FAK inhibitor and BXCIAS （26%， 18%， 10%） decreased the expression of FAK， p-FAK， and Src （P<0.01）， and FAK inhibitor and 18% BXCIAS reduced the expression of p-Src （P<0.01）， and the expression of VEGF and MMP-9 （P<0.01）. ConclusionBXCIAS can inhibit the migration and invasion of PMN-MDSCs by down-regulating the expression of FAK， p-FAK， Src， and p-Src proteins in the FAK signaling pathway of PMN-MDSCs in gastric cancer microenvironment.

ObjectiveTo observe the effect of Banxia Xiexintang （BXT）-containing intestinal absorption solution on the apoptosis of polymorphonuclear myeloid-derived suppressor cells （PMN-MDSCs） in gastric cancer microenvironment. MethodBXT-containing intestinal absorption solution was prepared， and gastric cancer cells and PMN-MDSCs were non-contact co-cultured in Transwell chamber to establish gastric cancer microenvironment. Cell counting kit-8 （CCK-8） assay was used to screen the optimal intervention concentration and time of 0-100% BXT-containing intestinal absorption solution prepared by 0.63 g·mL^-1 reconstitution solution. Cells were classified into blank group， model group， oxaliplatin group （10 mg·L^-1）， and BXT （26%， 18%， 10% BXT-containing intestinal absorption solution） group， and the apoptosis of PMN-MDSCs was detected by flow cytometry. The expression of apoptosis-related B-cell lymphoma 2 （Bcl-2）， Bcl-2-associated X protein （Bax）， and cysteine-aspartic acid protease-3 （Caspase-3） in PMN-MDSCs was detected by Western blot. ResultAfter treatment for 24 h and 48 h， the PMN-MDSCs-inhibiting rate was increased by 5%， 50%， 75%， and 100% BXT-containing intestinal absorption solution compared with that in the blank group （P<0.05， P<0.01）. At 72 h， the PMN-MDSCs-inhibiting rate by 50% BXT-containing intestinal absorption solution was lower than that at 48 h （P<0.01）， and the PMN-MDSCs-inhibiting rate by 5%， 75%， and 100% BXT-containing intestinal absorption solution showed no significant difference from that at 48 h. Moreover， the half-maximal inhibitory concentration （IC₅₀） at 48 h was 18.40%. Thus， 18% BXT-containing intestinal absorption solution and 48 h were the optimal intervention concentration and time. The survival rate of PMN-MDSCs in model group was higher than that in the blank group （P<0.05）， and the apoptosis rate was lower than that in the blank group （P<0.05）. Compared with model group， BXT containing intestinal absorption solution lowered the survival rate and raised apoptosis rate of PMN-MDSCs （P<0.05）， particularly the 26% BXT-containing intestinal absorption solution （P<0.05）. The expression of Bax and Caspase-3 in PMN-MDSCs was lower in the model group than in the blank group （P<0.05）， and the expression of Bcl-2 was higher in the model group than in the blank group （P<0.05）. The expression of Caspase-3 in PMN-MDSCs increased （P<0.05） and the expression of Bcl-2 decreased （P<0.05） in oxaliplatin group and BXT group compared with those in the model group. The expression of Bax rose in oxaliplatin group and BXT group （10% BXT-containing intestinal absorption solution） （P<0.05）. ConclusionBXT can induce the apoptosis of PMN-MDSCs by regulating the expression of apoptosis-related proteins Bax， Caspase-3， and Bcl-2 in gastric cancer microenvironment.

Objective:To study the safety and efficacy of hiatal hernia-endoscopic submucosal dissection (HH-ESD) for the treatment of giant hiatal hernia (>3 cm in length) complicated with refractory gastroesophageal reflux disease (GERD).Methods:Patients with giant hiatal hernia complicated with refractory GERD who voluntarily received HH-ESD at the Digestive Endoscopy Center of the Affiliated People's Hospital of Inner Mongolia Medical University from April 2018 to March 2020 were included in the clinical study. The completion of HH-ESD and the occurrence of complications were observed, and the changes of indicators before and after the treatment were observed, including gastroesophageal reflux disease-health related quality of life (GERD-HRQL) score, gastroesophageal reflux disease questionnaire (GERD-Q) score, endoscopy results, 24 h esophageal pH monitoring results, esophageal high-resolution manometry results and proton pump inhibitor (PPI) usage.Results:Data of 10 patients were collected during the study, with a medical history of 2-10 years. All patients successfully underwent HH-ESD treatment. No adverse events such as perforation and massive bleeding occurred during the operation, and the hospital stay was 6-12 days. Dysphagia occurred in 3 cases after the operation, which was relieved spontaneously within 3 or 6 months. The preoperative GERD-HRQL scores ranged from 19 to 29, which were reduced to 0-14 and 0-8 at 3 and 12 months after the operation, respectively. The preoperative GERD-Q score was 9-17, and the scores at 3 and 12 months after the operation were all 6-9, which were significantly lower than those before. Gastroscopy showed that esophagitis was improved in all patients, hernia sac was reduced, and Hill grade was reduced compared with that before. The preoperative DeMeester score was 30.3-247.1, and the postoperative 12-month score was 0.2-29.9, which was significantly lower than that before. The long diameter of hiatal hernia was 3.0-6.0 cm before the operation and 0-5.0 cm at 12 months after, which was smaller than that before. At 12 months of the follow-up, 7 patients had stopped PPI, and the remaining 3 had changed to intermittent oral PPI.Conclusion:Preliminary results show that HH-ESD is safe and effective for the treatment of giant hiatal hernia complicated with refractory GERD.

COVID-19 pandemic has put a huge burden on public health and global economy. Vaccines play an important role in controlling virus transmission and reducing mortality. While monoclonal virus neutralizing antibodies can reduce the viral load, improve symptoms, and prevent the aggravation of the disease from hospitalization. Now hundreds of clinical trials of COVID-19 vaccine and monoclonal neutralizing antibody are in progress. The vaccine focuses on disease prevention, while the neutralizing antibody focuses on disease treatment. There are quite many differences between the two kinds of clinical trials by following different technical guidelines, research purpose, trial design, implementation and outcome assessment. Therefore, it is necessary to summarize the similarities and differences between the clinical trials for the reference of new drug research and development as well as clinical researchers.

Objective:To investigate the role of contrast-enhanced ultrasound (CEUS) features in preoperative screening of patients with uterine fibroids treated by magnetic resonance imaging guided focused ultrasound (MRgFUS).Methods:The preoperative CEUS features of 28 patients (32 lesions) with uterine fibroids treated by MRgFUS in Xijing Hospital of Air Force Military Medical University from January 2018 to March 2021 were analyzed. The relationships between the imaging features of lesions and the necrosis range were evaluated, which included echo intensity in gray-scale ultrasound, the patterns of the perfusion intensity, perfusion distribution, the contrast agent into the model, lesions with entangled branch vessels, ring-like enhancement, and perfusion regression.Results:The gray-scale ultrasound showed that 68.75%(22/32) lesions were hypoechoic. The CEUS showed that 81.25%(26/32) lesions were iso/hypo-enhancement, 65.63%(21/32) lesions were heterogeneous enhancement, 68.75%(22/32) lesions with entangled branch vessels, 71.88%(23/32) lesions with ring-like enhancement, and 75%(24/32) lesions with fast-out enhancement. The 6 indicators above-mentioned had effects on the non-perfusion volume ratio≥50%, the differences were statistically significant (all P<0.05). Conclusions:CEUS can evaluate the blood flow characteristics in uterine fibroids, providing important information for preoperative screening of uterine fibroids for MRgFUS ablation.

Objective:To explore the effect of enhanced recovery after surgery(ERAS)-based multidisciplinary collaboration model on shortening the time of forbidden eating before receiving surgery, provide the basis for the selection of the preoperative diet prohibition scheme.Methods:From January 2017 to February 2019, a total of 384 patients who received the operation in Qingdao Municipal Hospital were analyzed retrospectively. The patients who under the traditional preoperative diet prohibition scheme were taken as the control group(156 cases) while those who under the multidisciplinary cooperation mode nursing under the concept of eras were taken as the experimental group(228 cases). The experimental group formulated the perioperative diet prohibition process according to the guidelines of eras, and the experimental group carried out the perioperative diet management for the patients according to the procedure. The difference between the two groups in the time of fasting, hunger, thirst incidence, insulin resistance, temporary stop will be observed and compared.Results:The time of fasting was (4.01±1.55) h in the experimental group and (10.12±1.57) h in the control group,there was significant difference between the two groups( t value was -1.65, P < 0.01). The incidences of thirst,hunger were 13.2%(30/228), 11.8%(27/228) in the experimental group and 89.7%(140/156), 87.2%(136/156) in the control group, there were significant differences between the two groups(χ 2 values were 220.20, 215.20, P < 0.01). The levels of insulin resistance on the first and third day after operation were 1.85 ± 0.43,1.52±0.61 in the experimental group and 1.99±0.51, 1.67±0.49 in the control group, the differences were statistically significant ( t values were -2.90, -2.56, P < 0.05).The temporary stop rate was 1.75%(4/228) in the experimental group and 7.69%(12/156) in the control group, the difference was statistically significant( χ2 value was 8.19, P<0.01). Conclusions:The ERAS-based multidisciplinary collaboration model can effectively shorten the preoperative fasting time, reduce the level of insulin resistance, reduce the incidence of hunger and thirst, and improve the rate of temporary stop and adjustment.