Objective:To explore the optimum opportunity for lumbodorsal muscles exercises of patients undergoing posterior lumbar decompression and instrumentation, and investigate its effect on the rehabilitation outcomes and kinesiophobia.Methods:A randomized controlled trial was used. By convenient sampling method, a total of 120 lumbar disc herniation patients were prospectively selected from Affiliated Nantong Hospital of Shanghai(Nantong Sixth People′s Hospital) from February 2020 to December 2021. The paitients were assigned to early group, middle group and late group, with 40 cases in each group. All patients were given routine postoperative care and lumbodorsal muscles exercises. The early group started to exercise 10th day after operation, the middle group started to exercise 3 weeks after operation, and the late group started to exercise 6 weeks after operation. The intervention effect was respectively evaluated by Japanese Orthopaedics Association (JOA) and Tampa Scale for Kinesiophobia (TSK).Results:There were 3, 1 and 1 missing cases in the early, middle and late group respectively, the age in the 3 groups were (56.05 ± 11.77), (57.33 ± 14.64) and (54.23 ± 15.73) years old in turn. Three months after exercising, the total score of JOA in the early, middle and late group were (25.32 ± 2.45), (24.44 ± 2.19) and (22.13 ± 1.58) in turn, the difference was significant ( F=23.64, P<0.05); the score of TSK in the early, middle and late group were (37.95 ± 6.81), (34.18 ± 6.39) and (33.33 ± 7.36) in turn, the difference was significant ( F=4.82, P<0.05). Conclusions:Lumbodorsal muscles exercises start at 3 weeks after operation can significantly improve the rehabilitation outcome of lumbar disc herniation patients undergoing posterior lumbar decompression and instrumentation, and will not increase the level of kinesiophobia, its can be consider as optimum opportunity for lumbodorsal muscles exercises.

AIM:To investigate the role of ClC-3 chloride channel in the promotion of radio sensitization of na-sopharyngeal carcinoma CNE-2Z cells by dihydroartemisinin(DHA).METHODS:MTT was used to detect the inhibito-ry effect of DHA on the viability of CNE-2Z cells and normal nasopharyngeal epithelial NP69-SV40T cells,the radio sensi-tization effect of DHA on CNE-2Z cells was detected by cloning assay,the expression of ClC-3 protein was detected by Western blot,the expression of ClC-3 protein was down-regulated by siRNA technology,and the chlorine current of cells was recorded by whole cell patch-clamp technology.RESULTS:(1)Compared with NP69-SV40T cells,DHA selective-ly inhibited the proliferation of CNE-2Z cells,with IC10 values of(13.020±4.831)μmol/L and(5.244±1.050)μmol/L,respectively(P＜0.01).(2)The results of clonal formation experiments showed that DHA had a radio sensitizing effect on CNE-2Z cells,with a radio sensitization ratio of 1.9.(3)DHA could activate the chlorine channel of CNE-2Z cells and produce an outward chlorine current,but had no effect on the chlorine channel of NP69-SV40T cells.(4)DHA promoted the expression of ClC-3 chloric channel protein in CNE-2Z cells(P＜0.01).(5)Chlorine channel blocker NPPB could in-hibit the radio sensitizing effect of DHA on CNE-2Z cells by 1.84 times,and also inhibited the chlorine current activated by DHA.(6)the down-regulation of CNE-2Z ClC-3 protein could inhibit the radio sensitization effect of DHA on CNE-2Z cells by 4.19 times,and the activation of chlorine current by DHA on CNE-2Z cells was no longer produced.CONCLU-SION:DHA has a radio sensitizing effect on nasopharyngeal carcinoma CNE-2Z cells,which is likely to be related to the activation of ClC-3 chloride channel.

Objective:To compare the efficacy and safety of Castor single-branch stent and in vitro fenestration stent in treating thoracic aortic diseases with insufficient landing zone.Methods:The clinical data of patients with thoracic aortic diseases treated with Castor single-branch stent or in vitro fenestrated stent between December 2017 and June 2021 in the First Affiliated Hospital of Zhengzhou University were retrospectively analyzed. A total of 184 patients were included, 99 patients were treated with Castor branch stent, and 85 patients with in vitro fenestration stent. All patients′ general clinical data, surgical data, perioperative and follow-up clinical and imaging data, and postoperative complications were collected. The χ2 test was used to compare the incidence of complications between the two groups, and the Kaplan-Meier method was used to plot the survival rate without adverse events between the two groups. Results:Stent placement was successful in all patients, and the success rate of the technique was 100%. Other branches were reconstructed in 2 patients in the Castor group and double fenestrated stent were reconstructed in 12 patients in the fenestrated group. The mean operation time of the Castor group was significantly shorter than that of the fenestrated group, the number of patients who received local anesthesia was significantly lower than that of the fenestrated group, and the endoleak rate during follow-up was significantly lower than that of the fenestrated group ( P<0.05). There was no significant difference in the postoperative hospital stay, the incidence rate of perioperative complications, mortality, the incidence rate of neurological complications, new dissection or aneurysm rate, branch stent stenosis rate, second surgical intervention rate, and false lumen thrombosis between the two groups ( P>0.05). The adverse event-free survival rate of the Castor group was slightly higher than that of the fenestrated group, but its difference was not statistically significant ( P>0.05). Conclusion:Castor branch stent and in vitro fenestration stent have good short-term and mid-term efficacy in the treatment of aortic diseases with insufficient landing zone, which are safe and effective options for reconstruction of LSA and other branch arteries.

Objective:To investigate the current situation of the use of transjugular intrahepatic portosystemic shunt (TIPS) for portal hypertension, which should aid the development of TIPS in China.Methods:The China Portal Hypertension Alliance (CHESS) initiated this study that comprehensively investigated the basic situation of TIPS for portal hypertension in China through network research. The survey included the following: the number of surgical cases, main indications, the development of Early-TIPS, TIPS for portal vein cavernous transformation, collateral circulation embolization, intraoperative portal pressure gradient measurement, commonly used stent types, conventional anticoagulation and time, postoperative follow-up, obstacles, and the application of domestic instruments.Results:According to the survey, a total of 13 527 TIPS operations were carried out in 545 hospitals participating in the survey in 2021, and 94.1% of the hospital had the habit of routine follow-up after TIPS. Most hospitals believed that the main indications of TIPS were the control of acute bleeding (42.6%) and the prevention of rebleeding (40.7%). 48.1% of the teams carried out early or priority TIPS, 53.0% of the teams carried out TIPS for the cavernous transformation of the portal vein, and 81.0% chose routine embolization of collateral circulation during operation. Most of them used coils and biological glue as embolic materials, and 78.5% of the team routinely performed intraoperative portal pressure gradient measurements. In selecting TIPS stents, 57.1% of the hospitals woulel choose Viator-specific stents, 57.2% woulel choose conventional anticoagulation after TIPS, and the duration of anticoagulation was between 3-6 months (55.4%). The limitation of TIPS surgery was mainly due to cost (72.3%) and insufficient understanding of doctors in related departments (77.4%). Most teams accepted the domestic instruments used in TIPS (92.7%).Conclusions:This survey shows that TIPS treatment is an essential part of treating portal hypertension in China. The total number of TIPS cases is far from that of patients with portal hypertension. In the future, it is still necessary to popularize TIPS technology and further standardize surgical indications, routine operations, and instrument application.

Objective:To assess the association between body mass index (BMI) and major adverse cardiovascular and cerebrovascular events (MACCE) among patients with acute coronary syndrome (ACS).Methods:This was a multicenter prospective cohort study, which was based on the Improving Care for Cardiovascular Disease in China (CCC) project. The hospitalized patients with ACS aged between 18 and 80 years, registered in CCC project from November 1, 2014 to December 31, 2019 were included. The included patients were categorized into four groups based on their BMI at the time of admission: underweight (BMI<18.5 kg/m 2), normal weight (BMI between 18.5 and 24.9 kg/m 2), overweight (BMI between 25.0 and 29.9 kg/m 2), and obese (BMI≥30.0 kg/m 2). Multivariate logistic regression models was used to analyze the relationship between BMI and the risk of in-hospital MACCE. Results:A total of 71 681 ACS inpatients were included in the study. The age was (63.4±14.7) years, and 26.5% (18 979/71 681) were female. And the incidence of MACCE for the underweight, normal weight, overweight, and obese groups were 14.9% (322/2 154), 9.5% (3 997/41 960), 7.9% (1 908/24 140) and 7.0% (240/3 427), respectively ( P<0.001). Multivariate logistic regression analysis showed a higher incidence of MACCE in the underweight group compared to the normal weight group ( OR=1.30, 95% CI 1.13-1.49, P<0.001), while the overweight and obese groups exhibited no statistically significant difference in the incidence of MACCE compared to the normal weight group (both P>0.05). Conclusion:ACS patients with BMI below normal have a higher risk of in-hospital MACCE, suggesting that BMI may be an indicator for evaluating short-term prognosis in ACS patients.

Objective To discuss the teaching method of staged target teaching(STT)combined with problem-based learning(PBL)in improving the effectiveness of cerebrovascular intervention training.Methods A total of 44 refresher doctors,who received cerebrovascular interventional training at the Department of Interventional Radiology of the First Affiliated Hospital of Zhengzhou University of China between March 2021 and March 2023,were enrolled in this study.Traditional teaching method was adopted for 20 refresher doctors(control group)and STT+PBL teaching method was adopted for the remaining 24 refresher doctors(study group).Before and after the training,the basic theoretical knowledge,operation skill,comprehensive interventional knowledge and the satisfaction survey were compared between the two groups.Results Before training the differences in the basic theoretical knowledge score and learning motivation between the two groups were not statistically significant(P＞0.05).After 6 months training the completion examination score of the study group was significantly better than that of the control group(P＜0.05).Through independently working in clinical practice for one year after training completion,the operation skill,basic theoretical knowledge and comprehensive ability of the study group were remarkably better than those of the control group(P＜0.05).Moreover,the scores of understanding ability,teacher-student interaction,communication skill,clinical thinking ability,self-learning ability,teamwork skill,knowledge mastery degree in the study group were strikingly higher than those in the control group,and the differences were statistically significant(P＜0.05).Conclusion The combination teaching method of STT and PBL can significantly improve the quality and effectiveness of the training on the interventional treatment of cerebrovascular diseases.

Objective To explore the efficiency and safety of trans-sheath intraluminal forceps biopsy under digital subtraction angiography(DSA)guidance for assisting diagnosis of pulmonary artery obstructive diseases.Methods Data of 16 patients who underwent trans-sheath intraluminal forceps biopsy for pulmonary artery obstructive diseases were retrospectively analyzed,and the clinical manifestations were recorded.The technical success of biopsy was defined as tissue obtained met the needs of pathology diagnosis.For patients with malignant pathology results,the final diagnosis was malignant,for those with benign pathology results after biopsy and no obvious changes after 6-month or longer follow-up,or benign pathology results after surgical resection,the final diagnosis was benign,otherwise was no clear diagnosis.The operation time,technical success rate,diagnostic efficiency,complications and changes of pulmonary artery pressure before and after the biopsy were observed.Results Among 16 patients,9 complained of intermittent chest tightness,4 complained of chest pain with chest tightness,2 complained of chest pain but 1 denied any symptoms.The lesions located in the left lung in 10 cases and in the right lung in 6 cases,all with enhanced CT showed filling defects of the involved branch of pulmonary artery.Totally 16 trans-sheath intraluminal forceps biopsies were performed in 16 patients,with an average operation time of(31.02±6.02)min and technical success rate of 100%.Malignant tumors were finally diagnosed in 10 cases,including 1 case of lung cancer with false-negative biopsy result,while biopsy correctly diagnosed benign lesions in the other 6 cases.Transient worsening chest pain with chest tightness occurred in 2 cases and relieved after symptomatic treatments.No statistically significant difference of pulmonary artery pressure was found before([53.38±14.28]mmHg)and after([53.69±14.15]mmHg)biopsy(P＞0.05).Conclusion DSA-guided trans-sheath intraluminal forceps biopsy was relatively safe and valuable for assisting diagnosis of pulmonary artery obstructive diseases.

Methods:From Jan 2019 to Nov 2021, 20 patients underwent 3D printed template assisted pre-fenestration of stent graft with reducing-diameter tie technique and branched stents for the EVAR at the three hospitals. The clinical data patients were collected and analyzed.Results:All the 20 cases underwent 3D printed template assisted pre-fenestration of stent graft according to the data of pre-operative the computed tomographic angiography (CTA). EVAR was successfully performed in all patients(included 2 cases with one fenestration,5 cases with 2 fenestration,10 cases with 3 fenestration and 3 cases with 4 fenestration). Fifty-four reinforced fenestrations (20 in right renal artery, 18 in left renal artery, 13 in superior mesenteric artery and 3 in celiac artery) were performed. During the follow-up period (mean 14.6 months), 1 case died, and the one-stage patency rate of splanchnic artery branch stent was 98.1%. Four patients had endoleak, 1 patient died of intracranial hemorrhage during postoperative period. None of patients had postoperative paraplegia or organ ischemia.Conclusions:3D printed template assisted pre-fenestration of stent graft with reducing-diameter tie technique is feasible for EVAR in the treatment of complex abdominal aortic aneurysms and dissections. The technique is capable to reinforce the blood supply of visceral arteries with satisfied short-term effectiveness.Ojective:To evaluate 3D printed template assisted pre-fenestration of stent graft with reducing-diameter tie technique and branched stents for the endovascular aortic aneurysm repair (EVAR).

Objective:To investigate the application value of aortic dissection detection risk score (ADD-RS) combined with D-dimer (DD) in the early diagnosis of acute aortic dissection (AAD).Methods:The clinical data of 70 patients with suspected aortic dissection detection admitted to The Second Hospital of Jiaxing from August 2019 to April 2020 were collected. All patients were scored using the ADD-RS, and grouped according to the scoring results. The sensitivity and specificity of ADD-RS plus DD in the early diagnosis of AAD were calculated. The areas under the receiver operating characteristic (ROC) curves that were plotted for drADD-RS plus DD versus DD alone to screen AAD were compared to evaluate efficacy. Results:CT angiography results showed that among 70 patients with suspected AAD, 29 patients had AAD and 41 patients had no AAD. A total of 21 patients were scored 0, 41 patients were scored > 1, and 8 patients were scored > 0. ADD-RS > 0 had an overall sensitivity of 79.31% and a specificity of 36.59% for AAD diagnosis. DD test results had an overall sensitivity of 86.20% and a specificity of 36.50% for AAD diagnosis. The area under the ROC curve of ADD-RS = 0 plus DD-negative result and the area under the ROC curve of DD-negative result alone in ruling out AAD were 0.885 with 95% CI (0.786-0.949) and 0.787 with 95% CI (0.673-0.876), respectively. The difference between the two groups was statistically significant ( P = 0.024). Conclusion:Compared with DD-negative result alone, the ADD-RS = 0 plus DD-negative result strategy offers greater specificity to rule out AAD. The combined strategy has a greater efficacy in ruling out AAD. However, a multi-center study involving a large sample is required for in-depth evaluation.

Objective:To evaluate the feasibility, safety, treatment outcome, and the individualized surgical procedure selection of the interventional treatments of chylous leakage.Methods:From July 2019 to January 2022, the clinical data of 60 consecutive patients with chylous leakage underwent interventional treatment were respectively analyzed. The cases included chylothorax ( n=37), chylous ascites ( n=10), chyluria ( n=4), chylothorax combined with chylous ascites ( n=5), chylothorax combined with chylopericardium ( n=2), and pelvic chylous effusion ( n=2). Conservative treatment was considered to have failed for all patients. The lymphangiography was firstly performed to detect chylous leakage, then an individualized procedure was selected according to the lymphangiography results. The treatment outcomes and complications were recorded, and follow-up was performed. Results:Lymphangiography was technically successful in 55 of 60 patients (91.7%), and no cisterna chyli and thoracic duct opacification was observed in 5 patients. The procedures for the patients included lymphangiography alone ( n=23), thoracic duct embolization ( n=23), thoracic duct disruption ( n=5), lymphatic embolization for pelvic chylous effusion ( n=4), and balloon plasty for thoracic duct ( n=5). Clinical success was achieved in 53 of 60 cases (88.3%). The complication rate was 8.3% (5/60), and all complications were minor. The median follow-up time was 11 months (range 0.5-30 months) for 56 patients, and 4 patients were lost to follow-up. There was one patient presenting the reoccurrence of symptom, and 8 patients died. Conclusions:The interventional treatment of chylous leakage is safe with good outcomes and low complication rate. Individualized treatment procedures based on the lymphangiography findings is feasible and with good curative effect.