Investigation and analysis of the current status of transjugular intrahepatic portosystemic shunt treatment for portal hypertension in China / 中华放射学杂志

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.

Analysis of risk factors for lower extremity deep venous thrombosis in patients with type C pelvic fracture patients after internal fixation and construction of related nomogram model / 重庆医学

Objective To investigate the risk factors of lower extremity deep venous thrombosis(DVT)after internal fixation in patients with type C pelvic fracture,and to establish a relevent nomogram model.Methods Atotal of 217 patients with type C pelvic fractures who were admitted to the Orthopedic Center of the hospital from January 2018 to January 2022 were included in the study.All patients underwent internal fixation.According to whether DVT of the lower extremities was formed after operation,they were divided into the DVT group and the non-DVT group(N-DVT).The general clinical data and preoperative in-flammatory factor expression levels of the two groups was compared.Multivariate analysis was used to obtain independent predictors of DVT formation after internal fixation in patients with type C pelvic fractures.The correlation between preoperative inflammatory factors and DVT formation after internal fixation in patients with type C pelvic fractures was analyzed.The relevant nomograph model was constructed,and the Bootstrap method and calibration curve were used to verify the nomograph model internally.The ROC curve and deci-sion curve for predicting DVT formation after internal fixation in patients with type C pelvic fracture were drawn,and the predictive efficiency and net rate of return of independent prediction and combined prediction were an-alyzed.Results Multivariate analysis showed that age,diabetes,preoperative tumor necrosis factor-α(TNF-α),traction and braking,and bed rest time were independent predictors of DVT formation after internal fixa-tion in patients with type C pelvic fractures(P＜0.05).A nomograph model was constructed based on inde-pendent predictors to predict the formation of DVT after internal fixation in patients with type C pelvic frac-ture,and the C index of the distinguishing evaluation index of the nomogram model was 0.834(95％CI:0.812-0.924),the results of goodness of fit(H-L)test showed that the predicted value of DVT formation probability after internal fixation in patients with type C pelvic fracture was in good agreement with the actual observed value(P＞0.05).ROC curve analysis and decision curve analysis showed that age,diabetes,TNF-α,traction and braking,bed rest time and combined prediction model had good predictive performance and net yield in predicting DVT formation after internal fixation in patients with type C pelvic fracture.Conclusion Age,diabetes,TNF-α,traction braking and bed rest time are independent predictors of DVT formation after internal fixation in pa-tients with type C pelvic fracture.The nomogram model based on the above independent predictors has a high value in predicting DVT formation after internal fixation in patients with type C pelvic fracture.

Risk factors for axial deviation in treatment of tibial bone defects by bone transport with Orthofix unilateral external fixator / 中华创伤骨科杂志

Objective:To investigate the risk factors for axial deviation in the treatment of tibial defect susing Orthofix unilateral external fixator and proximal tibial osteotomy for bone transport.Methods:A retrospective study was performed to analyze the clinical data of 90 patients who had been treated for tibial bone defects by the Orthofix unilateral external fixator at Department of Microrepair and Reconstruction, The First Hospital Affiliated to Xinjiang Medical University from May 2012 to June 2019. There were 77 males and 13 females with a mean age of 41.2 years (from 17 to 63 years).The bone defects ranged from 4 to 13 cm in length. According to the Paley criteria for axial deviation, the 90 patients were divided into 2 groups: a deviation-free group with no axial deviation or an axial deviation ≤5° and a deviation group with an axial deviation>5°. The 2 groups were compared in terms of age, number of prior surgery, defect length, placement angle of Schanz screws, external fixation time, external fixation index and bending degree of Schanz screws at the last follow-up.The factors with P<0.05 were analyzed by multivariate logistic regression to find the risk factors for coronal axial deviation. Results:The 90 patients were followed up for an average of 23 months (from 12 to 40 months). The incidence of axial deviation in this cohort was 36.7% (33/90).The deviation group had a significantly larger number of prior surgery [5 (3, 6) times], a significantly longer defect length [8 (8, 9) cm], a significantly longer external fixation time [400.0 (341.8, 426.3) d], and a significantly greater bending degree of Schanz screws at the last follow-up [1.2° (0.4°, 3.5°)] than the deviation-free group [3 (2, 3) times, 6 (5, 8) cm, 340.8 (226.5, 422.8) d, and 0.8° (0.2°, 3.7°)] (all P<0.05). Multivariate logistic regression analysis showed that the number of prior surgery ( OR=2.581, 95% CI: 1.496-4.450, P=0.001) and the defect length ( OR=5.310, 95% CI: 1.952-14.442, P=0.001) were the risk factors for the axial deviation. Conclusion:In the treatment of tibial defect susing Orthofix unilateral external fixator and proximal tibial osteotomy for bone transport, the more prior surgeries and the longer a bone defect, the higher the risk for axial deviation.

Treatment of femoral intertrochanteric fractures by reduction without a traction table in a special position and fixation with proximal femoral nail antirotation (PFNA) / 中华创伤骨科杂志

Objective To study the treatment of femoral intertrochanteric fractures by reduction without a traction table in a special position and fixation with proximal femoral nail antirotation (PFNA).Methods From May 2016 to May 2017,34 patients with femoral intertrochanteric fracture were treated with PFNA.They were 20 men and 14 women,from 36 to 89 years of age (average,69.9 years).The left side was affected in 15 cases and the right side in 19.By AO classification,there were 10 cases of type AO 31-A1,13 ones of type 31-A2,and 11 ones of type 3 l-A3.Two cases were complicated with other fractures,and 5 with internal system disease,3 of whom had more than 2 concomitant diseases.Preoperative deep venous thrombosis was found in 2 cases.Surgery was performed for them between 2 and 8 days after injury (average,3.7 days).Reduction was performed in a special position without a traction table.The duration of anesthesia,operation time,intraoperative hemorrhage,postoperative complications and hip function by Harris scores were recorded.Results For the 34 patients,the anesthesia time ranged from 57 to 85 min (average,67.5 min),the operation time ranged from 28 to 65 min (average,40.9 min),and the intraoperative hemorrhage from 80 to 150 mL (average,110.6 mL).They received effective follow-up for 6 to 12 months (average,8.4 months).All the fractures healed after 6 to 12 months(average,7.2 months).No failure of internal fixation was observed during follow-ups.By the Harris scores at the final follow-up,the function of the affected hip was rated as excellent in 9 cases,as good in 21 and as fair in 4,giving an excellent to good rate of 88.2％.Conclusion In the treatment of femoral intertrochanteric fractures,reduction without a traction table in a special position and PFNA fixation may reduce anesthesia time,leading to satisfactory clinical outcomes.

Study on situation of Chinese medicine services with an example of Longhua new-build district of Shenzhen / 国际中医中药杂志

To study the current situation of Chinese medicine services from both perspective of supply and demand, looking to promote the healthy development of Chinese medicine community health service strategy. Questionnaire survey was conducted to practitioners of 14 community health service centers in Longhua district (80) and service objects (800). Ratios and SWOT methods were used for analysis. 75 qualified practitioners and 736 qualified service objects questionnaire recoveries showed that there are different degrees of commands from both sides, different options on therapeutic methods and lack of practitioners. It is suggested that community health service center should supply TCM service according to different time, different place and different patient on different type and levels.

A preliminary study on the outcomes of radiation therapy of bone hydatid disease in Meriones meridianus / 中华地方病学杂志

Objective According to radiation therapy (6WV-X line) on experimental gerbils which were successfully infected by echinococcus granulosus,the outcomes of bone hydatid disease after radiation therapy were studied.Methods Totally 240 gerbil models that were infected bone hydatid disease,were randomly divided into three groups (each group was further divided into three-month and six-month groups,40 gerbils per group),one group as a control group,the 40 Gy/5 times and 50 Gy/5 times groups were given 6WV-X line radiation therapy.After 5 consecutive radiation therapies,stopped for two days and then repeated for five times.At the end of three and six months after radiotherapy,the rate of death and the ulceration or infection of the lesions was compared.Fifteen gerbils from each group were randomly selected to observe the deaths of scolex,protein and calcium concentration changes,the maximum diameter changes of the lesions,the changes of hydatid cyst wet weight and the rate of suppressing capsule,the bone destruction,and rebuilding situation of lesions under a microscope.Results At the end of three and six months after radiation therapy,with increasing dosage,the deaths decreased significantly (x2 =10.4,17.4,all P ＜ 0.05);the ulceration or infection of the lesions decreased significantly (x2 =6.0,10.1,all P ＜ 0.05);the mortality rate of scolex increased [3 month:(22.4 ± 3.1),(95.0 ± 5.2),(136.0 ± 5.4);6 month:(23.2 ± 2.2),(98.2 ± 4.6),(169.3 ± 7.0);F =2 252.5,3 220.3,all P ＜ 0.05];the concentration of protein and the calcium ion were changed significantly [3 month:(1.059 ± 0.056),(0.733 ± 0.051),(0.571 ± 0.043)g/L and (2.802 ± 0.157),(3.056 ± 0.060),(3.546 ± 0.135)mmol/L;6 month:(1.088 ± 0.043),(0.753 ± 0.034),(0.340 ± 0.032)g/L and (2.804 ± 0.019),(3.068 ± 0.052),(3.886 ± 0.046)mmol/L;F =366.0,138.9 and 1 550.5,2 727.3,all P ＜ 0.05];the maximum diameters of the lesions reduced significantly [3 month:(2.38 ± 0.14),(1.69 ± 0.05),(1.40 ± 0.09)cm;6 month:(2.65 ± 0.05),(1.69 ± 0.03),(1.03 ± 0.06)cm;F =372.5,3 846.1,all P ＜ 0.05];the hydatid cyst wet weight decreased significantly [3 month:(3.47 ± 0.11),(2.54 ± 0.12),(1.46 ± 0.07)g;6 month:(3.75 ± 0.31),(2.55 ± 0.08),(1.02 ± 0.20)g;F =1 475.6,608.0,all P ＜ 0.05].In the same group with time went on,in the control and 40 Gy/5 times group,the deaths gradually increased (x2 =4.3,4.6,all P ＜ 0.05),but in the 50 Gy/5 times group,the deaths was not significantly increased (x2 =1.1,P ＞ 0.05);in the control and 40 Gy/5 times group,the ulceration or infection of the lesions gradually increased (x2 =5.5,4.3,all P ＜ 0.05),but in the 50 Gy/5 times group,the ulceration or infection of the lesions did not change significantly (x2 =0.3,P ＞ 0.05);in the 50 Gy/5 times group,the mortality rate of scolex was significantly increased (F =212.6,P ＜ 0.05);in 50 Gy/5 times group,the protein (calcium) concentration decreased (increased) significantly (F =271.8,84.7,all P ＜ 0.05);the maximum diameters of the lesions increased gradually in the control group (F =47.1,P ＜ 0.05),in 50 Gy/5 times group,the maximum diameters of the lesions decreased gradually (F =188.3,P ＜ 0.05);in the control group,hydatid cyst wet weight increased significantly (F =10.7,P ＜ 0.05),in the 50 Gy/5 times group,hydatid cyst wet weight was significantly reduced (F =68.5,P ＜ 0.05);with increasing dosage,the damage of the bone matrix and the cells in lacunae of the lesions gradually increased,in the same group with time went on,in the control group,a few amount of bone cells in lacuna died,and in 40 Gy/5 times and 50 Gy/5 times groups,the bone matrix and bone cells were partially repaired.Conclusion The long-term effects of appropriate dosage (50 Gy/5 times) radiation on experiments hydatid diseased gerbils are affirmed,but it is still need a clinical validation.

Diagnostic value of left-sided portal hypertension in chronic pancreatitis / 中华消化杂志

Objective To investigate the incidence of left-sided portal hypertension (LSPH) in chronic pancreatitis (CP) and other accompany conditions of CP and explore the diagnostic value of LSPH in chronic pancreatitis.Methods The clinical,pathological and imaging data of 125 CP patients received at least two imaging examination were retrospectively analyzed.The rates of abnormal pathologic findings,abnormal imaging findings and accompanying LSPH in CP were analyzed.The data were analyzed by chi-square test.Results Among 125 CP patients,29.6％ (37/125) received three or more than three kinds of imaging examinations.The pathological detection rates of pancreatic calcification or lithiasis,pancreatic ductal lesion,abnormal pancreatic morphology,pancreatic lesion and LSPH were 58.4％ (73/125),60.8％ (76/125),35.2％ (44/125),48.8％ (61/125) and 24.8％ (31/125),respectively.The sensitivities of imaging examination in those lesions were 68.5 ％(50/73),96.1％ (73/76),95.5％ (42/44),95.1％ (58/61) and 90.3％ (28/31),respectively.The detection rates of pancreatic calcification or lithiasis and pancreatic ductal lesion in pathological examination were significantly higher than those of the others,and differences were statistically significant (x2=33.764 and 37.932,both P＜0.01).The sensitivity of imaging examination in pancreatic calcification or lithiasis was lower than those of the others and the differences were statistically significant (x2 =36.526,P＜0.01).Among 125 CP patients with 223 pancreatic lesions detected by imaging examination,the rates of patients with 0,1,2,3,4 lesions accounted for pancreatic were 5.6％ (7/125),40.0％ (50/125),28.8％ (36/125),21.6％ (27/125) and 4.0％ (5/125),respectively.Of patients with pancreatic calcification or lithiasis,pancreatic ductal lesions,abnormal pancreatic morphology and pancreatic lesions detected by pathological examination,there were 23.7 ％(17/73),20.0％ (15/76),22.6％ (10/44) and 27.9％ (17/61) cases accompanied with LSPH,there was no difference between these groups (x2 =1.262,P=0.738).Conclusion LSPH may be a reference for CP diagnosis by imaging examination.

Parallel Shunt for the Treatment of Transjugular Intrahepatic Portosystemic Shunt Dysfunction

OBJECTIVE: To investigate the safety, efficacy and long-term patency of parallel shunts (PS) in the management of the transjugular intrahepatic portosystemic shunt (TIPS) dysfunction. MATERIALS AND METHODS: Between March 2007 and October 2010, 18 patients (13 men and 5 women) who underwent TIPS revision with the creation of PS were evaluated retrospectively. In the first 10 patients, a 10-mm-diameter Wallgraft endoprosthesis was deployed; in the latter 8 patients, an 8-mm-diameter Fluency endoprosthesis was deployed. RESULTS: The creation of PS was technically successful in all patients. The mean +/- standard deviation portosystemic pressure gradient before and after the procedure was 25.5 +/- 7.3 mm Hg (range, 16-37 mm Hg) and 10.9 +/- 2.3 mm Hg (range, 7-16 mm Hg), respectively. The duration of follow-up was 16.7 +/- 10.8 months (range, 6-42 months). The primary shunt patency rates at 12 months after the creation of PS was 70% with Wallgraft endoprostheses and 87.5% with Fluency endoprostheses. CONCLUSION: TIPS revision with the creation of PS is a safe, effective and durable method for treating shunt dysfunction.

Risk factors for early rebleeding after elective endoscopic variceal ligation(EVL) and long-term outcome: a retrospective analysis / 中华消化内镜杂志

Objective To evaluate the risk factors for early rebleeding (ERB) after elective endoscopic variceal ligation (EVL) in cirrhotic patients and the influence of ERB on the long-term survival.Methods A total of 198 cirrhotic patients who received elective EVL were retrospectively evaluated.Twenty-six patients rebleeded within 6 weeks after initial EVL and were assigned to the ERB group.One hundred and seventy-two other cirrhotic patients were assigned to the control group.Multivariate analysis was used to define the high risk factors of ERB.A Kaplan-Meier analysis was performed to evaluate the cumulative survival rates between two groups.Results The Child-Pugh classification (P =0.016),Child-Pugh scores (P=0.012),and the total bilirubin (P =0.001) were significantly different between ERB and control group.Multivariate analysis showed total bilirubin was the only independent risk factor of ERB (OR =2.02,95％CI:1.04-4.04,P =0.008).The proportional mortality indicator of bleeding-related deaths was 66.7％ (10/15) in ERB group and 13.6％ (6/44) in control group (P ＜0.01).The five-year curmulative survival rate of the control-group was significantly higher than that of the rebleeding group (67.8％ vs.25.3％,P ＜ 0.01).Conclusion Cirrhotic patients with ERB after elective EVL have a poor prognosis.High level of total bilirubin may predict ERB.

The expression research of histone acetylation and p21WAF1 in breast cancer / 中国医师杂志

Objective To research the expression change and the sense of histone acetylation and p21WAF1 protein in breast cancer. Methods Pathological morphologic changes of breast cancer were identified by H. E. staining. Immunohistochemical study for p21WAF1 protein expression was performed on 80 breast cancers and 80 normal breast tissues. The expressions of acetylated histone H3, H4 and p21WAF1 protein in 80 breast cancers and 80 normal breast tissues were analyzed by Western blot. Results H.E. staining discovered that the tissue structure and cell morphous of breast cancer had visible atypia, compared with normal breast tissues. The immunohistochemical results displayed that the positive expression of p21 WAF1 in 80 breast cancers and 80 normal breast tissues was 49 cases(61.25 %) or 3 cases (3.75%), respectively. There was significantly difference in the expression level between the 80 breast cancers and 80 normal breast tissues (P ＜ 0. 05). The expression levels of p21WAF1 protein in breast cancer tissues were higher than that in normal breast tissues, 0. 78 ± 0. 095 or 0. 65 ± 0. 055, respectively. The expression levels of acetylated histone H3, H4 protein in normal breast tissues were higher than those in breast cancer tissues. H3 was 2. 35 ± 0. 340 or 1.07 ± 0. 067, respectively, H4 was 3.44 ± 0. 202 or 1.11 ± 0. 086, respectively. There was significantly difference in the expression levels between the 80 breast cancers and 80 normal breast tissues (P ＜0. 01). Conclusions The occurrence and development of breast cancers may be related to the expression change of histone acetylation and p21WAF1 protein.