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 study the effect of nano-ceria on doxorubicin-induced cardiotoxic injury and its effect on P53 gene expression,and to explore the mechanism of nano-ceria on doxorubicin-induced cardiotoxic injury.Methods H9C2 myocardial cells were cultured and randomly divided into five groups:control group,model group(1μmol/L adriamycin),nano-cerium oxide group(10μg/ml nano-cerium oxide),experimental group(1μmol/L adriamycin +10μg/ml nano-cerium oxide),and positive control group(1μmol/L adriamycin+10μmol/L dexperimine).The adriamycin induced cardiotoxicity model was established,and the viability of myocardial cells was measured by CCK-8 method.The contents of lactate dehydrogenase(LDH)and malondialdehyde(MDA)in myocardial cells were detected by biochemical method.The levels of reactive oxygen(ROS)and the apoptosis rate in myocardial cells were detected by flow cytometry.The expressions of Bax,Bcl-2 and P53 proteins in myocardial cells were detected by Western blot.Results Compared with the control group,the cell viability was decreased in the model group,the cell LDH and MDA contents were increased,the intracellular ROS level and apoptosis rate were increased,the expressions of Bax and P53 proteins were increased,and the expression of Bcl-2 protein was decreased,and the ratio of Bcl-2/Bax was decreased(all P<0.001).Compared with the model group,the experimental group showed increased cell viability,decreased cell LDH and MDA contents,decreased cell ROS content and apoptosis rate,decreased Bax and P53 protein expressions,and increased Bcl-2 protein expression,and the Bcl-2/Bax ratio was increased(all P<0.001).Conclusion Ceria nanoparticles can effectively prevent adriamycin-induced cardiotoxic injury,and its effect may be related to the down-regulation of P53 gene to inhibit cardiomyocyte apoptosis.

Patients with severe trauma require an extremely timely treatment and transfusion plays an irreplaceable role in the emergency treatment of such patients. An increasing number of evidence-based medicinal evidences and clinical practices suggest that patients with severe traumatic bleeding benefit from early transfusion of low-titer group O whole blood or hemostatic resuscitation with red blood cells, plasma and platelet of a balanced ratio. However, the current domestic mode of blood supply cannot fully meet the requirements of timely and effective blood transfusion for emergency treatment of patients with severe trauma in clinical practice. In order to solve the key problems in blood supply and blood transfusion strategies for emergency treatment of severe trauma, Branch of Clinical Transfusion Medicine of Chinese Medical Association, Group for Trauma Emergency Care and Multiple Injuries of Trauma Branch of Chinese Medical Association, Young Scholar Group of Disaster Medicine Branch of Chinese Medical Association organized domestic experts of blood transfusion medicine and trauma treatment to jointly formulate Chinese expert consensus on blood support mode and blood transfusion strategies for emergency treatment of severe trauma patients ( version 2024). Based on the evidence-based medical evidence and Delphi method of expert consultation and voting, 10 recommendations were put forward from two aspects of blood support mode and transfusion strategies, aiming to provide a reference for transfusion resuscitation in the emergency treatment of severe trauma and further improve the success rate of treatment of patients with severe trauma.

Background::Although overnight fasting is recommended prior to endoscopic retrograde cholangiopancreatography (ERCP), the benefits and safety of high-carbohydrate fluid diet (CFD) intake 2 h before ERCP remain unclear. This study aimed to analyze whether high-CFD intake 2 h before ERCP can be safe and accelerate patients’ recovery.Methods::This prospective, multicenter, randomized controlled trial involved 15 tertiary ERCP centers. A total of 1330 patients were randomized into CFD group ( n = 665) and fasting group ( n = 665). The CFD group received 400 mL of maltodextrin orally 2 h before ERCP, while the control group abstained from food/water overnight (>6 h) before ERCP. All ERCP procedures were performed using deep sedation with intravenous propofol. The investigators were blinded but not the patients. The primary outcomes included postoperative fatigue and abdominal pain score, and the secondary outcomes included complications and changes in metabolic indicators. The outcomes were analyzed according to a modified intention-to-treat principle. Results::The post-ERCP fatigue scores were significantly lower at 4 h (4.1 ± 2.6 vs. 4.8 ± 2.8, t = 4.23, P <0.001) and 20 h (2.4 ± 2.1 vs. 3.4 ± 2.4, t= 7.94, P <0.001) in the CFD group, with least-squares mean differences of 0.48 (95% confidence interval [CI]: 0.26–0.71, P <0.001) and 0.76 (95% CI: 0.57–0.95, P <0.001), respectively. The 4-h pain scores (2.1 ± 1.7 vs. 2.2 ± 1.7, t = 2.60, P = 0.009, with a least-squares mean difference of 0.21 [95% CI: 0.05–0.37]) and positive urine ketone levels (7.7% [39/509] vs. 15.4% [82/533], χ2 = 15.13, P <0.001) were lower in the CFD group. The CFD group had significantly less cholangitis (2.1% [13/634] vs. 4.0% [26/658], χ2 = 3.99, P = 0.046) but not pancreatitis (5.5% [35/634] vs. 6.5% [43/658], χ2 = 0.59, P = 0.444). Subgroup analysis revealed that CFD reduced the incidence of complications in patients with native papilla (odds ratio [OR]: 0.61, 95% CI: 0.39–0.95, P = 0.028) in the multivariable models. Conclusion::Ingesting 400 mL of CFD 2 h before ERCP is safe, with a reduction in post-ERCP fatigue, abdominal pain, and cholangitis during recovery.Trail Registration::ClinicalTrials.gov, No. NCT03075280.

Emerging SARS-CoV-2 variants have made COVID-19 convalescents susceptible to re-infection and have raised concern about the efficacy of inactivated vaccination in neutralization against emerging variants and antigen-specific B cell response. To this end, a study on a long-term cohort of 208 participants who have recovered from COVID-19 was conducted, and the participants were followed up at 3.3 (Visit 1), 9.2 (Visit 2), and 18.5 (Visit 3) months after SARS-CoV-2 infection. They were classified into three groups (no-vaccination (n = 54), one-dose (n = 62), and two-dose (n = 92) groups) on the basis of the administration of inactivated vaccination. The neutralizing antibody (NAb) titers against the wild-type virus continued to decrease in the no-vaccination group, but they rose significantly in the one-dose and two-dose groups, with the highest NAb titers being observed in the two-dose group at Visit 3. The NAb titers against the Delta variant for the no-vaccination, one-dose, and two-dose groups decreased by 3.3, 1.9, and 2.3 folds relative to the wild-type virus, respectively, and those against the Omicron variant decreased by 7.0, 4.0, and 3.8 folds, respectively. Similarly, the responses of SARS-CoV-2 RBD-specific B cells and memory B cells were boosted by the second vaccine dose. Results showed that the convalescents benefited from the administration of the inactivated vaccine (one or two doses), which enhanced neutralization against highly mutated SARS-CoV-2 variants and memory B cell responses. Two doses of inactivated vaccine among COVID-19 convalescents are therefore recommended for the prevention of the COVID-19 pandemic, and vaccination guidelines and policies need to be updated.

【Objective】 We combined the concept of traditional medicine with magnetic induction technology, originally brought up the research concept of magnetic hyperthermia to cure KOA, explored the mechanism and constructed a new treatment of KOA with modern medical features. 【Methods】 Through establishing a primary KOA model in rats and constructing ferrimagnetic vortex domain iron oxide nanorings (FVIOs) as a platform for highly efficient magnetic hyperthermia agent, the lesions of KOA were heated accurately under the low-intensity magnetic field. We confirmed the curative effect through the results of pain perception, histopathology, knee joint morphology and microscopic bone structure and the content of serum inflammatory factor, to study the therapeutic mechanism of magnetic hyperthermia for KOA. 【Results】 Compared with the model group, the recovery of mechanical pain threshold after magnetic hyperthermia improved by approximately 48.9%; the degree of hyperemia and edema of joint capsule and synovial tissue and the wear degree of joint cartilage surface, were significantly reduced; the Mankin and OARSI scores decreased by about 33% and 20%, respectively; the MicroCT results indicated that the degree of hardening of the subchondral bone also improved; the expression of inflammatory factors in the serum was reduced. 【Conclusion】 In this study, we utilized the FVIOs as a high-efficiency magnetic hyperthermia platform for the treatment of KOA. The efficacy of magnetic hyperthermia on KOA is clarified, and the mechanism is related to the inhibition of inflammatory factors.

Objective:To explore the clinical efficacy of a retrograde pubic ramus intramedullary nail (RPRIN) in the treatment of anterior pelvic ring fractures.Methods:A retrospective study was conducted to analyze the 14 patients with anterior pelvic ring fracture who had been treated and followed up at Department of Traumatic Surgery, Tongji Hospital From June 2020 to February 2021. There were 10 males and 4 females with an age of (44.8±12.5) years. By the AO/OTA classification for pelvic fractures, 5 cases were type 61-A, 4 cases 61-B, and 5 cases type 61-C; by the Nakatani classification, 1 case belonged to unilateral zone Ⅰ fracture, 5 cases to unilateral zone Ⅱ fracture, 2 cases to unilateral zone Ⅲ fracture, 3 cases to right zone Ⅱ and left zone Ⅲ fracture, 2 cases to zone Ⅲ fracture on both left and right sides, and 1 case to zone Ⅱ fracture on both sides. The time from injury to operation was (7.8±1.8) days. All the anterior pelvic ring fractures were fixated with a RPRIN. The time and fluoroscopic frequency for placement of every single RPRIN, quality of fracture reduction, and pelvic function and incidence of postoperative complications at the last follow-up were recorded.Results:A total of 18 RPRINs were placed in the 14 patients. For placement of each RPRIN, the time was (35.9±8.6) min, and the fluoroscopic frequency (22.8±1.9) times. No complications such as infection occurred at any surgical incision after RPRIN placement. According to the Matta scoring, the quality of postoperative fracture reduction was assessed as excellent in 7 cases, as good in 5 cases and as fair in 2 cases. The 14 patients were followed up for (18.1+1.5) months. Their X-ray and CT images of the pelvis at the last follow-up showed that the fractures healed well and the intramedullary nails were placed in the cortical bone of the anterior ring of the pelvis. According to the Majeed scoring at the last follow-up, the pelvic function was assessed as excellent in 10 cases, as good in 3 cases and as fair in 1 case. One patient reported discomfort during squatting 2 months after operation but the symptom improved 3 months later without any special treatment. No patient experienced such complications as displacement or slippage of RPRIN, or pain at the insertion site.Conclusion:RPRIN is effective in the treatment of anterior pelvic ring fractures, showing advantages of small surgical incision, limited intraoperative fluoroscopy and short operation time.

Objective:To investigate the early clinical outcomes of a minimally invasive anterolateral approach (Orthopadische chirurgie munchen, OCM) versus a conventional (posterolateral approach, PLA) hemiarthroplasty in the treatment of senior femoral neck fractures.Methods:A retrospective analysis was performed on 90 elderly patients with femoral neck fractures who received anterolateral and posterolateral approaches for hemiarthroplasty in the Second Affiliated Hospital of Soochow University from December 2019 to June 2021 and were followed up. In the OCM group, there were 45 cases, including 18 males and 27 females, aged 83.33±5.29 years (range, 76-96 years); In the PLA group, there were 45 cases, including 13 males and 32 females, aged 81.87±5.00 years (range, 75-94 years). Postoperative, surgical indices, perioperative bleeding, and soft tissue injury were assessed; pain was assessed using the visual analogue scale (VAS), and hip function was evaluated using the Harris score and the University of California at Los Angeles (UCLA) score.Results:The incision length, postoperative hospital stay, hemoglobin reduction, and occult blood loss were lower in the OCM group than in the PLA group ( P<0.05), but there was no significant difference in intraoperative bleeding and postoperative transfusion rate ( P>0.05). Serum creatine kinase and C-reactive protein levels (232.98±83.70 IU/L and 81.67±48.85 mg/L) were lower in the OCM group than in the PLA group (296.93±124.58 IU/L and 104.79±36.75 mg/L) 1 day after surgery, and the differences were statistically significant ( t=2.86, P=0.005; t=2.54, P=0.013). Postoperative pain was significantly improved in all patients, and VAS scores were lower in the OCM group than in the PLA group at 12 h, 24 h, and 48 h postoperatively ( P<0.05). The time to get out of bed after surgery was 20.73±4.99 h in the OCM group compared with 41.69±13.58 h in the PLA group, with a statistically significant difference ( t=9.71, P<0.001). Harris scores (63.31±6.21 and 75.76±4.91) and UCLA scores (1.84±0.42 and 3.69±0.76) were higher in the OCM group on the day of discharge and at 1 month postoperatively than in the PLA group (52.69±10.01 and 71.33±3.66); (1.62±0.54 and 3.16±0.80) points, all with statistically significant differences ( P<0.05). However, the differences in Harris score and UCLA score between the two groups at 6 months postoperatively were not statistically significant ( P>0.05). There were two cases of intermuscular vein thrombosis in the OCM group, with a complication rate of 4% (2/45), and one case of dislocation in the PLA group, with a complication rate of 2% (1/45), there was no significant difference between the two groups ( P=1.000). Conclusion:The minimally invasive anterolateral approach is a more ideal procedure for elderly patients with femoral neck fractures undergoing hemiarthroplasty. It has the advantages of a short incision, small soft tissue damage, low occult blood loss, early removal from bed, a short postoperative hospital stay, an improvement in pain, and a good early recovery of hip function.

Objective:To evaluate the use of serosa muscular layers circumferential incision combined with mucosal layer cutting and closure by laparoscopic or robotic surgery for gastrointestinal mesenchymal tumors at difficult sites of the stomach.Methods:From Jul 2019 to Apr 2021, 18 gastric mesenchymal tumor patients undergoing serosa muscular layers circumferential incision combined with mucosal layer cutting and closure by laparoscopic or robotic surgery at the Department of Surgery, the Fourth Hospital of Hebei Medical University were retrospectively analyzed.Results:All 18 patients had successful surgery, including 7 cases of robotic surgery, 11 cases of laparoscopic surgery, and there was no conversion to open surgery. Tumors were at the gastric in cardia, 8 cases at the gastric body and lesser curvature in 4 cases, and at the gastric antrum in 6 cases, respectively. Eleven cases were of endogenous and 7 cases were of dumbbell type. The average operation time was (99±29) min, the intraoperative blood loss was (10±5) ml, the first time taking food per mouth was (2.0±1.0) d, and the postoperative hospital stay was (4.9 ± 1.2) d. Pathology showed gastrointestinal stromal tumor in 11 cases, leiomyoma in 5 cases and schwannoma in 2 cases. All were with negative margins. The average tumor diameter was (4.7±1.4) cm. The median follow-up time was 16.5 months, and there was no sign of tumor recurrence or metastasis.Conclusion:The serosa muscular layers circumferential incision combined with mucosal layer cutting and closure technique in laparoscopic or robotic surgery is a safe and feasible procedure for treating gastrointestinal mesenchymal tumor at difficult sites of the stomach.

OBJECTIVE To systematically review the effects of body weight on the efficacy and safety of novel oral anticoagulants （NOACs） or aspirin for the prevention of venous thromboembolism （VTE） after total hip arthroplasty and total knee arthroplasty （hereinafter referred to as “hip and knee arthroplasty”）. METHODS Retrieved from PubMed， Embase and Cochrane library， randomized controlled trial （RCT） and non-RCT about the effectiveness and/or safety of NOACs， aspirin and low- molecular heparin by subgrouping according to body weight or body weight index [BMI 18.5-＜25 kg/m2 as normal body mass， BMI 25-30 kg/m2 as overweight， and BMI＞30 kg/m2 as obesity （of them， BMI＞40 kg/m2 as morbid obesity）] were collected from the inception to June 30， 2022. After literature screening and data extraction， the quality of RCT was evaluated with bias risk assessment tool RoB 2.0 recommended by Cochrane system evaluator manual. The Newcastle-Ottawa scale was used to evaluate the quality of non-RCT. Meta-analysis was performed by using RevMan 5.4 software. RESULTS A total of 6 literatures， containing 3 series of RCT pooled studies and 3 non-RCTs were included. The results of meta-analysis showed that among different BMI subgroups， there was no statistical significance in reducing major VTE and VTE-related mortality of patients with normal body mass patients [OR＝0.63， 95%CI（0.26，1.51），P＝0.30]， overweight patients [OR＝0.48，95%CI（0.22，1.04），P＝0.06] and obese patients [OR＝0.70，95%CI（0.40，1.25），P＝0.23] by NOACs， compared with enoxaparin. The safety of NOACs was comparable to that of enoxaparin in different BMI subgroups in terms of the incidence of major bleeding events and major+clinically relevant non- major bleeding events （P＞0.05）. There was no statistical significance in the incidences of total VTE [OR＝1.28， 95%CI （0.68，2.40）， P＝0.45]， symptomatic VTE and all-cause mortality [OR＝1.26， 95%CI （0.81，1.95）， P＝0.30] and major bleeding [OR＝0.79， 95%CI （0.58，1.08）， P＝0.14] in obese/morbidly obese patients using NOACs and aspirin， compared with normal/overweight patients. CONCLUSIONS The impact of body weight on the efficacy and safety of NOACs and aspirin for the prevention of VTE after hip and knee arthroplasty is not significant， and this study supports that overweight and obese patients receive NOACs or aspirin for VTE prevention.