Objective To analyze the antiangiogenic effect of stereotatic radiosurgery (SRS) in rat C6 gliomas using MR perfusion imaging(PWI) technique. Methods Twenty rats implanted with C6 glioma cells in the brain were randomly assigned into group A (without any therapy) and group B which underwent SRS therapy 4 weeks after implantation. PWI was performed to measure the regional cerebral blood volume (rCBV) and regional cerebral blood flow (rCBF) in tumor's region before therapy in all rats and 1 week later in group B. PWI sequence was applied pre-and post--inhalation of a mixture of 10% CO_2 and 90% air. rCBV and rCBF were analyzed. PaCO_2 and blood PH values were monitored before and aftermixed gas inhalation. All the MRI examination were car-ried out at a 3.0T magnet. The rats were sacrificed after MRI examination. Microvessel density (MVD) and number of mature ves-sels (with muscle layer) were measured histologically using immunohistochemical staining for factorⅧ and smooth muscle actin (SMA). PWI data, and pathological results were analyzed statistically. Results The size of tumors in group B remarkably de-creased with obvious necrotic area in the center 1 week after SRS therapy. PH value decreased and PaCO_2 increased significantly af-ter mixed gas inhalation. Blood gas data changes in group B were not significantly different from that in group A. The rCBV and rCBF of tumor's core in group B declined greatly after SRS treatment. The necrotic area was dark in rCBV and rCBF maps, that suggested no blood supply in this region. After therapy, the changing rate of rCBV and rCBF pre-and post-inhalation of gas in group B was greater than those in group A. The MVD of tumors in group B after treatment was sta-tistically less than that in group A. The number of SMA positively stained vessels in group B was nearly equal to that in group A. The percentage of SMA(+)/MVD in group B was significantly higher than that in group A. Conclusion SRS can inhibit the angiogenesis of rat C6 glioma, however vessels with smooth muscle cells are insensitive to SRS.

Objective To evaluate the feasibility of MR PWI in judging maturity and variability of tumor vasculature in gliomas in rats.Methods Twenty male SD rats were randomly assigned to tumor group and control group.Four weeks after implantation of C6 glioma cells in the brains of tumor group and injection of saline in the brains of control group,all rats were examined using MR PWI before and after inhalation of a mixture of 10% CO2 and 90%air.PaCO2 and blood pH values of rats were monitored.Relative cerebral blood volume(rCBV)and relative cerebral blood flow(rCBF)values of tumors and normal brain tissue were measured.Brain sample were examined histologically using HE and immunohistochemical staining for smooth muscle actin(SMA).The histological features of gliomas were observed and SMA positively stained vessels of each tumor were counted manually using a light microscope.Perfusion data and pathological findings were analyzed statistically with SPSS for Windows.Results PaCO2 increased significantly[from(4.69±0.62)kPa to(7.62±0.81)kPa in tumor group and from(4.67±0.51)kPa to(7.63±0.78)kPa in control group,P＜0.05)after inhalation of the mixed gas.The rCBV and rCBF values of tumor core were remarkably greater than those of normal contralateral brain tissue.The increasing rate of rCBV and rCBF values in gliomas[(26±17)%and(26±18)%respectively]were significantly less than those in normal brain tissue[(90±32)%and(45±14)%repectively](t=5.05 and 2.355,P＜0.05)Immunohistochemical staining of 10 tumors as well as contralateral brain tissue all demonstrated positive SMA expression in the smooth muscles of the vessels.The vascular walls of positive SMA labeled vessels within tumors were thinner and their vascular lumen wider than those within normal brain tissues.The number of SMA(+)vessels in tumors[(6.7±2.8)/HP]was statistically less than that in contralateral brain tissue[(12.7±2.8)/HP](t=1.86,P＜0.01).Changing rate of rCBV,rCBF of the tumor cores and number of the positive SMA labeled vessels showed no correlation(r=0.504 and 0.607,P＞0.05),while changing rate of rCBV,rCBF in normal brain tissue correlated well with number of positive SMA labeled vessels(r=0.721 and 0.525,P＜0.05).Conclusion PWI can detect the hemodynamic change induced by PaCO2 increase in the normal brain and in the tumor.It may be a useful technique to measure maturity of tumor vessels.

Objective Study of interleukin-6 (IL-6),erythrocyte sedimen-tation rate (ESR),C-reactive protein (CRP) in diagnosis and treatment of abdominal aortic aneurysm.Methods Between June 2014 and May 2016,we detected of abdominal aortic aneurysm in 62 cases that were diagnosed and treated at Department of Vascular Surgery,People's Hospital of Xinjiang Uygur Autonomous Region including interleukin-6,erythrocyte sediinen-tation rate,and C-reactive protein.Results There was no significant difference between interleukin-6,erythrocyte sedimen-tation rate and C-reactive protein in the patients with and without complications.The correlation analysis results of interleukin-6,erythrocyte sedimen-tation and C-reactive protein were confirmed to have positive correlation respectively.Compared with non special types of rupture (48.0 ± 34.2) pg/ml,interleukin-6 was higher in special types of rupture (187.6 ± 110.4) pg/ml.Conclusions Preoperative detection of interleukin-6,erythrocyte sedimen-tation and C-reactive protein,combined with patient history and imaging examination were help for predict cause,choose better surgical approach and predict the prognosis in certain guiding significance.

To study the traditional Chinese medicine (TCM) syndrome distribution in patients with hepatitis B virus (HBV) infection in Qidong region of Jiangsu Province, China.

Gauze packing and drainage is a routine treatment for various types of fistula and sinus pressure ulcers. Because the external orifice of pressure ulcer or fistula is relatively small and the sinus deep, the conventional gauze packing has many drawbacks. Under the situation the operator is not skillful enough and no appropriate tools, it is necessary to pull the external orifice by tweezers to dilate the sinus and perform gauze packing and drainage, which brings great pain to patients, possibly leading to wound enlargement and delayed healing. At present, there is lack of auxiliary tools to improve gauze packing. Therefore, we developed and designed a gauze filler for packing and drainage of various kinds of fistula and sinus pressure ulcers, the device has the following advantages: good drainage effect, simple operation, low cost, safety and effectiveness. It not only improves the comfort of patients, reduces the number of dressing changes, reduce the number of dressing changes, shorten the hospitalization time and pay expense, but also reduces the burden of medical workers thus it is worthwhile to popularize and apply the newly designed gauze filler in clinical practice.

Upper limb injury is a common disease in hand surgery. After surgery, it is necessary to raise the patient 's arm to reduce limb swelling and promote recovery. In clinic, clothes or pillows are usually placed under the arm to raise it, but in this way the arm cannot be fixed well and easily slide down, without ideal raising effect. Therefore, the upper limb raising pad for assisting the raising of the affected limb is specially designed. The device is composed of shell, mounting plate, strut, elastic band and spring. The position of the strut is adjusted by squeezing or lifting the spring, so as to change the inclination angle of the mounting plate and to adjust the raising height of the upper limb. After the height is determined, the affected limb is placed comfortably and then fixed with the elastic band. The device can freely adjust the raising height of the affected limb and effectively fix the affected limb to reduce its swelling, thus promoting recovery. This device is worthy to be clinically popularized and applied.

The proportion of boardline resectable pancreatic cancer (BRPC) is relatively high in patients with pancreatic cancer. At present, the main therapeutic treatment of BRPC is surgical resection after neoadjuvant therapy. Therefore, the neoadjuvant therapy of BRPC has drawn more and more attention in recent years. Once making a breakthroug in the treatment plan, it can greatly improve the overall prognosis of patients with pancreatic cancer. In this study, the development process, specific programs, advantages and disadvantages of each plan and the current research progress of BRPC neoadjuvant therapy are discussed.

Objective:To compare the effectiveness and safety of laparoscopic hepatectomy (LH) versus radiofrequency ablation (RFA) in treatment of hepatocellular carcinoma (HCC).Methods:The medical literatures on LH and RFA for HCC were searched in PubMed, Web of Science, Embase, VIP, Wanfang, CNKI and other electronic databases. The retrieval date was from database construction to June 7, 2021. According to the inclusion and exclusion criteria, studies were extracted by two authors, and Revman 5.3 software was used to conduct a meta-analysis to compare differences in operation time, blood loss, length of hospital stay, total complications, overall survival and disease-free survival outcomes between the LH group and the RFA group.Results:Of 3 690 patients who were included in 32 studies, there were 1 708 patients in the LH group and 1982 patients in the RFA group. Meta-analysis showed that compared with the LH group, the RFA group had significantly shorter surgical duration ( MD=-86.41, 95% CI: -116.21--56.60), less blood loss ( MD=-213.22, 95% CI: -273.43--153.00), shorter hospital stay ( MD=-3.23, 95% CI: -4.13--2.32), and lower incidence of complications ( OR=0.33, 95% CI: 0.26-0.43). However, local recurrence rate was significantly higher ( OR=1.83, 95% CI: 1.38-2.41). (All P<0.05). The 5-year survival rate of the LH group was significantly better than the RFA group ( OR=0.68, 95% CI: 0.51-0.90, P=0.008). Conclusion:LH provided better overall survival outcomes and lower local recurrence rates than RFA in HCC patients.

The infection of blood-borne diseases in medical workers mainly caused by ampule bottles, injection needles, infusion needles, surgical blades and all kinds of medical sharp instruments. Standardize the usage of sharp collection box can effectively prevent sharp injury. However, it has been found some shortcomings in practice and the varieties are few and specifications are unitary. Therefore, the medical workers of general surgery department of Subei People's Hospital in Jiangsu Province designed a new type of sharp collection box, which is convenient to collect sharps and prevent stabs. It is safe and reliable. The product is a hard container, which composes of box body, funnel input port and collection box. The box body is used to hold sharps, and its upper part is a funnel-shaped sharps input port. In order to reduce the possibility of stab and recycle the dropped sharps, we designed a flanging around the funnel input port, which can prevent the sharps from falling. In addition, a transparent observation port is arranged at 3/4 of the sharps box volume, which can facilitate the timely disposure of sharps. Compared with the traditional sharps box, the new funnel sharps collection box can safely collect various medical sharps and reduce the stab probability and occupational exposure risk of medical personnel.

The scalpel is the most practical tool for surgeons. The traditional scalpel is a blade with a split handle, but the length of the blade cannot be adjusted, and it is easy to scratch medical staff. In order to solve the above problems, a retractable scalpel handle was designed by the medical staffs of department of general surgery, Affiliated Hospital of Yangzhou University (Clinical Teaching Hospital of Dalian Medical University), and obtained the National Utility Model Patent of China (ZL 2019 2 0203154.9). The telescopic scalpel adopted the design of rotary telescopic sleeve and threaded column handle to achieve the purpose of built-in blade. By rotating the handle at one end of the handle, the length of the surgical blade extending out of the sleeve could be adjusted according to the actual needs. The structure of the device is simple and easy to operate. The adjustable blade length could also achieve the purpose of accurate operation while effectively avoiding the injury of medical personnel during the operation.