Objective To compare the operative results of removing large olfactory groove meningiomas(diameter≥3 cm)using either a unilat?eral or bilateral subfrontal approach ,and to determine whether there is an advantage in the unilateral approach. Methods Sixty?nine cases of large olfactory groove meningioma,treated in our department,by either a unilateral or bilateral subfrontal approach microsurgery were retrospec?tively reviewed. Removal grading,post?operative complications,and other clinical indices were evaluated. Results Total resection(Simpson Ⅰ or Ⅱ)was achieved in all the cases. There were lesser complications with use of the unilateral subfrontal approach. Conclusion Patients with ol?factory groove meningioma have a good prognosis when a unilateral subfrontal approach is used for surgery.

Intravascular stent as a foreign body exhibits obvious reaction following implantation,such as activation of coagulation system and elevation of serum C-reactive protein,inflammatory marker.After platelet is activated,P-selectin binds to the glycoprotein ligand 1 expressed on leukocyte,and forms congeries on the leukocyte.In addition,interleukin-1?,interleukin-6 and tumor necrosis factor-? are greatly secreted.The two factors are main reasons for restenosis following stent implantation.Studies on spiral CT angiography and transcranial Doppler sonography are important.

ObjectiveTo investigate the risk factors and morbidity of carotid atherosclerosis (CA) and unstable plague in patients with sleep apnea-related hypertension (SA-RH).MethodsA total of 603 SA-RH subjects screened by polysomnography according to apnea hypopnea index (AHI) were recruited and divided into 3 groups:mild (AHI 5-15 ),moderate (AHI 15-30) and severe (AHI ≥ 30) group,with hypertensive patients with AHI less than 5 served as control.CA was determined by doppler ultrasound as formation of plaque and/or intima-media thickness more than 0.9 mm.Unstable atheroma plaque (UAP) was defined as low echo plaque and/or admixing echo plaque.Results Gender,age,BMI and blood pressure were not matched among groups.The prevalence of CA increased in moderate and severe SA-RH than that in control ( P ＜ 0.01 ) with no significant difference for UAP among groups.Factor analysis was performed to extracted common factors that may influence CA and UAP,such as factor 1-6,represent obstructive sleep apnea (OSA),dyslipidemia (TC,LDL),BMI,blood pressure,age and duration of disease and dyslipidemia (TG,HDL) respectively.Logistic analysis show that OSA and dyslipidemia (TC,LDL) increased the risk of CA,with OR 1.36(95％ CI 1.15-1.59),1.31 (95％ CI 1.12-1.54)respectively,and dyslipidemia (TC,LDL) increased the risk of UAP,with OR 1.30 (95％ CI 1.06-1.58).ConclusionsIn SA-RH populations,higher prevalence of CA may be associated with severity of OSA independently,meanwhile the formation of UAP may be mainly associated with dyslipidemia.

ObjectiveTo understand condition about cost and economic burden of outpatients in countries and townships medical institutions in Xinjiang.MethodsThirty-one medical institution were selected and the cost and income of one-day outpatients were investigated,then the cost of different diseases,age groups and payment methods and the later disease cost burden were analyzed.ResultsOut-patient expenses of top ten common diseases was pneumonia100.12 yuan,injury 85.18 yuan,hypertension and coronary heart disease(CHD) 69.13 yuan,examination and diseases related to pregnancy 49.60 yuan,disease of the genitourinary system 41.71 yuan,enterogastrtis 34.80 yuan,bronchitis 30.72yuan,osteoarthrosis 24.60 yuan,upper respiratory infection ( URI ) 23.63 yuan,scytitis 21.14yuan;The outpatient expenses of those taking part in Neotype Countryside Cooperative Medical Care Insurance,whose family-month-income was less than 250 yuan,was 18.07 yuan,which disease cost burden was 25.56％.ConclusionThe expenses of infectious diseases in country and township hospitals was in the top ten.The cost of chronic non-communicable diseases was rising significantly;For those participating Neotype Countryside Cooperative Medical Care Insurance,the outpatient expenses was low and the disease economic burden was higher.

BACKGROUND: More attention has been paid upon the injury effect resulted from the decrease of superoxide dismutase(SOD) activity and increase of malonaldehyde (MDA) content in brain. Whether pig brain peptide solution can pass blood-brain barrier and penetrate into brain tissue and protect brain nerve is still found in limited cases reports. Relevant reports are still rare both in China and abroad.OBJECTIVE: To explore the effect of pig brain peptide solution on SOD activity and MDA content in brain and liver of senile model mice made by D-galactose.DESIGN: Experimental animals-based randomized and controlled experimental observation.SETTING: Institute of Senile Medical of General Hospital of Chinese PLA.MATERIALS: The experimant was made in the Institute of Senile Medical (Chinese PLA key laboratory) of General HosPital of Chinese PLA from February to April 2001. Totally 82 NH mice, weighted from 18 to 22 g, half male and half female, were provided by the Medical Experimental Animal Center of General Hospital of Chinese PLA. These mice were randomly divided into the control group, hige dose group, middle dose group, low dose group, aniracetam group (positive control group), and D-galactose group.METHODS: Each group was given drugs seperately for 6 weeks. The senile mice model was induced by D-galactose. SOD activity of each group was checked with chemiluminescence method and MDA content examined with thiobarbituric acid colourimetry method.MAIN OUTCOME MEASURES: SOD activity and MDA content of mice in each group.RESULTS: Pig brain peptide solution with high and middle doses significantly increased SOD activity[ (30.23 ± 5.23), (29.65 ± 4. 88 );(19. 84 ± 5.79), (16.75 ± 5.32) μkat/g respectively], and decreased MDA content[ (630.00 04; 8(34): 7748-50CONCLUSION: Pig brain peptide solution has obvious antioxidative effect, and has certain protective effects on brain nerve cells and liver cells of senile mice.

Objective: To study change of serum high sensitive cardiac troponin T (hscTnT) concentration in coronary circulation of patients with non ST-elevation acute coronary syndrome (NSTE-ACS). Methods: The subjects were all selected from our hospital, including 46 NSTE-ACS patients （NSTE-ACS group）, 42 patients with stable angina pectoris (SAP group) and 30 cases with negative coronary angiography results（healthy control group）The hscTnT concentrations in coronary venous sinus, coronary artery (CA) and peripheral serum were measured in three groups respectively. The results were compared and analyzed. Results: Compared with healthy control group, the hscTnT concentrations in coronary venous sinus, CA and peripheral venous serum all significantly increased in NSTE-ACS group and SAP group, P<0.01 all. Compared with hscTnT levels in CA and peripheral venous serum, there was significant increase in coronary venous sinus [(0.9657±0.5863) μg/L vs. (0.9562±0.7853) μg/L vs. (1.3018±1.1024) μg/L, P<0.05] in NSTE-ACS group. Conclusion: The serum hscTnT concentrations in peripheral vein, coronary artery and coronary venous sinus all significantly increase in NSTE-ACS patients, especially in coronary venous sinus.

Objective To explore the application value of multiphase dynamic contrast-enhanced MRI (MDCE-MRI) in the early chemoradiation efficacy in cervical cancer.Methods Twenty-one patients with cervical cancer received chemoradiation.Routine MR scan and MDCE-MRI scan were examined at different stages, including pre-treatment, 15 days,1 month and 2 months after treatment.According to volume change of the tumor after treatment, the cases were mainly divided into complete remission(CR), partial remission (PR).The correlation between volume change of cancer after treatment and the time-signal intensity curve (TIC),mean time to enhancement(MTE),time to peak(TTP),maximum slope of increase(MSI),maximum slope of decrease(MSD), negative enhancement integral (NEI) were analysed.Results After system chemoradiation for 2 months,4 of enrolled patients got complete remission and 17 partial remission.The reduction rate of the tumor diameter was negatively correlated to MSI values(r=-0.877,P<0.05) and positively related with NEI (r=0.819,P<0.05) before the treatment.15 days after the treatment, the diminished rate of the tumor diameter had active relation with change of TTP(r=0.765,P<0.05) and NEI(r=0.775,P<0.05).It indicated that MSI and NEI values before cervical cancer chemoradiation and the variation of TTP and NEI after treatment for 15 days could help predict the variation tendency of cancer diameter.Chemoradiation and therapy 1 month later,for all the parameters'' AUC values,the change rate of NEI were the largest one.When the critical value was not less than 96.46%, the sensitivity was 82.4%, specificity was 75%.TIC curve of type Ⅰ increased, type Ⅲ decreased to disappear gradually.Conclusion MDCE-MRI can be used to predict the efficacy of chemoradiation in cervical cancer patients, of which the MSI, TTP and NEI are more sensitive.

Objective To compare the clinical effects of guided tissue regeneration (GTR) combined with different bone graft materials, including Bio-Gene, Bone3 and Bio-Oss, in the treatment of periodontal intra-bony defects. Methods Eighteen patients with chronic periodontitis with periodontal intra-bony defects were randomly divided into the Bio-Gene group, the Bone3 group and Bio-Oss group. After periodontal debridement, periodontal bone grafting combined with GTR surgery was performed in all patients. The clinical and radiographic parameters of patients were collected before surgery, suture removal (2 weeks after surgery), and 6 months after surgery, including periodontal exploration depth (PD), clinical attachment loss (CAL), gingival recession (GR), and residual alveolar bone height (RBH). Results The wounds healed well in all patients when the suture was removed. The stage Ⅰ healing was obtained without infection or wound dehiscence, and the postoperative discomfort was acceptable. At 6 months after periodontal bone grafting combined with GTR treatment, the PD and CAL indexes in the three groups were significantly improved compared with those before surgery (all P<0.05), and there was no significant difference in PD and CAL between the three groups (all P>0.05). Imaging results showed that new bone formation was observed in the original bone defect area in all three groups after 6 months of the treatment, the bone density was similar to the surrounding bone tissue. Besides, the RBH％increased significantly compared with that before the treatment (all P<0.05), and there was no significant difference in RBH％among the three groups (all P>0.05). Conclusions Bio-Gene, Bone3 and Bio-Oss are all reliable bone graft materials for the treatment of alveolar bone defects caused by periodontitis, which can significantly improve the osteogenesis effect.

Objective:To evaluate the medium and long term clinical effect of three bone graft materials on periodontitis after periodontal regeneration.Methods:Initially, 16 patients with periodontitis after periodontal regeneration in Tianjin Stomatological Hospital from July 2017 to November 2018 were divided into three groups: Bio-Oss ( n=6), Bio-Gene ( n=5) and Bone 3(n=5) according to the differences in bone materials. Clinical and radiological results were evaluated at pre-surgery, post-6 months, and post-4 years. Results:The 6-month and 4-year clinical follow-up showed that, the depth of exploration (PD) and clinical attachment loss (CAL) of patients in the three groups were lower than those before operation (all P<0.05), and the changes of PD (ΔPD) and CAL (ΔCAL) were not statistically significant (all P>0.05). There was no statistically significant difference in gingival recession (GR) between the three groups (all P>0.05), and there was no statistically significant difference in the change of GR (ΔGR) between the groups (all P>0.05). From 6 months to 4 years after operation, there was no significant difference among ΔGR, ΔPD and ΔCAL groups (all P>0.05). At 6 months and 4 years after operation, the residual alveolar bone height (RBH%) of the three groups was significantly higher than that before operation (all P<0.05), and there was no significant difference between the two groups (all P>0.05); From 6 months to 4 years after operation, there was no significant difference in RBH% between the groups (all P>0.05). Conclusions:Three kinds of bone graft materials have significant clinical effects on periodontitis after periodontal regeneration, which can provide a reference for the selection of clinical regeneration materials.

Objective To improve the system of specialized training by exploring the role of multimodal navigation in the teaching of neurosurgery.Methods The questionnaire was conducted by the experts to obtain the detailed information of 20 residents.They were randomly divided into two groups:the traditional teaching group (n=10) and the multimodal navigation group (n=10).The details were evaluated from the reaction layer,the learning layer,the behavior layer and the result layer by the Kirkpatriek's model.The data were analyzed by SPSS 17.0.The quantitative data were described by mean ± standard deviation and the qualitative data was described by rate or percentage.Two independent-samples t test was used to compare the results of two groups.Results The results of the reaction layer showed that the scores of the multimodal navigation group were significantly higher than those of the traditional teaching group,which were statistically significant (P＜0.05) in the training content,training methods,training facilities and experience after training.The learning results showed that the multimodal navigation group had higher scores in the theoretical examinations,surgical skills and overall scores (P＜0.05).The behavioral results showed that the clinical ability of the multimodal navigation group was more prominent (P＜0.05).The result layer showed that under the guidance of professors,the percentage of residents who can complete the whole surgical operation is higher in multimodal navigation group (50％ vs.20％).Conclusion The application of multimodal navigation technology has a positive effect on the teaching of neurosurgery and specialized training of residents.