Occupational Health

Spine surgery is a branch of science bridging neurosurgery and orthopedics.In our country,spinal neurosurgery started relatively late and its development is unbalanced regionally despite rapid development in recent years.In this paper, we make an objective evaluation of the development and present situation of spinal neurosurgery in China and its existing problems.We also introduce some theoretical knowledge about stability of the spine as well as some methods commonly used in clinic to protect and reconstruct spinal stability. We urge neurosurgeons to pay more attention to the learning of and research on spinal stability and biomechanics,and perform spinal surgery vigorously and assuredly.

To investigate the difference of CO_2 transport during continuous flow apneic ventilation (CFAV) between with 100% 0_2 and with 60%N_2O-40% O_2. Method: Twelve dogs were randomly divided into equally group N_2O and group O_2. A catheter was introduced into each main-stem bronchus using a fiberoptic bronchoscope and endotraeheal tube positioned in place for CFAV. With 60%N_2O-40% O_2 in group N_2O and 100% O_2 in group O_2 lungs were ventilated at flow rate of 1L?kg~(-1)?min~(-1) Blood gas analysis, HR, MAP and SaO_2 were recorded every 30min during period of 180min. Result: In group O_2, PaCO_2 increased from 4.88?0.63kPa to 8.73?1.11kPa. In Group N_2O, PaCO_2 were increased gradually from 5.51?0.94kPa to 6.18?0.67kPa. There was significant difference in PaCO_2 between the two groups (P

Objective: To study whether there is the apoptosis of neural cells and the expression of Bcl-2 protein in intracerebral hemorrhage (ICH) in model of rats, for the further understanding the mechanism of the delayed damage of the neural cells around the hematoma after ICH. Methods: Fifty SD rats were randomly divided into 5 groups, ten in each. With the Group A as the control, the rest 40 were used to set up intracerebral hemorrhage model. The brains were taken out at 12th, 24th, 48th and 72th hours, respectively. Apoptosis cells were detected with terminal deoxynucleotidyl transferase mediated dUTP nick end labeling (TUNEL), and the expression of Bcl-2 protein was detected with immunochemical stainging methed (SP). Results: In the control group, no apoptosis cells and Bcl-2 protein were detected. In rest groups, the apoptosis cells and Bcl-2 protein were expressed in different degree. Apoptosis rates verified and corresponded with the time after ICH, with the peak at 48th-72th hour after hemorrhage. The peak rate of apoptosis cells was (24.50±2.69)% and Bcl-2 protein expression was (20.76±1.97)%. There was significant difference between the experimental groups and control (P<0.05) , and no linear relationship between the apoptosis rate and the expression of Bcl-2 protein. Conclusion: Apoptosis may be an important factor in the secondary trauma of ICH. There is a time leg after hemorrhage. All this is instructive to clinical treatment in time. Bcl-2 protein keeps increasing in a certain time after hemorrhage, but not synchronize with the cell apoptosis. This indicates that bcl-2 has the effect to reduce the apoptosis of neural cells.

Adolescent ; Adult ; Amnion ; transplantation ; Blood Transfusion, Autologous ; Eye Burns ; therapy ; Humans ; Male ; Middle Aged ; Occupational Injuries ; therapy ; Young Adult

Otjective To study whether there is the apoptosis of neural cells and the expressionof Bcl-2 protein in intracerebral hemorrhage (ICH) in model of rats, for the further understanding the mechanism of the delayed damage of the neural cells around the hematoma after ICH. Methods Fifty SD rats were randomly divided into 5 groups, ten in each. With the Group A as the control, the rest 40 were used to set up intracerebral hemorrhage model. The brains were taken out at 12th, 24th, 48th and 72th hours, respectively. Apoptosis cells were detected with terminal deoxynucleotidyl transferase mediated dUTP nick end labeling (TUNEL), and the expression of Bcl-2 protein was detected with immunochemical stainging methed (SP). Results In the control group, no apoptosis cells and Bcl-2protein were detected. In rest groups, the apoptosis cells and Bcl-2 protein were expressed in different degree.Apoptosis rates verified and corresponded with the time after ICH, with the peak at 48th -72th hour after hemorrhage.The peak rate of apoptosis cells was (24. 50± 2.69)% and Bcl-2 protein expression was (20. 76 ± 1.97)% . There was significant difference between the experimental groups and control (P＜0.05), and no linear relationship between the apoptosis rate and the expression of Bcl-2 protein. Conclusion Apoptosis may be an important factor in the secondary trauma of ICH. There is a time leg after hemorrhage. All this is instructive to clinical treatment in time. Bcl-2 protein keeps increasing in a certain time after hemorrhage, but not synchronize with the cell apoptosis. This indicates that bcl-2 has the effect to reduce the apoptosis of neural cells.

Objective To analyze the imaging features and clinical significance of solitary costal hot spots in patient with lung cancer on SPECT/CT fusion imaging and the value of low-dose CT for diagnosis.Methods SPECT/CT scan was performed on 68 patients with lung cancer and costal single hot spots using whole body bone imaging.The sites of lesions were classified into four types:junction between costal cartilage and rib,frontal rib,lateral rib,posterior rib.The shapes of lesions were classified into two forms:punctiform and strip shapes,and were analyzed and classified.The differences of the diagnosis of whole body bone imaging and SPECT/CT scan were analyzed.Results Punctiform spots were mainly due to costal fractures(36/68,52.94％).The majority of spots in strip shape were costal metastases (21/23,91.30％).The lesions of junction between costal cartilage and rib were punctiform shape and benign.Hot spots in posterior ribs were mainly costal metastases (18/22,81.82％).Sensitivity of diagnosis of the metastatic bone tumor with whole body bone imaging and SPECT/CT in single hot spot of spine and rib was 69.23％ (18/26) and 92.31％(24/26),specificity 59.52％(25/42) and 85.71％(36/42),accuracy 63.24％(43/68) and 88.24％ (60/68),positive predictive value 51.43％ (18/35) and 80.00％ (24/30),negative predictive value 75.76％ (25/33) and 94.74％ (36/38).SPECT/CT scan had differences with whole body bone imaging in sensitivity (P ＜ 0.05),SPECT/CT scan had significant differences with whole body bone imaging in coincidence and specificity (P ＜ 0.01).Conclusions Useful imaging features can be obtained from SPECT/CT fusion imaging with single costal hot spots,being helpful to differential diagnosis of benign and malignant lesions.SPECT/CT fusion imaging may improve the accuracy to diagnose the rib disease.

Biliary tract carcinoma is a rare cancer with poor prognosis.Although having limited clinical benefit,chemotherapy represents the cornerstone of management for patients with inoperable and postoperative recurrence of cholangiocarcinoma.Substantial breakthroughs in the study of chemotherapy for treatment in advanced cholangiocarcinoma are rare due to the heterogeneity of cholangiocarcinoma,the use of various chemotherapeutic agents and the small size of existing patient cohorts.Currently,no standard chemotherapeutic strategies exist for cholangiocarcinoma,though some combinatorial stratagies,such as gemcitabine plus cisplatin,have proven to prolong survival significantly.Still,further studies are needed to improve the treatment of patients with biliary tract cancer.

Objective To compare the clinical efficacy of intraspinal tumor resection under quadrant channel and hemilaminectomy surgery.Methods We retrospectively studied 33 patients with intraspinal tumor with the lesion length of less than 5 cm hospitalized in our hospital from July 2013 to July 201 5.Of the 33 patients,1 6 patients received intraspinal tumor resection under quadrant channel and 1 7 patients received intraspinal tumor resection under hemilaminectomy surgery.We compared various indicators in the two groups,including the length of surgical incision,surgical operation time,bleeding volume during operation,time for the first ground activity after surgery,length of hospital stay (LOS)after surgery,visual pain simulation (VAS)score 1 week after surgery, and JOA score excellent and good rates.Results The patients who received quadrant channel intraspinal tumor resection outperformed those who received hemilaminectomy surgery regarding the length of surgical incision, bleeding volume during operation,time for the first ground activity after surgery,LOS after surgery,and VAS score 1 week after surgery (P <0.05 ).Conclusion Intraspinal tumor resection under quadrant channel is a safe and effective therapy because of small trauma,less bleeding,quick recovery and curative effect.

Purpose:In order to determine the indications for adjuvant treatment in node-negative breast cancer.Methods:We analyzed 233 cases of node-negative breast cancer. Results:The recurrence ratio of node-negative breast cancer was 7.3 percent. The prognosis was connected with age,menstrual history , position, diameter of tumor and pathology. Among invasive lobule cancer, GradeⅢ and lymphocyte-negative cancer, the recurrence ratio was 28 percent in patients with three factors, 16 percent in patient with two factors, 7 percent in patients with one factor.Conclusions:Node-negative breast cancer cases with high recurrence factors need adjuvant treatment.