The author reviewed some researches on teacher's work related stress in China and abroad. The present researches mainly focus on the sources of stress in teachers' work life. Some practices of work related stress in USA and Chinese special education field were discussed in the article. In the end, the author took a perspective on future research of teacher's work related stress in Chinese special education field.

0.05).Conclusion MSCs could derive to cardiomyocyte-like cells after induction and incubation for 4 weeks in vitro,of which Ca~(2+)/CaMKⅡ is similar to the normal cardiomyocytes cells.

Adult ; Aged ; Aged, 80 and over ; Humans ; Middle Aged ; Pneumoconiosis ; diagnostic imaging ; Radiography, Thoracic ; methods ; Tomography, X-Ray Computed ; X-Ray Film

Objetctive To summarize the associated complications with circulatory support device,and provide reference for chnical practice.Method A total of 8306 consecutive patients who underwent open heart surgery,in Department of Post-operation Intensive Care Unit of the Cardiac Surgery,Anzhen Hospital,Capital Medical University,was retrospectively studied from January 2005 to February 2007.And the clinical data of 246 patients including 63 female and 183 male patients with mean age 56.7±14.2 years supported with various circulatory support devices for perioperative cardiorespiratory function failure in ICU were analyzed.Left ventricular assist device (LVAD) was used in 3 patients by the cannulation of the left alritan and ascending aorta.The extracorporeal membrane oxygenation(ECMO) was established in 48 patients for postoperative cardiorespiratory function failure.The vencarterial bypass was established by cannulation of the right atrium in 41 patients and femoral artery and of venovenons in 2 patients,and of the right atrium and ascending aorta in 5 cases,lntra-aortic balloon pumping(I-ABP)was performed via the femoral artery either percutaneonsly by the Seldinger technique in 195 patients.The cardiac operations included coronary artery bypass grafting (n=170),coronary artery bypass grafting with romoldingof left ventricle (n = 22),coronary artery bypass grafting with valvular operation (n=10),valvular operation (n=27),heart transplantation(n=8),correction of congenital heart defects(n=6),aortic operations(n=2).The duration of circulatory support ranged from 4 to 451 hours.Correlative complications of 3 kinds of circulatory support device were compared and repair of ventricular septal perforation in the wake of acute myocardial infarction (n=1).Results Seventy-eight (31.7%) patients died.Seventy-one(28.9% ) patients devdoped various complications including infection(n=27),renal failure required renal rephcement therapy (n=27),re-exploration for bleeding(n=24),haemolysis(n=6),limb ischemia(n=15),neurological complications(n=6),oxygenator failure(n=7) Conchusions The improvement of management to reduce complications may result in improved outcomes of patients supported with circulatory support devices.

Objective Extracorporeal membrane oxygenation (ECMO) provides a treatment for patients with acute heart-lung failure. However, as an invasive procedure, it associated with high incidence of complications. It is important to a-vert and reduce the complications for improving the success rate in critically ill patients. We investigate the complications associated with ECMO after cardiac surgery and their management. Methods Clinical data from 117 postoperative patients[32 male, mean age (48.7 ± 16.5) years]supported with ECMO in the cardiovascular intensive care unit( ICU) from March 2005 to June 2008 were analyzed retrospectively. The cardiac operations they had undergone included coronary artery bypass grafting (n = 20), coronary artery bypass grafting and remodeling of left ventricle(n =9), coronary artery bypass grafting and valvular operation(n =5), repair of ventricular septal perforation following acute myocardial infarction(n =2), valvular operation( n = 46), heart/lung transplantation (n = 20/1), correction of congenital heart defects ( n = 10), and aortic operations ( n = 4). Venoarterial bypass was established in 110 patients by cannulation of the right atrium and femoral artery, and that of the right atrium and ascending aorta in 5 cases. Left atrial drainage to ECMO was added in 2 cases. Venovenous bypass was established in 2 patients with hypoxemia following cardiac surgery. Heparin was infused for maintaining the activated coagulation time (ACT) at 160 to 200 seconds for centrifugal pump(114 cases),and 200 to 250 seconds for roller pump(3 cases) to avoid thrombotic events until decannulation was achieved. Results The mean ECMO duration was 61 hours (range 3 to 225 hours). 48(41.0% ) patients died, 18 of them died of complications after weaning from circulatory assistant successfully. Complications occurred in 74 (63.2% ) patients included reoperation for hemostasis (n = 24), renal failure requiring renal replacement therapy (n =29), nosocomial infections ( n = 32) , ischemia in the extremities(n = 5), plasma leakage of oxygenators ( n = 29), gastroenteral hemorrhage ( n = 14), hemolysis ( n = 7 ), neurological complications ( n = 4) and centrifugal pump failure (n =1). Conclusion Bleeding is an early complication associated with ECMO support. The risk of nosocomial infection, renal failure and plasma leakage of oxygenators increases with the duration of ECMO support.

OBJECTIVETo explore the clinical application of mandibular-driven simultaneous maxillo-mandihular distraction to correct hemifacial microsomia with rapid prototyping technology.

METHODSThe patient' s skull resin model was manufactured with rapid prototyping technology. The osteotomy was designed on skull resin model. According to the preoperative design, the patients underwent Le Fort I osteotomy and mandibular ramus osteotomy. The internal mandible distractor was embedded onto the osteotomy position. The occlusal titanium pin was implanted. Distraction were carried out by mandibular-driven simultaneous maxillo-mandihular distraction 5 days after operation.

RESULTSThe distraction in five patients was complete as designed. No infection and dysosteogenesis happened. The longest distance of distraction was 28 mm, and the shortest distance was 16 mm. The facial asymmetry deformity was significantly improved at the end of distraction. The ocelusal plane of patients obviously improved.

CONCLUSIONSRapid prototyping technology is helpful to design precisely osteotomy before operation. Mandibular-driven simultaneous maxillo-mandibular distraction can correct hemifacial microsomia. It is worth to clinical application.

Face ; abnormalities ; surgery ; Facial Asymmetry ; congenital ; surgery ; Goldenhar Syndrome ; surgery ; Humans ; Hyperplasia ; surgery ; Mandible ; surgery ; Maxilla ; surgery ; Osteogenesis, Distraction ; methods ; Osteotomy ; methods ; Osteotomy, Le Fort

Objective The aim of this study was to investigate the characteristic of regional cerebral glucose metabolism in patients with Wilson's disease (WD) using 18F-fluorodeoxyglucose (FDG) PET.Methods Thirteen WD patients and 12 normal controls were studied by brain 18F-FDG PET, and the data were analyzed by visual analysis, semi-quantification and statistical parametric mapping (SPM). The radioactivity ratios of lenticular nuclei, caudate, thalamus and cerebellum to cerebral cortex and the ratio of lenticular nuclei to caudate were calculated, respectively. SPSS 11.0 software for statistics was also used to analyze the data. Results In WD patients, radioactivity of lenticular nuclei and candate was significantly decreased compared with controls. The radioactivity ratios of lenticular nuclei and caudate to cerebral cortex in WD patients were both significantly lower than that in normal controls (0.95±0.05 vs 1.26±0.05, t =15, P < 0.05 ; 1.02±0.06 vs 1.17±0.05, t = 8, P < 0.05), and the ratio of lenticular nuclei to caudate in WD patients was significantly higher than that in normal controls (0.93±0.06 vs 1.09±0.06, t =9, P< 0.05). Conclusion As compared with normal controls, patients with WD had significantly decreased glucose utilization in the basal ganglia, especially in the lenticullar nuclei.

Animals ; Animals, Newborn ; Astragalus Plant ; Doxorubicin ; adverse effects ; Drugs, Chinese Herbal ; pharmacology ; Mice ; Mice, Inbred BALB C ; Myocardium ; pathology ; ultrastructure

This study aimed to identify the related substances of phloroglucinol injection by two-dimensional liquid chromatography quadrupole time-of-flight mass spectrometry (2D-LC-Q-TOF/MS). The first-dimensional separation was carried out on an HSS T3 (250 mm × 4.6 mm, 5 μm) column by gradient elution using 1.36 g·L^-1 potassium dihydrogen phosphate buffer solution (pH adjusted to 3.0 with diluted phosphoric acid) and acetonitrile as the mobile phases. The separated components were then trapped in switch valve tube lines respectively and delivered to the second-dimensional desalting gradient elution which was performed with a BDS C18 (100 mm × 4.6 mm, 2.4 μm) column using 0.1% formic acid and methanol as the mobile phases. After rapid desalting, electrospray-ionization quadrupole time-of-flight high resolution mass spectrometry was used for determining the accurate masses and elemental compositions of the parents and their product ions for both phloroglucinol and its related substance. Structures of the related substances were then figured out by mass spectrometry elucidation, organic reaction mechanism analysis, and/or comparison with reference substances. Under the established analytical conditions, phloroglucinol and its related substances were adequately separated, 17 main related substances were detected and identified in the injection and its stressed samples for the first time. The identification results can provide reference for the quality control of phloroglucinol injection.

Objective To explore role of 64-slices spiral CT in differetiation of acute chest pains.Methods Thirty six patients with acute chest pains were performed 64-slices spiral CT chest angiography.Two-dimensional and three-dimensional reconstruction was performed in all patients by means of multiplanar reconstruction(MPR)(coronal,sgittal oblique),curved planar reformation(CPR), maximum intensity projection(MIP),and volume rendering(VR).All images were blindly reading by two experienced radiologist.DSA were performed at the same time in 16 cases.Results The coronary artery branches,pulmonary artery and aortic artery in all patients were showed clearly,The acute myocardial infarction were showed in 10 cases,The pulmonary artery embolism in 14 cases,The aortic dissection in 6 cases respectively,The Coronary embolism in One case ,pneumothorax In One case The constrictive pericarditis in 1 case respectively.Normal findings in 4 cases.Conclusion 64-slices spiral CT is a useful and noninvasive examination in acute chest pain.