Objective To analyse 35 cases with failure and malfunction hemodialysis access managed by interventional radiology. Methods 35 cases with failure and malfunction hemodialysis access were examined by angiography and treated by interventional management subseqently. 26 cases of thrombosis occlusilon were treated with thrombolytic therapy and 15 cases of malfunctioning hemodialysis access were done with PTA. Results The initial angiogram showed 9 patients with simple stenosis while 26 patients with thrombosis occlusion, with concurrent stenosis in 13 patients. The rate of immediate recanalization of thrombolysis was 88.4% (23/26). The PTA was successful in 12 cases, 7 of the 13 cases concurrent with stenosis and 8 cases with simple stenosis while the other 3 cases of the 15 cases confronted failure. Follow up was made in 6 patients concurrent with stenosis without further management and 3 patients failure to conduct PTA after thrombolytic therapy. Recanalization occurred in 7 cases within 1 month and then did in all the cases in 3 month. Conclusions Angiography and subsequent interventional management play a critical role in the diagnosis and treatment of failure and malfunction hemodialysis access.

Objective To investigate the multiple factors correlated to femoral head necrosis in patients over 45 years old with femoral neck fractures after closed reduction and cannulated screws fixation.Methods Three hundred patients with femoral neck fracture were admitted from May 1999 to May 2004 and treated by closed reduction and internal fixation with cannulated screws.We analyzed the multiple factors:age,gender,Garden classification,follow-up time,procedure delay,quality of reduction,time of full-weight-loading,fixation removal, and preoperative traction.Multiple correlation factors were analyzed by SPSS10.0 statistic system.Results Complete case records were documented in 99 cases who were followed up for an average of 24.5 months(range,8 to 60 months).Femoral head necrosis occurred in 15 cases(15.2%).Time of femoral head necrosis was 8 to 50 months after operation.The combination of quality of reduction,preoperative traction,age,and age?fixation re- moval was found to have the most significant influence on femoral head necrosis after internal fixation for femoral neck fractures.Conclusions Good reduction is the most important factor correlated to the outcome of a femoral neck fracture.Age is linked to the risk of necrosis but it is relatively insignificant.Preoperative traction in wrong positions can increase the incidence of necrosis.Garden classification is important in predicting femoral head necrosis and is associated with quality of reduction,but it is not a risk one in the combination of multiple correlation factors that lead to the necrosis.

OBJECTIVETo investigate the anxiety disorders and influence factors that occur in adolescent patients with cleft lip and palate and to provide theoretical foundation for mental intervention.

METHODSA total of 120 adolescent patients with cleft lip and palate were investigated using a general information questionnaire, the self-rating anxiety scale, and the social support rating scale (SSRS). The influence factors of anxiety disorders were analyzed.

RESULTSThe effective questionnaires were 119. The occurrence rate of anxiety disorder in adolescent patients was 49.6% (59/119), and the occurrence rates of mild, moderate, and severe anxieties were 41.2% (49/119), 7.6% (9/119), and 0.8% (1/119), respectively. The gender, residential area, disease category, family status (one child or no children), and incidence rate of anxiety disorder in patients were statistically different (P<0.05). The SSRS scores of patients with anxiety disorder were lower than those of patients without anxiety disorder (P<0.05). Multiple regression analysis showed that gender and social support were predictive factors of the occurrence of anxiety disorder (R=0.318).

CONCLUSIONA high anxiety disorder rate occurred in adolescent patients with cleft lip and palate. dender and social support were important influencing factors for anxiety disorder. In the after-mental intervention, considerable attention should be given to the anxiety disorders of patients and improve their mental health.

Adolescent ; Anxiety ; Anxiety Disorders ; epidemiology ; Child ; Cleft Lip ; epidemiology ; psychology ; Cleft Palate ; epidemiology ; psychology ; Humans ; Mental Health ; Parents ; Social Support ; Surveys and Questionnaires

·AIM: To evaluate the efficacy and safety of intravitreal triamcinolone acetonide(TA) as treatment for macular edema associated with retinal vein occlusion(RVO).·METHODS: The study group consisting 30 patients (30 eyes) with RVO combined with macular edema received intravitreal 4mg TA. Changes in best-corrected visual acuity (BCVA), intraocular pressure(IOP), examination with slit-lamp microscope, fluorescein angiography and optical coherence tomography(OCT) were observed during the follow-up. Statistical analysis was conducted with SPSS 12.0 software.·RESULTS: The visual acuity(VA) of all patients was significantly improved and the central macular thickness (CMT) was significantly relieved. There was no correlation between course, age, CMT before injection and the type of RVO. There was positive correlation between visual acuity before injection and after injection.·CONCLUSION: Intravitreal injection of TA is an easy-operated and safe therapy. After injection, macular edema can be rapidly relieved. VA at baseline is the predictor for the prognosis of VA. Some patients experience recurrence of macular edema between 3 to 6 months after injection.

AIM: To discuss the effect of wearing customized curvature soft corneal contact lens to dry eye degree of flight attendants.
METHODS:Eighty cases (160 eyes) of flight attendants from China Southern were divided into two groups:control group 40 cases ( 80 eyes ) wearing ready-made Bausch soft corneal contact lens ( curvature 8. 4 ); the experiment group 40 cases ( 80 eyes ) , wearing Bausch soft corneal contact lens with customized curvature. Tear break-up time ( BUT ) , Schirmer Ⅰ test ( SⅠt ) and fluorescein ( FL ) staining were as dry eye evaluation index. The results was statistically analyzed.
RESULTS: BUT, SⅠt average shortening value of the experimental group were less than that of the control group, there was statistical significance (P<0. 01). FL staining positive increase, the number of experimental group was fewer than that of control group, with statistical significance (P<0. 05).
CONCLUSION: Wearing customized curvature soft corneal contact lens can prevent the flight dry eye more effectively than fixed curvature product.

OBJECTIVE: To analyze the case characteristics of poisoning by exhaust gas of the imperfect combustion of natural gas and provide references for forensic identification and prevention of such accidents. METHODS: Twenty-two cases of poisoning by exhaust gas of the imperfect combustion of natural gas in Minhang District during 2004 to 2013 were collected. Some aspects such as general conditions of deaths, incidence time, weather, field investigation, and autopsy were retrospectively analyzed. RESULTS: In the 22 cases, there were 15 males and 16 females. The age range was between 2 and 82 years old. The major occurring time was in January or February (8 cases in each) and the cases almost occurred in small area room (21 cases). There was wide crack next to the exhaust port when the gas water heater was been used in all cases. CONCLUSION There are more prone to occurrence of exhaust gas poisoning of imperfect combustion of natural gas in small area room with a ventilation window near the exhaust port of gas water heated. It shows that the scene of combustion exhaust gas poisoning should be more concerned in the cold season.
Accident Prevention ; Adolescent ; Adult ; Aged ; Aged, 80 and over ; Autopsy ; Carbon Monoxide Poisoning/prevention & control* ; Child ; Child, Preschool ; Death ; Female ; Humans ; Male ; Middle Aged ; Natural Gas/poisoning* ; Retrospective Studies ; Young Adult

Objective To investigate the effeets of ulimstatin on expression of intestinal defemin-5 mRNAin the rat model of sepsis.Method The experiment was performed in pharmaco-laboratory of medical college,Sun Yat-Sen University.sixty Sprague-Dawley rals were randomly divided into control,sepsis,pretreated andtreated groups(n=15).Semis was induced in the mts of latter three groups by cecal lifo.and puncture(CLP).The rats of pretreated group received 25 000 U/kg ulinastatin 2 hours before operation and the rats of uli-nastatin treated groups received 50 000 U/kg ulinastatin 2 hours after operation.Some pieces of ileum mucosa weretaken 12 h after CLP.Tge pathological changes were observed and the expression of RD-5 mRNA was detectedwith RT-PCR.All data were managed by SPSS 13.0 software and arIaIyzed by using One-way ANOVA and LSD-ttest.Results The expression of RD-5 mRNA in the rats of sepsis group significantly decreased compared to col-trol(P<0.05).The expression of RD-5 mRNA of pretreated and treated groups sigificantly inereased comparedto sepsis group(P<0.05);pretreated groups had more increased expression of,RD-5 mRNA compared to treatedgroups(P<0.05).Conclusions The expression of intestinal RD-5 mRNA significantly decreases in sepsis,which could be improved by the treatment of ulinadtatin leading to intestinal mucosal protection of the siqnifleant.The pretreatment may be more effective than the theTapeatic treatment in the rat model of sepsis.

BACKGROUND: Microarc oxidation (MAO) is a break-through anodyzing technology for forming oxide films on valve metal.Use of this technology allows thick, porous oxide layers to be formed on the surface of pure titanium. Few biocompatibility reports using this treatment have been found.OBJECTIVE: The blood compatibility of a novel surface modified titanium substrata biomaterial using MAO was investigated.DESIGN: Positive and negative control, contrast observation and gold standard control.SETTING: Wuhan Union Hospital.MATERIALS: A healthy male adult New-Zealand rabbit, weighing 2.5 kg and ordinary grade, was selected in this study.Pure titanium sticks TA1 (Baoji Yingnaite Non-ferrous Metal Co., Ltd.), MAO-Ti and 20 g/L potassium oxalate were also selected in this study.METHODS: The study was carried out in the Laboratory of General Surgery, Union Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology in May 2006. ① Materials: Titanium substrate of 10 mm in diameter and 2 mm in depth was put in an electrolyte which was quipped with deionized water, dibasic sodium phosphate, and ethanoic acid calcium for MAO treatment for 10 minutes. ② Groups: Three groups were analysed: test group, negative control group and positive control group. Test group: MAO-Ti was dipped in 10 mL saline; Positive control group: 10 mL deionized water was added in each tube; Negative control group: 10 mL saline was added in each tube. ③ Operation: Fresh whole blood was collected from rabbit and then mixed with the liquids in the three groups respectively after anti-coagulation. In addition, UV-Visible Spectrophotometer was used to evaluate the hemolytic ratio. A hemolytic ratio below or equal to 5% indicated that this novel material fitted the requirements. On the contrary, a hemolytic ratio higher than 5% proofed the existence of a hemolyzation.MAIN OUTCOME MEASURES: The hemolytic ratio of materials in three groups.RESULTS: The hemolytic ratio of the test group was 0.90%. The result indicated that this new material had no haemolysis effect.CONCLUSION: The material does not resolve red blood cells and is coincident with the international and governmental standard.

Objective To evaluate the role of Na+-K+-2Cl-cotransporter isoform 1 (NKCC1) in neurons in sevoflurane-induced epileptiform electroencephalogram (EEG) activity in the cortex of neonatal rats.Methods Twenty-four neonatal Sprague-Dawley rats,aged 4-6 days,weighing 8-15 g,were randomly divided into 3 groups (n =8 each) using a random number table:control group (group C),sevoflurane group (group S),and NKCC1 inhibitor bumetanide + sevoflurane group (group B).After electrodes were placed correctly,EEG was monitored continuously.At 30 min of monitoring,normal saline 3 μl/g was injected intraperitoneally in D and S groups,and bumetanide 10 μg/g was injected intraperitoneally in group B.At 60 min after the end of intraperitoneal administration,anesthesia was induced with inhalation of 6％ sevoflurane for 3 min and maintained with inhalation of 2.1％ sevoflurane for 1 h in group S and group B.The total duration of seizures,the duration of a single episode,the number of episodes of electroencephalographic seizures,and the amplitude and frequency of spike-and-wave were recorded.Results Seizures were not detected in group C,and no spike-and-wave was found in group B.Compared with group C,the incidence of seizures in S and B groups (75％ and 25％,respectively) and incidence of spike-and-wave in group S (100％) were significantly increased (P＜0.05).Compared with group S,the incidence of seizures and spike-and-wave was significantly decreased,the total duration of seizures,and duration of a single episode were significantly shortened,and the number of episodes of electroencephalographic seizures was significantly decreased in group B (P＜0.05).Conclusion NKCC1 in neurons may be involved in the formation of sevoflurane-induced epileptiform EEG activity in the cortex of neonatal rats.

Objective To examine the effect of berberine hydrochloride ( BER ) on the pharmacokinetic profiles of midazolam,a substrate of CYP3A,in rats. Methods The rats were intragastrically given different doses of BER (50,100, 200 mg?kg-1) or ketoconazole (75 mg?kg-1) for 10 days.Single-pass duodenum perfusion of 20 mg?kg-1 MDZ was performed and the inguinal artery was cannulated for blood sampling.Plasma concentrations of MDZ and 1'-OH-MDZ were analyzed by high performance liquid chromatography ( HPLC) with the CYP3A inhibitor ketoconazole serving as positive control. Results BER (50,100,200 mg?kg-1) and ketoconazole (75 mg?kg-1) could significantly increase the AUC(0-t),AUMC(0-t)and Cmax of MDZ in a dose-dependent manner ( P<0.05) ,and reduce the clearance rate ( CLz ) of MDA and its apparent volume of distribution in the body ( Vz ) ( P<0. 05). But they failed to dramatically affect the half-life ( t1/2z ) and the peak time ( tmax ) of MDZ. Additionally,BER ( 100,200 mg?kg-1 ) and ketoconazole ( 75 mg?kg-1 ) could significantly dose-dependently decrease the AUC(0-t),AUMC(0-t)and Cmaxof 1'-OH-MDZ,and profoundly increase the CLz,tmax and Vz of 1'-OH-MDZ (P<0.05),but they had no remarkable influences on the t1/2z.The ratio of AUC(1'-OH-MDZ)/AUC(MDZ) was decreased with the increase of BER concentration. Conclusion BER can inhibit the in vivo metabolism of MDZ in a dose-dependant manner, which is associated with the suppression of the activity of CYP3A.