0.05).Con- clusion It is a feasible way for infants to fast in solid diet 6 hours and liquid 2 hours before operation in order to re- duce indisposition of infants and meet the need of operation.

Objective To explore the efficacy of low tidal volume ventilation strategy in children with acute hypoxia respiratory failure (AHRF).Methods A total of 79 hospitalized children with AHRF from Aug 2006 to Jul 2011 in PICU of Kunming Children's Hospital were enrolled in this study.The observation group in-cluded 55 children who received low tidal volume ventilation strategy (6-8 ml /kg),while the other 24 children (control group)were given traditional mechanical ventilation (10-12 ml /kg).Oxygenation situations such as PaO2 ,PaCO2 ,PaO2 /FiO2 ,oxygen index and blood gas pH value,organ function,mechanical ventilation complica-tions,hospitalization days and expenses in PICU and the mortality were observed.Results (1)PaO2 ,PaO2 /FiO2 and oxygen index in the observation group were better than those in control group after 24 h mechanical ventilation [(68.51 ±7.53)mmHg(1 mmHg =0.133 kPa)vs.(61.64 ±9.28)mmHg,(162.9 ±21.84)mmHg vs.(152.1 ± 19.03)mmHg,and 18.85 ±4.1 vs.26.53 ±5.2,respectively],and there were significant differences between two groups (P ﹤0.05);and there were also significant differences between two groups in the results after 48 h and 72 h mechanical ventilation.(2)The PaCO2 was (47.48 ±10.52)mmHg after 24 h in observation group,while the PaCO2 in control group was (30.17 ±6.59)mmHg,and it suggested excessive ventilation.(3)Mechanical venti-lation time (7.6 ±3.1)d and hospitalization days (12.8 ±3.6)d were shorter in observation group(P ﹤0.01). Barotrauma (7.3%)and mortality (20.0%)in observation group was significantly lower than those in control group (29.2%,41.6%;P ﹤0.01).The number of damaged organs in observation group was lower than that in control group (P ﹤0.05).Conclusion Low tidal volume ventilation with appropriate positive end expiratory pressure could improve oxygenation,prevent alveolar collapse,reduce complications and mortality for children with AHRF,it should be applied for the treatment of children with AHRF.

Objective To explore the effect of experimental design in the experimental teaching of fundamental nursing. Methods 168 and 199 baccalaureate nursing students were in the control and experimental group respectively, the control group received traditional experimental teaching method, and the experimental group must complete the experimental design before entering the lab. The teaching effect between the two groups were compared. Results The mean operation score of the experimental group was significantly higher than the control group, the proportion of those students who reflected their teaching method could enhance creative ability, problem-solving ability and practical ability was higher in the experimental group, 100% teachers reflected experimental design could improve operation level, strengthen theoretical knowledge, animate teaching atmosphere. Conclusions Experimental design could arouse students' enthusiasm and initiative to study, advocate them to think and ask.

Adult ; Calcinosis ; Heart Aneurysm ; pathology ; Heart Ventricles ; Humans ; Male ; Thrombosis ; pathology

Objective: To understand the relationship between mental health status and vision-related quality of life( VRQL ) of students with moderate and high myopia, and to provide basis for the optimization of VRQL. Methods: Using convenient sampling method, the 8-18 years old students with moderate and high myopia were selected from Sichuan, Chongqing and Zhejiang. The mental health status and VRQL of students with moderate and high myopia were evaluated with Hospital Anxiety and Depression Scale and Quality of Life Scale for Ametropia. The multiple linear regression model was used to analyze the influencing factors for VRQL. Results: A total of 360 questionnaires were sent out and 354 were effectively recovered, with an effective rate of 98.33%. There were 116 ( 32.77% ) boys and 238 ( 67.23% ) girls; the median age was 16.65 years old. There were 211 ( 59.60% ) cases of moderate myopia and 143 (40.40%) cases of high myopia.There were 141 ( 39.83% ) found to be anxious and 176 ( 49.72% ) depressed. The median score of Quality of Life Scale for Ametropia was 64. The results of multiple linear regression analysis showed that sex ( β＇= -0.179 ), diopter ( β＇= 0.208 ), eyesight with glasses ( β＇= -0.229 ) and anxiety ( β＇= 0.439 ) were influencing factors for VRQL. Conclusion The mental health problems of the students with medium and high myopia are prominent; anxiety has a significant impact on the VRQL of the students.

Objective To investigate the changes of lead,zinc,copper,iron and calcium in blood of chronic poisoned infantal mice.(Methods) Forty-eight 21 day-old kunzea mice were randomly divided into 4 groups,each having 12 mice.Distilled water group was as control group and other three lead acetate poisoning groups had a dose of 10,20,40 mg/kg,respectively.The poisoning was carried out by lavage once a day,and consecutively for 46 days.Eyeballs of mice were picked then for blood sampling,and BS trace element analysis grapher was used to determine level of lead,zinc,copper and iron.Level of calcium was measured by Dimentional-RXL auto-biochemistry analysis meter.Results The lead and zinc levels in poisoned mice blood were increased with increasing lead acetate level administration,while zinc level changed inversely with lead acetate level.Significant differences were shown among control group and poisoning groups in terms of lead(P0.05).Conclusion Lead posioning can lead to zinc decreasing and copper(increa)-sing,which suggests that zinc works as a poential antidote of lead poisoning.

Objective To explore the effect of low tidal volume ventilation on the treatment of children with acute respiratory distress syndrome (ARDS).Methods Forty-four hospitalized children with ARDS from Jan 2008 to Dec 2011 at Kunming Children's Hospital were enrolled in this study.The observation group included 24 patients who received the treatment of low tidal volume ventilation (6 ～ 8 ml/kg),while the other 20 patients were in the control group who were given traditional volume ventilation (10 ～ 12 ml/kg).Oxygenation situations and blood gas analysis at 24,48,72 h after ventilation、mechanical ventilation complications,and the mortality in the first 28 days were observed.Results The ratios of PaO2/FiO2 were 104 ±23.6 in observation group and 112 ±34.7 in control group (P ＞0.05).However,after 24,48 and 72 h of ventilation,the ratios of PaO2/FiO2 showed statistical significance (t ≥2.01,P ＜0.05 ; t ≥2.74,P ＜ 0.01).Barotrauma in observation group was significantly lower than that in control group (x2 =6.97,P ＜ 0.01).The mortality (16.7％) of the observation group was significantly lower than that (50％) of the control group (x2 =5.58,P ＜ 0.05).Conclusions Low tidal volume ventilation can reduce complications and improve oxygenation of ARDS patients,and reduce the mortality in ARDS children.The improved rescue technology should be applied for the treatment of children with ARDS.

Objective To establish a method for detection of aminophylline in blood samples of preterm infants . Methods A molecularly imprinted electrochemical sensing film on the glassy carbon electrode surface was prepared by electropolymerization using aminophylline as the template molecule and pyrrole as the functional monomer in 0.2 mol/L HAc-NaAc buffer solution ( pH 4.0).The surface morphology and properties of molecularly imprinted sensing films were characterized by three dimensional laser scanning microscopy , differential pulse voltammetry ( DPV) and electrochemical impedance spectroscopy ( EIS) while the effects of scanning cycle number and incubation time were investigated by square wave voltammetry(SWV) method in 5 mmol/L K3[Fe(CN)6] -0.1 mol/L KCl solution.Results Under optimized experimental conditions ,the SWV peak current difference was linear to the negative logarithm of aminophylline concentration in the range from 1.0 ×10 -7 to 1.0 ×10 -3mol/L with a detection limit (S/N=3) of 0.5 ×10 -8mol/L.The recovery rate was 92.2% -101.4%.Also, the molecularly imprinted electrochemical sensor for aminophylline had good selectivity , stability and reproducibility .Conclusion The molecularly imprinted electrochemical sensor for aminophylline can be used for rapid and accurate detection of clinical blood concentrations of aminophylline molecules in preterm infants in the future .

Objective To analyze the consistency of the SYSMEX UF1000i automatic urinary sediment analyzer,Arkray AX-4030 urine dry chemistry analyzer and optical microscope in detecting urine erythrocyte.Methods The fresh urine specimens from 427 patients were randomly extracted and tested by the SYSMEX UF1000i automatic urinary sediment analyzer,urine dry chemistry analyzer and OLUMPUS Arkray AX-4030 optical microscope.Then the consistency of the results for detecting urine erythrocyte was compared among three kinds of detection method.Results With the microscopic examination as control,the sensitivity and spe-cificity of the SYSMEX UF1000i automatic urinary sediment analyzer for detecting urine erythrocyte were 82.84% and 86.35% re-spectively,which of the Arkray AX-4030 urine dry chemistry analyzer were 89.55% and 83.96% respectively.There was a high consistency between the SYSMEX UF1000i automatic urinary sediment analyzer and the optical microscope for detecting urine e-rythrocyte and the Kappa value was 0.580.There was also a high consistency between the Arkray AX-4030 urine dry chemistry analyzer and the optical microscope for detecting urine erythrocyte and the Kappa value was 0.625,while the consistency between the SYSMEX UF1000i automatic urinary sediment analyzer and the Arkray AX-4030 urine dry chemistry analyzer was weaker and the Kappa value was 0.324.Conclusion With the detection by the SYSMEX UF1000i automatic urinary sediment analyzer and the Arkray AX-4030 urine dry chemistry analyzer as a screening test,it should need to combine with the optical microscopy to conduct recheck for providing the effective and reliable test results quickly and accurately.

Animal Use Alternatives ; instrumentation ; Animals ; Rabbits ; Urinalysis ; instrumentation