Objective To evaluate the effect of group cooperative learning on the experimental teaching of obstetrics and gynecology nursing.Methods We chose 113 undergraduate nursing students,using the traditional self-learning mode in the experimental teaching of cleaning and disinfection of the vulva and the group cooperative learning mode in the experimental teaching of vaginal douching.Their practical manipulations of the nursing skills by the two teaching modes were compared.A self-designed questionnaire was adopted to investigate the student's attitude to the group cooperative learning.Results The examination achievement by the group cooperative learning was better than that by the traditional self-learning,(Z=-4.986,P<0.001).89.4%of the students approved of the group cooperative learning.Conclusion The group cooperative learning may improve the effects of experimental training,contribute to the cooperative spirits of students,and also make full use of the human resources in teaching.

Objective To summarize clinical data of 33 patients with off-pumb coronary artery bypass grafting(OPCABG) procedure and analyze the benefit and curative effects of OPCABG procedure. Methods From February 2002 to June 2005,33 patients with cardiac function in class Ⅱ-Ⅲ (NYHA) and left ventricular ejection fraction(LVEF) was 34%-68%,and all of them underwent coronary artery bypass grafting(CABG) surgery without cardiopulmonary bypass. Results After operation,There was no death, the cardiac function improved in various degree. Preoperative angina disappeared. Conclusion OPCABG procedure is a safe, available, effective method for coronary artery disease.

Aged, 80 and over ; Chronic Disease ; Female ; Humans ; Mucor ; pathogenicity ; Mucormycosis ; microbiology ; pathology ; Orbit ; pathology ; Sinusitis ; microbiology ; pathology

Objective To summarize the experience of surgical treatment of venous drug-induced infective endocarditis(IE). Methods The 17 cases of drug-induced IE were found to have valvular vegetations,16 patients had involvement of tricuspid valve, 1 mitral valve associated with ventrieular septal defect. Preoperative blood culture was positive in 8 patients. The operations included tricuspid valve repair (6 cases),tricuspid valve replacement(8 cases), mitral valve replacement and VSD closure(1 cases). Results All patients were alive and discharges. After follow-up of 6 months to 6 years, 1 case had severd tricuspid alve regurgitation, 1 had haemoptysis because of incorrect anticoagulation. Conclusions This study indicated surgical intervention is effective treatment of venous drug-induced infective endocarditis.

Objective To assess the efficacy and clinical resuhs of thoracic endovascular aortic repair (TEVAR) in Stanford type B aortic dissection,and to explore the therapentic strategy and prevention of complication.Methods Fifty-eight patients with Stanford type B aortic dissection underwent TEVAR were enrolled,and were followed up regularly.Results The technical feasibility and success with deployment proximal to the entry tear was 100.0％(58/58),requiring partial coverage of the left subclavian artery in 20 patients and total coverage in 4 patients,and 2 patients used chimney stents.Hospital mortality was 5.2％ (3/58).Type Ⅰ endoleak was found in 11 patients (19.0％,11/58).In 55 survival patients,48 patients occurred thrombosis in pseudocoele and 2 patients' endoleak disappeared.Seven patients' endoleak appeared blood flow.Forty-eight patients(87.3 ％,48/55) were followed up for 3-68 months.Two patients died,and 2 patients' endoleak disappeared,with total suberization in pseudocoele.Other 5 patients' endoleak relieved,with partial suberization in pseudocoele.One patient had new intimal tear at the distal end of the stent-graft and required a second stent implantation.Conclusion TEVAR is safe and effective for the treatment of Stanford type B aortic dissection.

While the near infrared spectroscopy (NIRS) is used to measure the inhomogeneous samples with diffuse reflection mode, the accuracy and robustness of the calibration model is not quite good for the variation of spectrum scattering and absorption coefficient in those samples.Therefore, an establishment strategy of hybrid model based on homogeneous sample and calibration transfer method was proposed to solve the problem of detection inhomogeneous samples by NIRS.This work was focused on the tobacco leaf samples aspect.Three common calibration transfer methods, including Shenk′s patented algorithm (Shenk′s), piecewise direct standardization (PDS) and calibration transfer based on canonical correlation analysis (CTCCA), were used to construct two hybrid models of tobacco powder mixed with cut tobacco and tobacco powder mixed with tobacco flake samples to predict nicotine content in the samples of cut tobacco and tobacco flake.Experimental results showed that the hybrid model of adding some cut tobacco and tobacco flake samples to the powder model would get preferred prediction ability.Root mean square errors of cut tobacco and tobacco flake samples were reduced by 1.39% and 2.73%, respectively.This showed that the hybrid model was help for the improvement of the predicted results and the robustness of model.Moreover, CTCCA got the optimal performance between these three calibration transfer methods.Therefore, the scheme of building a hybrid model by NIRS homogeneous model and calibration transfer method to determinate the heterogeneous samples is feasible, which can accelerate the development of on-line near infrared spectroscopy technology and will provide reference for the share of near infrared spectral model.

Objective To compare the blood-saving effect when acute hypervolemic hemodilution (AHH) was performed with hydroxyethyl starch (HES) 130/0.4 dissolved in electrolyte injection (HES-E) and HES 130/0.4 in sodium chloride injection (HES-NaCl).Methods Thirty patients of both sexes,aged 18-60 yr,of American Society of Anesthesiologists physical status Ⅰ or Ⅱ,with body mass index of 18-25 kg/m2,hemoglobin (Hb) ＞100 g/L,hematocrit (Hct) ＞ 35％,scheduled for elective abdominal operations under general anesthesia,were randomly divided into HES-E group and HES-NaCl group using a random number table,with 15 patients in each group.AHH was performed after induction of anesthesia.In HES-E and HES-NaCl groups,HES-E and HES-NaCl 15 ml/kg were intravenously infused over 30 min,respectively,and the infusion was conpleted before skin incision.Immediately after onset of AHH (T1),at 2 h after the end of AHH (T2),and at the end of operation (T3),arterial blood samples were collected for blood gas analysis and blood routine test,and pH value,base excess,HCO3-,K+,Na+,Cl-,Ca2+,Hb and Hct were recorded.Venous blood samples were collected at T1 and T2 for measurement of blood coagulation parameters including prothrombin time,activated partial thromboplastin time and fibrinogen and thrombelastography parameters.The volume of liquid intake and output and requirement for allogeneic blood transfusion were recorded,and the blood volume expansion rate was calculated.Results Compared with group HES-NaCl,no significant changes were found in the total volume of liquid infused,requirement for allogeneic blood transfusion,blood volume expansion rate,blood coagulation parameters at each time point,Hb and Hct (P＞0.05),pH value,base excess,HCO3 and K+ were significantly increased,and Na+ and Cl-were significantly decreased in group HES-E (P＜0.01).Conclusion There is no significant difference in the blood-saving effect between AHH with HES-E and HES-NaCl clinically,but HES-E can maintain homeostasis better.

Objective To investigate the regional homogeneity (ReHo) changes of primary insomnia (PI) with cognitive impairment using resting?state fMRI. Methods Twenty-one patients with primary insomnia and cognitive impairment and 25 healthy volunteers matched with age, gender and education level were collected from Southwest Hospital of China from November 2014 to June 2015. Pittsburgh sleep quality index (PSQI), Montreal Cognitive Assessment (MoCA), Mini-mental State Examination (MMSE), Activity of Daily Living Scale (ADL), Hamilton depression scale (HAMD), and Hamilton Anxiety Scale (HAMA) were conducted to evaluate the sleep and cognitive conditions of all subjects. Independent sample t?test was performed to evaluate the significant difference of neuropsychology scores of two groups. ReHo of rs?fMRI were evaluated and compared between two groups using independent sample T?test, meanwhile, the partial correlation analysis was conducted in ReHo values of different brain regions and neuropsychology scores (age, gender and education level were regarded as covariates). Results Compared with normal controls, patients with primary insomnia and cognitive impairment showed significant higher PSQI score and lower MoCA and MMSE scores(P<0.05). The patient group also showed significant increased ReHo in the left medial temporal gyrus(54 voxels, t=3.14), left inferior temporal gyrus(76 voxels, t=4.80), right inferior temporal gyrus(84 voxels, t=4.30) and left parahippocampal gyrus(301 voxels, t=4.44) (P<0.05) and decreased ReHo in the left superior temporal lobe(79 voxels, t=-3.38), right fusiform gyrus(50 voxels, t=-3.17), right superior temporal gyrus(283 voxels, t=-5.34), right inferior frontal gyrus(56 voxels, t=-3.98), right anterior cingulate(233 voxels, t=-3.91), left parietal lobe angular gyrus(67 voxels, t=-3.27) and superior parietal lobule(65 voxels, t=-3.45) (P<0.05). The partial correlation analysis showed positive correlations between the ReHo values and PSQI scores of the left parahippocampal gyrus (R=0.771,P<0.01), negative correlations between the ReHo values and PSQI scores of the right anterior cingulate gyrus (R=-0.649,P<0.01) and positive correlations between the ReHo values and MoCA scores of the right anterior cingulate gyrus(R=0.555,P<0.05). Conclusions Patients with primary insomnia and cognitive impairment have ReHo alterations in various brain regions. The decreasing ReHo in the right anterior cingulate gyrus can reflect the level of sleep disorder and cognitive impairment, and increasing ReHo in the left parahippocampal gyrus can reflect the compensation of sleep disorders of PI.

Accidents, Occupational ; Bromine ; poisoning ; Humans ; Hydrobromic Acid ; poisoning

Objective To establish the HPLC fingerprint of Disporum cantoniense. Methods HPLC analysis was performed on Agilent Zorbax SB-C18 chromatographic column ( 250 mm × 4. 6 mm, 5 μm) with the mobile phase consisting of methanol-0.05% phosphoric acid in gradient mode.The flow rate was 1.0 mL·min-1, the detection wavelength was 256 nm and the column temperature was 30 ℃. Results The HPLC fingerprint of 15 batches of Disporum cantoniense was established. Thirteen common peaks in the fingerprint were demarcated, four of which were identified by reference substances. Chemical pattern recognition of fingerprint was performed by hierarchical cluster analysis and principal component analysis. Conclusion The method is simple, accurate and has a good repeatability, and can be used for quality control of Disporum cantoniense.