OBJECTIVE In order to find the way to reduce nosocomial pneumonia through preventing delivery of microbio-aerosol.we investigate whether oxygen humidification process generate and deliver aerosol to the end of oxygen tube,and the difference between two types of humidifier.METHODS Two types of humidifier were used.One was unique bionic humidifier through surface of humidification material,the other was conventional bubble humidifier.The amount of aerosol was counted by laser particle counter at the end of oxygen cannula.Different solute of ferric chloride and soluble starch in two humidification materials were used to testify the generation and transmission of aerosol during oxygen therapy.RESULTS Bubble humidifier produced large amount of aerosol of 0.3,0.5,1.0,3.0,5.0 ?m at 31089.9、28488.6、2873.9、197、1.1particle/cubic meter respectively.Most of the aerosol were between 0.3 and 3 microns in diameter.While bionic humidifier produced small amount of aerosol of 0.3,0.5,1 ?m at 95.3,39.8,2.0 particle/cubic meter respectively,there were no aerosol particle larger than 3?m.The difference of 0.3,0.5,1.0,3.0,5.0?m aerosol between bubble and bionic humidifier was significant(P

As the indexes of reflecting whole blood coagulation and fibrinolytic capacity, thrombelas-tography are being increasingly used in the fields of guiding intraoperative blood transfusion, hypercoagulable state monitoring and correction, treatment of trauma patients, and clotting mechanism research. This article reviews the clinical application value and limitation of thrombelastography in patients with ischemic cerebrovascular disease.

Objective: To compare the therapeutic effects between the needling method by identification of deficient and excessive patterns and the needling method by routine meridian differentiation in the treatment of soft tissue injuries. Methods: 380 cases of the patients with soft tissue injuries were randomly divided into pattern identification group (200 cases, with the needling method by identification of deficient and excessive patterns) and meridian identification group (180cases, with the needling method by routine meridian differentiation), to observe and compare the therapeutic effects in the two groups. Results: The curative effect was 86% in the pattern identification group and 31.11% in the meridian identification group, with a significant difference (P＜ 0.01). In comparison with the total average treatment times in the cured and improved cases,the pattern identification group was 8.8 days and the meridian identification group was 15.6 days,with a remarkable significant difference (P＜ 0.01). The pattern identification group was better than the meridian identification group. Conclusion: In the treatment of soft tissue injuries, the needling method by identification of deficient and excessive patterns was better than the needling method by routine meridian differentiation.

[Objective]To measure the change of anatomic configuration of proximal tibial after high tibial osteotomy and probe its clinical consequences.[Method]From 2001 to 2005,there were 59 knees of 35 patients with medial unicompartmental osteoarthritis treated with closing-wedge high tibial osteotomy.Anatomic configuration of proximal tibia were measured both pre and postoperatively on radiographs.They included posterior slope angle of proximal tibia,tibial angle,lateral shift of articular surface of proximal tibial and level of the joint line.The alteration of the above features was calculated and analyzed statistically with paired t test.[Result]The mean tibial posterior slope angle were(8.9??2.6?)preoperatively and(5.0??2.3?)postoperatively.The tibial posterior slope angle was averagely decreased about(3.9??1.7?).Tibial angle were(99.1??4.3?)and(91.1??3.8?)before and after high tibial osteotomy respectively.Lateral shift of articular surface of proximal tibial were(46.2?3.6)% and(53.1?3.9)% in pre and postopratively.Level of joint line was(41.2?3.6)mm and(38.0?3.2)mm in pre and postopratively.Statistical analysis indicated that there was significant difference of posterior slope angle or tibial angle or lateral shift of articular surface of proximal tibial or level of joint line between pre and post operative(P

Objective To investigate the remote effects of epidermal growth factor(EGF)and early removal of eschar combined with skin grafting for the treatment of skin lesion produced by mustard gas.Methods A 3-year follow-up survey was condueted in 39 patients with skin lesion produced by mustard gas.The condition of healing was observed and evaluated.Results Good epithelial healing with pigmentation was observed in all the surveyed patients,and only in a few of them showed local recurrence of wound.Itching and paresthesia in the wounded parts were the main complaints.The sequelae remained unpredictable.Conclusion The early use of epidermal growth factor and early removal of eschar followed by skin grafting for the treatment of skin lesion produced by mustard gas may achieve satisfactory therapeutic effect.

The phenotype frequencies of Gc and Tf in blood and bloodstains from the Hannationality in Bejing was studied using the agarose gel simultaneous electrophresisfollowed by the immunofixation method.Their gene frequencies were calculated.

To observe the therapeutic efficacy of acupuncture plus three-step analgesic ladder for cancer pain relief.Method:Thirty-siX cases with cancer pain were randomized into a treatment group and a control group.Twenty-four cases in the treatment group were treated with acupuncture plus three-step analgesic ladder approach and 12 cases in the control group were treated with three-step analgesic ladder approach alone.Result:The total effective rate and marked effect rate of the treatment group were 95.8%and 54.2% respectively,while those of the control group were 83.3%and 25.0%respectively,indicating a significant statistical difference (P＜0.05) in terms of the therapeutic efficacy of the two groups and acupuncture plus three-step analgesic ladder approach can further improve the therapeutic efficacy.

Objective To study the plasma antioxidant vitamin status in patients receiving enteral nutrition(EN) or parenteral nutrition(PN) after upper gastrointestinal surgery.Methods One hundred and twenty patients who underwent upper gastrointestinal cancer surgery were randomized into EN and PN group.The plasma vitamin A,vitamin E and ?-carotene levels pre-and post-operation and one week after clinical nutrition supplement were studied.Results Vitamin A and ?-carotene levels decreased significantly after surgery(P=0.03 and P=0.01,respectively).Vitamin E decreased 10 weeks after the nutrition,and it was significantly lower in the EN group than in the PN group(P0.05).Conclusions A decrease of antioxidant vitamins is induced by surgery and vitamin E is recommended to be given in nutrition supplement patients,especially in the patients receiving EN.

Electroencephalogram (EEG) is the primary tool in investigation of the brain science. It is necessary to carry out a deepgoing study into the characteristics and information hidden in EEGs to meet the needs of the clinical research. In this paper, we present a wavelet-nonlinear dynamic methodology for analysis of nonlinear characteristic of EEGs and delta, theta, alpha, and beta sub-bands. We therefore studied the effectiveness of correlation dimension (CD), largest Lyapunov exponen, and approximate entropy (ApEn) in differentiation between the interictal EEG and ictal EEG based on statistical significance of the differences. The results showed that the nonlinear dynamic char acteristic of EEG and EEG subbands could be used as effective identification statistics in detecting seizures.
Brain ; physiopathology ; Electroencephalography ; Entropy ; Epilepsy ; physiopathology ; Humans ; Nonlinear Dynamics ; Seizures

Objective To investigate the clinical values of Gemstone Spectral Imaging coronary angiography with analysis of the relationship between plaque character and angina pectoris types.Methods Two hundred cases of hospitalized patients were collected from January 2015 to December 2016 in the Department of Cardiovascular Disease,Chenzhou City First People's Hospital,who were diagnosed as coronary heart disease.According to the clinical data,stable angina pectoris (SA) and unstable angina pectoris (UA),coronary CT scan was performed for each patient to evaluate the relationship between the nature of atherosclerotic plaques and the classification of angina pectoris.SPSS 19.0 software was used for statistical analysis.Results By analyzing the correlation between SA and UA,SA calcification plaque was accounted for 63.2％,soft plaque 17.4％,mixed plaque 19.4％;UA calcification plaque was accounted for 37.5％;Soft plaque was accounted for 42.3％;and mixed plate was accounted for 20.2％.The difference was statistically significant (P ＜ 0.05).In the SA group,all of the stenotic lesions were mainly calcified plaques.There was no significant difference in the degree of severe stenosis between the different plaques in the SA group (P ＞ 0.05).In UA group,soft plaques were the main lesion of mild and moderate stenosis of coronary artery,and calcified plaques were the main stenosis in severe stenosis.There were significant differences in the degree of coronary artery stenosis between different plaques in UA group (P ＜ O.05).Conclusions The 128-slice spiral CT can accurately evaluated the relationship between the nature of coronary plaque and the type of angina pectoris,which is of great value in the early warning and angina pectoris classification of high-risk patients with coronary heart disease.