OBJECTIVE To improve efficiency of hospital infection administration and take strict precautions against medical malpractice in Chinese level Ⅱ hospital of UN Peacekeeping Army in Lebanon.METHODS The current situations of its hospital infection administration were enumerated,compared and analyzed,and corresponding measures of administration were suggested.RESULTS Under the influence of characters of medical missions during peacekeeping,the hospital infection administration presented the problems that patients and disease spectra were diversified,the rate of hospital infection was influenced by peacekeeping mission,the positive rate of HIV was high,medical workers protection awareness was lagged behind,and the disposition of hospital was illegitimate;many measures should be taken to enhance the administration level.CONCLUSIONS In order to well develop the hospital infection administration in Chinese level Ⅱ hospital of UN Peacekeeping Army in Lebanon,we should reform and improve the system of hospital infection administration,and establish an effective and systematic prevention system of hospital infection.

This paper reports a novel design of bionic left ventricular auxiliary pump, and the characteristic is that elastic diaphragm of pump driven by hydraulic, having smooth, reliable blood supply, can prevent blood clots, can use the flow sensor, pressure sensor detection showing the blood pressure and blood volume at the inlet and outlet of the pump. The pump can go with heart rate synchronization or asynchronous auxiliary by the R wave of human body's ECG. The design goal is realization of bionic throb. Through the animal experiment, the blood pressure waveforms are close to expectations, stable flow can stroke according to the set value, which prove that the pump can meet the requirement for heart disease patients for bionic left ventricular assistant.
Animals ; Blood Pressure ; Heart Rate ; Heart Ventricles ; Heart-Assist Devices ; Humans ; Prosthesis Design ; Ventricular Function, Left

Objective:To study the specific photochemical effects of a newly designed target photosensitizer. Methods Based on the technique of antisense nucleic acid and the principle of photochemical reaction effects,a specific sensitizer,TFO P has been designed and synthesized.When in coordination with long wave ultraviolet ray(UVA) ,this decorated complex (TFO P) was added into the blood cell suspension to inactivate the contaminating virus( duck hepatitis virus B,DHBV).The efficacy of specific binding to DHBV DNA and viral inactivation by TFO P was detected by gel shift blot assay and infection of primary culture of duck hepatocyte.Results The designed TFO P could specifically bind to different DHBV DNA line sample and present different linking level.With a TFO P concentration of 0.1 nmol/ml and UVA intensity of 1800 ?W/cm 2,the DHBV in blood cell suspension could be reduced by 1.90～5.40 logs.Conclcusion The photochemical effects of TFO P could significant inactivate DHBV in blood.

Objective: To evaluate the effect of concomitant chemoradiotherapy for the prevention of recurrence and metastasis of postoperative salivary adenoid cystic carcinoma(SACC).Methods: 14 cases of salivary adenoid cystic carcinoma after operation were treated with concomitant chemoradiotherapy. Regular radiotherapy of 60 Gy and chemotherapy with hydroxycamptothecin (HCPT) at 10 mg/m 2 , 3 times a week, were administered. HCPT was given in 1st, 2nd, 4th and 5th week. Recurrence and metastasis of SACC after operation were observed using CT, MRI, ultrasonography and X ray. Results: After 3～17 months' follow up, relapse free survival was 100%. No recurrence and metastasis of SACC after operation were found. Adverse reactions of the chemotherapy were nausea, vomiting and leukopenia. After suspended in a short time and using ondansetron and /or G CSF the chemotherapy of HCPT was continued and completed. Conclusion: concomitant chemoradiotherapy of HCPT and radiotherapy can prevent recurrence and metastasis of SACC after operation. The efficacy of long term needs further observation.

Aim To investigate the lipid-lowering mechanism of Chinese Medicine curcumin.A sterol regulatory report system of LDLR gene expression in HEK-293 cell line was established.Method A green fluorescent protein(GFP) gene was constructed downstream of the sterol regulatory element-1(SRE-1) and the constructed plasmid was introduced into HEK-293 cell line.This SRE-GFP transfected 293 cells were treated with different concentration of curcumin for 2 days.The expression of GFP in the cells was measured by a fluorescence microscope and Flow Cytometry.Results The expression of GFP in SRE-GFP transfected 293 cells was obviously induced by curcumin.Conclusion Curcumin may positively affect the expression of LDLR gene by its influence on SRE-1.

Objective To improve the preoperative diagnosis accuracy of cerebellopontine angle tumors through analyzing MRI findings. Methods Ninety-six cases with cerebellopontine angle tumors, confirmed by pathology and surgery, were collected and underwent MRI scan plus enhanced MRI. Among the 96 capes, we observed acoustic neurinoma in 55 cases, meningioma in 20 cases, cholesteatoma in 9 cases, trigeminal neuroma in 7 cases,cavernous hemangioma in 3 cases,arachnoid cyst in 2 cases. The MRI characteristics of all cases were analyzed retrospectively. Results The chief type of tumor happened in the cerebellopontine angle zone was acoustic neurinoma,followed in order by meningioma,cholesteatoma,trigeminal neuroma,cavernous hemangioma and arachnoid cyst. The accuracy of preoperative localization and qualitative diagnosis were 100% and 94.7%respectively.Conclusion MRI has a high value in the diagnosis and differential diagnosis of cerebellopontine angle tumors,which can be used as a preferred preoperative examination method in cerebellopontine angle tumors.

In medical education,the application of discussion of teaching reform can enhance medical students'interest in learning,stimulate their innovative thinking,develop their clinical thinking and critical thinking.improve their psychological quality and language skills and improve knowledge and comprehensive quality of teachers as well.

Objective To investigate the effects and significance of neuronavigation and electrocorticography monitoring in resection of eloquent brain glioma. Methods Thirty-six cases with intracranial tumors accepted microneurosurgery resection under neuronavigation and electrocorticography monitoring. The clinical data and postoperative outcome were analyzed. Results The mean registration error was (2.0 ±0. 5)mm in all operations and all skin flaps and bone windows designed by neuronavigation could fit the operation demands. Total resectin of the tumor was achieved in 31 cases and subtotal resection in 5 cases. Neurological symptoms improved and no severe complications or death happened in all patients. Conclusion Neuronavigation combined with electrocorticography monitoring can accurately locate the eloquent glioma and retrieve the brain shift. This method is a real-time technique and has functional test ability. It can improve the total removal rate and decrease the mortality and disabled rate.

Objective To discuss the safety and advantages of prone-straddle position applied in transvaginal hysteromyomectomy of the posterior wall of the uterus. Methods The clinical data of patients who were admitted into our hospital from March 2013 to Janaury 2015 and received transvaginal hysteromyomectomy were retrospectively analyzed. They were divided into group A ( prone-straddle position, 30 cases) and group B (traditional lithotomy position,24 cases). The exposure of operative field, convenience of operation, time of the placement, time of operation, patient satisfaction, as well as patients’ heart rate, blood pressure, and oxyhemoglobin saturation were observed and ana-lyzed. Results Compared with the lithotomy position, there were significant differences in the time of the placement and the time of opera-tion in the patients treated by prone-straddle position. The patients with prone-straddle position cooperated well, and there was no obvious discomfort. Their vital signs were stable during the operation. The operative field during prone-straddle position exposed better and it was more convenient which make the operation became easier for both the operators and nurses. Conclusion Prone-straddle position applied in transvaginal hysteromyomectomy of the posterior wall of the uterus is safe and practicable, and it is valuable for clinical application.

Objective To determine the anatomical basis of an algorithm to safely elevate the deep circumflex iliac artery osteocutaneous perforator(DCIAP) flap. Methods 1.Six unfixed corpses underwent whole body gelatine/lead oxide injection.Specimens were dissected by layers.Angiography and photography were used to document the precise course,size,location,and type of individual perforators in the lateral lumbar region.The surface areas of cutaneous territories and perforator zones were measured and calculated with Photoshop and Scion Image.2.One specimen also underwent whole body carboxymethylcellulose/lead oxide injection,CT scan and 3D-Reconstrution. Results An average of 1.6 DCIA perforators with a diameter of 0.7mm was present in 92% of specimens.Perforators were located 5～10 cm posterior to the anterior superior iliac spine,12～35mm above the crest,with a perforator zone of 31 cm~2.The DCIA reliably perfused the medial aspect of the iliac crest.Conclusion The DCIA reliably perfused the medial aspect of the iliac crest and lateral lumbar region.It offers a large quantity of bone on a pedicle of large diameter.The mobility of the skin component allows better tissue positioning during complex reconstructions.