The present situation of automated external defibrillator in inferior troops is analyzed.The shortcomings of current equipment are explained from both the troop itself and outer objective conditions from the aspects including false operation,low efficiency,use limited,etc.The potential prospects are given for the application of automated external defibrillator in inferior troops the inferior troops bring in the automated erternal defibrillator,not only the technical personnel,but also the sergent can operate it,making the warking more effectively.[Chinese Medical Equipment Journal,2008,29(2):72-73]

Objective To investigate the techniques of electrical defibrillation and their application to cardiopulmonary re-suscitation(CPR).Methods On the basis of reviewing the definition of electrical defibrillation,the main defibrillation tech-niques and their developments were introduced,as well as the selection of shock energy.The role that defibrillation played during CPR was defined according to the consensus.Results As an unfashionable technique,monophasic waveforms was inclined to be replaced by present biphasic waveform including biphasic truncated exponential(BTE) waveform and recti-linear biphasic waveform(RBW).The selected shock energy varied with the waveform that a defibrillator made use of,i.e.a monophasic defibrillator required a higher energy level as usual,whereas a biphasic one did not.It was deemed that biphasic technique presented an excellence in less damage to heart in addition to higher rate of successful defibrillation.In the critical care for sudden cardiac arrest with a shockable rhythm,the protocol of "1 shock + 5 cycles of CPR" should be recommended.Conclusion Electrical defibrillation techniques consist mainly of monophasic waveform and biphasic wave-form,between which the latter gains an advantage over the former.On the grounds of modern emergency medicine,defib-rillation has to be performed in combination with CPR.

Objective To research the applicable ways on training and examination of defibrillator utilization in grassroots units. Methods The use of the "three-step training and two-part examination" mode, that is, three-step training(theoretical instruction, grouped practice and animal experiment), a total of 83 medical officers from inferior troops of PLA were trained for the use of defibrillators, and through passing two-part test(written test and skill test), the trainees were subsequently examined so that the efficacy of the training could be evaluated. Results The trainees can be acquired satisfying achievement in the two-part test after having passed the three-step training. The respectively average scores were 86.7 ?15.9 (written test) and 90.1?14.8 (skill test). Conclusion The "three-step training and two-part test" mode is a successful defib- rillators' training mode for inferior troops.

Objective To investigate the expression difference of vascular endothelial growth factor (VEGF)between lung cancer and lung benign disease,and its relation to clinical characteristics and prognosis of non-small cell lung cancer(NSCLC),and to research the possible role of VEGF in the growth of lung can- cer.Methods The expression of VEGF and microvascular density(MVD)were detected in 60 lung cancer tissues and 30 lung benign disease tissues after operation by immunohistochemical method and put up statisti- cal analysis.Results The positive rate of VEGF expression(63%)and MVD(45.13?10.27)in lung cancer tissues were both higher than those in lung benign disease tissues(27%,33?6.49)(P

With low molecular weight chitosan and poloxamer 188 as the joint carriers, ginsenoside Rg3 solid dispersions were prepared by using the solvent evaporation method for an in vitro dissolution test. Subsequently, differential scanning calorimetry (DSC), scanning electron microscopy (SEM) and X-ray diffraction (X-RD) were adopted for a phase analysis. The results showed that the 60 min in vitro cumulative dissolution rate of ginsenoside Rg3 solid dispersions prepared with low molecular weight chitosan and poloxamer 188 at the ratio of 2:1 exceeded 90%, and the drug was dispersed in carriers in an amorphous state. Therefore, ginsenoside Rg3 solid dispersions prepared with low molecular weight chitosan and poloxamer 188 could help significantly improve the drug dissolution, with a practical application value.
Chitosan ; chemistry ; Drug Compounding ; methods ; Ginsenosides ; chemistry ; Molecular Weight ; Poloxamer ; chemistry ; Solvents ; chemistry

Objective To evaluate interventional therapy in the treatment of interposition graft stenosis or occlusion after mesocaval shunts.Methods The clinical data of 19 cases of artificial vessel stenosis or occlusion after mesocaval shunts for portal hypertension at our department from march 2009 to march 2012 were retrospectively analyzed.Results In the 19 cases with artificial vessels stenosis or occlusion developed after mesocaval interposition shunts for portal hypertension,there were 5 cases in which acute thrombosis occurred within a week after the surgery.Catheter directed thrombolysis was successfully conducted.In 6 cases in which shunt stenosis developing 1 to 8 years after surgery were managed by balloon dilatation or stent angioplasty successfully.The shunt graft occlusion occurred in 8 cases after 1 to 4 years of surgery was successfully managed and the shunt was reopened by balloon dilatation or stent angioplasty in 6 cases,and in 2 the procedure was failed for the guide wire can't go through the anastomotic site of artificial vessel-superior mesenteric vein.In 11 cases embolization of the esophagogastric varices was successfully carried out for postoperative standard anticoagulation.During a period of 3 months to 3 years follow-up,stenosis recurred 1 year after balloon dilatation in one case,and stenosis was managed by angioplasty successfully.Conclusions Interventional radiological techniques by percutaneous puncture through femoral vein-inferior vena cava-artificial vessel-portal vein (including catheter directed thrombolysis,balloon dilatation,stent placement,etc) are less traumatic,highly successful in the treatment of shunt stenosis or occlusion after mesocaval shunts in portal hypertension.

Objective:To validate the clinical value of CT-guided curve-needle percutaneous ethanol injection (CNPEI) for celiac plexus block analgesia. Methods: Thirty-two patients with end-stage cancer, including 13 complicated with extensive retroperitoneal lymph node enlargement and fusion, were enrolled in this study. All patients complained of refractory upper abdominal pain and had received narcotic analgesics and radiotherapy, but the analgesic effect was not good. CT-guided CNPEI was therefore prescribed. Results: The effective rates of CT-guided CNPEI were 100%, 100%, 96.9%, 90.6%, 87.5%, and 84.4% immediately,and at 2 weeks, 4 weeks, 8 weeks, 12 weeks, and 16 weeks after treatment, respectively. All enlarged lymph nodes had obvious necrosis and became shrunk. Conclusion: Combined application of bilateral anterior and posterior diaphragmatic crura block and trans-lymph node block can produce good analgesic effects, and curve-needle puncture make the above technique simpler.

Objective:To validate the therapeutic value of CT-guided percutaneous ethanol injection (PEI) in the treatment of metastatic adrenal tumors. Methods: Thirty-one foci (diameter ranging from 1.5 cm to 7.2 cm) in 25 patients with metastatic adrenal tumors were treated with CT-guided PEI for more than twice. Plain and enhanced CT scans were performed 1-2 months after PEI to observe the size and necrosis of the tumors. Results: Post-PEI enhanced CT scan showed that 18 of the 20 foci with diameters less than 3 cm completely necrotized; 11 foci with diameters between 3 cm and 7.2 cm necrotized partially, and 2 foci completely necrotized after another 2-3 courses of PEI treatment. Conclusion: CT-guided PEI is a simple and minimally invasive means for treatment of metastatic adrenal tumors, and the therapeutic effect is satisfactory.

Adolescent ; Child ; Child, Preschool ; Female ; Humans ; Infant ; Male ; Mucocutaneous Lymph Node Syndrome ; complications ; Pneumonia, Mycoplasma ; diagnosis ; drug therapy ; etiology

To prepare ginseng saponin Compound K with ultrasound-assisted total zymolytic ginseng saponins. The conversion rate was taken as the index to detect the pre-treatment factors such as ultrasonic power and ultrasonic time, as well as the impact of enzymatic factors, such as pH value, temperature, concentration of substrate, dosage of enzyme and reaction time, on the conversion rate. The response surface method was used to optimize the preparation conditions. The enzymolytic products were identified with MS, 1H-NMR and 13C-NMR. The results showed that the optimum conditions of the ultrasound-assisted enzymolysis were 250 W for ultrasonic power, 15 min for ultrasonic time, 5.5 for enzymolytic pH, 50 degrees C for enzymolytic temperature, 36 h for enzymolytic time, 4:5 for enzymolytic dosage: substrate and 1.0 g x L(-1) for concentration of substrate. The relative molecular mass of reaction products was 622.4. Therefore, the nuclear magnetic map verified that the reaction product was rare ginseng saponin Compound K. Under the above conditions, based on the total zymolytic ginseng saponins, the conversion rate of rare ginseng saponin Compound K was 6.91% in proportion to the total of ginsenosides. The process features gentle reaction conditions, high conversion rate and simple and reliable process, which is suitable for industrial production.
Chemistry, Pharmaceutical ; Drugs, Chinese Herbal ; chemistry ; isolation & purification ; Enzymes ; chemistry ; Panax ; chemistry ; Plant Roots ; chemistry ; Saponins ; chemistry ; isolation & purification ; Ultrasonics ; methods