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This article describes the progress of developing the training base and training methods for bronchoscopists at Changhai hospital in recent years,and then discusses the potential issues and solutions that might occure in the course of training,and finally explores the model and methodology to optimize the training program for Chinese bronchosocpists.
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<p><b>BACKGROUND</b>To observe the effects of photodynamic therapy (PDT) on human lung adenocarcinoma cell line A549 in vitro.</p><p><b>METHODS</b>Human lung adenocarcinoma cell line A549 was used to investigate the killing role of PDT with hematoporphyrin derivative (HPD) as photosensitizer and semiconductor successive laser as light source. The cultured cell was treated with different concentrations of HPD and different do-sages of laser, then MTT colorometric assay was applied to measure the OD492.</p><p><b>RESULTS</b>5 mg/L of HPD was confirmed no effect. 10 mg/L of HPD could produce a marked therapeutical effect under the condition of same laser dosage. When the concentration of HPD was increased, the effect was not risen obviously. 10 J/cm² of laser could lead OD492 to decrease to platform under the condition of same HPD concentration. So the killing effect was saturated when the PDT parameters were selected as 10 mg/L of HPD and 10 J/cm² of laser. Under the same laser capacity density of 10 J/cm², A549 cells were exposured to three different duty-time fabrications which were 214 mw×10 min, 428 mw×5 min and 714 mw×3 min.The outcomes showed that OD492 had no statistical difference.</p><p><b>CONCLUSIONS</b>PDT has a significant killing effect on human lung adenocarcinoma cell line A549. 10 mg/L of HPD and 10 J/cm² of laser were the best parameters of this experiment. The PDT effect is not influenced by different duty-time fabrications under the best laser capacity density.</p>
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Objective:To investigate the risk factors related to pulmonary thromboembolism(PTE)and/or deep venous thrombosis(DVT)in hospitalized patients based on the analysis of PTE and DVT epidemiological data.Methods:The clinical data of218inpatients with PTE and/or DVT in recent10years were reviewed.The epidemiological data including tendency of incidence,demographic features,co-existing diseases,acquired risk factors and ABO blood type were analyzed.Results:There was an increasing trend in the number of inpatients with PTE and/or DVT.The male/female ratio was1.45,and was1∶1in patients≥45years old.The main risk factors of PTE and/or DVT were operation,trauma and fracture within3months.There was no significant difference in these main risk factors between relapse patients and non-relapse patients.The ratio of non-O blood type in inpatients with PTE and/or DVT was higher than in control group(P