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1.
Chinese Journal of Postgraduates of Medicine ; (36): 23-26, 2011.
Article in Chinese | WPRIM | ID: wpr-417318

ABSTRACT

ObjectiveTo evaluate the effectiveness and safety of high frequency electronic associating stents insertion and subsequent radiotherapy guided by fiberoptic bronchoscope in treating tracheobronchial stenosis caused by lung and esophagus carcinoma.MethodsFifty-two patients which were ascertained with serious stenosis in trachea or bronchi by fiberoptic bronchoscope were subjected to the study.Fiberoptic bronchoscope was used to investigate the location,extent,blood supply and the degree of tracheobronchial stenosis before the study.After the focus in the airways was cleared up with high frequency electronic,electrocoagulation and snare under the guide of the euthyphoria of fiberoptic bronchoscope,Ni-Ti memory alloy stents were placed into the stenosis airways.The 52 patients were divided into two groups with 26 cases each:the stent group and the stent associating radiotherapy group(radiotherapy group).The later group accepted subsequent radiotherapy after the therapy.The following indexes of the two groups were investigated:short-time clinical effect,dyspnea index class,rate and average time of airway restenosis,life span and survival rate.ResultsAfter therapy,the 52 patients had obvious improvements in dyspnea and the diameter of the stenosis airways.The short-time total effective rate was 100.0% (52/52),but there was not significant difference between the two groups(P> 0.05 ).After therapy,there was significant difference in two groups in dyspnea index class(P < 0.01 ).Although there was not significant difference in the rate of airway restenosis between the two groups(P>0.05),the average time of airway restenosis in the radiotherapy group was obviously longer than that in the stent group(P< 0.01 ).The survival rate of the radiotherapy group in the 6th and 9th month after therapy was higher than that in the stent group (P < 0.05),but there was no significantdifferenee in the 3rd and 12th month (P >0.05).ConclusionHigh frequency electronic associating stents insertion and subsequent radiotherapy guided by fiberoptic bronchoscope is an effective and safe treatment for the patients suffering tracheobronchial stenosis caused by lung and esophagus carcinoma.

2.
Chinese Journal of Immunology ; (12)2000.
Article in Chinese | WPRIM | ID: wpr-547884

ABSTRACT

Objective:To investigate the distribution and expression of the cyclooxygenase-2(COX-2)in lung tissues and the effect of its inhibition in bleomycin(BLM)-induced pulmonary fibrosis in rats.Methods:72 male SD rats were randomly divided into three groups:the control group,model group and celecoxib group.Immunohistochemical method was used to detect the distribution of COX-2 in the stage of acute pulmonary alveolitis.HE and Masson staining methods were used to evaculate the degree of alveolitis and pulmonary fibrosis.Results:(1)In early stage of pulmonary fibrosis except in the control group,COX-2 expression was found in small bronchial epithelial cells in the other two groups,especially the model group.(2)Compared with the control group,the other two groups had alveolitis(P

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