The purpose of this study was to evaluate the features of mediastinal lymph nodes in lung cancer patients during endoscopic ultrasonography(EUS), and to establish the clinical method for the preoperative staging of lung cancer using EUS. The EUS patterns of 103 lymph nodes in 21 patients with lung cancer were evaluated. Confirmation of benign and malignant lymph nodes was obtained by surgical resection and pathology. The following features were compared between benign and malignant lymph nodes: short axis , long axis, distinct margins and the shape of nodes. The results showed that all of the lymph nodes were hypoechoic. Both the short axis greater than 1.0cm and distinct margins or round shape independently predicted malignant invasion ( P

Objective To investigate the effectiveness of radio gu ided surgery (RGS) in lung carcinoma by using ~18F-FDG. Methods Forty mice bearing lung adenocarcinoma were divided randomly into two gro ups according to presence or absence of the lung metastasis. A dose of 200?l (1 00?Ci) of ~18F-FDG was injected via the tail vein. The external radioimmu nography was performed after injection. All viscerae and tumor were detected i n vivo by means of a hand-held gammaray-detecting probe (GDP), and the radio active distribution was analyzed with the well-gammaray detector. Resul ts The tumor images in mice were clear, and the images were best at two hours after injection. The values of %ID/g of tumor and heart obtained by well -gammaray detector were higher than those of other organs. Ratios of tumor/norm al tissue (T/NT) except cardiac muscle being detected by GDP ranged from 3.71 t o 13.57. There was a significant difference between the radioactivity of lung t issues in lung metastasis group and that of control group (P

Objective：The aim of this study was to investigate the abnormal expressions of CD44 protein and gene, relationship between the abnormal expressions of CD44 protein and gene and lymph node metastasis of human lung carcinomas. Methods： SP immunohistochemistry and RT PCR/Southern methods were used to investigate the expressions of CD44 protein and gene of human lung carcinomas. The immunohistochemistry results were quantitatively analyzed with QTM970 computed image analyzer. Results： SP immunohistochemistry results and quantitative analysis revealed that stronger expression of CD44 protein was observed in non small cell lung carcinomas than in para carcinomatous pulmonary tissues, in non small cell lung carcinomas with lymph node metastasis than in non small cell lung carcinomas without lymph node metastasis （ F=16.67, P< 0.01） . RT PCR/Southern results shew that more abnormal CD44 mRNA transcripts were observed in the non small cell lung carcinomas (NSCLCs) with lymph nodes metastasis than in non small cell lung carcinomas without lymph node metastasis（ χ 2=12.13,P< 0.01） . Conclusions： The abnormal expressions of CD44 protein and gene were observed in non small cell lung carcinomas. The abnormal expressions are not only involved in the development, but also in the lymph nodes metastasis of non small cell lung carcinomas. CD44 expressions may have significant clinical importance in the evaluation of the patient prognosis and the potential tendency of lymph nodes metastasis.

Adult ; Dermatitis, Contact ; Dimethylformamide ; poisoning ; Female ; Humans

Adult ; Humans ; Male ; Nitrogen Oxides ; poisoning ; Occupational Exposure

Adult ; Burns ; etiology ; Humans ; Male ; Middle Aged ; Paraquat ; adverse effects ; Scrotum ; injuries

Acute Disease ; Adult ; Humans ; Male ; Occupational Diseases ; Phosgene ; poisoning

Digestive System ; drug effects ; pathology ; Humans ; Paraquat ; poisoning

Objective To summarize the experience of general anesthesia management in pregnant women with pulmonary hypertension who had to undergo cesarean section. Methods Clinical data, anesthesia methods and outcome of 6 pregnant women with pulmonary hypertension were analyzed. Among them, 1 case of patent ductus arteriosus had to undergo cesarean section twice, because the interval time of twice cesarean section was longer (2 years), and the number of pregnant women was counted to 7 cases. Results Seven patients had to undergo cesarean section with general anesthesia, and all the pregnant women′s hemodynamic were stable during the operation. After operation, 1 pregnant woman discharged from hospital against the doctor′s advices because of massive brain infarction, and the others were all rehabilitated. Seven newborns status:preterm in 3 cases, cardiopulmonary resuscitation in 2 cases, the Apgar score of the others newborns was 9-10 scores. Conclusions Pregnant women with pulmonary hypertension have high peri-operative risk, especially those who undergo general anesthesia. To improve the survival rate, anesthetist should reinforce the perioperative care, maintain oxygen supply, reduce the stress response, maintain the preload and blood pressure, and avoid the increasing of pulmonary pressure.

Acute Disease ; Humans ; Nervous System Diseases ; diagnosis ; therapy ; Organophosphate Poisoning ; diagnosis ; therapy