ObjectiveTo explore the clinical effect of video-assisted thoracoscopic surgery(VATS) for chronic empyema. Methods74 patients with chronic empyema were divided into experimental group and control group,control group was given decorticationoflung,and experimental group was given VATS. ResultsThe duration of chest tube drainage, hospitalization and complications in experimental group was significantly better than that in control group,it showed better clinical effect. ConclusionFor part of patients without the serious disease change of chronic empyema, if the surgery indication could be controlled strictly, the VATS was considerable.

Angioplasty, Balloon, Coronary ; Coronary Artery Disease ; therapy ; Humans ; Male ; Middle Aged ; Myocardial Infarction ; therapy ; Stents ; Vascular Malformations ; therapy

OBJECTIVE To analysis the effect of air disinfection by using nanometer light catalysis decontamination machine in operating room. METHODS By compare the effectiveness of air disinfection both by using nanometer light catalysis decontamination machine and ultraviolet rays light. RESULTS The result of tests is 0 CFU/m~2 by nanometer light catalysis decontamination machine and 33.3 CFU/m~2 by ultraviolet rays light in unmanned environment;By different groups: F=220.423,P=0.000,P

Objective To establish an effective PCR assay for leptospirosis detection , and applicate the assay in tree shrew, mongolian gerbil and gray hamster .Methods Sequence of leptospira was obtained from the NCBI Genbank , and primers were designed based on the sequences .The positive amplified fragments were sequenced to verify the reliability of the method.The samples from tree shrew, mongolian gerbils and hamsters were tested using this PCR method .Results The PCR method for detection of leptospirosis was successfully established .The positive rate of Leptospira was 8.33% in 60 samples of conventional tree shrews , 100% in 104 samples of the conventional Mongolian gerbils , and 0% in 60 samples of clean gray hamsters.Conclusions The establishment of this PCR assay is useful in the detection of leptospirosis in tree shrew, mongolian gerbil and gray hamster .The results of our investigation of leptospira infection levels of the three new experimental animals may promote their application in biomedical research .

Aged ; Aged, 80 and over ; Arthroplasty ; methods ; Hip Joint ; surgery ; Hip Prosthesis ; adverse effects ; Humans ; Male ; Nerve Compression Syndromes ; etiology ; Sciatic Neuropathy ; etiology

Objective To study the genomic molecular organization and genotype of human astro-virus infected infants in Shanghai of China. Methods Based on the published genomic sequence of HAstV (GenBank), the whole genome of one isolate human astrovirus was sequenced by specific primers. The PCR-products were cloned to pMD18-T vector and sequenced, phylogenetic tree was constructed by the Neighbor-Joining method with MEGA 4 software. Results The genome of HAstV-SH is 6807 hp, contains three ORFs: ORF1a and 1b encode the non-structural protein (from 83 nt to 4372 nt), ORF2 encodes the structural protein (from 4364 nt to 6727 nt). Compared with the ORF2 gene of those eight astrovirus sero-types in GenBank, revealed that the highest homology is with genotype 1 (97%). Homology with other gen-otypes ranged between 63% and 70%. Conclusion HAstV-SH belonged to genotype 1 and closely clus-tered with a strain of Japan (AB009985).

Objective To study and summarize the tumor-free technique points for coordinating the operations aiming at rejecting aggressive spinal tumors by microwave and hyperthermia induced method. Methods 12 cases of patients with malignant bone tumors were performed with operations for rejecting tumor, using tumor-free technique to avoid cross infection, protect normal tissue nearby and prevent complications effectively. Results 12 cases of operations were successfully performed, no metastasis Was seen, no adjacent tissue injury and peri-operative complications occurod. Conclusions Microwave-induced hyperthermia in management of aggressive spinal bone tumors can increase the post-operative living-quality of patients, make both medical staff and patients satisfied and reach anticipated effect.

Objective To assess the value of susceptibility-weighted imaging (SWI) in staging hepatic fibrosis (HF) in rabbits. Methods Sixty healthy rabbits were randomly divided into HF group (n=44), control group (n=16). Rabbits in the HF group and supplementary group were injected subcutaneously with 50%CCl4 oily solution to establish hepatic fibrosis model. On the basis of preliminary test, 8 rabbits in the HF group and 4 rabbits in the control group were selected randomly at the 4th, 5th, 6th, 10th week after CCL4 injection ,respectively , to undergo liver MR scan,including conventional axial T1WI, T2WI and axial SWI, DWI scan. All rabbits were sacrificed after MR scan and the tissue of liver were sampled for pathological test and hepatic fibrosis staging. Rabbits were classified into group F0, F1-2 and F3-4 based on pathological results. Liver signal intensity (SI), and liver-to-muscle SI ratio were measured on SWI images and ADC values were measured on DWI images correspondently. One-way ANOVA analysis was performed to compare difference in liver SI, liver-to-muscle SI ratio and ADC values among group F0 (no fibrosis), F1-2 (mild-moderate fibrosis) and F3-4 (severe fibrosis) . Spearman correlation analysis was performed to correlate pathological staging and liver SI, liver-to-muscle SI ratio and ADC values. Receiver operating characteristic (ROC) curve analysis was performed to compare the diagnostic performance of SWI and DWI for staging HF. Results Two and 5 rabbits in the HF group died at the 5th and the 6th week after CCL4 injection , respectively due to acute hepatic necrosis, hepatorrhexis and systemic failure. Seven rabbits in supplementary group were used as supplement. Of the 16 rabbits in the control group, 1 was excluded from the study due to liver fibrosis. Fifteen rabbits in group F0, sixteen rabbits in group F1-2 and sixteen rabbits in group F3-4 underwent MRI and were included into this study. Liver-to-muscle SI ratio in group F0, F1-2 and F3-4 were 0.973 ± 0.020, 0.880 ± 0.090 and 0.649 ± 0.140, respectively. Liver SI were 378 ± 45, 374 ± 19 and 317 ± 34. ADC values were (1.473 ± 0.320) × 10-3, (1.311 ± 0.310) × 10-3 and (0.942 ± 0.180) × 10-3mm2/s. There were statistically significant differences in liver SI, liver-to-muscle SI ratio and ADC values among group F0, F1-2 and F3-4 (F=46.571,15.803 and 15.317, P< 0.01). Liver-to-muscle SI ratio was highly negatively correlated with HF staging (r=-0.818,P<0.01), while liver SI and ADC values were moderately correlated with HF staging (r=-0.565,-0.630;P<0.01). Area under ROC curve (AUC) of liver-to-muscle SI ratio, liver SI and ADC value for differentiating hepatic fibrosis stage F0 and stage F1-4 were 0.916, 0.695 and 0.768, while the AUC for differentiating hepatic fibrosis stage F0-2 and stage F3-4 were 0.951, 0.904 and 0.900. Conclusion Liver-to-muscle SI ratio on SWI provide added diagnostic value and could be an useful parameter for staging hepatic fibrosis.

Objective: To study the phenotypes and functions of dendritic cells (DCs) derived from peripheral blood monocytes of chronic hepatitis B (CHB) patients with different traditional Chinese medicine (TCM) syndrome types, and to explore the relationship between TCM syndrome type and DC functions. Methods: Sixty CHB patients were included in this study. All the CHB patients were divided into spleen deficiency and liver stagnation, spleen deficiency and dampness-heat and deficiency of both spleen and kidney groups according to TCM syndrome diagnosis standard. There were 20 cases in each group, and ten healthy people were included as normal control. The volunteer's peripheral blood was collected for monocyte separation, biochemical test and hepatitis B virus DNA loads detection. DCs were induced and isolated from peripheral blood monocytes, and then the expressions of surface markers CD80, CD86, CD1a and HLA-DR were detected by flow cytometric analysis method. Interleukin-10 (IL-10) production of the DCs was quantified by enzyme-linked immunosorbent assay. Results: The proliferation of DCs in the CHB patients was slower than that in the healthy volunteers (P<0.05). The expressions of DC surface molecules such as CD80, CD86, and CD1a were obviously decreased in the CHB patients as compared with those in the healthy volunteers (P<0.05). More over, expressions of DC surface molecules were different among CHB patients with different TCM syndrome types. The positive expressions of CD80, CD1a, and HLA-DR in the CHB patients with spleen deficiency and liver stagnation were obviously higher than those in the CHB patients with deficiency of both spleen and kidney (P<0.05), and the CD1a expression in the CHB patients with spleen deficiency and dampness-heat was higher than that in the CHB patients with deficiency of both spleen and kidney (P<0.05). In DC culture supernatant, the IL-10 concentration of the CHB patients with deficiency of both spleen and kidney was higher than that of the CHB patients with spleen deficiency and liver stagnation (P<0.05), and the IL-10 concentrations of the CHB patients with different TCM syndrome types were higher than that of the healthy volunteers (P<0.05). Conclusion: During the pathogenic course of CHB, the phenotypes and functions of DCs are different in CHB patients with different TCM syndrome types. It suggests that there is a correlation between TCM syndrome type and body immunity function.

Objective To evaluate the clinical effect of absorbable self-enhancing cartilage nails in the treatment of radial head fractures.Methods Data of 22 patients with radial head fractures,who had undergone open reduction and internal fixation with absorbable self-enhancing cartilage nails from January 2008 to December 2011,were retrospectively analyzed.Among them,data of 18 patients were complete,including 10 males and 8 females.According to the Mason classification,there were 14 cases of Mason Ⅱ,3 cases of Mason Ⅲ and 1 case of Mason Ⅳ.Two patients were combined with radial neck fractures,9 with osteochondral fractures of capitellum,and 1 with posterior dislocation of the elbow and olecranon avulsion fracture.The radial head fractures were temporarily fixed with Kirschner wires after open reduction,then absorbable self-enhancing cartilage nails with length from 16 to 24 mm and diameters of 1.5 mm were applied to reach final fixation.The heads of nails were right underneath of cartilages without penetrating bone cortexes on the contralateral side.The radial neck fractures were reduced and fixed with T-plates or anatomical plates after the radial head fractures were fixed with cartilage nails.Four cases of osteochondral fracture of capitellum were fixed with absorbable sutures to external epicondyle of humerus.For other 5 cases of osteochondral fracture of capitellum,the bone fragments were removed due to too small to fix.Results All 18 patients were followed up for 6 to 54 months (average,31.3 months).All fractures achieved bone union,and the healing time ranged from 5 to 12 weeks (average,8.7 weeks).There were no complications,such as internal fixation failure,nonunion,hematoma,sinus formation,osteolytic changes of radial heads and so on.According to the Broberg-Morrey elbow performance score,13 cases were excellent,4 good,and 1 fair,with the total excellent and good rate of 94.44％ (17/18).At final follow-up,the elbow range of motion was 90° to 150° (average,123.8°),and the range of forearm rotation was 130° to 180° (average,152.5°).Conclusion Absorbable self-enhancing cartilage nails can be used to treat various kinds of radial head fractures,and the results are satisfactory.