Objective To investigate the role of contrast-enhanced ultrasound (CEUS) on the diagnostic efficacy of ultrasound-guided percutaneous biopsy of peripheral lung lesions. Methods Ninty-six patients with pleural-based lesions underwent percutaneous ultrasound-guided biopsy. Of the 96 patients,54patients underwent CEUS before biopsy and enhancement information was referred for the selecting of tissue sampling site. The rest of 42 patients didn' t undergo CEUS before biopsy. The difference in the diagnostic accuracy between the two groups was analyzed to evaluate the value of CEUS before biopsy.Results Of the 52 patients in the CEUS group,48 were malignant,and 6 were benign. Of the 42 patients in the un-CEUS group,36 were malignant, and 6 were benign. Necrosis (areas lacking of enhancement) was demonstrated in 41.7％ (20/48) of the patients with malignant lesions in CEUS group, and necrosis incidence was increased with the increase of the dimension of the malignant lesions. No necrosis area was demonstrated in 6 benign lesions. The rate of successful initial biopsy in CEUS group (98.1 ％ ,53/54) was statistically higher than that in un-CEUS group ( 85.7％, 36/42 ) ( P ＜ 0.05 ). Tissue necrosis and denaturalization attributed to most of the inconclusive pathologic diagnosis. Conclusions CEUS before transthoracic peripheral lung lesion biopsy improved the diagnostic accuracy of the procedure by providing information for differentiating viable or necrotic tissue and consequently provide more accurate information about the site of biopsy.

BACKGROUND:Percutaneous vertebroplasty with bone cement plus hyperextension position reset for acute thoracolumbar vertebral osteoporotic compression fractures has been reported to achieve good clinical efficacy.OBJECTIVE:To evaluate the efficacy of unilateral percutaneous vertebroplasty with bone cement plus hyperextension position reset for Kümmell disease in the elderly.METHODS:Twenty-two old patients with Kümmell disease were included,involving 8 males and 14 females,aged 55-84 years old,and the injuried vertebrae included T11 (n=2),T12 (n=8),L1 (n=7),L2 (n=4),L3 (n=2),L4 (n=2),and L5 (n=1).All patients underwent the unilateral percutaneous vertebroplasty with bone cement plus hyperextension position reset.The visual analogue scale and the Oswestry Disability Index scores,vertebral body height as well as vertebral kyphosis angle were determined before and after treatment.RESULTS AND CONCLUSION:(1) All patients were successfully operated,pain relieved or disappeared within 24 hours postoperatively.No spinal cord injury,pulmonary embolism and other complications were found.One patient presented with cement leakage without obvious clinical symptoms;two patients had non-adjacent vertebral fractures during follow-up.(2) The visual analogue scale and Oswestry Disability Index scores at 1 day postoperatively were significantly lower than those at baseline (P ＜ 0.05).(3) The anterior,medial and posterior height of involved vertebral body,kyphotic angle of involved vertebral body at 1 day postoperatively were significantly higher than those at baseline (P ＜ 0.05).(4) These results manifest that unilateral percutaneous vertebropiasty with bone cement plus hyperextension position reset to treat Kümmell disease in the elderly can significantly relieve back pain,restore partial vertebral height,correct local kyphosis and improve functional recovery of the injured vertebrae.

Objective To study the effect of antivirus therapy of HBV reinfection and YMDD mutation after liver transplantation. Methods Fifteen of 317 patients with HBV-related end-stage liver diseases received lamivudine ( LAM ) monothereapy, others received combination low-dose hepatitis B immune globulin( HBIG) and LAM (or adefovir dipivoxil, ADV) therapy, as prophylaxis against HBV reinfection after OLT. Hepatitis serum markers, HBsAg, HBeAg, HBcAb-IgM, and HBcAg were detected every 2 weeks by immunohistochemistry. Serum HBV DNA was examined by PCR every 2 weeks. HBsAg and HBcAg in the liver specimens were examined by immunohistochemistry. YMDD mutation was detected by PCR in those patients with recurrence of positive HBV DNA posttransplantation. Results In LAM monotherapy group, 4 developed HBV reinfection out of 15 patients with pretreatment positve HBV DNA. Sixteen of 302 patients with combination HBIG and LAM therapy suffered from posttransplant HBV reinfection, the difference between the two groups was significant (26.7% vs. 5. 30% ,P

Objective To investigate the expression of focal adhesion kinase in peripheral blood of colorectal cancer and its clinical significance.Methods Focal adhesion kinase in peripheral blood was determined with flow cytometry in 40 cases of colorectal cancer and 20 cases of control group.Results The positive rate of focal adhesion kinase in colorectal cancer group was 60.0% and in control group was 25.0%,respectively(P

Objective:To provide reference for the introduction and application of intelligent access system. Methods:The intelli-gent access system and its work process in our hospital were introduced. The application effects in the emergency pharmacy were inves-tigated and the key points that should be paid more attention in the practice were discussed. Results:Comparing with the situation be-fore the application, the system could decrease prescription time by about 26. 1% and reduce walking work intensity by about 5 times, and the drug store room was decreased by about 30%. No dispensing error happened in nearly half a year after the application of the in-telligent access system. Conclusion:The application of intelligent access system in emergency pharmacy is the development trend of the future.

Objective To investigate the first human brucellosis outbreak in Fujian Province,aiming to identify the source,risk factors of infection,and recommend control measures.Methods Epidemiological investigation was conducted by combining with agricultural sector on human and animal in the incident area of Zhangzhou City of Fujian Province.Respondents included 17 professionals from the outbreak sheep farm,as well as 9 ones from four nearest farms (including 2 pig farms,1 sheep farm and 1 cow farm) in directions of eastern,southern,western and northern.Then information of cognitive level and daily protection on brucellosis among pasture breeding staffs through case studies were got,serum of pasture breeding staffs and animals was collected (including 262 from the outbreak sheep farm and 50 from another sheep farm which nearly 5 kilometres away) to detect brucellosis antibody,and sheep sources were investigated simultaneously.Results A total of 26 people were detected,the infection rate was 26.9％ (17 people,in the epidemic area),the other four farming units without brucellosis infection.In epidemic focus,seven human infections (5 confirmed cases,2 asymptomatic infected) were identified,with an infection rate 41.2％ (7/17) and the brucellosis antibody positive rate among sheep was 46.2％ (121/262),while no positive sheep in the nearest sheep farm (0/50).Both unprotected lamb handling and stillbirth treatment got a 100.0％ infection rate.Among the investigated professional staffs,92.3％ (24/26) had no awareness of clinical symptoms and signs of brucellosis,while 11.5％ (3/26) took protective measures when working.Conclusions Unquarantined sheep is the infection source of this brucellosis outbreak,unprotected lamb handling and stillbirth treatment are the main route of transmission.High sheep infection rate,lack of brucellosis awareness,precaution missing among pasture breeding staffs and animal quarantine are all contributing to this outbreak.

10.3969/j.issn.2095-4344.2013.23.008

Objective:To detect the changes of tumor necrosis factor-α(TNF-α) in nasopharyngeal secretion of patients with nasopharyngeal carcinoma(NPC).Method: The content of TNF-α in nasopharyngeal secretion was determined by radioimmunoassay (RIA) in 20 controls,52 patients with NPC.Result:The average concentrations of TNF-α were (12.95±4.62)pmol/L in control group,(33.68±15.13) pmol/L in NPC group and (64.00±11.57)pmol/L in NPC with necrosis group. The content of TNF-α in nasopharyngeal secretion in control group was lower significantly than that of patients with NPC (P<0.01).Conclusion:The level of TNF-α in nasopharyngeal secretion of NPC patients was higher than that of normal subjects. To detect the content of TNF-α in nasopharyngeal secretion is a useful test for the study and diagnosis of NPC.

Objective To prepare Mi 2 antigen,detect anti Mi 2 antibody and investigate its significance in autoimmune connective tissue diseases (CTD).Methods Mi 2 antigen was prepared from rabbit thymus acetone powder and purified by DE52 chromatography.Anti Mi 2 antibodies were tested in 40 normal controls and 315 patients with CTD by double immunodiffusion.The distribution of anti Mi 2 antibodies in CTD was analysed.The clinical characteristics of dermatomyositis between anti Mi 2 positive group and negative group were compared.Results The precipitation line developed between the antigen and the standard anti Mi 2 serum.In DE52 chromatography,Mi 2 antigen was found in elute with 0 1 mmol/L and 0 2 mmol/L NaCl.The positive rate of anti Mi 2 antibodies was 26 1%(12/46) in dermatomyositis and 4 5%(2/44) in polymyositis respectively.There were no positive cases in 50 patients with rheumatoid arthritis,30 patients with primary Sjgren syndrome (SS),60 patients with systemic lupus erythematosus,50 patients with systemic sclerosis,35 patients with other CTD and 40 normal controls.The specificity of anti Mi 2 antibody in dermatomyositis was 99 4%.In dermatomyositis,the patients with positive anti Mi 2 antibody usually presented skin lesions at beginning,and most patients had V sign and/or shawl sign during the course of disease.On the other hand,the antibody negative ones manifested muscle involvements initially and easily got fever during the course of disease.There were statistic differences between the two groups in above features ( P

PURPOSE: We investigated the effects of different stimulation frequencies on the inhibition of bladder overactivity by sacral neuromodulation (SNM) in pigs. METHODS: Implant-driven stimulators were used to stimulate the S3 spinal nerve in 13 pigs. Cystometry was performed by infusing normal saline (NS) or acetic acid (AA). SNM (pulse width, 210 µsec) at frequencies ranging from 5 to 50 Hz was conducted at the intensity threshold at which observable perianal and/or tail movement was induced. Multiple cystometrograms were performed to determine the effects of different frequencies on the micturition reflex. RESULTS: AA-induced bladder overactivity significantly reduced the bladder capacity (BC) to 34.4%±4.7% of the NS control level (354.4±35.9 mL) (P<0.05). During AA infusion, SNM at 5 Hz did not significantly change the BC (48.1%±6.9% of the NS control level) (P>0.05), but SNM at 15, 30, and 50 Hz significantly increased the BC to 54.5%±7.1%, 55.2%±6.5%, and 57.2%±6.1% of the NS control level (P<0.05), respectively. No significant differences were found among the results obtained using frequencies of 15, 30, and 50 Hz (P>0.05). CONCLUSIONS: This study demonstrated that 15 Hz was an appropriate frequency for SNM and that frequencies higher than 15 Hz did not lead to better surgical outcomes.
Acetic Acid ; Reflex ; Spinal Nerves ; Swine* ; Tail ; Urinary Bladder* ; Urinary Bladder, Overactive ; Urination