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Objective To investigate the clinical effect of intratympanic injection of dexamethasone in treatment of sudden deafness in different time windows.Methods 60 patients (60 ears) with sudden deafness were selected.Sixty patients were divided into control group and observation group according to the random number table method,30 cases (30 ears) in the control group and 30 cases (30 ears) in the observation group.The two groups were given systemic basic therapy, intravenous vinpocetine, alprostadil improve microcirculation, while hyperbaric oxygen therapy,12 days for a course of treatment, treatment for 2 courses.In the control group, dexamethasone was intravenously administered for 12 days.From the 7th day, dexamethasone was injected into the tympanic cavity and injected once every other day.The observation group was treated with dexamethasone at the same time.Injection of dexamethasone, treatment method and time were the same as the control group.At the end of the treatment, the clinical curative effect of the two groups was compared.The average hearing thresholds of the two groups were observed before and after treatment.The dizziness, tinnitus and hearing recovery time of the two groups were observed.Results The total effective rate was 96.67% in the observation group and 93.33% in the control group, the difference was not statistically significant (x2 =0.97,P> 0.05).After treatment, the average hearing threshold of the two groups was significantly improved (t=7.69,8.23,all P<0.05),the average hearing threshold of the observation group was higher than that of the control group, the average hearing threshold before and after treatment had statistically significant differences (t=2.34,2.67,all P<0.05).In the observation group, dizziness, tinnitus and hearing recovery time were shorter than those in the control group (t=3.32,3.14,3.67,all P<0.05).Conclusion The effect of dexamethasone combined with systemic treatment of sudden deafness in patients compared with intratympanic injection of dexamethasone after intravenous administration of dexamethasone is not significantly different, but the improvement of hearing threshold after treatment compared with the latter is obvious, and the average time to disappear symptoms is shorter than the latter, and therefore worthy of clinical promotion.
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Objective To compare test results of antinuclear antibodies (ANA ) using different brands kit and methodology . Methods 180 cases who accepted serum ANA detection in hospital from April to December 2012 were choosen ,in which 145 cases of positive serum and 35 cases of healthy control .The 180 cases were tested for ANAs by YHLO ANA-17S ,EUROIMMUN ANA profile 3 and ANA IIFA kits at the same time ,and all parameters about ANA decetion were compared such as sensitivity ,specifici-ty ,positive predictive value ,negative predictive value and the coincidence rate between the two kinds of kits .Results The sensitivi-ty of YHLO ANA-17S ,EUROIMMUN ANA profile 3 and EUROIMMUN ANA IIFA was 94 .8% ,90 .4% ,95 .6% ;specificity was 88 .9% ,91 .1% ,93 .3% ;positive predictive value was 96 .2% ,96 .8% ,97 .7% ;negative predictive value was 85 .1% ,75 .9% , 87 .5% ;the coincidence rate between the EUROIMMUN ANA profile 3 and EUROIMMUN ANA IIFA was 84 .0% (P>0 .05) ,be-tween the YHLO ANA-17S and EUROIMMUN ANA IIFA was 80 .0% (P>0 .05) ,between theYHLO ANA-17S and EUROIM-MUN ANA profile 3 was 93 .0% (P> 0 .05) .Conclusion Three kits for detecting ANAs have good sensitivity and specificity , which can be used for autoimmune disease detection .Laboratory tests result should be combined with clinical symptoms according to the diagnostic criteria to make the final diagnosis .
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Objective To investigate the incidence of sub-health fatigue among medical workers exposing to radioactive rays, and to observe the therapeutic effect of Bushen Jianpi recipe on sub-health fatigue. Methods An investigation was carried out among 1 056 medical workers exposing to radioactive rays which were from the medical and sanitary institutions of Guangzhou city. Sixty cases subjecting to the inclusion criteria were sampled from the investigated population by epidemiological methods for the randomized controlled trial. The subjects were evenly randomized into treatment group and control group. Both groups received health education and health-promoting lifestyle, and the treatment group was given self-prescribed Bushen Jianpi recipe additionally. The treatment lasted for 4 weeks. The scores of Multidimensional Fatigue Inventory ( MFI-20) and Sub-health Measurement Scale Version 1.0 ( SHMS V1.0) were observed before and after treatment, and the therapeutic effect was evaluated after treatment. Results ( 1) We got 976 effective questionnaires, and the effective response rate was 92.4%. Among the admitted 976 workers, the incidence of sub-health state was 66.8% (652/976) and that of sub-health fatigue is 31.4% ( 205/976). ( 2) The total effective rate was 80.0% in the treatment group and was 36.7% in the control group, the difference being significant ( P<0.01). ( 3) After treatment, the scores of MFI-20 and SHMS V1.0 were decreased in the treatmeat group, and fatigue symptom scores were decreased in the control group ( P<0.05 or P<0.01) , the decrease in the treatment group being superior to that in the control group ( P<0.05 or P<0.01). Conclusion The incidence of sub-health fatigue is popular in the medical workers exposing to radioactive rays, and Bushen Jianpi recipe has an effect on improving the sub-health fatigue.
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Objective To propose a novel method for image segmentation based on"catalyst" segmentation method.Methods Feeler image was imported into segmentation algorithm as the"catalyst",and whether the candidate nodes should stop segmentation or not was decided according to whether the catalyst appeared in the segmentation result.Results Image segmentation based on "catalyst" segmentation method could judge the right class number for segmented images.Conclusions Primary experiments shows that "catalyst" segmentation method is simple and useful.
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It is an urgent task to purify drinking water and treat industrial wastewater at present.In this paper,the operating principle of the electro -hydraulic impulse apparatus and its sterilization effect is introduced,which is effective in purifying drinking water and treating wastewater.Based on the laboratorial data and theory analysis,method of parameter selection for the apparatus is also presented.