ABSTRACT
Objective:To investigate the clinical efficacy of mechanical solitaire AB stents thrombectomy combined with intra-arterial thrombolysis in the treatment of patient with acute ischemic stroke.Methods:Fifteen patients with acute ischemic stroke admitted into our hospital from August 2014 to August 2016 were treated with mechanical thrombectomy with solitaire AB stents plus intra-arterial thrombolysis.The National Institutes of Health Stroke Scale score (NIHSS) of all patients were evaluated before and after treatment to compare the clinical efficacy.The prognosis ofpatients between two groups were compared via evaluating modified Rankin score (mRS)and gelasijia coma score (GCS).Results:After mechanical thrombectomy with solitaire AB stents plus intra-arterial thrombolysis treatment,14 patients achieved complete or part recanalization,and 1 patient was terminated treatment due to vital signs instability,and the rate ofrecanalization was 93.3％.The NIHSS score of patients before treatment was 12.93± 4.25,which was much higher than that after treatment (4.33± 1.45,P＜0.05).After follow-up by 3 months,the good mRS scores were obtained in all 18 patients,including 2 patients with mRS score of 2,5 patients with 1,and 8 patients with 0.Additionally,there was no patient with re-obstruction during follow-up period.Conclusion:Mechanical thrombectomy with solitaire AB stents combined with intra-arterial thrombolysis had a good capability and safety in the treatment of patients with acute ischemic stroke.
ABSTRACT
Objective@#To observe the dynamics of antibody response in great gerbils infected with Yersinia pestis in experiment.@*Method@#A total of 211 great gerbils were captured in the southern margin of plague natural focus of Junggar Basin of the Xinjiang Uygur Autonomous Region in 2011. Among them, there were 167 great gerbils without infection of Y. pestis and 44 great gerbils infected by Y.pestis. Y.pestis No. 2504 was employed for this experimental strain, which was strong toxic strain with negativity in the reduction experiment of nitrate. 35 great gerbils without the infection of Y. pestis were divided randomly and averagely into 7 groups including 6 experimental groups and 1 control group. Great gerbils in the 1st to 6th experimental groups were exposed first with 1 × 106-1 × 1011 CFU/ml of bacterial fluid with 10 times of gradient dilution; groin areas of great gerbils in the control group were injected subcutaneously with physiological saline; and the amount of infection was all 1 ml. 17 great gerbils infected with Y. pestis and the first detection of F1-antibody titer in 1∶256-1∶4 096 were grouped according to F1-antibody titer: group 1∶4 096 (n=4), group 1∶2 048 (n=4), group 1∶1 024 (n=3), group 1∶512 (n=3) and group 1∶256 (n=3); and blood in caudal regions was collected in asepsis for the detection of F1-antibody, with a total of 5 times. 9 great gerbils which were selected from the remaining great gerbils infected with Y. pestis and detected F1-antibody negative 2 times were exposed 1×106 CFU/ml of bacterial fluid for the second infection, with the amount of infection being 1 ml. Blood in caudal regions of great gerbils after the first and second infection were collected for the detection of plague F1-antibody on the 3rd, 5th, 7th, 15th, 30th, 60th, 90th and 120th day after infection. Declined regression models for great gerbils' antibodies were established with unary linear regression equation; declined change diagrams for the antibodies were drawn to observe the declined F1-antibody after great gerbils were exposed to Y. pestis.@*Results@#In great gerbils with the first infection of Y. pestis, antibodies were detected in the 1 × 106-1 × 108 CFU/ml of group on the 30th, 15th and 15th day, respectively; the positive rates of antibody were 1/4, 3/4 and 4/5, respectively; the group 1×107 and 1× 108 CFU/ml reached to the highest antibody titer with 1∶256 on the 120th day; antibodies were revealed in the group 1×109, 1×1010 and 1×1011 CFU/ml from the 5th to 7th day when the seroconversion of all antibodies was observed; group 1×1011 CFU/ml reached to the highest antibody titer on the 120th day with 1∶4 096. In the great gerbils with the second exposure to Y.pestis, positive antibodies were detected on the 3rd day with the positive rate being 2/9; and the highest antibody titer with 1∶2 048 was noted on the 90th day. Unary linear regression equation of declined F1 antibody of great gerbils was y=0.045x- 0.321 (F=115.40, P< 0.001), and the shortest duration for F1-antibody titer declining from 1∶4 096 to 0 was 140 d and the longest duration 200 d.@*Conclusion@#Great gerbils infected with the high concentration of Y. pestis fluid show shorter duration in producing F1-antibody, the antibody positive rate is also higher, and the highest antibody titer can reach 1∶4 096. The great gerbils could hold the plague F1 antibodies for a long time which was about 140 to 200 days from the highest titer.
ABSTRACT
Objective:TTo observe the clinical efficacy of noninvasive positive pressure ventilation(NIPPV)for AECOPD with respiratory failure and disturbance of consciousness.Methods:A total of 58 AECOPD patients with respiratory failure and consciousness in our hospital from 2011 July to August 2015 were randomly divided into NIPPV group and control group. The control group was received conventional therapy, and NIPPV was added to the NIPPV group. The heart rate(HR), respiratory rate(RR), Glasgow coma score(GCS) and blood gas analysis of patients before and after 24 h, 72 h of treatment, and the adverse reactions in NIPPV group were observed.Results: The PaCO2, RR, HR at 24 h and 72 h were significantly lower and PaO2 and GCS were significantly increased in NIPPV group. Compared to the control group, PaO2, PaCO2, HR and GCS after 24 h and 72 h were different (t=11.29,t=9.19,t=9.21,t=11.23,t=10.30,t=7.28, t=10.34,t=6.69;P0.05). Some patients in NIPPV group had initial discomfort, facial skin hyperemia erosion, mild gastrointestinal discomfort and fear, which were improved after symptomatic treatment.Conclusion: NIPPV treatment for AECOPD patients with respiratory failure and disturbance of consciousness which can effectively correct respiratory acidosis and CO2 retention. The spontaneous breathing and arterial oxygen level of patient can be gradually recovered, which are better than the conventional treatment.
ABSTRACT
<p><b>OBJECTIVE</b>To explore the spatial and temporal distributions of animal plague in Junggar Basin natural plague focus.</p><p><b>METHODS</b>Data regarding plague antibody (F1) in serum of Great Gerbil (Rhombomys opimus, R. opimus) which were collected from 2005 to 2012 in Junggar Basin and analyzed. The changing rates on the positivity of F1 that appeared spatially and temporally were also analyzed.</p><p><b>RESULTS</b>A total of 4 825 R. opimus serum samples were collected in 13 administrative regions in Junggar Basin.</p><p><b>RESULTS</b>showed that plague R. opimus existed in two areas-Gurbantonggut desert in the eastern-center and the clay desert of western Junggar Basin. However, in these two areas, the intensity of animal plague prevalence was different. In the former region where Yesinia pestis positive serum was detected from R. opimus, the detected rate of R. opimus was 8.39%. However, in the latter areas, the average positive rate was 1.56%. The changing trends of R. opimus plague prevalence were also varied annually. In the western Junggar Basin, the trend showed a slowly downward profile. The serum positive rate of R. opimus for Yesinia pestis decreased, from 7.59% in 2005 to 0.61% in 2008, and appeared as a resting state that none of the positive sample could be found since then. However, in the eastern-center Junggar Basin area-also named as Gurbantonggut desert which had been divided into 3 segments(western, central and eastern, according to related geographical characteristics), the changing trends of animal plague seemed quite complex. In the western segment, the animal plague had two epidemic peaks-in 2006 and 2010, with the interval of 4 years, with the higher peak of all the three geographic segments as 45.65% in 2010 and the positive serum of R. opimus for plague could be detected each year from 2006 to 2012. However, there were 3 epidemic peaks in the same period in the central and eastern segments. In the central segment, the peaks appeared in 2006, 2009 and 2011, with the intervals as 2.5 years and the average positive rate 8.92% was seen the lowest in Gurbantonggut desert. In the eastern segment, the first 2 peaks appeared the same season as in the central segment, but the third peak appeared in 2012, with the peak interval as 3 years. The positive rate of R. opimus for plague was also different in seasons, with the positive rate higher in autumn than in spring. These findings showed that the animal plague could be continuously prevalent from spring to autumn in the natural foci of plague in the Junggar Basin.</p><p><b>CONCLUSION</b>Both geographical and temporal fluctuations of animal plague existed in the natural foci of Junggar Basin which was also named as geographical heterogeneity. Consequently, animal plague could be divided into two areas-the clay plains desert in the western and the Gurbantonggut desert in the eastern-center Junggar Basin.</p>
Subject(s)
Animals , Gerbillinae , Plague , Epidemiology , Time , Yersinia pestisABSTRACT
<p><b>OBJECTIVE</b>In order to understand the distribution of the host animals in Junggar Basin, this study intended to map the spatial distribution and identifying the risk of Rhombomys opimus in the framework of ecological niche theory based on the "3S" technology.</p><p><b>METHODS</b>Data on Rhombomys opimus was obtained through a series of field surveys. Environmental variables were achieved through data from Remote Sensing. Maxent modeling was built to map the potential distribution of Rhombomys opimus, with its risks identified.</p><p><b>RESULTS</b>The prediction model showed ideal accuracy, with the AUC value as 0.968. Probability of Maximum Youden Index was defined as the threshold being used. The sensitivity and specificity showed as 91.4% and 63.3%, respectively. The accuracy was 73.8%, and the Kappa coefficient was 0.495. The positive predictive value was 59.7%. The negative predictive value was 92.6%. The predicted high risk area was 37 304 km2, with 6.2% in the whole area, distributed in 18 counties, including Changji Hui Autonomous Prefecture, Urumqi, Karamay and so on. The number of people under high risk would come about 120 000, scattering in the areas of 261 square kilometers.</p><p><b>CONCLUSION</b>It was feasible to predict the potential distribution of Rhombomys opimus based on the ecological niche theory as well as environmental variables derived from data through remote sensing. More specific high-risk areas could be identified under this technique so as to guide the monitoring programs.</p>
ABSTRACT
Purpose The clinical advantages of ~(131)I SPECT/CT fusion imaging over planar imaging of differentiated thyroid cancer(DTC) were studied. Materials and Methods 97 DTC accepting ~(131)I therapy after thyroid surgery underwent planar ~(131)I whole-body scan(WBS) and SPECT/CT fusion imaging. The diagnostic performance of ~(131)I-WBS and SPECT/CT were comparatively analyzed. Results The patients had totally 251~(131)I-WBS and 102 SPECT/CT imaging. In comparison to WBS, SPECT/CT fusion images were proven of a few advantages, such as: (1)Fused and 3D images being obtained by SPECT/CT;(2)finding more focus;(3)correctly confirming the position of lesions;(4)locating some ~(131)I negative lesions;and (5)distinguishing physiological or polluted activity. Conclusion ~(131)I SPECT/CT fusion imaging could clearly reveal the shape、sizes、biological status and relation to surrounding tissues, thus providing additional information to ~(131)I-WBS in DTC.