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Serum samples were tested for IgG antibodies using indirect immunofluorescence assays. We then analyzed associated risk factors. Serum samples were considered positive when reactive at a dilution of more than 1:320. Differences between groups and risk factors associated with exposure were statistically analyzed using Chi-square tests and the generalized linear model. 122 of 1,260 samples (9.68%) were positive for infection. The infection rate ranged from 0% to 30.43% and differed significantly among age groups ( < 0.01); infection rate in the 50-59 years group was significantly higher than that in other age groups. The seroprevalence of varied significantly among sites within the four provinces, and the infection rate of field workers was significantly higher than that of urban workers.
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In order to analyze the temporal distribution characteristics of human rabies in China and explore the incidence forecasting,R3.3.2 software were used to establish the optimal ARIMA model of monthly incidences from 2004 to 2015 in Chi-na.Then the monthly incidences from January to November 2016 were forecasted with the model and the prediction accuracy was evaluated.The annual incidences of human rabies in China were decreasing tendency since 2007,and the monthly incidence reached highly during August to October.The optimal model was ARIMA(2,1,1)(2,0,0)12and the mean absolute error (MASE)was 0.755.The mean relative error was 15.61% when predicting the incidences from January to November 2016.In conclusion,there exists seasonal variation for human rabies in China and ARIMA model can be applied for the short-term fore-casting.
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<p><b>OBJECTIVE</b>To compare the efficacy and safety of different analgesic and sedative treatments in children with mechanical ventilation in the pediatric intensive care unit (PICU).</p><p><b>METHODS</b>Eighty children with mechanical ventilation in the PICU who needed analgesic and sedative treatments were equally and randomly divided into midazolam group and remifentanil+midazolam group. The sedative and analgesic effects were assessed using the Ramsay Scale and the Face, Legs, Activity, Cry and Consolability (FLACC) Scale. The following indices were recorded for the two groups: vital signs, ventilator parameters, organ function, total doses of remifentanil and midazolam, duration of mechanical ventilation, length of PICU stay, PICU cost, and incidence of adverse events.</p><p><b>RESULTS</b>Satisfactory sedation was achieved in the two groups, but the remifentanil+midazolam group had a significantly shorter time to analgesia and sedation than the midazolam group. The remifentanil+midazolam group had a significantly higher percentage of patients with grade 3-4 on the Ramsay Scale and a significantly lower dose of midazolam than the midazolam group (P<0.05). Both groups showed decreases in heart rate (HR), mean arterial pressure (MAP), and spontaneous breathing frequency (RRs) after treatment. However, the remifentanil+midazolam group had significantly greater decreases in HR at 3-24 hours after treatment and MAP and RRs at 3-12 hours after treatment than the midazolam group (P<0.05). Compared with the midazolam group, the remifentanil+midazolam group had significantly higher ventilator tidal volume and transcutaneous oxygen saturation at 6 and 12 hours after treatment and significantly lower end-tidal carbon dioxide partial pressure at 6 and 12 hours after treatment (P<0.05). The remifentanil+midazolam group had significantly shorter time to awake, extubation time, duration of mechanical ventilation, and length of PICU stay than the midazolam group (P<0.05). There were no significant differences in PICU cost, incidence of adverse events, and hepatic and renal functions before and after treatment between the two groups (P>0.05). Both groups showed a significant decrease in fasting blood glucose level after treatment (P<0.05).</p><p><b>CONCLUSIONS</b>For children with mechanical ventilation in the PICU, remifentanil+midazolam treatment can rapidly achieve analgesia and sedation, improve the effect of mechanical ventilation, and reduce the dose of sedative compared with midazolam alone, and is well tolerated.</p>
Subject(s)
Female , Humans , Infant , Male , Analgesics , Therapeutic Uses , Blood Glucose , Hypnotics and Sedatives , Therapeutic Uses , Intensive Care Units, Pediatric , Midazolam , Therapeutic Uses , Piperidines , Therapeutic Uses , Respiration, Artificial摘要
Objective ToinvestigateanimportedcaseofZikavirusdiseaseinWenzhouCity,toexplorethesourceof infection,to analyse the problems during surveillance and diagnosis,and to provide evidence for prevention and control of Zikavirusdisease.Methods Byfieldinvestigation,medicalrecordsofthepatientwerecollectedandaface-to-face interview was conducted;blood,urine and saliva samples within 48 h were collected for RNA detection;assess the risk of diseasespreadingbymosquitosurveillanceandtakecontrolmeasures.Results Theonsetofthediseasewasonthepatient's way home from aboard on February 21st,2016.Before then,She lived in Paramaribo,the capital of Suriname in South America,which is an epidemic area of Zika virus.The patient had exposure history,with red,diffuse rash on her head,face, neck and limbs,and once was diagnosed as allergic eruption because of no fever.The two blood samples were both tested negative yet We detected urine and saliva samples showed positive.With the evidence above,the patient was finally diagnosed as an imported Zika virus case.The spreading risk of this case was low due to the low temperature.Conclusion there may be cases without fever or with blood sample tested RNA negative.As the weather gets warmer,missed diagnosis should be aware of,or the risk of spreading through mosquitos would increase.Therefore,in order to further improvement should lie in mosquito control and disease surveillance.
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Objective To analyze surveillance and survey data in Zhejiang Province,and to learn the distribution of the leptospirosis of the host animals and the crowd,in order to provide the basis for prevention and control.Methods Descriptive epidemiology and statistical analysis were conducted.The kidneys of mouse,frog,pig,and duck were collected for pathogen isolation.The serum samples of the clinic diagnosed patients and the host animals were tested by microscopic agglutination test or antibody.Results There were 1 31 cases of leptospirosis in Zhejiang Province from 2005 to 201 4, including 3 cases died.The incidence rate,mortality rate and fatality rate were 0. 025 2/1 00 000,0. 000 6/1 00 000,and 2. 29%,respectively. The cases were reported in all the areas except Zhoushan and Huzhou. The main endemic distributions were mountain areas of southern and central Zhejiang Province.The positive rate in blood of duck was highest and the main flora was icteroheamorrhagiae.The floras in patients'serum antibody were icteroheamorrhagiae and leptospira hebdomadis.The flora in patients was incongruous with the host animals.Conclusion The incidence of leptospirosis remains at low level in recent years in Zhejiang Province.The bacterial flora distribution was stable,but the outbreak of leptospirosis due to strain changing should be prevented.
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<p><b>OBJECTIVE</b>To study the correlation between serum procalcitonin (PCT) level and severity of infant muggy syndrome (IMS) and the predictive value of PCT in the development of multiple organ dysfunction syndrome (MODS) in children with IMS.</p><p><b>METHODS</b>Fifty children with IMS were classified into two groups according to the presence of MODS: MODS (n=29) and non-MODS (n=21). According to a 30-day follow-up result, they were classified into survival (n=36) and deceased groups (n=14). Vital signs, routine biological measurements (arterial blood gas, blood routine, CRP, liver and kidney functions, myocardial enzyme and so on) and the disease severity evaluated by the Pediatric Critical Illness Score (PCIS) within 24 hours of admission were recorded. Serum levels were measured using the semi-quantitative PCT-Q test within 24 hours of admission.</p><p><b>RESULTS</b>Forty-seven children (94%) had elevated serum PCT levels (≥ 0.5 ng/mL) at admission. There were lower PCIS scores, higher rates of MODS and higher levels of serum PCT in deceased patients than survivors (P<0.05). There was a significant negative correlation between serum PCT levels and PCIS scores (r=-0.84, P<0.05). Serum PCT levels in the MODS group were significantly higher than in the non-MODS group (P<0.01). Receiver operating characteristic curve showed that, if the cut-off point of serum PCT level was 10.6 ng/mL, the sensitivity and specificity of PCT were 79.3% and 90.5% respectively, in predicting MODS, with the area under the curve of 0.924 ( P<0.01).</p><p><b>CONCLUSIONS</b>Serum PCT level at admission is correlated with the severity of IMS and it may be an early predictive marker of MODS.</p>
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Female , Humans , Infant , Infant, Newborn , Male , Calcitonin , Blood , Calcitonin Gene-Related Peptide , Multiple Organ Failure , Blood , Diagnosis , Protein Precursors , Blood , Syndrome摘要
Objective Toinvestigatethestatusoftick-borneRickettsiaeinfectionsamongmurine-likeanimalsin differentareasofZhejiangprovince.Methods Liverandspleensamplesofmurine-likeanimalscapturedthroughnight trapping method were collected from Anji,Jinhua and Tiantai County according to their geographic locations and historical detection of Rickettsiae .Nest-PCR tests were used to determine the presence of the 16S rRNA genes of Anaplasma and Ehrlichia ,and the heat shock protein genes (groEL)of Rickettsiae (including typhus and spotted fever group)and Orientiainthesesamples.Results Atotalof851murine-likeanimalsbelongingto14specieswerecaptured.The predominant species were Rattus confucianus (30.32%),Apodemus agrarius (18.80%) and Thallomys paedulcus (1 1.75%)and they were significantly different among three areas (P<0.05 ).48 Rickettsia positive were found in 562 tested samples with the positive rate of 8.54%,among which the percentage of Anaplasma,typhus group Rickettsia, Orientia,Ehrlichia and spotted fever group Rickettsia were 3.38%,1.78%,1.78%,1.07% and 0.53% respectively. The positive rates of Anaplasma in Jindong (4.76%)and Anji (4.27%)were significantly higher than that in Tiantai (P<0.05 )while the spotted fever group Rickettsia were found only in Tiantai County.Moreover,Rattus confucianus-the predominant species of Zhejiang Province-had the highest infection rate of tick-borne Rickettsiae up to 14.97%.Co-infections with several Rickettsiae were existed among the same species.Conclusion Rickettsiae infections exist widely among different areas of Zhejiang province and the positive rates are significantly different among species.
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<p><b>OBJECTIVE</b>To study the effect of hyperoxia exposure on the expression of p53 and proliferating cell nuclear antigen (PCNA) in fetal rat lung fibroblasts (LFs).</p><p><b>METHODS</b>Primary rat embryonic LFs were cultured in vitro. LFs grew to subconfluence and then were randomly divided into air and hyperoxia exposure (95% O₂, 5% CO₂) groups. After LFs were cultured for 12 and 24 hours, the proliferation was analyzed by MTT. p53 mRNA level was detected by semi-quantitative reverse transcription polymerase chain reaction (RT-PCR). p53 and PCNA protein levels were determined by Western blot.</p><p><b>RESULTS</b>After 12 and 24 hours of culture the growth inhibition rate of LFs was 8% and 23% respectively in the hyperoxia exposure group. p53 mRNA and protein levels increased significantly (P<0.01) in the hyperoxia exposure group after 12 and 24 hours of culture compared with the air exposure group. Hyperoxia exposure decreased PCNA expression after 24 hours of culture (P<0.01).</p><p><b>CONCLUSIONS</b>Hyperoxia exposure increases p53 level and decreases PCNA expression, resulting in inhibitions of LFs proliferation and DNA repair.</p>
Subject(s)
Animals , Female , Rats , Cell Proliferation , Fibroblasts , Metabolism , Hyperoxia , Metabolism , Pathology , Lung , Cell Biology , Metabolism , Proliferating Cell Nuclear Antigen , RNA, Messenger , Rats, Sprague-Dawley , Tumor Suppressor Protein p53 , Genetics摘要
<p><b>OBJECTIVE</b>To investigate the clinical features of invasive fungal infections (IFI) in the pediatric intensive care unit (PICU) and, to provide a basis for the effective prevention and treatment of IFI.</p><p><b>METHODS</b>Retrospective analysis was performed on the clinical features and treatment outcomes of 38 children with IFI who were admitted to the PICU of Wuhan Children's Hospital between January 2009 and August 2012.</p><p><b>RESULTS</b>Pulmonary fungal infection (89%) was the most common among the 38 cases. Before diagnosis of IFI, all patients had severe underlying diseases and received several broad-spectrum antibiotics, including carbapenems, which were used in 95% of cases; 47% of all cases had been treated with corticosteroids systemically; all patients had received invasive operations, and 47% of them had undergone endotracheal intubation and mechanical ventilation. None of these cases had either typical clinical symptoms and signs or specific imaging findings. Fifty-six strains of fungi were isolated, with Candida albicans (41%), Aspergilli (25%), and Mucor (20%) being the most common ones. All patients received timely antifungal therapies, 15 cases were cured and 16 cases showed improvements, with a response rate of 82%, and the rate of adverse events was 16%.</p><p><b>CONCLUSIONS</b>In the PICU, the respiratory tract is the most common site of IFI infection, and Candida albicans is the leading pathogen. Severe underlying diseases, use of broad-spectrum antibiotics and corticosteroids, and invasive operations are the main risk factors for IFI in the PICU. Early diagnosis and timely treatment with high-performance antifungal drugs can improve the prognosis in children with IFI.</p>
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Female , Humans , Infant , Male , Intensive Care Units, Pediatric , Mycoses , Diagnosis , Drug Therapy , Retrospective Studies摘要
@#BACKGROUND: With beta-lactam drugs and immunosuppressants widely used, the infection caused byAcinetobacter baumannii (Ab) has become more and more serious with multidrug resistant Acinetobacter baumannii (MDRAb) emerging and worsening rapidly. Compared with other patients, the incidence and multidrug resistance of MDRAb are higher in children in pediatric intensive care unit (PICU) because of immune deficiency, severe basic diseases, prolonged hospitalization and invasive operations. Hence it is significant to study the epidemiology and changes of antibacterial susceptibility in order to reduce the incidence of MDRAb in children. METHODS: A total 115 patients with MDRAb pneumonia and 45 patients with negative MDRAb (NMDRAb) pneumonia who had been treated from January 2009 to August 2011 were studied retrospectively at the PICU of Wuhan Children's Hospital. Clinical data were analyzed with univariate and multivariate Logistic regression. RESULTS: In 176 clinical strains ofAcinetobacter baumannii isolated, there were 128 strains of MDRAb, accounting for 72.73%. Drug susceptibility tests showed that the resistance rates of β-lactam antibiotics were more than 70% except for cefoperazone sulbactam. The rates to carbapenems were higher than 90%. They were significantly higher than those of NMDRAb. Amikacin, levofloxacin, ciprofloxacin and minocycline had the lowest drug-resistance rates (<20%). Multivariate Logistic regression revealed that ICU stay, the time of mechanical ventilation, anemia, hypoproteinemia and the use of carbapenems were independent risk factors for MDRAb pneumonia. CONCLUSIONS: MDRAb is an important opportunistic pathogen to pneumonia in PICU, and its drug-resistance is severe. It increases significantly the mortality of patients. It is important to take the effective prevention measures for controlling it.
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<p><b>OBJECTIVE</b>To study the comprehensive monitoring mechanism of mouse and the effect of hemorrhagic fever with renal syndrome (HFRS) vaccine in the high prevalence areas of natural focus infectious disease of Zhejiang province in 1994 - 2010.</p><p><b>METHODS</b>The night trapping method was used to monitor the population proportion, density and the rate of hantavirus (HV) carriers in mice in Xikou township Longyou county in August and September from 1994 to 2010. The healthy residents in Xikou township aged 16 to 60 years were recruited. The subjects were randomly selected as vaccination group and control group according to age, sex, occupational distribution (10 178 in intervention group and 16 159 in control group). Intervention group was given purified and inactivated vaccine from suckling mouse brain, while the control group received no intervention. The prevention effect was evaluated by protective rate of vaccine.</p><p><b>RESULTS</b>The mouse population was stable in the sixteen years and the apodemus agrarius was the main type (76.5% (564/737)). The average density of mouse was 4.73% (1170/24 727). The average rate of virus carrier of mouse was 3.87% (41/1033). In 1994 - 1995, the density of mouse was 22.82% (186/815) and the rate of virus carrier was 7.0% (10/143). In 2009 - 2010, the density of mouse decreased to 2.75% (119/4330) and the rate of virus carrier was 5.5% (13/237). The average antibody positive rate of mouse from 2005 to 2010 was 4.8% (35/728) and the rate was 4.4% (6/138), 0.0% (0/113), 11.8% (16/136), 1.0% (1/104), 3.7% (4/109) and 6.3% (8/128) in each year (P < 0.01). The protective rate of HFRS vaccine was 96.2% (1 case in intervention group and 41 cases in control group).</p><p><b>CONCLUSION</b>The density of mouse decreased significantly in Zhejiang province. The rate of virus carrier of mouse is stable. The vaccine is effective.</p>
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Adolescent , Adult , Animals , Female , Humans , Male , Middle Aged , Young Adult , China , Epidemiology , Disease Reservoirs , Environmental Monitoring , Orthohantavirus , Hemorrhagic Fever with Renal Syndrome , Epidemiology , Muridae , Vaccination , Viral Vaccines , Therapeutic Uses摘要
@#BACKGROUND: With mechanical ventilation widely used in intensive care unit, the ventilator associated pneumonia (VAP) has become a common and serious complication in critically ill patients. Compared with adults, the incidence of VAP and the mortality are higher in children in pediatric intensive care unit (PICU) because of immune deficiency, severe basic diseases, and increased use of artificial airway or mechanical ventilation. Hence it is of significance to study the epidemiology and changes of antibacterial susceptibility in order to reduce the incidence and mortality of VAP in children. METHODS: From January 2008 to June 2010, 2758 children were treated in PICU of Wuhan Children's Hospital. Among them, 171 received mechanical ventilation over 48 hours in PICU, and 46 developed VAP. The distribution and drug-resistance pattern of the pathogenic bacteria isolated from lower respiratory tract aspirations were analyzed. RESULTS: A total of 119 pathogenic microbial strains were isolated. Gram-negative bacilli (G-) were the most (65.55%), followed by fungi (21.01%) and gram-positive cocci (G+, 13.45%). Among them, the most common pathogens were Acinetobacter baummannii, Escherichia coli, Klebsiella pneumoniae, candida albicans and coagulase-negative staphylococci. Antibiotic susceptibility tests indicated that the multiple drug-resistances of G- and G+ to antibiotics were serious. Most of G- was sensitive to ciprofloxacin, amikacin, imipenem, meropenem, cefoperazone-sulbactam and piperacillin-tazobactam. The susceptibility of G+ to vancomycin, teicoplanin and linezolid were 100%. Fungi were almost sensitive to all the antifungal agents. The primary pathogens of VAP were G-, and their multiple drug-resistances were serious. CONCLUSION: In clinical practice we should choose the most sensitive drug for VAP according to pathogenic test.
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Objective To study the integrated monitoring program regarding mouse and plague, hemorrhagic fever of renal syndrome(HFRS)and leptospirosis. Methods Integrated monitoring plan was used. A designated office coordinated 5 departments' actions within the Zhejiang Provincial Center for Disease Control and Prevention(CDC). Cage-trapping method was conducted to monitor the density of mice from June to October, respectively. Results Lishui municipal CDC had finished the integrated monitoring program on mouse and mouse-borne disease while the Longyou CDC had finished the field investigation, using the integrated monitoring program.Specimens were sent to provincial CDC. The integrated monitoring program needed more number of personnel and better coordination. Lishui reported 3 leptospirosis cases and 58 HFRS cases in 2009,with the incidence rates as 0.13 and 2.44 per 100 000, respectively. Longyou reported 2 leptospirosis case and 1 HFRS cases in 2009, with the incidence rates as 0.49 and 0.25 per 100 000, respectively.Lishui and Longyou had no plague case. Lishui caught 91 mice in 2009 and the density was 4.17%.Longyou caught 37 mice in 2009, with the density as 1.18 percent. Most mice caught from Lishui were Apodemus agrarius and the next was Mus musculus. In Longyou the Rattus tanezumi ranked the first, followed by Apodemus agrarius. The positive rate of HFRS antigen in Lishui and Longyou were 10.42% and 4.59% respectively. The positive rate of HFRS antibody in Longyou was 3.70%. The culture positive rate of leptospirosis in mouse renal of Lishui and Longyou were 0 and 0.98%respectively. The culture positive rate of leptospirosis in pig renal, duck renal, frog renal and cattle urine of Longyou was 0. The culture positive rate of leptospirosis in duck blood of Longyou was 80%.Conclusion The integrated monitoring program on mouse and mouse-borne disease seemed to be feasible and could promote the integrated surveillance and control program on mouse and mouse-borne diseases in China.
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Objective To investigate the seroprevalence of tick-borne diseases in humans and domestic animals from rural areas of Zhejiang province. Methods Anji county, Jindong district and Tiantai county were selected for samples collection according to their geographic locations and historical prevalence of tick-borne diseases. Blood samples of humans and domestic animals were collected in the three sites. An indirect immuno-fluorescent antibody test was used to determine the presence of IgG antibodies of Rickettsiae heilongjiangii, Orientia tsutsugamushi, R. typhi, Anaplasma phagocytos, Ehrlichia chaffeensis, Bartonella, R. hainan and Coxiella burnetii in these samples.Results Six hundred and eighty-three blood samples including 579 from humans and 104 from domestic animals(53 from cattles and 51 from sheep)were collected from the three sites. Antibody positive rates of Orientia tsutsugamushi, R. typhi, Ehrlichia chaffeensis and Coxiella burnetii were significantly different between these sites. IgG from all the 8 pathogens were detected in samples from humans. It was found that the sero-prevalence rates of R. typhi, Bartonella and C. burnetii(20.7%,10.9%, 5.5%)of adults were higher than those of other Rickettsiae under investigation. The seroprevalence of R. typhi increased along with age. IgG from the 7 pathogens were detected in samples from domestic animals except for Anaplasma phagocytos. The sero-prevalence rates of R. typhi, Bartonella and R. hainan(69.2%, 51.0%, 22.1%)of adults were higher than those of other Rickettsiae investigated. Conclusion Tick-borne diseases did spread widely in humans and domestic animals from different rural areas of Zhejiang province. The sero-prevalence rates of R. typhi,B. henselae, R. hainan and C. burnetii were higher than that from other pathogens.
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Objective To develop the method of 16S rRNA gene clone library for tick bacterial flora analysis, and to analyze the detection effective of pathogens in tick and capacity of bacterial flora diversity. Methods Primers were designed according to the specific gene of Borrelia burgdorferi, Bartonella henselae, Anaplasma phagocytophilum, Ehrlichia chaffeensis and templates were choosen by positive PCR result to amplify the DNA extracted from the ticks. One set of primers targeting 16S rRNA gene conserved region were chosen to amplify certain fragments, DNA extraction, PCR reaction, cloning and sequencing. Nucleotide sequences were compared with GenBank database. Calculated Coverage values of clone library and Shannon-Wiener diversity index. Results Sixteen defined genus-or species-bacteria were detected in 103 valid sequences. Eight species were edge type (Clone No. > 5). Three kinds of pathogens were identified (Borrelia burgdorferi, Bartonella henselae and Rickettsia sp). Three kinds of pathogens were not edge type(Clone No. < 5). Coverage value was 96.11%, and Shannon-Wiener index was 2.40. Analysis results of cloning sequence showed that tick-parasitic bacteria mainly were α and γ deformation mycetes which accounted for 56.25% (9/16). Conclusions The 16S rRNA gene sequences technology could make relative quantitative of bacterial flora, and detect many kinds of pathogens in tick. It's a good method for detection of pathogens and bacterial flora analysis.
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Objective To investigate the risk factors of pulmonary fungal infection in intensive care unit(ICU),and discuss the strategy of prevention and treatment.Methods Forty children with pulmonary fungal infection in ICU of Wuhan Children's Hospital from Jan.2003 to Jan.2007 were analyzed retrospectively,including primarily diseases,application of antibiotics,adrenal cortical hormone and virulence operation,therapy and turnover.Results All children were accepted the therapies of broad spectrum antibiotics and glucocorticoids for long time before definite diagnosis of pulmonary fungal infection.Seventy-five percent children were received invasive operations or therapies.Their average time of stayed in hospital was 37.8 d.The clinical symptoms and imaging examinations were untypical.Blastomyces albicans was the main pathogen.After the antifungal agents and supportive treatment used in time,35 cases(87.5%) were cured and 5 cases(12.5%) died.Conclusions The major risk factors of children pulmonary fungal infection are long-time use of broad spectrum antibiotics and glucocorticoids.The pulmonary fungal infection can decrease by rational use of broad spectrum antibiotics and glucocorticoids,decreasing the unnecessary invasive operations,strengthening the supportive therapies of micro-ecosystem,and applying the antifungal agents in time.
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0.05).Conclusions The expression of PBMC IP-10 mRNA increases in KD.IP-10 may participate in the pathogenesis of KD and CAL in KD.Perhaps the inhibition to the expression of PBMC IP-10 mRNA is one of the mechanisms of IVIG.
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0.05).But after the treatment,there were significant increases in pa(O2),SaO2 and PCIS(Pa0.05).Conclusions Early application of hyperoxia liquid could decrease multiple organ anoxia and the damage of lipid peroxidation.It has obviously protective effects on multiple organ damage during ischemic reperfusion in infants with muggy syndrome.