3.Changing patterns and antibiotic resistance of Staphylococcus aureus in a pediatric clinic from 2003 to 2012 year
Fang DONG ; Wenqi SONG ; Yan WANG
Chinese Journal of Applied Clinical Pediatrics 2014;29(10):747-750
Objective To investigate the changing patterns of Staphylococcus aureus (SA) and its resistance from a paediatric clinic in Beijing Children's Hospital Affiliated to Capital University of Medical Sciences.Methods SA isolated from hospitalized patients in Beijing Children's Hospital Affiliated to Capital University of Medical Sciences from Jan.2003 to Dec.2012 were analyzed.Antimierobial susceptibility was determined by disk diffusion method and Phoenix 100 microbiological system.Results were analyzed according to the 2012 guidelines of Clinical and Laboratory Standard Institute.WHONET 5.6 software was used to analyze the data.Results The clinical isolates of SA from inpatient were 2 843.The positive rates of SA were 10.0%,8.7%,9.0%,11.6%,12.7%,11.7%,10.5%,10.8%,11.9% and 11.7% form 2003 to 2012,respectively.The positive rate of Methicillin-resistant Staphylococcus aureus (MRSA) from inpatients was 10.9%.The positive rates of MRSA were 3.1%,5.4%,6.4%,4.1%,6.0%,10.6%,11.2%,12.7%,14.1% aid 20.1% form 2003 to 2012,respectively.The resistant rate of Methicillin-susceptible Staphylococcus aueus and MRSA to Penicillin were 91.4% and 100.0%,Oxacillin were 0 and 100.0%,Cefuroxime were 0.5% and 87.7%,Ceftriaxone were 0.1% and 90.3%,Amoxicillin-clavulanic acid were 0.9% and 86.7%,Erythromycin were 72.4% and 92.2%,Clindamycin were 50.6% and 80.3%,Ciprofloxacin were 2.2% and 30.1%,Trimethoprim-sulfamthhoxazol were 12.2% and 13.9%.Vancomycin-intermediate and Vancormycin-resistant Staphylococcus aureus were not found.Conclusions The prevalence of MRSA is increasing in paediatric inpatients.And MRSA isolates exhibit multidrug resistance.The sequential surveillance about SA is very important for guiding rational antimicrobial therapy and effective control of infections in paediatric patients.
4.Management and Control of Hospital Infection in Operating Room
Xin DONG ; Feng SONG ; Yan WANG
Chinese Journal of Nosocomiology 2005;0(11):-
OBJECTIVE To explore the canonical prevention and management method to improve the control quality safety of hospital infection in operating room,and the medical care quality.METHODS The key points included infection institution,nosocomial control,operating room management,effective infection disinfection,isolation and other measures.RESULTS According to canonical scientific management available to quality safety of infection prevention,it could prevent infection in operating room.CONCLUSIONS In order to prevent nosocomial infection the accomplishment of effective disinfection and isolation measures during contaminated operation in hospital operating room is an important guarantee to the medical care quality.
5.Analysis of etiology and antibiotic resistance of clinical bacterial isolates in pediatric patients with otitis media
Fang DONG ; Wenqi SONG ; Yan WANG
Journal of Clinical Pediatrics 2013;(7):641-644
Objectives To analyze the main pathogen of otitis media and antibiotics resistance of clinical bacterial isolates in pediatric patients. Methods Secretion specimens from 164 cases of otitis media were cultured. Antimicrobial susceptibility was determined. Results were analyzed according to the guidelines of Clinical and Laboratory Standard In-stitute (2012). WHONET 5.6 software was used to analyse the data. Results Pathogens were cultivated in 121 ear secretion specimens from 164 cases of otitis media and the positive rate was 73.8%. There were 9 cases of mixed bacterial infection, accounting for 5.5%. 130 strains of pathogens were isolated from middle ear secretion and the main pathogens were bacteria (83.1%) and fungus (16.9%). Among bacteria, 50 (46.3%) were Streptococcus pneumoniae and 21 (19.4%) Staphylococcus aureus. Among fungus, 17 (77.3%) were Candida spp and 5 (22.7%) Aspergillus spp. By age, the rates of infection caused by Streptococcus pneumoniae in infancy and early childhood were markedly higher than those in preschool and school-age, respectively (P<0.05). The no-susceptibility rate of Streptococcus pneumoniae to penicillin was 76.0%. The prevalence of meticillin-resistant Staphylococcus aureus (MRSA) was 14.3%. Conclusions Proper treatment depends on the secretion culture and drug sensitive test due to various pathogens of otitis media.
8.Myocardial ischemia analysis based on electrocardiogram QRS complex in time domain
Jinzhong SONG ; Hong YAN ; Xiao-dong ZHANG ; Jian JIANG ;
International Journal of Biomedical Engineering 2011;34(3):163-166
Objective ST-T complex change, which represents the ventricle repolarization phase, is the main clinical indicator in detecting myocardial ischemia (MI) based on electrocardiogram (ECG) signals.However, its feature point location is not accurate due to interferences. In this paper, a new approach about myocardial ischemia analysis was proposed based on QRS complex. Methods QRS complex, representing the ventricle depolarization process, was used to analyze myocardial ischemia, and some parameters were extracted synthetically in time domain. Then they were used for statistical analysis of myocardial ischemia states and non-myocardial ischemia states. Results Five parameters had significant differences after verification of Non-MI signals in MIT-BIH database and MI signals in long-term ST database (LTST) and they were: QRS upward and downward slopes, transient heart rate, R angle and Q angle in a triangle QRS. Conclusion Five parameters extracted from QRS complex had significant differences. The proposed method provides an important basis for myocardial ischemia detection.
9.Effect of dietary fat acids on incretin and islet function
Zhe GAO ; Xiaolu YAN ; Guangyao SONG ; Huijuan MA ; Chunxia DONG
Military Medical Sciences 2015;(10):769-772,786
Objective To explore the effect of dietary fat acids on incretin and islet function in healthy adults .Methods Before each test, healthy subjects received a 1-week pre-experiment eucaloric diet .Fifteen subjects consumed two meals containing different fat acids , including high saturated fat acid ( HSF) and high monounsaturated fat acid ( HMF) .On two separate occasions,they underwent a minimum of 1-week washout between meals .At 0,30,60,120,180 and 240 min following meal intake, the plasma concentrations of gastric inhibitory polypeptide (GIP), glucagon-like peptide-1(GLP-1) and serum concentrations of glucose, insulin, triglycerides ( TG) and free fatty acid ( FFA) were measured.Results Postprandial glucose did not increase significantly following HSF and HMF meals (P>0.05).Compared with HMF meal, significant increase in AUCins240min,AUCTG240min and AUCFFA240minwas observed following HSF meal (P<0.05).Compared with HMF meal,a significant decrease in AUCGIP30min, AUCGIP240min, AUCGLP-1 30min and AUCGLP-1 240min was found following HSF meal (P<0.05).No significant difference was observed inΔI30/ΔG30 following HSF and HMF meals (P>0.05). AUCI/AUCG was significantly lower following HMF meal as compared with HSF meal (P<0.05).Conclusion This study demonstrates that the function of GIP ,GLP-1 andβcell is affected by the dietary fat acids in healthy adults .The HMF meal may stimulate GIP and GLP-1 secretion to a greater extent than HSF meal .
10.Strengthening Management of Hospital Infection Control in Outpatient Operating Room
Xin DONG ; Feng SONG ; Guifen WU ; Yan WANG
Chinese Journal of Nosocomiology 2006;0(08):-
OBJECTIVE To explore the canonical prevention and management method to improve the control quality and safety against hospital infection in outpatient operating room. METHODS To strengthen infection institution,nosocomial control,and operating room management actually,constitute effective disinfection,isolation,and deal of measure. RESULTS By strengthening quality of hospital outpatient operating room,to improve the medical care quality. CONCLUSIONS According to canonical scientific management,to favor the quality and safety of infection prevention in operating room.