Objective To explore the application value of Mycoplasma pneumoniae （MP） rapid culture technique for diagnosis of lower respiratory tract infections （LRTIs ） inpatients. Methods 120 LRTIs inpatients in respiratory ward，Anzhen hospital from January 1，2010 to December 31，2010，were recruited in this study. Their pharynx swabs were obtained for rapid MP culture and the serum antibody detection of MP was performed by Gelatin particle agglutination method. Results There were 33 positive yields in 120 LRTIs patients by rapid culture method and 24 positive yields by serological assay. The positive rates were 27.5% and 20.0% respectively. There was no significant difference in the two detecting methods （Pgt;0.05）. Conclusions MP rapid culture method is a better early diagnostic method at the present. MP rapid culture method combined with serological detection can improve the positive yield and avoid missed diagnosis.
ObjectiveTo investigate the relationship between mycoplasma pneumonia infection (MP) and acute urticaria (AU). MethodsFrom December 2011 to November 2012, in the department of clinical laboratory of the Lishui Central Hospital, the blood samples of 178 patients with acute urticaria (group AU) and 200 healthy volunteers (group C) who initially visited this hospital were collected to detect the MP-IgM+IgG+IgA antibody in the serum. The occurrence of positive MP antibody was recorded and the positive rate was calculated. ResultsCompared with group C, the incidence of positive MP was significantly increased in group AU (P < 0.01). ConclusionMycoplasma pneumoniae infection may be one of the causes of acute urticaria.
ObjectiveTo systemically review the efficacy and safety of moxifloxacin for mycoplasma pneumoniae. MethodsSuch databases as PubMed, The Cochrane library (Issue 4, 2014), ISI, CBM, CNKI, VIP and WanFang Data were searched from inception to April 2014 for randomized controlled trials (RCTs) concerning moxifloxacin for mycoplasma pneumoniae. Two reviewers screened literature according to the inclusion and exclusion criteria, extract data, and assess methodological quality of included studies. Then meta-analysis was performed using RevMan 5.2 software. ResultsA total of 16 RCTs involving 1 401 patients were included. The results of meta-analysis showed that:compared with erythrocin or azithromycin, moxifloxacin had higher recovery rate (OR=2.35, 95%CI 1.76 to 3.15, P<0.000 01), higher bacterium negative rate (OR=3.74, 95%CI 1.76 to 7.96, P=0.000 6), and shorter fever clearance time (MD=-1.07, 95%CI -1.43 to -0.71, P<0.000 01); compared with azithromycin alone, moxifloxacin combined with azithromycin had higher recovery rate (OR=1.63, 95%CI 1.09 to 2.42, P=0.02), higher bacterium negative rate (OR=5.78, 95%CI 2.41 to 13.84, P<0.000 1), and shorter fever clearance time (MD=-0.99, 95%CI -1.52 to -0.47, P=0.000 2). In addition, there was a lower incidence of liver damage (OR=0.16, 95%CI 0.04 to 0.72, P=0.02) in patients who took moxifloxacin compared with erythromycin or azithromycin. No significant difference was found in the incidence of gastrointestinal adverse reaction between the two groups. ConclusionMoxifloxacin for mycoplasma pneumonia is more effective than macrolides (erythrocin or azithromycin) with a lower incidence of adverse reaction. Due to limited quantity and quality of the included studies, the above conclusion should be further verified by conducting more high quality, large scale, multicentre RCTs.
ObjectivesTo investigate the prevalence of mycoplasma pneumonia (MP) in the pediatric outpatient department of Shanghai Pudong New District Zhoupu Hospital and its relationship with the concentration of fine particulate matter (PM 2.5) in the air.MethodsPatients with respiratory tract infection, from one month to 15 years old, diagnosed in the pediatric department of Shanghai Pudong New District Zhoupu Hospital from May 2016 to April 2017 were enrolled. Mycoplasma pneumonia antibody was detected by colloidal gold assay, and mycoplasma antibody was detected after 1 week of negative test. PM 2.5 index of the same period was also collected. SAS 9.1.3 software was used for statistical analysis.ResultsA total of 3 862 children were enrolled, of which 947 were positive for MP, with a positive rate of 24.52%. The positive rates of each age group were 10.02% for the one month to one year old group, 23.51% for the 1 to 4 years old group, 31.70% for the 4 to 7 years old group, and 22.81% for the 7 to 15 years old group. The positive rate of each age group had statistically significant difference (χ2=86.120 0, P<0.000 1). The positive rates of spring, summer, autumn, and winter were 25.06%, 20.43%, 19.52 and 33.61%, respectively. The difference was statistically significant (χ2=67.1446, P<0.000 1). Combining the PM 2.5 index in Shanghai Pudong area from May 2016 to April 2017, the positive correlation between PM 2.5 and positive rate of MP was found (r=0.9007, P<0.001).ConclusionsThe positive rate of MP in Shanghai Pudong area is 24.52%, and reach its highest level in the preschool children and in winter. It is positively correlated with the PM 2.5 index as well.