Evaluation on laboratory diagnosis of catheter-related bloodstream infec-tion due to Rhizobium radiobacter in pediatric patients
10.3969/j.issn.1671-9638.2015.02.003
- VernacularTitle:患儿导管相关性放射根瘤菌血流感染实验室诊断方法探讨
- Author:
Huadong XU
;
Hongwei XU
;
Bo HU
;
Zhen ZHANG
- Publication Type:Journal Article
- Keywords:
pediatrics;
Rhizobium radiobacter;
catheter-associated infection;
diagnosis;
risk factor;
healthcare-associated infection
- From:
Chinese Journal of Infection Control
2015;(2):81-84
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate diagnostic method and infection factors for catheter-related bloodstream infec-tion(CRBSI)due to Rhizobium radiobacter (R.radiobacter)in pediatric patients.Methods Clinical data of 1 014 pediatric patients with central venous catheter(CVC)-related treatment in a hospital from February 2012 to February 2014 were collected,semi-quantitative culturing of catheter,colony forming unit (CFU)ratio of catheter to venous blood,difference in culture time between venous blood and catheter were detected among patients with R.radiobact-er infection;factors for R.radiobacter infection were analyzed.Results Of 1 014 pediatric patients who used CVC, 32 were detected R.radiobacter from catheter blood,28 were detected from venous blood,27 were detected from both catheter and venous blood.Catheter semi-quantitative culture of 27 patients were ≥ 15 CFU,5 were< 15 CFU;CFU ratio of catheter to venous blood of 22 patients were ≥5:1,6 were<5:1;difference in culture time be-tween venous blood and catheter of 26 patients were ≥2 hours,2 were<2 hours.Risk factor analysis revealed that child’s age,catheter indwelling time of each group were significantly different (both P <0.05).Conclusion Cathe-ter semi-quantitative culture,CFU ratio of catheter to venous blood,and difference in culture time between venous and catheter blood are important diagnostic basis for confirming R.radiobacter bloodstream infection;patients aged <2 years,catheter indwelling time >5 days are risk factors for R.radiobacter bloodstream infection.
