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jsmc-10109


INTRAVENOUS LINE COLONIZATION IN PATIENTS RECEIVING CYTOTOXIC DRUGS 


Hero Ali Hama Rahim a and Sherko A Omer b 


a Hewa Hospital, Sulaimani Directorate of Health.  
b Department of Microbiology, College of Medicine, University of Sulaimani.



Submitted: 14/2/2017; Accepted: 1/8/2017; Published: 15/8/2017


ABSTRACT

Background

Hospital acquired infections are infections that develop during the hospital stay; they mainly include urinary tract, respiratory tract or blood stream infections. 

Objectives

To investigate microbial colonization of intravenous cannula of cancers patients receiving cytotoxic drugs. 

Materials and Methods

Colonization of intravenous cannulas was investigated by cultivation of the device surface and lumen on different culture media under aerobic incubation. The isolates were identified based on cultural, morphological and biochemical activities. The susceptibility of the isolates to antimicrobial drugs was investigated using Bauer-Kirby disk diffusion method and the bacterial isolates were further investigated for their ability to form biofilm. 

Results

From 200 cultivated intravenous cannulas, microbial colonization was detected among 26% and 11% of intravenous cannulas from cancer and non-cancer patients respectively; Out of 37 isolates, 34 (91.9 %) were Gram-positive bacteria, 2 (5.4 %) Gram-negative bacteria and one (2.7 %) was a Candida species. The main bacterial isolates were bacteria belonging to different coagulase negative staphylococci species such as Staphylococcus epidermidis, S. hominis and others. Few faecal organisms were isolated including a single isolate of each Klebsiella pneumoniae and Escherichia coli. All bacterial isolates were able to form biofilm and most showed to have biofilm-related icaA and icaD genes.

Conclusion

We detected microbial colonization of intravenous cannulas in 18.5% of all cultivated devices. We observed more colonization in cancer patients (26%) in comparison to the control group (11%). Most of the isolates were species of CoNS that were able to form biofilm.

KEYWORDS

Intravenous line colonization, Hospital infection, Nosocomial, CoNS, Biofilm.


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