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Abstract
To determine the frequency of different isolates from samples taken from catheter tips of tracheal suction catheters, endotracheal tubes and central venous pressure line catheters among the patients of medical intensive care units
Methods: In this descriptive cross sectional study a total of 200 patients were checked for bacterial or fungal growth. Included samples were 140 from suction catheters, 51 from endotracheal tubes and 9 from CVP catheters cultured for bacterial or fungal growth. Different organisms were identified on the basis of colony morphology, Colony staining and Biochemical reactions.
Results: Out of 200 patients, majority (72.5%) patients were found to be positive for bacterial or fungal growth. Out of which 89(62.2%) were male and 54(37.8%) were females. One hundred and one (69.7%), 38(26.2%), 6(4.1%) growth cultures were obtained from samples of tracheal suction catheter tips, ETT tips and CVP catheter tips respectively. Microorganisms isolated were Acinetobacter species 62(42.8%), Klebsiella species 43(29.7%), Pseudomonas species 19(13.1%), E.coli 8(5.5%), MRSA 5(3.4%), Candida albicans 4(2.8%), Proteus 2(1.4%) and Staphylococcus aureus 2(1.4%).
Conclusion: Acinetobacter, Klebsiella and Pseudomonas were the most frequent infectious agents isolated from catheter tips in settings of medical intensive care units.