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A Study of Post Extubation Endotracheal Tube Microbial Colonisation in Patients Undergoing Elective Postoperative Mechanical Ventilation

Singla S, Kohli P, Pandey M

Abstract: Introduction: Elective post operative ventilation facilitates recovery but also increases the risk of post-operative chest infection. An observational study was carried out in patients electively ventilated postoperatively, to study the microbial growth in the tracheal irrigate obtained after tracheal extubation. Objectives: Primary: To study the microbial colonisation of endotracheal tube in patients undergoing elective postoperative ventilation. Secondary: 1. To study the proportion of patients developing respiratory infections postoperatively. 2. To analyze the antibiotic sensitivity of micro-organisms cultured. 3. To correlate the microbial colonisation with duration of tracheal intubation and nature of respiratory infections. Methods: Post extubation, under aseptic conditions, the endotracheal tube was flushed with 5 ml of sterile isotonic saline and the irrigate subjected to culture sensitivity study. Results: Cultures were negative for microbial growth in patients extubated at ? 24 hrs. A positive microbial culture was obtained in all patients extubated at ? 72 hrs. Incidence of chest infection was 13 %. Acinetobacter, Klebsiella and Pseudomonas were the most common micro-organisms isolated. Acinetobacter and Klebsiella were found most sensitive to colistin. Conclusion: Risk of endotracheal microbial colonisation and chest infection is nil/negligible with elective post-op ventilation of ?24 hrs. Incidence of endotracheal microbial colonization and chest infection increases with duration of mechanical ventilation. Acinetobacter and Klebsiella are the two most common micro-organisms isolated. Both are highly sensitivity to colistin.

Keywords: elective mechanical ventilation, microbial colonisation, antibiotic sensitivity

Country: India, Subject Area: Medical Science

Pages: 726 - 732

Edition: Volume 8 Issue 5, May 2019

How to Cite this Article?

Singla S, Kohli P, Pandey M, "A Study of Post Extubation Endotracheal Tube Microbial Colonisation in Patients Undergoing Elective Postoperative Mechanical Ventilation", International Journal of Science and Research (IJSR), https://www.ijsr.net/archive/v8i5/show_abstract.php?id=ART20197681, Volume 8 Issue 5, May 2019, 726 - 732

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