Determination Of Microbial Colonization Of Home Nebulizers Used By Children With Recurrent Wheeze In Chengalpattu District
DOI:
https://doi.org/10.64252/7pffm375Keywords:
Nebulizer Contamination; Microbial Colonization; Pediatric Wheeze; Home Respiratory Devices; Infection ControlAbstract
Background: Home nebulizers are widely used for pediatric respiratory illnesses. However, improper cleaning practices may predispose to microbial colonization, thereby increasing the risk of respiratory infections.
Aim: To determine the extent of microbial colonization in home nebulizers used by children with recurrent wheeze in Chengalpattu district.
Methods: A cross-sectional study was conducted at the Department of Paediatrics, SSSMCRI, over 12 months. Children aged 1 month to 12 years with recurrent respiratory complaints and using home nebulizers were enrolled. Swabs were obtained from nebulizer masks, tubing, and drug containers. Samples were processed for bacterial and fungal culture. Data were analyzed using SPSS, with p < 0.05 considered significant.
Results: Among 189 participants, the most common age group was 2–5 years (45.5%). Recurrent wheeze (51.1%) was the leading diagnosis. Nebulizers (68.2%) were more commonly used than inhalers (31.8%). Bacterial growth was detected in 51.3% of devices, predominantly Pseudomonas aeruginosa (33.3%), Staphylococcus aureus (25.0%), and Klebsiella spp. (16.7%). Colonization correlated significantly with infrequent cleaning practices (p < 0.001).
Conclusion: Home nebulizers, when inadequately cleaned, act as reservoirs for pathogenic bacteria. Caregiver education on device hygiene is crucial to prevent secondary respiratory infections.
