Longitudinal dynamics of respiratory microbiome composition in infants after tracheostomy placement
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View abstract on PubMed
Summary
This summary is machine-generated.Tracheostomy in infants causes immediate and lasting changes to the airway microbiome, impacting respiratory health. This disruption highlights a critical window of vulnerability in early life development.
Area Of Science
- Pediatric Respiratory Medicine
- Microbiome Research
- Infant Health
Background
- Abnormal respiratory microbiomes are linked to artificial airways in children.
- The timing and persistence of these microbiome disruptions after infant tracheostomy are not well-defined.
Purpose Of The Study
- To prospectively characterize airway microbiome dynamics in infants following new tracheostomy placement.
- To understand the impact of tracheostomy on the developing infant airway microbiome.
Main Methods
- Prospective longitudinal study of 15 hospitalized infants (<=12 months) undergoing tracheostomy.
- Collection of 84 tracheal aspirate samples from day 1 up to 4 months post-procedure.
- 16S rRNA sequencing to analyze airway microbiome composition and diversity.
Main Results
- Tracheostomy induced immediate and sustained airway microbiome shifts.
- <i>Staphylococcus</i> abundance increased post-tracheostomy, peaking around 40 days.
- Alpha diversity decreased significantly within 30 days, returning to baseline by 90 days.
- Beta diversity showed marked compositional changes and ongoing divergence up to 4 months.
- Microbiome structure was significantly associated with time since tracheostomy and clinical factors like home mechanical ventilation (HMV).
Conclusions
- Tracheostomy causes rapid and prolonged disruption of the infant airway microbiome.
- This highlights a window of vulnerability in early life with implications for respiratory health.
- Findings support the need for individualized care strategies in infants with tracheostomies.
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