Objectives
To evaluate the neurodevelopmental outcomes of very preterm
(<30 weeks) infants who underwent tracheostomy.
Study design
Retrospective cohort study from 16 centers of the NICHD Neonatal
Research Network over 10 years (2001-2011). Infants who survived to at least
36 weeks (N=8,683), including 304 infants with tracheostomies, were studied.
Primary outcome was death or neurodevelopmental impairment (NDI, a composite
of one or more of: developmental delay, neurologic impairment, profound
hearing loss, severe visual impairment) at a corrected age of 18-22 months.
Outcomes were compared using multiple logistic regression. We assessed
impact of timing, by comparing outcomes of infants who underwent
tracheostomy before and after 120 days of life.
Results
Tracheostomies were associated with all neonatal morbidities
examined, and with most adverse neurodevelopmental outcomes. Death or NDI
occurred in 83% of infants with tracheostomies and 40% of those without
[odds ratio (OR) adjusted for center 7.0 (95%CI, 5.2-9.5)]. After adjustment
for potential confounders, odds of death or NDI remained higher [OR 3.3
(95%CI, 2.4-4.6)], but odds of death alone were lower [OR 0.4 (95%CI,
0.3-0.7)], among infants with tracheostomies. Death or NDI was lower in
infants who received their tracheostomies before, rather than after, 120
days of life [adjusted OR 0.5 (95%CI, 0.3-0.9)].
Conclusions
Tracheostomy in preterm infants is associated with adverse
developmental outcomes, and cannot mitigate the significant risk associated
with many complications of prematurity. These data may inform counseling
about tracheostomy in this vulnerable population.