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Upper airway radiographs in infants with upper airway insufficiency
S L Tonkin1, S L Davis, T R Gunn
1Cot Death Association (a division of the National Children's Health Research Foundation), University of Auckland, New Zealand.
Insights
Respiratory phase timed radiographs revealed upper airway narrowing in infants at risk for insufficiency. This imaging technique aids in evaluating infant upper airway dysfunction and predicting apnoeic episodes.
Area of Science:
- Pediatric Pulmonology
- Medical Imaging
- Neonatology
Background:
- Infants at risk for upper airway insufficiency often present with apnoeic episodes.
- Accurate assessment of upper airway function in infants is crucial for timely intervention.
Abstract:
Upper airway measurements in nine infants considered to be at risk of upper airway insufficiency, six of whom presented after an apnoeic episode, were compared with measurements taken in two age groups of healthy infants. Paired, inspiratory and expiratory, lateral upper airway radiographs were obtained while the infants were awake and breathing quietly. The radiographs of all nine infants demonstrated narrowing in the oropharyngeal portion of the airway during inspiration and in six infants there was ballooning of the upper airway during expiration. Seven of the nine infants subsequently experienced recurrent apnoeic episodes which required vigorous stimulation to restore breathing. Experience suggests that respiratory phase timed radiographs are a useful adjunct to the evaluation of infants who are suspected of having upper airway dysfunction. They provide information regarding both the dimensions and compliance of the upper airway as well as the site of any restriction.