About this trial
This study will examine the effects of varying liquid viscosity on swallow physiology in infants with oropharyngeal dysphagia and brief resolved unexplained event (BRUE) and other children with dysphagia that would be at risk for symptoms of swallow dysfunction.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Age 0 to 21 years
Admitted to Boston Children's Hospital after experiencing first lifetime BRUE, or with dysphagia symptoms such that they would be at risk for BRUE or other symptoms of swallowing difficulty
Have had videofluoroscopic swallow study performed or might have future videofluoroscopic swallow study performed.
Disqualifiers
Any pre-existing medical diagnoses that exclude brief resolved unexplained event diagnosis including seizure disorders and cyanotic congenital heart disease
Any nasal/pharyngeal/esophageal anomalies that might affect safe placement of the pharyngeal motility catheter
Children fed exclusively by enteral tube
Allergy to rice cereal or Gelmix thickener, which will be used to adjust liquid viscosity
Trial design
Crossover
Treatments tested in this trial
Thin liquid swallows
Dietary supplementThin liquid swallows of formula or breastmilk or other liquid
Slightly thickened liquid swallows
Dietary supplementSlightly thick liquid swallows of formula thickened with rice cereal or breastmilk or other liquid thickened with Gelmix
Mildly thickened liquid swallows
Dietary supplementMildly thick liquid swallows of formula thickened with rice cereal or breastmilk or other liquid thickened with Gelmix
Moderately thickened liquid swallows
Dietary supplementModerately thick liquid swallows of formula thickened with rice cereal or breastmilk or other liquid thickened with Gelmix
Treatment groups
Trial outcomes
Primary outcomes
Swallow risk indices for thin vs mildly thick vs slightly thick liquids
We will calculate swallow risk index (SRI) from impedance-manometry results to compare mean SRI with thin liquids and thickened liquids for subjects with aspiration compared to mean SRI for thin liquids and thickened liquids in subjects without aspiration.
Secondary outcomes
Impedance-Manometry Swallow Physiology Metrics
We will measure swallow physiology metrics from impedance-manometry results, including post-swallow impedance ratio, to compare these parameters with thin liquids between subjects with and without aspiration and with varied liquid consistencies within subjects.
Sponsors and contacts
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Boston Children's Hospital
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Collaborator