Article

Timely hyolaryngeal excursion and laryngeal closure are essential for safe
transfer of the bolus during the pharyngeal swallow. The temporal measures stage
transition duration (STD) and laryngeal closure duration (LCD) represent these
physiological events. The purpose of this investigation was to determine whether
small changes in bolus consistency and volume affect these temporal measures in
poststroke patients who aspirate, poststroke patients who do not aspirate, and
nonneurologically impaired control subjects. STD and LCD were obtained by
frame-by-frame analysis of the videofluoroscopic examinations of 5 and 10 ml thin
and nectar thick liquids. Using a three-way analysis of variance, STD was
significantly different between the control group and the two poststroke groups;
however there was no difference between the two stroke groups. There was no
difference among the three groups on LCD. Bolus consistency and bolus volume had
no effect. Clinical implications of these findings are discussed.

Langue : ANGLAIS