Article

OBJECTIVE: To investigate whether acoustic voice analysis can identify the
presence of penetration/aspiration (P/A) as confirmed by videofluoroscopic
swallowing study (VFSS). DESIGN: Repeated measures within subjects. SETTING:
Rehabilitation department in a tertiary teaching hospital. PARTICIPANTS: Patients
(N=44) with swallowing disorders referred for VFSS. INTERVENTIONS: Patients were
asked to sustain phonations /a/ for at least 3 seconds before and after
swallowing 5mL of liquid barium during a standardized VFSS. The acoustic voice
analysis program was used to analyze vocal quality change. MAIN OUTCOME MEASURES:
Five acoustic parameters including average fundamental frequency, relative
average perturbation, shimmer percentage, noise-to-harmonic ratio, and voice
turbulence index were analyzed for each participant before and after swallowing
during VFSS. Differences in the pre- and postmeasures were compared between those
participants who demonstrated VFSS-confirmed P/A (n=17) and those who did not
(n=27). RESULTS: No significant changes were noted in the 5 acoustic parameters
in or between P/A and nonpenetration/aspiration groups (P>.05). CONCLUSIONS:
As used in this study, acoustic voice analysis does not identify the presence of P/A
confirmed by VFSS.
CI - Copyright (c) 2012 American Congress of Rehabilitation Medicine. Published by
Elsevier Inc. All rights reserved.

Langue : ANGLAIS