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Voice Analysis Using the LPC (Linear Predictive Coding)Method for the Prediction of Aspiration

NCT01981239 · Status: WITHDRAWN · Phase: NA · Type: INTERVENTIONAL

Last updated 2014-12-03

No results posted yet for this study

Summary

It was well known that aspiration is the primary cause of an aspiration pneumonia among the dysphagia patients.

In order to predict the degree of an aspitation,video-fluoroscopic-swallowing study and fiberoptic-endoscopic swallowing evaluation have been developed, but those evaluations are invasive and allowed only in a limited condition.

In this study, as a precedent study for the non-linear analysis, voice analysis using LPC method will be evaluated. The superiority of LPC method will be compared with a spectral analysis using Jitter and Simmer as a positive control.

This clinical study will be performed prospective, positive-controlled, single-blind (i.e. assessor-blind),and single cohort clinical trial for efficacy

Conditions

  • Deglutition Disorder

Interventions

DEVICE

VFSS

VFSS was perfomred one day before or after the voice sampling in the same patients according to the guideline of modified Longeman's protocol.

Sponsors & Collaborators

  • Ulsan University Hospital

    lead OTHER

Principal Investigators

  • Chang Ho Hwang, M.D. & Ph.D. · Ulsan University Hospital

  • Hyungseob Han, M.Sc. · University of Ulsan

Study Design

Allocation
NON_RANDOMIZED
Purpose
DIAGNOSTIC
Masking
SINGLE
Model
PARALLEL

Eligibility

Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2013-11-30
Primary Completion
2014-12-31
Completion
2014-12-31

Countries

  • South Korea

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01981239 on ClinicalTrials.gov