Evaluation of Dysphagia by 6-chnnel Surface Electromyography

Completed

• Conditions: Deglutition Disorders

• Registration Number: NCT03494361
• Lead Sponsor: Seoul National University Hospital

Brief Summary

The natural process of aging affects a few very specific timing parameters such as swallow reaction time and hyoid one movement velocity.

Many swallow timing and bolus transit parameters appear to be unaffected by aging. We want to know the changes of kinematic variables according to the aging process.

First hypothesis: There are probably be a protection mechanism that blocks functional loss progressing to kinematic abnormality. Muscle activation sequence change (i.e duration or amplitude) of the oropharyngeal muscles play an important role.

Second hypothesis: Age-related differences in muscle activation patterns will also appear differently depending on the characteristics of swallowed food.

Detailed Description

Inclusion criteria

Inclusion criteria of healthy older adults : Age \> 60, without dysphagia, comorbidity

Inclusion criteria of young control group

: Age \< 60, without dysphagia, comorbidity

No prior history of swallowing difficulty or history of central nervous system disease, and none were taking medication that are known to affect swallowing.

Surface EMG was performed at bilateral suprahyoid, thyrohyoid, sternothyroid and pharyngeal constrictors. The latency of activation and termination was checked.

Study Timeline

• Study Start: 2016-07-04
• Primary Completion: 2017-11-21
• Study Completion: 2017-11-21
• Study First Submitted: 2018-04-02
• Study First Submitted QC: 2018-04-10
• Study First Posted: 2018-04-11
• Status Verified: 2020-07
• Last Update Submitted: 2020-07-22
• Last Update Posted: 2020-07-23

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 40

Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Latency	once at study, when patient enrolled	the latency of muscular activation

Secondary Outcome Measures

Name	Time	Method
duration	once at study, when patient enrolled	the contractile duration of evaluated muscles