Adjunctive Neuromuscular Electrical Stimulation for the Rehabilitation of Swallowing

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2/PHASE3

Total Enrollment

53 participants

Study Classification

INTERVENTIONAL

Study Start Date

2008-04-30

Study Completion Date

2011-04-30

Brief Summary

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Neuromuscular Electrical stimulation (NMES) for swallowing has recently been proposed for the treatment of dysphagia post stroke and is clinically receiving favor as a treatment modality, in the absence of strong research support. This study aims to investigate the effect of NMES therapy for dysphagia upon recovery of swallowing function following stroke. The study will follow a pilot randomized controlled trial design. Fifty one patients admitted to a sub-acute rehabilitation facility will be clinically screened for dysphagia, and randomized into one of three groups, NMES, sham NMES or usual care -behavioral swallowing therapy arm. All patients will be treated for one hour per day for 3 weeks, and their progress and outcome will be monitored. The results will add to the preliminary data on the effectiveness of this form of swallowing treatment for patients following stroke, and has the potential to enable more efficient allocation of resources to post-acute rehabilitation and thus benefit afforded to stroke patients, and the community.

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Detailed Description

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This pilot randomized controlled trial (N=51) includes stroke patients admitted to a sub-acute rehabilitation facility. Subjects will be clinically screened for dysphagia, and randomized into three groups, NMES, sham NMES or usual care -behavioral swallowing therapy arm. Following randomization, all subjects will undergo a video-x-ray (modified barium swallow) of swallowing to confirm the presence of oropharyngeal dysphagia and provide objective data about the nature and degree of dysphagia. All patients will be treated for one hour per day for 3 weeks, and their progress and outcome will be recorded. Participants will be independently evaluated by a blinded assessor at baseline, post treatment and at 3 months following treatment. The primary outcome will be improvement in clinical swallowing ability, oral intake level, and body weight. The results will add to the preliminary data on the effectiveness of this form of swallowing treatment for patients following stroke.

Conditions

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Dysphagia

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

FACTORIAL

Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Investigators Outcome Assessors

Study Groups

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Usual Care

Patients will receive behavioral swallowing therapy comprising combination's of treatment strategies / exercises chosen from an approved hierarchy. This formulation of treatment will be designed and applied by the treating clinician.The treatment will be provided daily for a one-hour over a consecutive 3-week period.

Group Type ACTIVE_COMPARATOR

swallowing therapy

Intervention Type BEHAVIORAL

Standardized behavioral swallowing intervention

sham NMES

Patients will receive behavioral swallowing therapy comprising combinations of treatment strategies / exercises chosen from an approved hierarchy with the addition of non stimulating electrodes. A faux NMES device will be utilized with an active current display and non stimulating electrodes. The treatment will be provided daily for a one-hour over a consecutive 3-week period.

Group Type PLACEBO_COMPARATOR

swallowing therapy

Intervention Type BEHAVIORAL

Standardized behavioral swallowing intervention

NMES therapy

Patients will receive a protocol of standardized behavioral swallowing intervention combined with NMES. This formulation of treatment will be prescribed from a standard protocol and will be applied daily for one-hour over a consecutive 3-week period.

Group Type EXPERIMENTAL

swallowing therapy

Intervention Type BEHAVIORAL

Standardized behavioral swallowing intervention

Interventions

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swallowing therapy

Standardized behavioral swallowing intervention

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Stroke identified by neurological and radiological examination
* Oropharyngeal dysphagia as confirmed by clinical and radiological examination
* No prior history of oropharyngeal dysphagia by patient and/or caregiver report
* No previous head/neck surgery or trauma that may impact swallowing ability
* No other/concomitant neurological disorders (e.g. Parkinson's disease) that would impact oropharyngeal swallowing ability. This does not include post-stroke deficits.
* Physician and patient/family agreement to participate.

Exclusion Criteria

* Exposed to previous behavioral or NMES swallowing therapy within 6 months of admission
* Presence of progressive neurological disorder, such as ALS; Parkinson's or other neurologic disorders within the last 6 months;
* History of neurosurgery (either ablative or stimulatory), encephalitis or significant head trauma.
* History of a significant medical condition such as heart, liver, or renal disease; history or evidence of malignancy within the past 5 years other than excised basal cell carcinoma.
* Because of FDA Warnings, patients with cardiac demand pace makers will be excluded.
* Patients with evidence of significant cognitive impairment or dementia as reflected in a Mini-Mental test less than 23 and/or a score of 50% or less on the comprehension quotient on the Western Aphasia Battery.

Minimum Eligible Age

21 Years

Maximum Eligible Age

90 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No