Electrical muscle stimulation for Bell's palsy (sudden weakness in the muscles on one side of the face)

ISRCTN ISRCTN14974687
DOI https://doi.org/10.1186/ISRCTN14974687
Secondary identifying numbers 30/17
Submission date
21/02/2023
Registration date
27/02/2023
Last edited
08/07/2024
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Nervous System Diseases
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English Summary

Background and study aims
Bell's palsy is sudden weakness in the muscles on one side of the face. The aim of this study is to explore whether selective electrical muscle stimulation could shorten the time to recovery of facial paralysis.

Who can participate?
Adults (aged 18 years or above) with a diagnosis of acute, incomplete Bell's palsy, up to one month from onset of paralysis.

What does the study involve?
The control condition will receive usual physical therapy, consisting of neuromuscular reeducation and massage therapy. The experimental group will receive selective electrical muscle stimulation, in addition to usual physical therapy. For both groups, treatments are received once daily, Monday through Friday, until they are judged by their treating therapist to be fully recovered. At enrollment, discharge, and a follow-up visit 6 months after discharge, all participants will be video recorded performing 11 facial expressions. The video-recorded facial movements will be rated by two independent blinded reviewers using the House Brackmann scale and the eFACE scale.

What are the possible benefits and risks of participating?
All participants receive usual physical therapy, which is the standard of care for Bell's palsy. Half of the participants will receive electrical stimulation, which may decrease time to recovery from paralysis. Electrical stimulation may be associated with increased risk or severity of synkinesis.

Where is the study run from?
Universidad Nacionale del Nordeste, Corrientes, Argentina.

When is the study starting and how long is it expected to run for?
February 2017 to December 2018

Who is funding the study?
Investigator initiated and funded

Who is the main contact?
Myriam Loyo, loyo@ohsu.edu

Contact information

Mr Antonio Alejandro Di Pietro
Principal Investigator

Pérez de Herrera 2062
B° Cerro de las rosas
Cordoba
X5009 HWD
Argentina

Phone +54 351 482-5779
Email tonydipi1@gmail.com
Dr Villma Campana
Scientific

Pérez de Herrera 2062
B° Cerro de las rosas
Cordoba
X5009 HWD
Argentina

ORCiD logoORCID ID 0000-0001-6742-8640
Email vilma.campana@unc.edu.ar

Study information

Study designAlternate allocation controlled trial
Primary study designInterventional
Secondary study designAlternate allocation controlled trial
Study setting(s)Other
Study typeTreatment
Participant information sheet Not available in web format, please use the contact details to request a patient information sheet.
Scientific titleEfficacy of adding selective electrical muscle stimulation to usual physical therapy for Bell's palsy
Study hypothesisTranscutaneously applied selective electrical muscle stimulation, delivered with physical therapy, will accelerate recovery from Bell's palsy, compared to physical therapy alone.
Ethics approval(s)Approved 14/11/2013, Comité de bioética en investigación de ciencias de la salud – Facultad de medicina – Universidad Nacional del Nordeste (UNNE), (Moreno 1240, ciudad de Corrientes, Provincia de Corrientes, República Argentina; +54 9 379 4-436057; cbi@med.unne.edu.ar), ref: 30/17
ConditionBell's palsy
InterventionParticipants are assigned to groups using sequential allocation.
The control condition will receive usual physical therapy, consisting of neuromuscular reeducation and massage therapy. The experimental group will receive selective electrical muscle stimulation, in addition to usual physical therapy. For both groups, treatments are received once daily, Monday through Friday, until they are judged by their treating therapist to be fully recovered. At enrollment, discharge, and a follow-up visit 6 months after discharge, all participants will be video recorded performing 11 facial expressions. The video-recorded facial movements will be rated by two independent blinded reviewers using the House Brackmann scale and the eFACE scale.
Intervention typeDevice
Pharmaceutical study type(s)
PhasePhase II
Drug / device / biological / vaccine name(s)Electrical stimulation
Primary outcome measureStatic, dynamic, and synkinesis facial function were measured using the eFACE scale at baseline, completion of intervention, and 6 months after completion of intervention.
Secondary outcome measuresFacial function measured on the House Brackmann scale at baseline, completion of intervention, and 6 months after completion of intervention.
Overall study start date01/02/2017
Overall study end date31/12/2018

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexBoth
Target number of participants40
Total final enrolment40
Participant inclusion criteria1. Diagnosis of acute, incomplete Bell's palsy, up to one month from onset of paralysis
2. Aged 18 years and above
Participant exclusion criteria1. Other causes of facial paralysis.
2. Hypertension
3. Diabetes
4. Prior facial physical therapy or muscle stimulation
5. Complete facial paralysis
Recruitment start date01/02/2017
Recruitment end date01/06/2018

Locations

Countries of recruitment

  • Argentina

Study participating centre

Universidad Nacional del Nordeste
25 de Mayo 868
Corrientes
W3400 BCH
Argentina

Sponsor information

Universidad Nacionale Del Nordeste
University/education

Moreno 1240, ciudad de Corrientes, Provincia de Corrientes, República Argentina.
Corrientes
W3400ACY
Argentina

Phone +54 9 379 4-436057
Email webmaster@unne.edu.ar
Website www.med.unne.edu.ar

Funders

Funder type

Other

Investigator initiated and funded

No information available

Results and Publications

Intention to publish date01/06/2023
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planPlanned publication in a peer-reviewed journal.
IPD sharing planThe datasets generated during and/or analyzed during the current study will be available upon request from tonydipi1@gmail.com

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Protocol file in Spanish 01/03/2023 No No
Statistical Analysis Plan 01/03/2023 No No
Dataset 03/07/2023 No No
Results article 24/10/2023 08/07/2024 Yes No

Additional files

43260 Protocol.pdf
in Spanish
43260 SAP.pdf
ISRCTN14974687 raw data (removed videos).xlsx

Editorial Notes

08/07/2024: Publication reference added.
03/07/2023: Internal review.
01/03/2023: The following changes were made to the trial record:
1. Uploaded protocol (not peer-reviewed) as an additional file.
2. The statistical analysis plan was uploaded as an additional file.
28/02/2023: A dataset was uploaded as an additional file.
27/02/2023: Trial's existence confirmed by Comité de bioética en investigación de ciencias de la salud – Facultad de medicina – Universidad Nacional del Nordeste (UNNE).