The Effect of Deep Brain Stimulation on Facial Expressions. (STN-DBS)

March 13, 2019 updated by: Atilla YILMAZ, Mustafa Kemal University

The Effect of Subthalamic Nucleus Deep Brain Stimulation on Facial Expressions in Parkinson's Disease.

Whether Subthalamic Nucleus (STN) Deep Brain Stimulation (DBS), a treatment commonly used to ameliorate the motor symptoms of Parkinson's disease (PD), affects on facial expressions is unclear. The purpose of this study was to investigate the potential effects of DBS and different frequencies on facial expressions of PD patients by volunteers via a web site: http://www.supporttoscience.com

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Detailed Description

Parkinson's disease (PD) is the second most frequent progressive neuro-degenerative disease with a worldwide prevalence of 4-6 million and the mask face is an important and also troublesome sign of PD. Deep Brain Stimulation (DBS) surgery can be a viable option which has recently emerged and been accepted as a useful surgical method for PD. Standard DBS targets include Subthalamic Nucleus (STN) and Globus Pallidus Internus (GPi). Although the STN-DBS application is known to have favorable effects on motor and non-motor symptoms of PD, there is a lack information about the effect on facial expressions of PD patients. Our aim is to analyze the effect of the STN-DBS stimulation and different frequencies on the facial expressions of PD patients.

The study initially recruited 18 patients with idiopathic PD who underwent DBS surgery for movement disorders caused by PD at Mustafa Kemal University Medical Faculty Neurosurgery Department.

Inclusion criteria:

  • Idiopathic PD responsive to L-Dopa treatment,
  • Between 40-75 years of age,
  • Having received bilateral STN DBS surgery at least six months prior to the investigation to ensure stable stimulation parameters,
  • Mentally normal patients that could understand and respond to a directives. The evaluation will be made by the face photos of the patients. The face photos for the expressions including [normal], [sad], [happy], and [angry] were obtained at frequencies including 130 Hz, 60 Hz, 99 Hz, 230 Hz and off-stimulation. The face photos will evaluate by the software and by the volunteers with the aim of a website: http://www.supporttoscience.com

Study Type

Interventional

Enrollment (Anticipated)

18

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

40 years to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Idiopathic PD responsive to L-Dopa treatment,
  • Between 40-75 years of age,
  • Having received bilateral STN DBS surgery at least one month prior to the investigation to ensure stable stimulation parameters,
  • Mentally normal patients that could understand and respond to a questionnaire.

Exclusion Criteria:

  • Above 75 years of age,
  • Severe dementia,
  • History of an additional neurologic disease,
  • The presence of a disease, such as the facial paralysis, that could affect facial expressions,
  • Having a wound on the face.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Other
  • Allocation: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: DBS off
Deep Brain Stimulation is an established surgical method for Parkinson's Disease.
Other Names:
  • Activa PC
  • Vercise
Active Comparator: DBS on 60 Hz.
Deep Brain Stimulation is an established surgical method for Parkinson's Disease.
Other Names:
  • Activa PC
  • Vercise
Active Comparator: DBS on 99 Hz.
Deep Brain Stimulation is an established surgical method for Parkinson's Disease.
Other Names:
  • Activa PC
  • Vercise
Active Comparator: DBS on 130 Hz.
Deep Brain Stimulation is an established surgical method for Parkinson's Disease.
Other Names:
  • Activa PC
  • Vercise
Active Comparator: DBS on 230 Hz.
Deep Brain Stimulation is an established surgical method for Parkinson's Disease.
Other Names:
  • Activa PC
  • Vercise

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
The effect of Deep brain stimulation on facial expressions will be analyzed by volunteers via a web site then the results will evaluate by statistical analyses.
Time Frame: 3 months

The evaluation of patients photos (in different frequencies and when stimulation off status) will be analyzed by volunteers via a website, then the results will be compare and evaluate by statistical analysis. The results will give us an opinion about these:

The effect of Deep Brain Stimulation on Parkinsonians patients facial expression and which frequency setting is better for facial expression.

3 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

May 1, 2018

Primary Completion (Anticipated)

August 12, 2019

Study Completion (Anticipated)

December 1, 2019

Study Registration Dates

First Submitted

May 28, 2018

First Submitted That Met QC Criteria

June 14, 2018

First Posted (Actual)

June 15, 2018

Study Record Updates

Last Update Posted (Actual)

March 14, 2019

Last Update Submitted That Met QC Criteria

March 13, 2019

Last Verified

March 1, 2019

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

The results will be shared

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

product manufactured in and exported from the U.S.

Yes

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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