Turkish Validation of the Synkinesis Assessment Questionnaire (SAQ) | NCT07750561

NCT07750561

Overview

NCT ID: NCT07750561
Lead Sponsor: Barış CELBEKOTHER
Official Title: Turkish Cross-Cultural Adaptation, Validity, and Reliability of the Synkinesis Assessment Questionnaire (SAQ) in Patients With Peripheral Facial Palsy
Brief Summary: Peripheral facial palsy may result in synkinesis, a condition characterized by involuntary facial muscle movements that occur during voluntary facial expressions. Synkinesis can negatively affect facial function, appearance, and quality of life. The Synkinesis Assessment Questionnaire (SAQ) is a patient-reported outcome measure developed to assess the severity and impact of synkinesis. However, a validated Turkish version is not currently available.

The aim of this study is to translate and culturally adapt the SAQ into Turkish and to evaluate its validity and reliability in Turkish-speaking adults with peripheral facial palsy and synkinesis. The Turkish version will be developed using a standardized forward-backward translation process. Participants will complete the Turkish SAQ and the Facial Disability Index (FDI). Reliability, internal consistency, and construct validity will be evaluated to determine whether the Turkish SAQ is a valid and reliable instrument for clinical practice and research.

Status and Timeline

Status: Enrolling by invitation
Last Update Posted: Aug 6, 2026Actual
Start Date: Aug 15, 2026Estimated
Primary Completion Date: Nov 1, 2026Estimated

Participation Criteria

Ages Eligible for Study: Child (0-17)Adult (18-64)
Sexes Eligible for Study: All
Accepts Healthy Volunteers?: No
Eligibility Criteria: Inclusion Criteria:

Adults aged 18 years or older.

Diagnosis of peripheral facial palsy.

At least 6 months since the onset of peripheral facial palsy.

Clinically confirmed facial synkinesis.

Ability to read, write, and speak Turkish.

Provision of written informed consent to participate in the study.

Exclusion Criteria:

Presence of a secondary neurological disorder that may affect the facial muscles, such as Parkinson's disease or multiple sclerosis.

Cognitive impairment or severe psychiatric illness that may prevent understanding or completion of the questionnaires.

History of congenital facial palsy.

History of major facial surgery or trauma that may affect the assessment of synkinesis.

Planned botulinum toxin injection or surgical intervention during the test-retest assessment period.

Study Plan

Study Type: Observational
Phase: No data available
Enrollment: 49Estimated
Primary Purpose: No data available
Allocation: No data available
Interventional Model: No data available
Masking

Contacts and Locations

Central Contacts: No data available
Locations: Biruni University

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This cohort will include adults (≥18 years) with peripheral facial palsy who have clinically confirmed synkinesis for at least 6 months after symptom onset. Participants will complete the Turkish version of the Synkinesis Assessment Questionnaire (SAQ) and the Facial Disability Index (FDI) during the baseline assessment. The Turkish SAQ will be administered again one week later to evaluate test-retest reliability. Data obtained from these assessments will be used to examine the validity, reliability, and psychometric properties of the Turkish version of the SAQ.

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