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Validation of the Synkinesis Assessment Questionnaire
Ritvik P Mehta1, Mara WernickRobinson, Tessa A Hadlock
1Facial Nerve Center, Massachusetts Eye and Ear Infirmary/ Harvard Medical School, Boston, Massachusetts 02114, USA.
The Synkinesis Assessment Questionnaire (SAQ) reliably and validly measures facial synkinesis in patients. This new tool offers a patient-centered approach to assessing this condition.
Area of Science:
- Neurology
- Ophthalmology
- Plastic Surgery
Background:
- Facial synkinesis is an involuntary complication following facial nerve injury.
- Accurate assessment of facial synkinesis is crucial for treatment planning and outcome evaluation.
- Existing assessment tools may lack patient-centered perspectives or comprehensive validation.
Purpose of the Study:
- To validate the Synkinesis Assessment Questionnaire (SAQ), a novel patient-graded instrument for evaluating facial synkinesis.
- To establish the reliability, validity, and responsiveness of the SAQ.
Main Methods:
- Prospective clinical questionnaire validation study involving 65 patients with facial nerve disorders.
- Administration of the SAQ at baseline and follow-up, with and without botulinum toxin intervention.
- Comparison of SAQ scores between patients with facial synkinesis and healthy subjects.
Main Results:
- High test-retest reliability (Spearman's rho = 0.876) and strong internal consistency (Cronbach's alpha = 0.859) were observed for the SAQ.
- Significant improvement in SAQ scores post-botulinum toxin treatment indicated construct validity.
- Distinctly lower SAQ scores in healthy individuals compared to patients with facial synkinesis confirmed validity.
Conclusions:
- The Synkinesis Assessment Questionnaire (SAQ) is a reliable and valid patient-reported outcome measure for facial synkinesis.
- The SAQ is the first dedicated instrument for assessing facial synkinesis, offering a valuable tool for clinical practice.
- The validated SAQ provides a simple, patient-graded method to evaluate the impact of facial synkinesis.
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