The point-touch technique for botulinum toxin injection in adductor spasmodic dysphonia: quality of life assessment
Morzaria, S; Damrose, E J; Morzaria S; Stanford University School of Medicine; Damrose E J; Stanford University School of Medicine
Журнал:
The Journal of Laryngology & Otology
Дата:
2011
Аннотация:
AbstractBackground:Botulinum toxin injection under electromyographic guidance is the ‘gold standard’ for adductor spasmodic dysphonia treatment. The point-touch technique, an alternative injection method which relies on anatomical landmarks, is cheaper, quicker and more accessible, but has not yet gained widespread acceptance due to concerns about patient satisfaction.Objective:To assess swallowing and voice-related quality of life following point-touch botulinum toxin injection in adductor spasmodic dysphonia patients.Setting:Stanford University Voice and Swallowing Center.Design:Prospective case series (evidence level four).Methods:Consecutive adductor spasmodic dysphonia patients with a stable botulinum toxin dose–response relationship were recruited prospectively. The Eating Assessment Tool and Voice-Related Quality of Life questionnaires were completed pre-treatment and at 10 and 30 per cent completion of the injection cycle, respectively.Results:Thirty-seven patients completed follow up. The mean total botulinum toxin dose was 0.88 units. Pre-treatment Voice-Related Quality of Life questionnaire results reflected the burden of disease. Post-treatment Eating Assessment Tool and Voice-Related Quality of Life questionnaire results were collected at 2.53 and 7.84 weeks, respectively; the former showed an increase in dysphagia, albeit statistically insignificant, while the latter showed significantly improved scores (both domain and total).Conclusion:The point-touch technique is a viable alternative for botulinum toxin injection in the treatment of adductor spasmodic dysphonia.
174.0Кб