Bilateral Vocal Fold Motion Impairment Associated With Diffuse Idiopathic Skeletal Hyperostosis.

Objective: To describe the clinical courses and interventions of symptomatic patients with bilateral vocal fold motion impairment (BVFMI) attributed to diffuse idiopathic skeletal hyperostosis (DISH). Study Design: Retrospective cohort study. Setting: Single Institution Academic Health Center. Methods: Retrospective chart review of patients ≥18 years old evaluated and treated for symptomatic BVFMI secondary to DISH between February 2021 and March 2023. A literature review was conducted. Results: A total of 4 cases were identified. All patients were male and had symptomatic BVFMI attributed to cervical spine DISH, as seen on imaging. Symptoms ranged from life-threatening dyspnea to breathy dysphonia in addition to dysphagia. Each patient was offered surgery for DISH. Two patients underwent osteophyte removal at the C5-C6 level with improved vocal fold (VF) mobility, breathing, and voice quality. Two patients elected serial observation as voice, swallow, and airway symptoms were manageable. The literature review showed a male-dominant (100%) presentation with an average of 70 years of age. Hypertension (45%) and diabetes mellitus (36%) were the most common comorbidities. Most patients were treated surgically (55%). Conclusion: Both surgical and conservative interventions may be considered for symptomatic relief and improvement in VF mobility on a patient-to-patient basis. Further study is warranted to investigate the etiology and treatment outcomes in these cases.