Sleep disordered breathing as a delayed complication of iatrogenic vocal cord trauma

Abstract A case of a 55 year old woman with iatrogenic vocal cord trauma and sleep related symptoms is reported. In particular this case highlights sleep disordered breathing as a delayed complication after iatrogenic vocal cord trauma. The patient developed acute stridor from a contralateral vocal cord hematoma following vocal fold injection for right vocal cord paralysis. Acute respiratory symptoms resolved with oxygen, steroids and nebulized therapy, but nocturnal symptoms persisted and polysomnography revealed sleep-related hypoventilation and mild obstructive sleep apnea. Positive pressure therapy was successfully used to ameliorate her symptoms and treat sleep disordered breathing until her hematoma resolved. In addition to the typically acute respiratory symptoms that may result from vocal cord dysfunction, sleep disordered breathing may also present as a significant sub-acute or chronic problem. Management of the acute respiratory symptoms is relatively well established, but clinicians should be alert for more subtle nocturnal symptoms that may require further study with polysomnography.