alexa Vocal cord paralysis and its etiologies: a prospective study.


Journal of Anesthesia & Clinical Research

Author(s): Seyed Toutounchi SJ, Eydi M, Golzari SE, Ghaffari MR, Parvizian N

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Abstract INTRODUCTION: Vocal cord paralysis is a common symptom of numerous diseases and it may be due to neurogenic or mechanical fixation of the cords. Paralysis of the vocal cords is just a symptom of underlying disease in some cases; so, clinical diagnosis of the underlying cause leading to paralysis of the vocal cords is important. This study evaluates the causes of vocal cord paralysis. METHODS: In a prospective study, 45 patients with paralyzed vocal cord diagnosis were examined by tests such as examination of the pharynx, larynx, esophagus, thyroid, cervical, lung, and mediastinum, brain and heart by diagnostic imaging to investigate the cause vocal cord paralysis. The study was ended by diagnosing the reason of vocal cord paralysis at each stage of the examination and the clinical studies. RESULTS: The mean duration of symptoms was 18.95±6.50 months. The reason for referral was phonation changes (97.8\%) and aspiration (37.8\%) in the subjects. There was bilateral paralysis in 6.82\%, left paralysis in 56.82\% and right in 63.36\% of subjects. The type of vocal cord placement was midline in 52.8\%, paramedian in 44.4\% and lateral in 2.8\% of the subjects. The causes of vocal cords paralysis were idiopathic paralysis (31.11\%), tumors (31.11\%), surgery (28.89\%), trauma, brain problems, systemic disease and other causes (2.2\%). CONCLUSION: An integrated diagnostic and treatment program is necessary for patients with vocal cord paralysis. Possibility of malignancy should be excluded before marking idiopathic reason to vocal cord paralysis.
This article was published in J Cardiovasc Thorac Res and referenced in Journal of Anesthesia & Clinical Research

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