Clinicopathological study of vocal cord paralysis
Journal Title: MedPulse -International Medical Journal - Year 2016, Vol 3, Issue 8
Abstract
Introduction: Phonation is beyond doubt one of the highest functions of the human larynx. The function of vocal cords is to produce sound varying only in pitch and intensity. This is then modified by resonating chambers above and below the larynx and is ultimately converted into phonemes by the articulating action of pharynx, tongue, palate, teeth and lips. Vocal cord paralysis can be primary or it may be due to secondary to direct infiltration of the vocal cord, larynx or laryngeal muscles. Aims and objectives: This study designs to determine the incidence, age, involved sides, causes and position of vocal cords in patients of vocal cord paralysis. Material and Methods: This study was carried out at Department of ENT, Government medical college, Jammu for a period of 1 year i.e. from May 2014 to May 2015. This study includes a detailed history and complete physical examination with relevant investigations in 46 cases of vocal cord paralysis. Results: Majority of our patients were above 40 years of age, with maximum number of patients in the age group of 61 – 70 years. There was no significant sex difference, with a male to female ratio of 1: 1. The most common presenting symptom was hoarseness alone. Left vocal cord involvement was seen in majority of patients with the right vocal cord involvement predominantly seen in patients undergoing thyroidectomy. Unilateral vocal cord paralysis was much more common than the bilateral. The most common cause of vocal cord paralysis was neoplasm, with bronchogenic and esophageal carcinomas being commonest. Conclusion: Neoplasms were found to be the most common cause of vocal cord paralysis and thyroidectomy was found to be one of the leading iatrogenic cause of vocal cord paralysis. Thus by avoiding injury to recurrent laryngeal nerve, most of the traumatic vocal cord paralyses can be prevented.
Authors and Affiliations
K. P. Singh, Manish Sharma, Sumeet Angral
Keywords
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