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ISSN: 2641-1709
Research Article(ISSN: 2641-1709) 
Vocal Cord Paralysis –An Etiological Analysis
Volume 5 - Issue 4Architha Menon P1*, Rehna Mohamed2, Vidhya Chemmanchery2, Soumya Vedavyasa2 and Borlingegowda Viswanatha3
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Architha Menon P, Senior Resident, Department of ENT, Bangalore Medical College& Research Institute, Bangalore, India
Received: November 04, 2020; Published: November 25, 2020
DOI: 10.32474/SJO.2020.05.000219
Abstract
Introduction: Vocal cord paralysis is the total interruption of nerve impulse resulting in absence of laryngeal muscle movement. The most common type of vocal cord paralysis found is due to recurrent laryngeal nerve injury. The pathology can be either along the course of the tenth cranial nerve from cerebral cortex to neuromuscular junction or could be from mechanical fixation of cricoarytenoid joint.
Objective: To study the various etiological factors contributing to vocal cord paralysis.
Materials and methods: Patients with vocal cord paralysis [unilateral and bilateral] who were treated at a tertiary institute for a period of 3 years were included. The immobility of cords was assessed with the use of indirect laryngoscopy via mirror or rigid angled telescopy or flexible laryngoscopy. The patients were categorized based on laterality of paralysis as well as based on various etiological factors into groups. Appropriate statistical analysis was done.
Results: Among 50 patients, 84 % cases had unilateral vocal cord paralysis. Surgical cause was found to be the most common etiology of unilateral vocal cord paralysis (34%) closely followed by idiopathic (18%) and neoplasm (16%). In bilateral vocal cord paralysis, surgical and neurological causes were found to be the main causative factor.
Conclusion: Vocal cord paralysis has a wide range of factors contributing to its occurrence with surgical cause being a common one. A comprehensive assessment of patient should be performed to determine the cause which facilitates a direct treatment plan.
Keywords:Vocal cord paralysis; etiologyb
Abbreviations:VCP: Vocal Cord Paralysis; RLN: Recurrent Laryngeal Nerve; UVCP: Unilateral Vocal Cord Paralysis
Abstract| Introduction| Materials and Methods| Results| Discussion| Conclusion| References|
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