A clinical study on vocal cord paralysis in a tertiary health care setup in Andhra Pradesh, South India
Introduction: Vocal cords (VCs) are delicate structures situated in the larynx and controlled by a number of muscles. A study was conducted to elucidate the symptoms and signs of VC paralysis and to identify the muscles involved and various systemic illnesses that cause VC paralysis.
Methods: It was a cross-sectional, clinical study, conducted in the department of ENT, GSL Medical College, Rajahmundry. Individuals aged 15 to 75 years, who were cooperative for clinical examination were considered. Extremes of age, unwilling, critically ill, persons with Pulmonary Tuberculosis, HIV positive individuals were excluded. Meticulous tabulation of the symptoms and a thorough history was recorded. Detailed ENT examination including indirect and video laryngoscopy was performed on these patients.
Results: A total of 38 individuals with VC paralysis were included. Gender wise, the male-female ratio was 0.9. Left VC palsy was identified in maximum persons (63.2%). The age group of 41-60 years is common (47%). In left VC palsy, dyspnoea (31.6%) was most common. Among the etiological factors, lung lesions and idiopathic cases accounted for 23.68% each.
Conclusion: Fourth to the sixth decade of life is the commonest age group, females are commonly involved. Left VC paralysis accounted for the maximum number of cases. Hoarseness of voice and dyspnoea are the major symptoms and in about 23.68% cause of paralysis was not known (idiopathic).
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