One hundred and ninety four cases of the vocal cord paralysis from January 1973 to December 1985 were analysed on etiology, clinical findings, diagnosis, and management.
The results were as follows ;
1) Among 194 cases, by sex distribution, the male were 112 cases (57.7%) and the female 82 cases (42.3%). By age distribution, most of the cases (161 cases;83. 0%) were from 3rd decade, to 7th decade.
2) In etiology, 64 cases (33.0%) were by the unknown origin, 30 cases(15.5% ) by the surgical trauma, 26 cases (13.4%) by the neoplasm, 25 cases (12.9%) by the non-surgical trauma, 15 cases (Z7%) by the mechanical origin, 7 cases (3.6 %) by the inflammatory origin, and 5 cases (2.6%) by the central origin.
3) In laterality of the paralysed vocal cord, 108 cases (55.7%) were in the left cord, 60 cases (309%) in the right cord and 26 cases (13.4%) in both cords.
4) In position, most of the cases (134 cases ; 69.1%) were in the paramedian position
5) In chief complaints, most of the cases (142 cases; 73.2%) had hoarseness only:
6) Among 194 cases, 145 cases were lost during follow-up period. 40 cases were surgically managed and 9 cases spontaneously recovered. Thyroplasty was performed in 12 cases (24.5%), Teflon injection in 10 cases (20.4%), both of thyroplasty and Teflon injection in 2 cases (4.1%), tracheostomy in 13 cases (26.5%),endolaryngeal arytenoidectomy in 3 cases (6.1%), and spontaneous recovery was observed in 9 cases (18.4%).
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