Laryngeal Nerve Paralysis; A Statistical Review of 365 Cases.:A Statistical Review of 365 Cases

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We performed a clinical, statistical review on 365 cases of laryngeal nerve paralysis (LNP) referred to our clinic between January 1983 and December 1996. There were 238 males and 127 females, including 16 and 9 cases of bilateral paralysis, respectively. The causes of the paralysis were non-surgical in 211 cases (idiopathic in 118, lung cancer in 19, cerebrovascular disease in 16, mediastinal tumor in 9, thyroid cancer in 9, neck tumor in 9, esophageal cancer in 8, aortic aneurysm in 8 and 15 others, whereas 154 cases were due to surgical operations (esophageal surgery in 47, lung surgery in 31, thyroid surgery in 27, intubation in 24, cardiovascular surgery in 13, neck surgery in 7 and 5 others). The left vocal fold was more commonly affected and the paralyzed vocal fold was fixed in a paramedian position in the majority of the cases. Aspiration was observed in 94 out of the 365 cases (25.8%). Aspiration was also noted in 3 out of 3 neck injury cases, 23 out of 47 esophageal surgery cases and 4 out of 7 neck surgery cases had a high risk for aspiration. Transcutaneous intracordal silicon injection has been the main option for the surgical treatment of unilateral LNP in our clinic. However, silicon injections are becoming controversial because of the decision of the Food and Drug Administration with respect to breast-implans in 1992. Therefore, other methods such as autologous fat injection or thyroplasty have been replacing silicon injections in recent years.
耳鼻咽喉科臨床学会の論文

Laryngeal Nerve Paralysis; A Statistical Review of 365 Cases.:A Statistical Review of 365 Cases

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