Analysis of Recurrent Laryngeal Nerve Trauma during Operation of Thyroidectomy

Objective To analyze the reason of recurrent laryngeal nerve traumas during the operation of thyroidectomy.Methods To retrospectively study 215 cases with thyroid disease underwent thyroidectomy,the incident rates of laryngeal nerve traumas were compared between the group 1 of exposure of recurrent laryngeal nerve during the procedure of thyroidectomy(141 cases) and the group 2(74 cases).Results The rate of temporary recurrent laryngeal nerve traumas was 5.6% and the rate of permanent recurrent laryngeal nerve traumas was 1.3% in group 1.The rates were 4.8% and 3.5% respectively in the group 2(P0.05).The incidence rate of temporary recurrent laryngeal nerve injuries was no difference in 2 groups,but the incidence rate of permanent recurrent laryngeal nerve traumas in group 1 was lower than that in group 2(P0.05).Conclusion The primary reasons of recurrent laryngeal nerve trauma during the operation of thyroidectomy were the variation of anatomy,the procedure of thyroidectomy and the conglutination of tissue.Exposure of recurrent laryngeal nerve trauma during the operation of thyroidectomy should be selected.