Abstract：Objective To determine the protective effect of exposing the recurrent laryngeal nerve(RLN) during thyroidectomy. Metholds This is a perspective cohort study. The patients, admitted between January 2007 and December 2010, were divided into two groups according to whether exposed the RLN. The main end point was the incidence of RLN injury within 6 months. Results 327 patients were included in this study, with the follow-up more than 6 months in 307 patients. The incidence of RLN injury was 3.2%. The incidence of RLN injury in exposing and non-exposing groups was 3.0%(temporary 2.42%, permanent 0.61%) and 3.5%( temporary 2.82%, permanent 0.70%), respectively. There was no significant difference between these two groups. Conclusions RLN exposure leads no increase in the incidence of RLN injury. Exposure of the RLN should be routinely done in the era of lobectomy.
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2015, Vol. 26 
