[Temporary and permanent recurrent laryngeal nerve paralysis following thyroid surgery. Modifying factors: the...

17 of 525 patients (3.2%) showed an laryngoscopically established palsy of the recurrent laryngeal nerve after surgery for struma. The analysis of these operations, performed by five surgeons during or within three years after the period of surgical training, revealed that the operations performed under assistance of the senior surgeons were high grade selected (p = 0.026). Thus 14.8% of the operations performed because of simple goiter but only 4.8% of the operations performed because of thyroid cancer/recurrent goiter/extensive nodular goiter were assisted in this way. On the other hand it was necessary to call for help of a senior surgeon because of intraoperative difficulties in only 1.26% of the cases operated on for simple goiter, but in 19.6% of the more complex forms of goiter (p less than 0.001). The risk of recurrent laryngeal nerve palsy was nearly 10 times higher in the complex forms of goiter than in the simple forms (p less than 0.001). More extensive surgical training in the forms of complex goiters should be able to improve the results.