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EN
The aim of the study was to present a clinical picture, treatment and prognosis regarding patients who developed acute respiratory failure (ARF) while treated surgically for a goiter. Material and methods. A total of 3810 patients were treated for goiters between 2008 to 2013. Symptoms of postoperative ARF were recognized in 39 (1%) patients. Results. Symptoms of postoperative ARF were a postoperative hemorrhage in 31 (79.4%), lymphorrhagia in 1 (2.6%), bilateral paralysis of recurrent laryngeal nerves in 6 (15.4%) and acute circulatory – respiratory failure in 1 (2.6%). Postoperative hemorrhage appeared in 19 patients operated for nodular goiter, 4 with a retrosternal nodular goiter, 1x nontoxic recurrent retrosternal nodular goiter, 1x toxic recurrent retrosternal goiter nodular goiter, 2x Graves'goiter and 4x with malignant goiter. The cause of hemorrhage was parenchymal bleeding from the stumps and / or short neck muscles (29x), arterial bleeding (1x) and bleeding into the subcutaneous tissue (1x). Massive lymphorrhagia appeared as a result of damage to the thoracic duct after total thyroidectomy due to papillary thyroid carcinoma with cervical lymph node dissection on the left side. All patients who were diagnosed with bilateral paralysis of RLN, tracheostomy was performed. Of all 39 patients who underwent surgery two died – one in 6 days after surgery due to myocardial infarction, and another as a result of micropulmonary embolism and acute circulatory – respiratory failure in 18 hours after surgery. Conclusions. 1. The most frequent causes of acute respiratory failure in postoperative period are a hemorrhage from the operation site and bilateral paralysis of recurrent laryngeal nerves. 2. Acute postoperative respiratory failure is an indication for postoperative wound revision
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Non-Recurrent Laryngeal Nerve

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EN
The aim of the study was to assess the frequency of non-recurrent laryngeal nerves (Non-RLN). Material and methods. A total of 6110 patients were operated in our hospital between 1 January 2005 and 31 December 2013 for various goiters (5429) and various types of hyperparathyroidism (618). Laryngeal nerve was exposed during operation in 1700 patients from superior aperture of the chest to superior aperture of the larynx. Identification process of RLN was started with dissecting inferior thyroid artery (ITA) and its junction with the nerve. Then main trunk of the nerve was exposed backwards till the region of superior aperture of the chest together with the end portion till the nerve outlet to the larynx. Results. In the group of 1700 patients, RLN was exposed bilaterally in 1400 (82.4%) and unilaterally in 300 (17.6%). In the group of 3100 dissected RLNs the course of RLN was observed on the right side in 1710 patients and on the left in 1390. Irreversible nature RLN was shown in four cases (0.1%) – four women (02%) aged 42-55 (mean 49.3) – three operated for non-toxic nodular goiter and one for primary hyperparathyroidism. Each time the Non-RLN was seen on the right side. The other patients manifested recurrent character RLN. Moreover, interstitial course of RLN was found on the left side in one man. Conclusion. Non recurrent laryngeal nerve is a rare anatomical variation, occurring more frequently on the right side. Surgeon during surgery of the thyroid and parathyroid glands should be aware of its existence to avoid damage.
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