“…The most common complication is postoperative pain that occurs in 30-90% of patients (51,(57)(58)(59)(60)(61)(62)(63). Other early complications such as pneumothorax with required drainage, neurological disorders of upper limbs are encountered rarely, with a frequency not exceeding 5% (51,(57)(58)(59)(60)(61)(62)(63)). Horner's syndrome, significant bleeding, subcutaneous oedema, chylothorax, rupture of subclavian artery, intracostal neuralgia are encountered even less frequently, below 1% of patients subjected to thoracic sympathectomy (4, 20, 28,4 9, 51, 57-63).…”