Thymectomy is the most frequent surgical operation involving the mediastinum, both for the treatment of thymic tumors and for the multidisciplinary management of myasthenia gravis (MG). Different surgical approaches have been described, either traditional open approaches or minimally invasive ones.Robotic thymectomy represents a further step in the evolution of minimally invasive surgery. Available data show that robotic thymectomy may be considered a safe and feasible operation, with encouraging long-term results in myasthenic patients and promising results in patients with early stage thymoma, both in terms of surgical and oncological outcomes. We present the surgical technique of robotic thymectomy that we apply for patients affected by myasthenia gravis and early stage thymoma. that could be related to MG and to evaluate the serum titer of antibodies against acetylcholine-receptor. If negative, anti-MuSK (muscle specific receptor tyrosine kinase) antibodies should be tested; there is evidence that a positive serum titer of anti-MuSK Ab is predictive of a lesser effect of thymectomy on MG symptoms (14).Anyway, neurological assessment prior to surgery should be always performed to evaluate presence of active or significant symptoms of MG or to optimize the medical treatment. Particularly, the levels of corticosteroids should be decreased, prior to surgery. The risk of post-operative respiratory failure may be reduced by preoperative intravenous immunoglobulin administration or plasmapheresis, particularly in patients with partiallycontrolled symptoms (15,16).Regarding timing for surgery, there isn't a gold standard, but it seems that an early removal of the thymic gland may improve the remission rate (16). Age over 50 years or antibody-negative disease are relative contraindications to thymectomy in nonthymomatous MG (17,18).Moreover, all patients should be evaluated with a contrast-enhanced CT scan of the chest. Magnetic resonance and/or PET-CT scan can also be performed in the suspicion of thymoma or to distinguish between a thymic hyperplasia and a small thymoma.Pre-operative chest X-rays should be performed to evaluate signs of extensive adhesions, related to prior pleuritis or thoracic surgical procedure, which may preclude a robotic approach.Functional assessment should be completed with pulmonary function tests, complete blood examination and electrocardiogram.
Pre-operative preparationThe operation is performed under general anesthesia and the patient is ventilated through a double-lumen endotracheal tube. During procedure, patients are monitored by ECG, arterial line, pulse oximeter and urine output.The patient is placed left or right-side up (based the side of operation), at a 30-degree angle with a bean bag. In leftsided approaches, the left arm is placed parallel to the bed while the right arm is positioned along the body to expose the axillary region (opposite for right-side operations). In the operating room the surgeon console is positioned away from the patient while the video column ...