Conclusion
The US-ESPB which is mainly used as an antalgic rather than anaesthesiology block, represents a valid anaesthetic alternative for thoracic wall operations whose patients have contraindications to the GA without clinically disrupting the respiratory mechanism and without determining any hemodynamic impact.
In our opinion the direction of the needle is fundamental to address the spread of the anesthetic mixture. In our clinical case the choice of the cranial caudal approach was well considered before performing the procedure. The position of the patient is quite important for the execution of the block. According to our experience the sitting position is the best in terms of simplification of the technique.