Quadriplegia after interscalene block for shoulder surgery in sitting position.

gas samples were obtained and neither hypercarbia nor hypoxia occurred at both sides of single-lung ventilation. Video-assisted thoracic surgery was successfully performed and the surgeon satisfaction was very good. The patient was extubated without complications and transferred to the postoperative anaesthesia care. No discomforts like sore throat or minor injuries at the trachea were detected. We think that the development of a smaller EZ-Blocker could help anaesthetic management for paediatric thoracic surgerya lot and further clinical studies could improve EZ-Blocker administration.