Erector Spinae Plane Block in Uniportal VATS

In the c-ESPB group an ultrasound-guided ESPB will be performed by the attending anaesthesiologist at the end of surgery, immediately after the last surgical stitch and before extubation. After an initial bolus of 20 ml 0,2% ropivacaine, a catheter will be left in place into the fascial plane deep to the erector spinae muscle to ensure continuous infusion (5ml/h for 48 hours) of the local anesthetic.

In the c-SAPB group SAPB will be performed by surgeons intraoperatively, immediately before the closure of chest wall muscle planes, by injection of 20 ml 0,2% ropivacaine into the fascial plane above the Serratus Anterior muscle. After the initial bolus, a catheter will be left in place into the superficial fascial plane of the Serratus Anterior muscle to ensure continuous infusion (5ml/h for 48 hours) of the local anesthetic.

"In the ICNB-group ICNB will be performed by surgeons intraoperatively, immediately before chest drain placement, by injection of 20 ml of 0,2% ropivacaine into the intercostal spaces (III-VII), below the parietal pleura, under direct visualization of the neurovascular bundle. The one-shot ICNB will be associated in this group with intravenous administration of tramadol (300 mg/48 h) by elastomeric pump."