Sub-Paraspinal Block in Nuss Patients. A Pilot Project

Treatment group received bilateral ultrasound-guided placement of multi-perforated soaker catheter at sub-paraspinal location. Catheter position was considered adequate when live ultrasound imaging confirmed placement directly over the rib surface and lateral to the transverse process at the T2-T10 level. An infusion of ropivacaine 0.2% was started via the On-Q infusion system at a rate of 0.25 mg/kg/hour per catheter (maximum of 8 ml/hr catheter \[maximum pump infusion rate\]). The local anesthetic infusion was stopped on post-operative day number 3 and the catheters removed.

Patients received intravenous PCA post-operatively