Fluoroscopy-guided Versus Traditional Placement of Epidural Catheters

Device: Fluoroscopy Patients lie prone on X-ray compatible operating table and an X-ray device obtains X-ray images of epidural catheter placement. An epidural catheter is placed with local anesthesia as a needle that is advanced into the epidural space. A catheter is then placed through the needle to the desired location and the needle is removed. After the catheter is placed, a test dose of 1.5% lidocaine with 5ug/cc epinephrine is injected into the catheter to exclude intravascular placement. Following this, a continuous infusion of 1/8% bupivacaine is started at 4ml/hr. After surgery, the bupivacaine infusion may be adjusted with bolus injections of 2ml and/or increase in the infusion rate by 2ml/hr up to a maximum of 14ml/hr

An epidural catheter is placed before surgery with the patient sitting at bedside. The catheter is placed with local anesthesia using indirect indicators of proper placement: depth of needle insertion and ability to inject solution through the needle ('loss of resistance'). After needle placement in the epidural space, an epidural catheter is threaded through the needle 3-4 cm and the needle removed. After catheter is placement, a test dose of 1.5% lidocaine with 5ug/cc epinephrine is injected into the catheter to exclude intravascular placement. Following this, a continuous infusion of 1/8% bupivacaine is started at 4ml/hr. After surgery, the bupivacaine infusion may be adjusted with bolus injections of 2ml and/or increase in the infusion rate by 2ml/hr up to a maximum of 14ml/hr.