Traditionally, loss-of-resistance (LOR) to air or saline with a special ground-glass syringe is the technique used to identify epidural space, but failure rates up to 30% have been reported using this technique for thoracic epidural placement. This failure rate has sparked the search for newer techniques to improve the success rate for placement.The CompuFlo epidural system is a device that provides anesthesiologists and other healthcare providers the ability to quantitatively determine and document the pressure at the needle tip in real time. The device's proprietary dynamic pressure sensing technology (DPS) allows it to provide objective visual and audible in-tissue pressure feedback that allows anesthesiologists to identify the epidural space. The purpose this research study is to compare the success rate of the two different approaches (traditional method v/s CompuFlo assisted) to thoracic epidural placement.
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Number of Participants With Successful Thoracic Epidural Catheter Placement
Timeframe: Maximum 20 minutes post administration of epidural test dose