Epidural Computer Controlled System for the Epidural Space Verification

The purpose of this study will be to evaluate the inter-rater agreement, or concordance, between an expert anaesthesiologist and the CompuFlo® Epidural Computer Controlled System for the epidural space verification. Primary study endpoint will be successful concordance of identification of ligamentum flavum and epidural space during a standard epidural procedure in pregnant patient. Secondary outcome will be successful concordance of identification of bony contact during a standard epidural procedure in pregnant patient.