Lumbar Dural Sac Dimensions Determined by Ultrasound Helps Predict Sensory Block Extent During Combined Spinal-Epidural Analgesia for Labor

Abstract

The length of the lumbar spine determined by ultrasound, rather than the lumbar spine volume, combined with the weight or body mass index of the subject, is of particular value in predicting the intrathecal spread of isobaric bupivacaine during CSE analgesia for labor.