Comparison of Echo-assisted ALR Technique and Traditional ALR Technique for the Placement of an Epidural Catheter in the Obstetric Patient

"Experimental treatment consists of ultrasound assessment combined with palpatory assessment to identify the most suitable space for epidural catheter insertion.~The conventional neuroaxial technique relies on palpation of the spinous processes and iliac crests to recognize the midline and height of the lumbar interspace to be used to perform a neuroaxial block.~With the echo-assisted technique, in aid of the conventional technique, a preprocedure (Prepuncture) is performed for the purpose of combining classic anatomical findings with useful sonographic findings that should improve the success of the neuroaxial technique."