A Non Invasive Confirmatory Sign for Correct Epidural Catheter Placement During Normal Vaginal Delivery

after sterilization of the back, local anesthesia injection (xylocaine 5 ml) at lumbar 4-5 level, then advancing the epidural needle till loss of resistance by air occurs and the epidural catheter inserted then aspiration through the catheter will be done to confirm that no accidental cerebrospinal fluid or blood are aspirated and to observe the dew sign inside the outer portion of the epidural catheter near the back of the patient