IRCT20230819059186N1 IRCT 2023-08-25 Combined Military Hospital Rawalpindi Pakistan THE USE OF ASSISTED PRE-PROCEDURAL ULTRASONOGRAPHY VERSUS LANDMARK TECHNIQUE IN IDENITIFYING EPIDURAL SPACE IN WOMEN REQUESTING LABOR ANALGESIA THE USE OF ASSISTED PRE-PROCEDURAL ULTRASONOGRAPHY VERSUS LANDMARK TECHNIQUE IN IDENITIFYING EPIDURAL SPACE IN WOMEN REQUESTING LABOR ANALGESIA 2023-04-18 anticipated 250 Complete https://irct.ir/trial/72166 observational Randomization: N/A, Blinding: Not blinded, Placebo: Not used, Assignment: Single, Purpose: Health service research. N/A Labor Analgesia. Intervention 1: Intervention group 1: Patients in Group L followed the standard blind landmark technique for insertion of the epidural catheter in the L4-L5 space under strict aseptic measures in the procedure room in the sitting position. In case of dural puncture, the space above was then identified and epidural was inserted. Intervention 2: Intervention group 2: Patients in Group U were also prepped in the recovery room under aseptic measures for the USG procedure. A standard curvy-linear probe was placed and the parasagittal view of the L5-S1 space was identified and L4-L5 space was identified by counting upwards. After correct placement and confirmation of the space, the probe was then rotated, and the transverse view was obtained. Epidural space was then identified between the ligamentum flavum and dural space. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is Will be decided in due course of time after permission from institution concerned