Erector Spinae Plane Block For Postoperative Analgesia in Patients Undergoing Total Abdominal Hysterectomy

In (ES) group After skin sterilization, ESPB was performed in sitting position at the level of T9 linear ultrasound (US) transducer (Phillips-Saronno Italy) was placed vertically 3cm lateral to midline to visualize the muscles of the back, transverse process and simmering pleura in between the two transverse processes. After local infiltration of needle insertion site with 2-3ml of 2% lidocaine, a 22-gauge Short bevel needle (Spinocan, B.Braun Melsungen AG, Germany) was inserted in cranial-caudal direction towards transverse process (TP) in-plane to the US transducer until needle touched the TP crossing all the muscles. Then, up to 20 ml of bupivacaine 0.5% was injected. The procedure was repeated following the same steps on the other side of back.

in control group, Erector Spinae Plane Block will not be done