Ultrasound-guided Multilevel Erectorspinae Plane Block Versus Thoracic Epidural Analgesia for Prevention of Post Mastectomy Pain Syndrome for Breast Cancer Patients

"Erector spinae plane block (ESPB) using multilevel injections of bupivacaine 0.25%.~We will inject 15ml at the level of T2 and 15ml at the level of T5."

Thoracic epidural block at level of T5 -T6 using 10 ml of bupivacaine 0.25% as a bolus followed by 5 ml bupivacaine 0.25% every 1-2 hours depending on the duration of surgery and the response of the patient.