A Comparative Study Between Magnesium Sulfate Versus Morphine Added to Bupivacaine in Ultra-Sound Guided Transversus Abdominis Plane Block for Post-Operative Analgesia after Inguinal Herniorraphy

Abstract

Poorly controlled acute pain after abdominal surgery is associated with a variety of unwanted post-operative consequences, including patient suffering, distress, respiratory complications, delirium, myocardial ischemia, prolonged hospital stay and an increased likelihood of chronic pain. The analgesic regimen used for postoperative pain control needs to meet the goals of providing safe, effective analgesia, with minimal side effects for the patient, together with inhibition of trauma –induced nociceptive impulses. Many studies have been carried out trying to find a solution for this dilemma thus different pain modalities as local infiltration of the surgical field, systemic analgesia (narcotics and non-narcotics), neuro-axial blocks, and nerve blocks shined out, however each has shown its side effect which limits its use to specific cases. Abdominal field blocks have been extensively used for a variety of surgical procedures for many years. They are simple to perform and have a good safety profile.