الفهرس 
Pathophysiology of Pain
Vasopressin or Antidiuretic hormone (ADHOnly 14 pages are availabe for public view
 |  | from | 104 |  |  |
| | | from | 104 | | |
Abstract
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 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.
In order to blunt the autonomic and somatic reflex responses to pain and to enhance subsequent restoration of the function of different body-organs as breathing, coughing, and moving easily, together with resumption of oral feeding, and early hospital discharge.
Many studies have been carried out trying to find a solution for these 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.
The aim of this study is to assess the postoperative analgesic efficacy of continuous transversus abdominis plane (TAP) block using Accufuser compared to patient-controlled injection after caesarean section regarding the pain relief and the amount of local anesthetic used.The study was conducted on 50 randomly chosen patients in Ain Shams University Hospitals after approval of the medical ethical committee. They were allocated in two groups of 25 patients each: Patient controlled analgesia Group: received general anaesthesia and bupivacaine bolus 1 mg/kg (0.25%) and 0.25 mg/kg (0.125%) as rescue analgesia at (VAS) > 5 through the catheters in each side.