Ultrasound-guided Erector Spinae Block Versus Quadratus Lumborum Block for Postoperative Analgesia in Laparotomies: Randomized Controlled Study

Postoperative pain management is one of the most important issues influencing the outcome of surgery. Postoperative pain, especially when poorly controlled, results in harmful acute effects such as adverse physiological responses and chronic effects like delayed long term recovery and chronic pain.the investigators aimed to compare the effect of ESP block and QL block in preventing postoperative pain and decreasing analgesic consumption in patients scheduled for laparotomies.

Primary outcome:

Total analgesic consumption in the first 24hrs postoperative.

Secondary outcomes:

1. Time of first analgesic request.
2. Visual analogue pain score in the first 24hrs postoperative
3. Incidence of any side effects. All patients will be premedicated using midazolam 0.03 mg /kg iv upon arrival to the operating room then standard monitoring which included SPO2, ECG, non-invasive blood pressure monitoring will be applied. All patients will receive the same anesthetic technique. Following anesthesia induction using 1-2 mcg/kg fentanyl, 2- 3 mg/kg propofol, and 0.5 mg/kg atracurium, the patients will be intubated and maintenance of anesthesia will be done by Isoflurane (MAC 1.2) and intermittent doses of atracurium to maintain adequate muscle relaxation. All hemodynamics will be measured before and after induction of general anesthesia and then every 5 min till end of surgery.