The goal of this study is to compare the analgesic efficacy of ultrasound-guided transversus abdominis plane (TAP) block versus erector spinae plane block (ESPB) in adult patients undergoing laparoscopic renal surgeries. Forty adults (18-60 years, ASA I-II) will be randomly assigned to receive either TAP or ESPB after induction of general anesthesia. Postoperative pain will be assessed using the Visual Analogue Scale (VAS) and total fentanyl consumption over 24 hours. Secondary outcomes include time to first analgesic request, hemodynamic parameters, patient satisfaction, and incidence of complications. The study will be conducted at Cairo University Hospitals following ethical approval, with all patients providing written informed consent.
Age from 18 to 40 years old.
Both sexes.
American Society of Anesthesiology (ASA) physical status I, II.
Scheduled for laparoscopic renal surgeries under general anesthesia
Parent's refusal.
Coagulation disorders.
History of allergy to local anesthetics.
Infection or redness at the injection site.
Parallel
TAP Block
Procedure/Surgerya bilateral ultrasound guided TAP block performed by injecting 20 ml of 0.25% bupivacaine into the TAP space after negative aspiration. a bilateral ultrasound guided ESP block performed by injecting 20 ml of 0.25% bupivacaine into the ESP space after negative aspiration.
Total fentanyl consumption.
Total fentanyl consumption in the first 24 hours (μg-microgram) postoperative.
Time to first rescue analgesia.
Time elapsed from the end of surgery until the patient requires the first dose of rescue analgesia.
Postoperative Pain scores.
pain assessment using Visual Analog Scale (VAS) score: pain level scored from 0 (no pain) to 10 (worst imaginable pain).
Hemodynamic Parameter Heart rate
Heart rate
Hemodynamic Parameter
mean arterial blood pressure
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