Ultrasound Guided Erector Spinae Plane Block vs External Oblique Intercostal Plane Block for Nephrectomy

Ultrasound Guided Erector Spinae Plane Block vs External Oblique Intercostal Plane Block for Postoperative Analgesia in Patients Undergoing Subcoastal Nephrectomy: A Randomised Trial

The patients will be randomly allocated into two equal groups using a computer program.

Group A: will receive U S guided external oblique intercostal block after induction.

Group B:

Patients will receive US guided erector spine block after induction.

Patients will be premedicated with IV midazolam (0.05 mg/kg). Under standard monitoring including Electrocardiography, Non-Invasive Blood Pressure, and Pulse Oximetry. General Anesthesia will be induced with Fentanyl (1-2 μg/kg), Propofol (2-3 mg/kg), and Atracurium (0.5-0.8 mg/kg). Pressure controlled Volume guarantee Ventilation mode will be used to maintain O2 Saturation Above 98%. Anesthesia will be maintained with Isoflurane 1.2 Minimum Alveolar Concentration inhalation

Inclusion Criteria:

• Eligible patients will be older than 21 years old with American society of anesthesiology ASA physical status I& II&III scheduled for elective (Subcostal) Nephrectomy

Exclusion Criteria:

• Patients who are:
• Uncooperative.
• Having allergy to any of the study drugs.
• Known abuse of alcohol or medication.
• Having Local infection at the site of injection or systemic infection.
• Pregnancy.
• With coagulation disorders or on anticoagulation therapy.