Analgesic Effect of Quadratus Lumborum Block in Laparoscopic Hemicolectomy

Analgesic Effect of Quadratus Lumborum Block in Laparoscopic Hemicolectomy

Comparison of the effectiveness: Quadratus lumborum (QL) block by levobupivacaine with placebo.

All patients will receive standard anaesthesia using fentanyl, protocol, cisatracurium and sevoflurane. Prevention of nausea and vomiting is performing using Apfel score.

All patients will receive post operative multimodal analgesia using paracetamol, ketoprofen, tramadol, and trimeperidine if numerical rating scale > 3 The study assumes use of QL block by levobupivacaine.in comparison with placebo in order to demonstrate the effectiveness of QL block during the operation.

Inclusion Criteria:

• Patients who have undergone left-sided or right-sided laparoscopic hemicolectomy.
• Patient's willingness and ability to sign an informed consent document

Exclusion Criteria:

• Allergy to local anesthetics
• Chronic pain syndrome and associated opioid use.
• Coagulopathy
• Uncontrolled diabetes mellitus
• Physical Status Classification System scale above 3
• Diseases associated with the pathology of the hypothalamus
• Diseases associated with the pathology of the pituitary gland
• Diseases associated with the pathology of the adrenal glands