Analgesia of Erector Spinae Plane Block Versus Quadratus Lumborum Block

A Comparative Study of Analgesic Effect of Ultrasound Guided Erector Spinae Plane Block Versus Quadratus Lumborum Block for Open Colorectal Cancer Surgeries

Colorectal cancer is the third most common cancer worldwide. These patients usually undergo open surgical resection of cancer under general anaesthesia.

The aim of this study is to detect whether the Erector spinae plan block or Quadratus lumborum block will provide the most ideal analgesia for these patients. Erector spinae plan block is a novel analgesic technique that provides both visceral and somatic analgesia due to its communication with the paravertebral space. Quadratus lumborum block is a truncal nerve block usually used for intra-abdominal surgeries. Ultrasound guidance increases the accuracy and safety of both techniques. A local anaesthetic mixture of Bupivacaine 0.25% and dexamethasone will be used for both techniques.

Erector spinae plane block and quadratus lumborum block are analgesic techniques suitable for open colorectal cancer surgeries. postoperative pain score, serum levels of biomarkers of stress (cortisol and CRP), primary hemodynamics, time to first rescue analgesic request, the total amount of rescue analgesic consumption and postoperative nausea and vomiting are the parameters of comparison between both techniques.

Inclusion Criteria:

• American Society of Anesthesiologists physical status I or II
• Body mass index from 18.5 to 35 Kg/m2

Exclusion Criteria:

• Body mass index more than 35 Kg/m2.
• Severe or uncompensated cardiovascular disease.
• Severe renal disease.
• Severe hepatic disease.
• Severe endocrinal disease.
• Pregnancy.
• Postpartum.
• Lactating females
• Allergy to one of the agents used.
• Refusal to participate in the study.