Bilateral Ultrasound Guided Intramuscular Quadratus Lumborum Plane Block Versus Bilateral Lateral Quadratus Lumborum Plane Block in Controlling Postoperative Pain in Cancer Patients Undergoing Open Nephrectomy

Summary

This study aims to evaluate the efficacy of bilateral ultrasound-guided intramuscular quadratus lumborum plane block (QL4) versus bilateral lateral quadratus lumborum plane block (QL1) in controlling postoperative pain in cancer patients undergoing open nephrectomy.

Eligibility

Inclusion Criteria:

* Age from 18 to 65 years.
* Both sexes.
* American Society of Anesthesiology (ASA) physical status II-III.
* Body mass index (BMI): (20- 40) kg/m2.
* Type of surgery: midline incision for unilateral open nephrectomy.

Exclusion Criteria:

* Patient refusal.
* Age \<18 years or \>65 years
* BMI \<20 kg/m2 and \> 40 kg/m2
* Known sensitivity or contraindication to drugs used in the study
* Contraindication to regional anesthesia, e.g. local infection at the introduction site, pre-existing peripheral neuropathies and coagulopathy.
* Physical status ASA IV
* Patients on chronic analgesic therapy (daily morphine ≥30 mg or equivalent dose of other opioids or tramadol or any medication for neuropathic pain)
* Patients with a history of drug abuse
* Patients with neuropsychiatric diseases; patients with a history of chronic pain syndromes that may enhance sensitivity to pain, for example, fibromyalgia
* All patients who are going to have severe intra- or post-operative bleeding or will require postoperative mechanical ventilation are also excluded from the study.

Conditions8

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