Ultrasound Guided Quadratus Lumborum Block Versus Transversus Abdominis Plane Block as Postoperative Analgesia in Patients Undergoing Abdominal Cancer Surgery.

  • End date
    Dec 15, 2023
  • participants needed
  • sponsor
    Mansoura University
Updated on 7 October 2022
Accepts healthy volunteers


Abdominal surgery is usually associated with severe postoperative pain. The transverse abdominal plane (TAP) block is considered an effective means for pain control in such cases. The quadratus lumborum (QL) block is another option for the management of postoperative pain.

The aim of this study is to evaluate the efficacy and safety of quadrates lumborum blocks and Transversus abdominis plane blocks for pain management after abdominal cancer surgery.


Postoperative pain is severe in patients undergoing abdominal surgery, and severe pain not only affects the rate of recovery of patients but also induces a series of pathophysiological reactions. Therefore, it is very important for perioperative patients to have a safe and effective pain management model. Although classic postoperative analgesia methods can provide effective pain relief after surgery, their administration has a well-defined risk of side effects. Recently, with the rise in enhanced recovery after surgery, nerve blocks have become the key link in multimodal analgesic regimes.

As effective constituents of multimode analgesia, quadratus lumborum (QL) block and transversus abdominis plane (TAP) block are mainly used for postoperative analgesia in abdominal surgery.

Aim of this study is to compare between the analgesic effecacy of quadrates lumborum block and transverses abdominal plane block

Condition Abdominal Cancer
Treatment quadratus lumborum, transversus abdominis plane
Clinical Study IdentifierNCT05533424
SponsorMansoura University
Last Modified on7 October 2022


Yes No Not Sure

Inclusion Criteria

Patients included in the study, aged 20-60 years
with ASA Physical Status Class I and II
scheduled for abdominal cancer surgery under general anesthesia

Exclusion Criteria

infection at injection site
allergy to local anesthetics
coagulation disorders
physical or mental diseases which could interfere with the evaluation of pain scores
kidney failure or liver failure
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