Lateral QL Block vs Intrathecal Morphine for Cesarean Section

Trial statusNot yet recruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexFemale
Age18-45
SponsorOndokuz Mayıs University

About this trial

Effective postoperative analgesia after cesarean delivery is essential for maternal recovery, early mobilization, breastfeeding, and maternal-infant bonding. Although intrathecal morphine (ITM) is considered the gold standard for post-cesarean analgesia, its use is associated with opioid-related adverse effects. Ultrasound-guided lateral quadratus lumborum block (QLB-I) has emerged as a promising alternative. This randomized, double-blind, non-inferiority trial aims to compare the postoperative analgesic efficacy of lateral QLB-I with ITM. Secondary outcomes include postoperative opioid consumption, pain scores, opioid-related adverse effects, quality of recovery (ObsQoR-11T), and maternal satisfaction.

Eligibility criteria

Qualifiers

Women aged between 18 and 45 years.

Singleton term pregnancy (≥37 weeks of gestation).

American Society of Anesthesiologists (ASA) physical status II.

Scheduled to undergo elective cesarean delivery via a Pfannenstiel incision.

Disqualifiers

Known allergy or hypersensitivity to any of the study medications, including morphine, bupivacaine, or fentanyl.

Coagulopathy (international normalized ratio [INR] >1.5 or platelet count <100,000/mm³).

Current treatment with anticoagulant or antiplatelet agents (e.g., heparin, low-molecular-weight heparin, or aspirin >100 mg/day).

Infection, hematoma, or skin lesion at the planned block insertion site.

Trial design

Treatments tested in this trial

  • Lateral Quadratus Lumborum Block
  • ıv morphine PCA
  • Intrathecal morphine

Treatment groups

56 Participants
are divided into 2 treatment groups

Sponsors and collaborators