{"id":"quadratus-lumborum-block","safety":{"commonSideEffects":[{"rate":null,"effect":"Local anesthetic systemic toxicity"},{"rate":null,"effect":"Hematoma or bleeding at injection site"},{"rate":null,"effect":"Infection at injection site"},{"rate":null,"effect":"Nerve injury"},{"rate":null,"effect":"Peritoneal puncture"}]},"_chembl":{"chemblId":"CHEMBL2075042","moleculeType":"Unknown"},"_dailymed":null,"mechanism":{"_ai_source":"claude-haiku-4.5","explanation":"The quadratus lumborum block (QLB) is a peripheral nerve block that targets the plane between the quadratus lumborum muscle and adjacent fasciae in the retroperitoneal space. Local anesthetic is deposited in this anatomical plane to block branches of the thoracolumbar nerves (T6-L1), providing somatic and visceral analgesia to the lower abdomen, flank, and lower back regions. This technique is used perioperatively to reduce pain and opioid requirements.","oneSentence":"A regional anesthesia technique that blocks the quadratus lumborum muscle plane to provide analgesia to the lower abdomen and flank by interrupting nerve conduction.","_ai_confidence":"medium"},"_scrapedAt":"2026-03-27T23:36:48.394Z","_scrapedBy":"cloudflare-swarm","_wikipedia":null,"indications":{"approved":[{"name":"Perioperative analgesia for abdominal and flank surgery"},{"name":"Postoperative pain management for lower abdominal procedures"},{"name":"Chronic pain management in the lower back and flank region"}]},"trialDetails":[{"nctId":"NCT07410000","phase":"NA","title":"Ultrasound-Guided Quadro-Iliac Plane Block for Pain Management After Total Hip Arthroplasty","status":"RECRUITING","sponsor":"Bursa City Hospital","startDate":"2026-03-16","conditions":"Pain Management, Total Hip Arthroplasty","enrollment":100},{"nctId":"NCT07480278","phase":"NA","title":"mTLIP vs QIPB for Postoperative 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