An interventional study of Auricularis Magnus Nerve Block and Control Group in Post Operative Pain and Analgesia, sponsored by Kocaeli University. Recruiting at 1 site in Turkey (Türkiye). Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-08-05.
Sponsored by Kocaeli University · Not applicable, Interventional, and Diagnostic
Middle ear surgery is the most popular procedure in ear, nose and throat surgery. Increased sympathetic stimulation after surgery can activate the sympathetic system, causing hypertension and increased heart rate. As a result of these clinical conditions, hemorrhage can occur, which can impair the quality of the surgical field, which is undesirable in middle ear surgery.Clinical studies should be conducted with auricularis magnus nerve block applied in the perioperative period in middle ear surgery and postoperative pain scores.
Middle ear surgery is the most popular procedure in ear, nose and throat surgery. Increased sympathetic stimulation after surgery can activate the sympathetic system, causing hypertension and increased heart rate. As a result of these clinical conditions, hemorrhage can occur, which can impair the quality of the surgical field, which is undesirable in middle ear surgery.Ultrasound-guided auricularis magnus nerve block can be used as a potential solution to these problems. Ultrasound-guided peripheral nerve block can be visualized. It is appropriate and applicable to block a single distal nerve with a small dose of local anesthetic under ultrasound guidance. Ultrasound-guided blocking of the blocked area has reduced side effects with increased accuracy and accurate analgesic effect.
In middle ear microsurgery, the nerve innervation of the postauricular incision area may not primarily originate from the auricularis magnus. Therefore, clinical studies should be conducted with auricularis magnus nerve block applied in the perioperative period in middle ear surgery and postoperative pain scores.
5,640 studies on the registry are indexed under Pain, Postoperative; 1,230 are open to participants now.
This study's planned enrollment of 56 is below the median of 75 across 4,821 interventional studies indexed under Pain, Postoperative.
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Exclusion Criteria:
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The anaesthetists’ scale of health before surgery: I is healthy, II has a mild illness that is under control, III a severe one, IV a severe illness that is a constant threat to life. V and VI are used for the critically ill and for organ donors.
ASA physical status
The anaesthetists’ scale of health before surgery: I is healthy, II has a mild illness that is under control, III a severe one, IV a severe illness that is a constant threat to life. V and VI are used for the critically ill and for organ donors.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Ultrasound (US) -guided Auricularis Magnus Nerve Block with 5 ml 0.5 % bupivacaine will performe preoperatively to all patients in the AMG group.
Procedure: Auricularis Magnus Nerve Block
In the control group, patients will be administered intravenous analgesics of 1 gram paracetamol, 20 mg tenoxicam, and 8 mg ondansetron 30 minutes before the end of the operation, as stated in the patient protocol, during their follow-up after general anesthesia.
Procedure: Control Group
Auricularis Magnus Nerve block will be performed using 5 mL of %0.5 bupivacaine
Intravenous analgesics 1 gram paracetamol, 20 mg tenoxicam, 8 mg ondansetron will be administered.
Opioid consumption
Intraoperative opioid consumption
Time frame: During the operation
Morphine consumption
Postoperative morphine consumption
Time frame: 1 hours after surgery(T1), 6 hours after surgery (T2), 12 hours after surgery (T3), 24 hours after surgery (T4)
NRS Scores
NRS scores of the patients after the surgery (0=no pain, 10=worst pain imaginable)
Time frame: 1 hours after surgery(T1), 6 hours after surgery (T2), 12 hours after surgery (T3), 24 hours after surgery (T4)
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