Comparıson of Analgesıc Effıcacy of Dıfferent Volumes of Serratus Posterior Superıor Intercostal Plane Block After Modıfıed Radıcal Mastectomy Surgery

The aim of researchers is to compare the effects of three different local anesthetic concentrations and volumes on opioid consumption, postoperative analgesic efficacy, and pain scores during ultrasound-guided SPSIP blocks in patients undergoing modified radical mastectomy. Additionally, we aim to map and identify the dermatomal areas where different concentrations and volumes of SPSIP blocks provide analgesia.

NCT Number	NCT07670078
Lead Sponsor	Cumhuriyet University
Conditions	Modified Radical Mastectomy, Post Operative Pain, Acute, Facial Plane Blocks
Enrollment	90 participants
Start Date	2026-08-15
Primary Completion	2027-08-15 (estimated)
Study Completion	2027-08-30 (estimated)
Updated on ClinicalTrials.gov	2026-08-07