Clinical trial · Interventional
The Effect of Nerve Blocks on Analgesia in Breast Cancer Surgery
Comparison of Postoperative Analgesic Efficacy of Serratus Posterior Superior Intercostal Plane Block and Serratus Anterior Plane Block in Modified Radical Mastectomy Surgery
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
Postoperative pain following modified radical mastectomy remains a significant clinical concern and may adversely affect patient recovery, opioid consumption, and overall patient satisfaction. Ultrasound-guided regional anesthesia techniques have gained increasing importance as part of multimodal analgesia strategies in breast surgery. The serratus anterior plane (SAP) block is a commonly used interfascial plane block for postoperative analgesia in thoracic and breast procedures. Recently, the serratus posterior superior intercostal plane (SPSIP) block has emerged as a novel regional anesthesia technique with potentially wider thoracic dermatomal spread and effective analgesic properties. This prospective randomized controlled study aims to compare the postoperative analgesic efficacy of the SPSIP block and SAP block in patients undergoing modified radical mastectomy under general anesthesia. Patients will be randomly allocated into two groups to receive either ultrasound-guided SPSIP block or SAP block preoperatively. Primary outcomes will include postoperative pain scores and opioid consumption within the first 24 hours after surgery. Secondary outcomes will include time to first analgesic request, rescue analgesic requirements, intraoperative hemodynamic parameters, postoperative nausea and vomiting, block-related complications, and patient satisfaction. The study is designed to evaluate whether SPSIP block provides superior postoperative analgesia compared with SAP block in modified radical mastectomy surgery.
Conditions
Conditions (1)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Breast Cancer Surgery Pain | — | UNRESOLVED | — |
Interventions
Interventions (2)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Serratus anterior plane block (SAP) | Procedure | — | UNRESOLVED |
| Serratus Posterior Superior Intercostal Plane Block | Procedure | — | UNRESOLVED |
Design
Arms and outcomes
Arms (2)
- type
- EXPERIMENTAL
- label
- Serratus Posterior Superior Intercostal Plane (SPSIP) block
- description
- Participants assigned to this group will receive an ultrasound-guided Serratus Posterior Superior Intercostal Plane (SPSIP) block before induction of general anesthesia for modified radical mastectomy surgery. The block will be performed under sterile conditions by an experienced anesthesiologist using ultrasound guidance. Following the regional block procedure, standardized general anesthesia and postoperative multimodal analgesia protocols will be applied. Postoperative pain scores, opioid consumption, rescue analgesic requirements, and perioperative adverse events will be recorded and evaluated.
- interventionNames
- Procedure: Serratus Posterior Superior Intercostal Plane Block
- type
- ACTIVE_COMPARATOR
- label
- Serratus Anterior Plane (SAP) block
- description
- Participants assigned to this group will receive an ultrasound-guided Serratus Anterior Plane (SAP) block before induction of general anesthesia for modified radical mastectomy surgery. The block will be performed under sterile conditions by an experienced anesthesiologist using ultrasound guidance. Following the regional block procedure, standardized general anesthesia and postoperative multimodal analgesia protocols will be applied. Postoperative pain scores, opioid consumption, rescue analgesic requirements, and perioperative adverse events will be recorded and evaluated.
Eligibility
Eligibility (as posted)
- Sex
- Female
- Minimum age
- 18 Years
- Maximum age
- 65 Years
Show eligibility criteria text
Inclusion Criteria: * Female patients aged between 18 and 65 years * American Society of Anesthesiologists (ASA) physical status I-III * Body Mass Index (BMI) \<35 kg/m² * Normal International Normalized Ratio (INR) value and platelet count * Normal liver and renal function tests * Patients scheduled for elective modified radical mastectomy surgery Exclusion Criteria: * Bleeding diathesis * Allergy to local anesthetic agents * Suspected infection or inflammation at the planned block site * ASA physical status IV or higher * Long-term medication use due to chronic pain * Advanced hepatic or renal failure * Presence of severe pulmonary disease * Use of any opioid medication within 24 hours before surgery * Cognitive impairment * Patients undergoing revision surgery
References
Publications (2)
- RESULTArik E, Zengin M, Seker G, Kucuk O, Gungordu E, Ozguner Y, Alagoz A, Ergil J. Is the serratus posterior superior intercostal plane block a viable alternative to the erector spinae plane block for postoperative analgesia in breast surgery? A prospective, randomized trial. BMC Anesthesiol. 2025 Nov 29;26(1):11. doi: 10.1186/s12871-025-03531-y. PMID 41318393
- RESULTBaytar C, Aktas B, Aydin BG, Piskin O, Cakmak GK, Ayoglu H. The effects of ultrasound-guided serratus anterior plane block on intraoperative opioid consumption and hemodynamic stability during breast surgery: A randomized controlled study. Medicine (Baltimore). 2022 Sep 2;101(35):e30290. doi: 10.1097/MD.0000000000030290. PMID 36107549