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RECRUITING Not applicable ClinicalTrials.gov

SPSIP Block Versus ESP Block for Chronic Pain After Unilateral Breast Surgery

Sponsor: Engin Çetin • ClinicalTrials.gov ID: NCT07674836

Registry updated: 2026-09-30
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Description

This prospective, randomized, assessor-blinded study will compare serratus posterior superior intercostal plane block and erector spinae plane block in adult female patients undergoing unilateral breast surgery. The primary outcome is chronic postoperative pain at 3 months, assessed using the Brief Pain Inventory-Short Form.

Interventions

  • Serratus Posterior Superior Intercostal Plane Block (Procedure)
    An ultrasound-guided interfascial plane block performed between the serratus posterior superior muscle and the underlying ribs prior to general anesthesia.
  • Ultrasound-guided Erector Spinae Plane Block (Procedure)
    An ultrasound-guided erector spinae plane block performed prior to induction of general anesthesia using 30 mL of 0.25% bupivacaine.

Eligibility criteria

Inclusion Criteria: * Female patients aged 18-65 years * ASA physical status I-III * Body mass index (BMI) between 18 and 35 kg/m² * Scheduled for elective unilateral breast surgery (mastectomy with or without sentinel lymph node biopsy) * Ability to understand and provide written informed consent Exclusion Criteria: * Infection at the site of block application * Known allergy to local anesthetics * Coagulopathy or anticoagulant therapy * Chronic opioid use * Pregnancy * Inability to communicate or cooperate * Refusal to participate * Failed block * Requirement of additional intraoperative analgesia outside the study protocol * Development of serious intraoperative complications

Conditions

Postoperative Pain Opioid Use

Locations

  • University of Health Sciences Kocaeli City Hospital — İzmit, Kocaeli, Turkey (Türkiye)
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Official Source

Data sourced from ClinicalTrials.gov, a service of the U.S. National Institutes of Health.

View Official Record