Transverse vs. Longitudinal Serratus Anterior Plane Block in Breast Surgery
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Transverse SAP Block, Longitudinal SAP Block.
- Who it may be relevant to
- Registry conditions: Fascial Plane Block, Pain, Postoperative, Breast Surgery, Acute Pain. Basic parameters: 18 years — 65 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Turkey (Türkiye)
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
Unsure about the terms? Read our patient guide →
Official title
Efficacy of Transverse Versus Longitudinal Ultrasound Probe Orientation for Serratus Anterior Plane Block on Postoperative Pain in Breast Surgery: A Prospective Randomized Controlled Trial
Overview
The aim of this prospective, randomized controlled trial is to compare the analgesic efficacy of transverse versus longitudinal ultrasound probe orientations during Serratus Anterior Plane (SAP) block in patients undergoing breast surgery. The study hypothesizes that the longitudinal approach (probe parallel to the ribs) may provide better craniocaudal spread of the local anesthetic, thereby resulting in lower postoperative Visual Analog Scale (VAS) scores and reduced opioid consumption compared to the standard transverse approach.
Interventions
- Procedure Transverse SAP Block
Transverse serratus anterior plane block will be performed on the patients using 20 mL of 0.375% bupivacaine under ultrasound guidance. - Procedure Longitudinal SAP Block
Longitudinal serratus anterior plane block will be performed on the patients using 20 mL of 0.375% bupivacaine under ultrasound guidance.
Primary outcome measures
- Postoperative Pain Intensity [Time frame: 4 hour after surgery]
Secondary outcome measures (5)
- Postoperative Pain Intensity [Time frame: Up to 24 hours]
- Postoperative Pain Intensity [Time frame: Up to 24 hours]
- Total Postoperative Opioid Consumption [Time frame: Up to 24 hours]
- Area Under Curve for Pain [Time frame: Up to 24 hours]
- Assessment of Sensory Blockade Extent [Time frame: Evaluated at 20 minutes following block administration.]
Eligibility criteria
Inclusion criteria
- Patients aged between 18 and 65 years
- American Society of Anesthesiologists (ASA) physical status I, II, or III
- BMI between 18 - 30 kg/m2
- Patients scheduled for elective breast surgery
- Ability to provide written informed consent
Exclusion criteria
- Known allergy to local anesthetics
- Infection at the injection site
- Severe coagulopathy or use of anticoagulants
- Chronic opioid use or history of neuropathic pain
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Allocation
- Randomized
- Model
- Parallel assignment
- Masking
- Triple blind
- Primary purpose
- Treatment
Study locations
Turkey (Türkiye) · 1 center
- Ankara Etlik City Hospital — Ankara
Identifiers
NCT: NCT07739277 · AEŞH-EK-2026-152