Transverse vs. Longitudinal Serratus Anterior Plane Block in Breast Surgery
Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18-65
SponsorAnkara Etlik City Hospital
About this trial
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.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
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
Disqualifiers
Known allergy to local anesthetics
Infection at the injection site
Severe coagulopathy or use of anticoagulants
Chronic opioid use or history of neuropathic pain
Trial design
Design model
Parallel
Treatments tested in this trial
Transverse SAP Block
Procedure/SurgeryTransverse serratus anterior plane block will be performed on the patients using 20 mL of 0.375% bupivacaine under ultrasound guidance.
Longitudinal SAP Block
Procedure/SurgeryLongitudinal serratus anterior plane block will be performed on the patients using 20 mL of 0.375% bupivacaine under ultrasound guidance.
Treatment groups
70 Participants
are divided into 2 treatment groupsGroup A: Transverse SAP BlockActive comparator 1 intervention
Group B: Longitudinal SAP BlockActive comparator 1 intervention
Trial outcomes
Primary outcomes
1
Postoperative Pain Intensity
Pain will be assessed using a visual analog scale from 0 mm (no pain) to 100 mm (worst pain) at rest. Pain assessment will be made at 4 hour after surgery.
Time frame
4 hour after surgerySecondary outcomes
1
Postoperative Pain Intensity
Pain will be assessed using a visual analog scale from 0 mm (no pain) to 100 mm (worst pain) at rest and when coughing. Pain assessment will be made at 1, 8, 12, and 24 hours after surgery.
Time frame
Up to 24 hours2
Postoperative Pain Intensity
Pain will be assessed using a visual analog scale from 0 mm (no pain) to 100 mm (worst pain) while coughing. Pain assessment will be made at 1, 4, 8, 12, and 24 hours after surgery.
Time frame
Up to 24 hours3
Total Postoperative Opioid Consumption
The total amount of opioid consumed by the patient will be recorded.
Time frame
Up to 24 hours4
Area Under Curve for Pain
Cumulative 24-hour pain burden calculated by the trapezoidal rule
Time frame
Up to 24 hoursSponsors and contacts
Click on the lead sponsor to view all of their trials.
Source ClinicalTrials.gov