Acute Pain, Breast Surgery, Fascial Plane Block, Mastectomy, Pain, Postoperative
Conditions
Keywords
Serratus Anterior Plane Block, Regional Anesthesia, Postoperative Analgesia, Breast Surgery
Brief summary
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
PROCEDURETransverse SAP Block
Transverse serratus anterior plane block will be performed on the patients using 20 mL of 0.375% bupivacaine under ultrasound guidance.
PROCEDURELongitudinal SAP Block
Longitudinal serratus anterior plane block will be performed on the patients using 20 mL of 0.375% bupivacaine under ultrasound guidance.
Sponsors
Ankara Etlik City Hospital
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No
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
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Postoperative Pain Intensity | 4 hour after surgery | 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. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Postoperative Pain Intensity | Up to 24 hours | 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. |
| Total Postoperative Opioid Consumption | Up to 24 hours | The total amount of opioid consumed by the patient will be recorded. |
| Area Under Curve for Pain | Up to 24 hours | Cumulative 24-hour pain burden calculated by the trapezoidal rule |
| Assessment of Sensory Blockade Extent | Evaluated at 20 minutes following block administration. | Sensory extent will be assessed using pinprick testing with a 20-gauge hypodermic needle. |
Countries
Turkey (Türkiye)
Contacts
CONTACTİbrahim MD Topcu
CONTACTMusa Ass. Prof Zengin
Outcome results
None listed