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Single-level and Two-level Serratus Posterior Superior Intercostal Plan Block (SPSIPB)

Comparison of Single-level and Two-level Serratus Posterior Superior Intercostal Plan Block (SPSIPB) Applications in the Treatment of Acute Pain After Mastectomy

Status
Not yet recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06751407
Enrollment
50
Registered
2024-12-27
Start date
2025-07-15
Completion date
2025-09-10
Last updated
2025-07-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Demographic Data, Opioid Consumption

Keywords

serratus posterior superior intercostal plane block, pain, breast cancer, mastectomy

Brief summary

Breast cancer is the most common malignancy in women; one of the mainstays of breast cancer treatment is surgery, and modified radical mastectomy is one of the standard treatments. Postoperative pain can seriously reduce the quality of life in patients, and acute pain can even trigger chronic pain syndrome. Thoracic paravertebral, thoracic epidural, intercostal nerve, and interscalene brachial plexus blocks have been used for anesthesia and abrigation during modified radical mastectomy, but their applications are limited due to the complex nature of the procedures and serious complications. In recent years, regional nerve blocks, including intercostal nerve block, erector spinae plane block (ESPB), and paravertebral block, PECS I-II block, serratus anterior plane block (SAPB), and Serratus Posterior Superior Intercostal Plane Block (SPSIPB), have been applied for the treatment of postmastectomy pain in breast cancer patients. SPSIPB has been frequently used for the treatment of acute pain in the postoperative period following surgeries in the thoracic region. SPSIPB is placed on the spine of the scapula in the sagittal plane to identify the second and third ribs under USG guidance. After visualizing the trapezius and serratus posterior superior (SPS) by moving medially to the upper medial border of the scapula, a block is applied to the depths of the SPS from above the 3rd rib. The applied local anesthetic solution spreads under the SPS muscle. Ipsilateral postoperative analgesia is provided with SPSIPB. SPSIPB can be applied on the 3rd rib in one go, or on the 3rd and 4th ribs in two go. Thus, the local anesthetic solution can be distributed more effectively and more effective postoperative analgesia can be provided.

Interventions

PROCEDURESingle level SPSIPB

The procedure will be performed with the patient in the prone position in the preoperative period. After the scapula is slightly shifted laterally, the US probe is held sagittally at the upper corner of the scapula spine, and the 3rd rib and the serratus posterior superior muscle will be visualized. In plane technique will be used. The block needle will be advanced in the caudo-cranial direction and entered between the serratus posterior superior and the 3rd rib. The block location will be confirmed by injecting 2 ml of saline between the rib and the muscle. After the block location is confirmed, 20 ml of 0.25% bupivacaine will be used.

PROCEDURETwo-level SPSIPB

In plane technique will be used. The block needle will be advanced in the caudo-cranial direction and inserted between the serratus posterior superior and the 2nd rib. The block location will be confirmed by injecting 2 ml of saline between the rib and the muscle. After the block location is confirmed, 10 ml of 0.25% bupivacaine will be used. Then, the US probe will be held sagittally in the medial part of the scapula spine, and the 4th rib and serratus posterior superior muscle will be visualized. In plane technique will be used. The block needle will be advanced in the caudo-cranial direction and inserted between the serratus posterior superior and the 4th rib. The block location will be confirmed by injecting 2 ml of saline between the rib and the muscle. After the block site is confirmed, 10 ml of 0.25% bupivacaine will be used. A total of 20 ml of 0.25% bupivacaine will be used.

Sponsors

Ankara Etlik City Hospital
Lead SponsorOTHER_GOV

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

1-Those between the ages of 18-80 2.Those with ASA score I-II-III 3.Those with body mass index (BMI) between 18-40 4.Patients who underwent Single-Level or Two-Level SPSIPB together with mastectomy in the operating room

Exclusion criteria

1. Those under 18 and over 80 2. Those with ASA score IV and above 3. Those with advanced co-morbidities 4. Those with a history of bleeding diathesis 5. Patients with infection in the area where the block will be performed 6. Those with BMI under 18 and over 40 7. Patients who underwent surgery under emergency conditions

Design outcomes

Primary

MeasureTime frameDescription
Intraoperative opioid consumption.Intraoperative periodIntraoperative opioid consumption will be recorded.

Secondary

MeasureTime frameDescription
Postoperative 24-hour numeric rating scalepostoperative 24 hours periodPostoperative numeric rating scale will be recorded.(0: no pain-10: severe pain)

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026