NCT06246292

Brief Summary

The erector spinae plane (ESP) block is a technique that helps alleviate acute pain. It involves injecting local anesthetic between the erector spinae muscle (ESM) and the vertebra's transverse process (TP). This technique can be guided by ultrasound or anatomical landmarks, and it can be performed while the patient is lying down, sitting or on their side.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
248

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Feb 2024

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 27, 2024

Completed
11 days until next milestone

First Posted

Study publicly available on registry

February 7, 2024

Completed
3 days until next milestone

Study Start

First participant enrolled

February 10, 2024

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2024

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2024

Completed
Last Updated

July 30, 2024

Status Verified

January 1, 2024

Enrollment Period

5 months

First QC Date

January 27, 2024

Last Update Submit

July 29, 2024

Conditions

Keywords

Nerve blockbreast surgeryanalgesia

Outcome Measures

Primary Outcomes (1)

  • To compare the success rate of both landmark-guided ESPB and ultrasound-guided ESPB techniques for analgesia in breast surgery

    The primary outcome was the binary outcome: therapeutic success or failure of ESPB techniques in achieving cutaneous sensory block for breast surgery (from T1 to T6).

    30 minutes after regional block procedure

Secondary Outcomes (5)

  • To compare the dermatomal block spread in both groups

    30 minutes after regional block procedure.

  • To compare the analgesic effectiveness in both groups

    The first 24 hours postoperatively at 1, 3, 6, 12, and 24 hours.

  • To compare the technique-related complications in both groups

    During the regional block procedure.

  • To compare the analgesic effectiveness in both groups

    The first 24 hours postoperatively.

  • To compare the analgesic effectiveness in both groups

    intra- and 24 hours postoperatively

Study Arms (2)

landmark guided ESPB technique

EXPERIMENTAL

The ESPB was performed using the landmarks described by Vadera et al. (5). Before initiating the block procedure, the spinous process of the T4 vertebra and a point situated 3 cm to its side are marked at the appropriate level. The needle was inserted perpendicularly to the skin and advanced in all planes until it contacts the vertebra's transverse process. The depth at which the thoracic vertebra's transverse process lies from the skin can vary, ranging from 2 to 4 cm, contingent upon the individual's physique. The needle tip was positioned between the erector spinae muscle and the transverse process. The volume of local anesthetics was injected in this plane.

Procedure: Anatomical landmark-guided ESPB

ultrasound-guided ESPB technique

ACTIVE COMPARATOR

The block was performed based on the original description by Forero et al. (2). A high-frequency linear transducer (MyLab 70 Xvision, Esaote SpA, Florence, Italy) was positioned in the parasagittal plane 2 cm lateral to the T4 vertebra. Once the transverse process and the overlying erector spinae muscle were visible on the ultrasound, the needle was introduced using the in-plane technique. The needle was inserted in the cranial-to-caudal direction until it reached the tip of the transverse process. Following a negative aspiration and a successful hydro dissection, the local anesthetic solution was injected beneath the erector spinae muscle's fascia.

Procedure: Ultrasound-guided ESPB

Interventions

The ESPB is a truncal block guided by ultrasound, involving the injection of local anesthetic beneath the erector spinae muscle (ESM), positioned between the ESM and the transverse process (TP) of the vertebra.

ultrasound-guided ESPB technique

The ESPB is a truncal block guided by anatomical landmarks, involving the injection of local anesthetic beneath the erector spinae muscle (ESM), positioned between the ESM and the transverse process (TP) of the vertebra.

landmark guided ESPB technique

Eligibility Criteria

Age18 Years+
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients aged 18 years or older.
  • Patients had an American Society of Anesthesiology (ASA) physical score of I-II.
  • Patients undergoing unilateral elective breast surgery.

You may not qualify if:

  • Patients had a contraindication to an ESPB (including coagulopathy, recent anticoagulant medication usage, or infection at the needle puncture site).
  • Patients had a history of opioid addiction, preoperative opioid use, and allergies to study medications.
  • Obesity (body mass index exceeding 35 kg/m²).
  • If the placement of ESPB was not completed due to technique difficulties.
  • Patients who expressed a lack of willingness to participate in the study were not considered eligible for participation.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

faculty of medicine, Alexandria Unverisity

Alexandria, 21521, Egypt

Location

MeSH Terms

Conditions

Agnosia

Condition Hierarchy (Ancestors)

Perceptual DisordersNeurobehavioral ManifestationsNeurologic ManifestationsNervous System DiseasesSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Islam elbardan, Dr.

    University of Alexandria

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 27, 2024

First Posted

February 7, 2024

Study Start

February 10, 2024

Primary Completion

July 1, 2024

Study Completion

July 1, 2024

Last Updated

July 30, 2024

Record last verified: 2024-01

Locations