Craniocaudal spread and clinical translation for combined erector spinae plane block and retrolaminar block in soft embalmed cadavers: a randomised controlled equivalence study
Primary resultResult — go to the resultDifference −0.1 90% CI −1.4 to 1.6Authors' conclusion
Combined ESP and RL injections showed equivalent and consistent spread at T3 and T6 injection sites.
Study context
- Population
- Prone soft embalmed Thiel cadaversinjections in 10 cadavers
- Participants
- 20 participants
- Comparison
- Combined erector spinae plane (ESP) + retrolaminar (RL) injection at T3 vs T6
- Primary endpoint
- Craniocaudal dye spread (vertebral levels) after combined ESP and RL injection with a 19 G Tuohy needle
Methodological detailssoft embalmed Thiel cadavers, single anaesthetist, 10 ml dye onto transverse process, then 10 ml onto laminae; 3-8 MHz transducer, paramedian sagittal plane; dissection 24 h later
- Soft embalmed Thiel cadavers
- Single anaesthetist
- 10 ml dye onto transverse process, then 10 ml onto laminae; 3-8 MHz transducer, paramedian sagittal plane; dissection 24 h later
Primary result
As reported in the abstract
Difference
−0.1
90% CI −1.4 to 1.6
P = 0.904
By group
T3 vs T6
difference −0.1 (90% CI −1.4 to 1.6); P = 0.904
Further findings
Direction of dye spread
- Dye extended uniformly, cranially and caudally, from the point of injection
Clinical translation: combined ESP and RL block before mastectomy (6 patients)
- Extensive anterior, lateral, and posterior chest wall paraesthesia over 4 to 6 dermatomes
- Pilot study
Original publication
Craniocaudal spread and clinical translation for combined erector spinae plane block and retrolaminar block in soft embalmed cadavers: a randomised controlled equivalence study. Br J Anaesth. Published 9 February 2024. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →