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- Title
Spread of injectate after ultrasound-guided subcostal transversus abdominis plane block: a cadaveric study.
- Authors
Barrington, M. J.; Ivanusic, J. J.; Rozen, W. M.; Hebbard, P.
- Abstract
Ultrasound-guided transversus abdominis plane (TAP) block can be performed using a subcostal technique. This technique was simulated using dye injection in cadavers in order to determine segmental nerve involvement and spread of injectate using either single or multiple-injection techniques. Dye most commonly spread to affect T9 and T10 nerves with the single injection technique and T9, T10 and T11 with multiple injections. The median (IQR [range]) spread of dye was 60 (36–63 [32–78]) cm2 using the single-injection technique and 90 (85–96 [72–136]) cm2, in the multiple-injection technique, and this difference was statistically significant (p = 0.003). These results indicate that ultrasound-guided subcostal TAP block will involve nerve roots T9, T10 and T11 and that a multiple-injection technique may block more segmental nerves and increase spread of injectate.
- Subjects
MEDICAL imaging systems; ANATOMICAL injections; DYES in medical diagnosis; DRUG administration; NERVES; DEAD
- Publication
Anaesthesia, 2009, Vol 64, Issue 7, p745
- ISSN
0003-2409
- Publication type
Article
- DOI
10.1111/j.1365-2044.2009.05933.x