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Cattle
Transversus abdominis plane block in two calves undergoing umbilical herniorrhaphy
  1. Aurora Zoff1,
  2. Alex Dugdale2,
  3. A N Coates3 and
  4. Eva Rioja4
  1. 1 Willows Veterinary Centre and Referral Centre, Solihull, UK
  2. 2 Chester Gates Veterinary Specialists, Chester, UK
  3. 3 Division of Livestock Health and Welfare, University of Liverpool, Liverpool, UK
  4. 4 University of Liverpool School of Veterinary Science, Neston, UK
  1. Correspondence to Aurora Zoff; aurora.zoff{at}willows.uk.net

Abstract

A transversus abdominis plane (TAP) block was performed in two calves undergoing umbilical hernia repair. Both calves were in good health and body condition and were anaesthetised using standard anaesthesia protocols. After placement in dorsal recumbency, the abdomen was scanned with an 11-MHz linear array probe from the last rib to the iliac crest to identify the abdominal musculature comprising the external and internal abdominal oblique muscles and the transversus abdominis (TA). The needle (SonoTAP cannula 22G×50 mm; Pajunk) was advanced using an in-plane technique, and a volume of 0.3 ml/kg was injected after a test dose. No obvious reduction of isoflurane requirements was apparent and one of the calves required rescue analgesia. The calves recovered uneventfully from anaesthesia.

This case report discusses the advantages of the TAP block over the paravertebral block, discusses the risks associated with TAP blocks and highlights the importance of training in ultrasound-guided techniques.

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  • Received February 9, 2017.
  • Revision received March 22, 2017.
  • Accepted March 30, 2017.
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Footnotes

  • Contributors AZ: design of the case report, selection of the patients, acquisition of data, preparation of the manuscript, approval of the final version of the manuscript. AD:

    design of the case report, acquisition of data, preparation of the manuscript, revision of the manuscript, approval of the final version of the manuscript.

    ANC: acquisition of the data, preparation of the manuscript, revision and approval of the final version of the manuscript. E

    R: design of the study, preparation and revision of the manuscript, approval of the final version of the manuscript.

  • Provenance and peer review Not commissioned; externally peer reviewed.

  • Data sharing statement No commercial use permitted unless otherwise expressly granted.

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