Transversus abdominis plane block: a cadaveric and radiological evaluation.

Hdl Handle:
http://hdl.handle.net/10147/127932
Title:
Transversus abdominis plane block: a cadaveric and radiological evaluation.
Authors:
McDonnell, John G; O'Donnell, Brian D; Farrell, Thomas; Gough, Niall; Tuite, David; Power, Camillus; Laffey, John G
Affiliation:
Department of Anaesthesia and Intensive Care Medicine, Galway University Hospitals, Tallaght, Dublin, Ireland.
Citation:
Transversus abdominis plane block: a cadaveric and radiological evaluation., 32 (5):399-404 Reg Anesth Pain Med
Journal:
Regional anesthesia and pain medicine
Issue Date:
11-Apr-2011
URI:
http://hdl.handle.net/10147/127932
DOI:
10.1016/j.rapm.2007.03.011
PubMed ID:
17961838
Abstract:
The abdominal wall is a significant source of pain after abdominal surgery. Anterior abdominal wall analgesia may assist in improving postoperative analgesia. We have recently described a novel approach to block the abdominal wall neural afferents via the bilateral lumbar triangles of Petit, which we have termed a transversus abdominis plane block. The clinical efficacy of the transversus abdominis plane block has recently been demonstrated in a randomized controlled clinical trial of adults undergoing abdominal surgery.; After institutional review board approval, anatomic studies were conducted to determine the deposition and spread of methylene blue injected into the transversus abdominis plane via the triangles of Petit. Computerized tomographic and magnetic resonance imaging studies were then conducted in volunteers to ascertain the deposition and time course of spread of solution within the transversus abdominis fascial plane in vivo.; Cadaveric studies demonstrated that the injection of methylene blue via the triangle of Petit using the "double pop" technique results in reliable deposition into the transversus abdominis plane. In volunteers, the injection of local anesthetic and contrast produced a reliable sensory block, and demonstrated deposition throughout the transversus abdominis plane. The sensory block produced by lidocaine 0.5% extended from T7 to L1, and receded over 4 to 6 hours, and this finding was supported by magnetic resonance imaging studies that showed a gradual reduction in contrast in the transversus abdominis plane over time.; These findings define the anatomic characteristics of the transversus abdominis plane block, and underline the clinical potential of this novel block.
Item Type:
Article
Language:
en
MeSH:
Abdominal Wall; Adult; Anesthetics, Local; Cadaver; Humans; Lidocaine; Magnetic Resonance Imaging; Male; Methylene Blue; Nerve Block; Tomography, X-Ray Computed
ISSN:
1098-7339

Full metadata record

DC FieldValue Language
dc.contributor.authorMcDonnell, John Gen
dc.contributor.authorO'Donnell, Brian Den
dc.contributor.authorFarrell, Thomasen
dc.contributor.authorGough, Niallen
dc.contributor.authorTuite, Daviden
dc.contributor.authorPower, Camillusen
dc.contributor.authorLaffey, John Gen
dc.date.accessioned2011-04-11T10:14:32Z-
dc.date.available2011-04-11T10:14:32Z-
dc.date.issued2011-04-11T10:14:32Z-
dc.identifier.citationTransversus abdominis plane block: a cadaveric and radiological evaluation., 32 (5):399-404 Reg Anesth Pain Meden
dc.identifier.issn1098-7339-
dc.identifier.pmid17961838-
dc.identifier.doi10.1016/j.rapm.2007.03.011-
dc.identifier.urihttp://hdl.handle.net/10147/127932-
dc.description.abstractThe abdominal wall is a significant source of pain after abdominal surgery. Anterior abdominal wall analgesia may assist in improving postoperative analgesia. We have recently described a novel approach to block the abdominal wall neural afferents via the bilateral lumbar triangles of Petit, which we have termed a transversus abdominis plane block. The clinical efficacy of the transversus abdominis plane block has recently been demonstrated in a randomized controlled clinical trial of adults undergoing abdominal surgery.-
dc.description.abstractAfter institutional review board approval, anatomic studies were conducted to determine the deposition and spread of methylene blue injected into the transversus abdominis plane via the triangles of Petit. Computerized tomographic and magnetic resonance imaging studies were then conducted in volunteers to ascertain the deposition and time course of spread of solution within the transversus abdominis fascial plane in vivo.-
dc.description.abstractCadaveric studies demonstrated that the injection of methylene blue via the triangle of Petit using the "double pop" technique results in reliable deposition into the transversus abdominis plane. In volunteers, the injection of local anesthetic and contrast produced a reliable sensory block, and demonstrated deposition throughout the transversus abdominis plane. The sensory block produced by lidocaine 0.5% extended from T7 to L1, and receded over 4 to 6 hours, and this finding was supported by magnetic resonance imaging studies that showed a gradual reduction in contrast in the transversus abdominis plane over time.-
dc.description.abstractThese findings define the anatomic characteristics of the transversus abdominis plane block, and underline the clinical potential of this novel block.-
dc.language.isoenen
dc.subject.meshAbdominal Wall-
dc.subject.meshAdult-
dc.subject.meshAnesthetics, Local-
dc.subject.meshCadaver-
dc.subject.meshHumans-
dc.subject.meshLidocaine-
dc.subject.meshMagnetic Resonance Imaging-
dc.subject.meshMale-
dc.subject.meshMethylene Blue-
dc.subject.meshNerve Block-
dc.subject.meshTomography, X-Ray Computed-
dc.titleTransversus abdominis plane block: a cadaveric and radiological evaluation.en
dc.typeArticleen
dc.contributor.departmentDepartment of Anaesthesia and Intensive Care Medicine, Galway University Hospitals, Tallaght, Dublin, Ireland.en
dc.identifier.journalRegional anesthesia and pain medicineen
dc.description.provinceConnacht-

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