دورية أكاديمية
Evaluating the Anatomic Spread of Selective Nerve Scalp Blocks Using Methylene Blue: A Cadaveric Analysis.
| العنوان: | Evaluating the Anatomic Spread of Selective Nerve Scalp Blocks Using Methylene Blue: A Cadaveric Analysis. |
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| المؤلفون: | Harbell MW; Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Phoenix., Bolton PB; Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Phoenix., Koyyalamudi V; Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Phoenix., Seamans DP; Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, Phoenix., Langley NR; Department of Laboratory Medicine and Pathology, Mayo Clinic, Scottsdale, AZ. |
| المصدر: | Journal of neurosurgical anesthesiology [J Neurosurg Anesthesiol] 2023 Apr 01; Vol. 35 (2), pp. 248-252. Date of Electronic Publication: 2021 Dec 09. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Lippincott Williams & Wilkins Country of Publication: United States NLM ID: 8910749 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1537-1921 (Electronic) Linking ISSN: 08984921 NLM ISO Abbreviation: J Neurosurg Anesthesiol Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: Hagerstown, MD : Lippincott Williams & Wilkins Original Publication: [New York, N.Y.] : Raven Press, [c1989- |
| مواضيع طبية MeSH: | Methylene Blue* , Nerve Block*/methods, Humans ; Scalp ; Anesthetics, Local ; Cadaver |
| مستخلص: | Background: The modern scalp block consists of local anesthesia injections that target the supraorbital, supratrochlear, zygomaticotemporal, auriculotemporal, and greater and lesser occipital nerves. Limited data exist on the local anesthetic spread that occurs with this technique. This study examines the extent of the spread of a scalp block using methylene blue in a cadaveric model. Methods: A traditional landmark-based scalp block was performed on 6 unembalmed human cadavers using 25-G, 1.5-inch needles to inject 1 to 2 mL of methylene blue 0.1% at each nerve bilaterally; a total volume of 20 mL was injected. The cadavers were then dissected, and the spread of injectate was measured and recorded. Results: All the nerves required for analgesic coverage were appropriately stained by the injections, except for in 2 specimens where the lesser occipital nerve could not be identified. The zygomatic (stained in 2 of 8 specimens) and temporal (stained in 5 of 8 specimens) branches of the facial nerve were stained as a result of the zygomaticotemporal and/or auriculotemporal injections. Tracking from the zygomatic injection site was noted as far inferior as the temporalis muscle attachments on the mandible. Conclusions: This cadaveric study confirms that the landmark-based technique for scalp blocks consistently stained all 6 nerves involved in scalp innervation. There was significant unintentional spread to the branches of the facial nerve when using the landmark technique. Competing Interests: M.W.H. was an educational consultant for the American Society of Regional Anesthesiology and Pain Medicine ending in April 2020. The remaining authors have no conflicts of interest to declare. (Copyright © 2021 Wolters Kluwer Health, Inc. All rights reserved.) |
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| المشرفين على المادة: | T42P99266K (Methylene Blue) 0 (Anesthetics, Local) |
| تواريخ الأحداث: | Date Created: 20211209 Date Completed: 20230308 Latest Revision: 20230827 |
| رمز التحديث: | 20230827 |
| DOI: | 10.1097/ANA.0000000000000826 |
| PMID: | 34882105 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1537-1921 |
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| DOI: | 10.1097/ANA.0000000000000826 |