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ULTRASOUND VISIBILITY OF SPINAL STRUCTURES AND LOCAL ANESTHETIC SPREAD IN CHILDREN UNDERGOING CAUDAL BLOCK

Authors
 Seokyung Shin  ;  Ji Young Kim  ;  Won Oak Kim  ;  Seung Hyun Kim  ;  Hae Keum Kil 
Citation
 Ultrasound in Medicine and Biology, Vol.40(11) : 2630-2636, 2014 
Journal Title
 Ultrasound in Medicine and Biology 
ISSN
 0301-5629 
Issue Date
2014
MeSH
Anesthesia, Caudal/methods* ; Anesthetics, Local/pharmacokinetics* ; Child, Preschool ; Dose-Response Relationship, Drug ; Dura Mater/diagnostic imaging ; Epidural Space/diagnostic imaging ; Female ; Humans ; Infant ; Male ; Prospective Studies ; Spine/diagnostic imaging* ; Ultrasonography
Keywords
Caudal block ; Children ; Spinal structures ; Ultrasound
Abstract
This study assessed ultrasound visibility of spinal structures in children and observed the extent of local anesthetic spread within the epidural space during caudal block. Spinal structures were evaluated with ultrasound from the sacral area to the thoracic area in 80 children, and drug spread levels were observed after caudal injection of 0.5, 1.0, 1.25 and 1.5 mL/kg local anesthetic. The conus medullaris, dural sac and dura mater were easily identified with ultrasound in most children. However, ligamentum flavum visibility declined with increasing vertebral level and markedly decreased at the thoracic level in children older than 7 mo or heavier than 8.5 kg. Drug spread was higher with increasing volume (p < 0.001) and in children ≤12 mo more than children >12 mo (p < 0.001); drug spread was significantly correlated with age (R2 = 0.534). Spread levels assessed with ultrasound were roughly two to three segments lower than those in previous radiologic studies.
Full Text
http://www.sciencedirect.com/science/article/pii/S030156291400430X
DOI
10.1016/j.ultrasmedbio.2014.06.020
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Anesthesiology and Pain Medicine (마취통증의학교실) > 1. Journal Papers
Yonsei Authors
Kil, Hae Keum(길혜금)
Kim, Won Oak(김원옥)
Kim, Ji Young(김지영) ORCID logo https://orcid.org/0000-0001-5822-0338
Shin, Seokyung(신서경) ORCID logo https://orcid.org/0000-0002-2641-0070
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/99913
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