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Effect of cervical sympathetic block on optic nerve sheath diameter measured by ultrasonography

Authors
 Min-Soo Kim  ;  Kyung Bong Yoon  ;  Duck Mi Yoon  ;  Do-Hyeong Kim 
Citation
 Ultrasound in Medicine and Biology, Vol.41(6) : 1599-1604, 2015 
Journal Title
 Ultrasound in Medicine and Biology 
ISSN
 0301-5629 
Issue Date
2015
Abstract
Optic nerve sheath diameter (ONSD) measurement using ocular ultrasonography was introduced as a non-invasive technique to assess intracranial pressure. We investigated changes in ONSD after cervical sympathetic block (CSB). Ultrasound-guided CSB was performed with a lateral approach at the C6 level in 35 patients. ONSD was measured before CSB and after checking for Horner's syndrome 15 minutes after CSB. The mean ONSD was significantly higher after CSB than before (5.15 ± 0.38 mm vs. 4.75 ± 0.32 mm, p < 0.001). A comparison of ONSDs between the blocked and non-blocked sides revealed that these values did not differ significantly between sides at baseline and after CSB. On the basis of these preliminary data, CSB caused an increase in ONSD in patients without intracranial pathology or neurologic disorders. Further larger and controlled studies of the effect of CSB on intracranial pressure in humans are needed to confirm our findings.
Full Text
http://www.sciencedirect.com/science/article/pii/S0301562915000940
DOI
10.1016/j.ultrasmedbio.2015.01.025
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Anesthesiology and Pain Medicine (마취통증의학교실) > 1. Journal Papers
Yonsei Authors
Kim, Do Hyeong(김도형) ORCID logo https://orcid.org/0000-0003-2018-8090
Kim, Min Soo(김민수) ORCID logo https://orcid.org/0000-0001-8760-4568
Yoon, Kyoung Bong(윤경봉) ORCID logo https://orcid.org/0000-0002-4167-1375
Yoon, Duck Mi(윤덕미)
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URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/140164
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