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Changes of dorsalis pedis artery flow pattern after caudal block in children: observational study using a duplex sonography.

Authors
 Jeong-Yeon Hong ; Seohui Ahn ; Hae K. Kil 
Citation
 Pediatric Anesthesia, Vol.21(2) : 116~120, 2011 
Journal Title
 Pediatric Anesthesia 
ISSN
 1155-5645 
Issue Date
2011
Abstract
OBJECTIVE: To evaluate the changes of the flow velocity, the volume flow, and the diameter of dorsalis pedis artery using a duplex ultrasonography after caudal block with sevoflurane anesthesia in children. AIM: To know the acute change in peripheral arterial flow patterns of sympathetically blocked lower limbs in anesthetized children. BACKGROUND: Caudal analgesia in combination with general anesthesia may affect the circulatory hemodynamics due to sympatholytic vasodilating effects. METHODS: After approval by the Ethics Committee, we evaluated the changes of peripheral hemodynamics using a duplex ultrasonography before and after a caudal block in sevoflurane-anesthetized children. RESULTS: A caudal block using 0.15% ropivacaine 1.5 ml·kg(-1) significantly altered the arterial flow patterns; increased peak velocity (24%) and volume flow (76%), and the diameter of the dorsalis pedis artery (20%) in children. However, blood pressures and heart rates were not affected significantly by caudal block. CONCLUSIONS: Duplex sonographic measurements indicate that a caudal block changes the flow patterns of the dorsalis pedis artery significantly in the anesthetized children.
URI
http://ir.ymlib.yonsei.ac.kr/handle/22282913/92932
DOI
10.1111/j.1460-9592.2010.03483.x
Appears in Collections:
1. 연구논문 > 1. College of Medicine > Dept. of Anesthesiology and Pain Medicine
Yonsei Authors
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Link
 http://onlinelibrary.wiley.com/doi/10.1111/j.1460-9592.2010.03483.x/abstract
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