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The effect of oxygen administration on regional cerebral oxygen saturation after stellate ganglion block on the non-blocked side

Authors
 Eun Mi Kim  ;  Kyung Bong Yoon  ;  Jae Hoon Lee  ;  Duck Mi Yoon  ;  Do Hyeong Kim 
Citation
 PAIN PHYSICIAN, Vol.16(2) : 117-124, 2013 
Journal Title
PAIN PHYSICIAN
ISSN
 1533-3159 
Issue Date
2013
MeSH
Autonomic Nerve Block/adverse effects* ; Blood Pressure/drug effects ; Brain/blood supply* ; Cerebrovascular Circulation/drug effects* ; Electrocardiography ; Female ; Functional Laterality/physiology* ; Heart Rate/drug effects ; Humans ; Male ; Middle Aged ; Oximetry ; Oxygen/pharmacology* ; Spectroscopy, Near-Infrared ; Stellate Ganglion/physiology
Keywords
Brain ischemia ; cerebrovascular circulation ; nerve block ; oximetry ; oxygen ; regional blood flow ; spectroscopy ; near-infrared ; stellate ganglion
Abstract
BACKGROUND:
Stellate ganglion block (SGB) causes sympathetic denervation of the head, neck, and upper extremities. In some studies, it has been reported that cerebral blood flow on the non-blocked side decreases after SGB, so when performing an SGB for pain management of the head, neck, and arm, the increased risk of cerebral ischemia should be considered.
OBJECTIVES:
To examine the influence of administration of oxygen via nasal cannula after SGB on regional cerebral oxygen saturation (rSO2) of the non-blocked and blocked sides using near-infrared spectroscopy (NIRS).
STUDY DESIGN:
Prospective observational study.
SETTING:
Outpatient department for interventional pain management at Yonsei University College of Medicine, Seoul, Korea
METHODS:
Thirty-eight patients with disease entities in the head, neck, and upper extremity and 3 volunteers were studied. SGB was performed with 10 mL of 1% lidocaine using an anterior paratracheal approach at the C6 transverse process level. A successful block was determined based on the appearance of Horner syndrome at 15 minutes after SGB. Oxygen was supplied at a rate of 5 L/min via nasal cannula starting 15 minutes after SGB. rSO2, blood pressure (BP), and heart rate (HR) were obtained at 5-minute intervals for 30 minutes using NIRS, a non-invasive blood pressure manometer, an electrocardiogram, and a pulse oximetry.
RESULTS:
On the non-blocked side, when compared to the baseline values, there were significant decreases in the rSO2 (P < 0.001) and after administration of oxygen, there were significant increases of the rSO2 compared to the rSO2 at 15 minutes (P < 0.001). The lowest rSO2 at 15 minutes on the non-blocked side recovered to greater than the baseline value 5 minutes after starting oxygen administration. On the blocked side, when compared to the baseline values, there were significant increases at all time points (P < 0.001) and after administration of oxygen there were significant increases compared to the rSO2 at 15 minutes (P < 0.001). The rSO2 on the blocked side and the non-blocked side were significantly different at 15 minutes (P = 0.015). After oxygen administration, there were no significant differences of rSO2 between the 2 sides.
LIMITATIONS:
This study is limited by its sample size and observational design. It is difficult to precisely define the importance of the effect of SGB and oxygen administration on rSO2 change as we did not examine how the intensity of the nerve block changed with the passage of time.
CONCLUSION:
SGB leads to decreased cerebral blood flow of the non-blocked hemisphere, and oxygen administration seems to be a simple method to compensate for this response.
CLINICAL TRIAL:
NCT01532713. IRB No.: 4-2011-0358.
Files in This Item:
T201300627.pdf Download
DOI
23511678
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, Eun Mi(김은미)
Yoon, Kyoung Bong(윤경봉) ORCID logo https://orcid.org/0000-0002-4167-1375
Yoon, Duck Mi(윤덕미)
Lee, Jae Hoon(이재훈) ORCID logo https://orcid.org/0000-0001-6679-2782
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/86528
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