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Korean Journal of Anesthesiology 2000;38(6):1009-1016.
DOI: https://doi.org/10.4097/kjae.2000.38.6.1009   
Hemodynamic Changes and Clinical Symptoms Resulting from Stellate Ganglion Block.
Sung Wook Han, Jae Kyu Cheun, Jung Koo Lee, Won Kyun Park, Joong Gang Kim
1Department of Anesthesiology Keimyung University School of Medicine, Taegu, Korea.
2Department of Physiology Keimyung University School of Medicine, Taegu, Korea.
3Department of Otolaryngology Keimyung University School of Medicine, Taegu, Korea.
Abstract
BACKGROUND
Stellate ganglion block (SGB) is the most common nerve block procedure in pain clinics. To evaluate changes in the hemodynamics and peripheral blood flow on the affected extremity after SGB, SGB was performed unilaterally one at a time on the right and left stellate ganglions by injecting 1% mepivacaine 10 ml without epinephrine in a designated healthy man.
METHODS
SGB was repeated 16 times in one subject (right side SGB: 8, left side SGB: 8) by the same clinician. The mean arterial pressure (MAP), heart rate (HR), cardiac index (CI), systemic vascular resistance index (SVRI) and peripheral blood flow were measured in the supine position before (control), and 3, 6, 9, 12, and 15 minutes after SGB using thoracic electrical bioimpedence (Bioz system A-10043, Cardiodynamics, USA), sphygomanometer, and flow meter.
RESULTS
The values after SGB including MAP, HR, CI, and SVRI increased slightly compared to the control value. However, peripheral blood flow increased significantly (p < 0.05). The SGB did not affect systematic hemodynamics and the comparison between left and right SGB in hemodynamic changes were not clinically significant. Following SGB, ptosis (100%), nasal stiffness (100%), skin temperature elevation (100%), hoarseness (100%), numbness (81%), dizziness (25%), and swallowing difficulty (25%) were observed.
CONCLUSIONS
We concluded that SGB showed to be a hemodynamically safe clinical technique.
Key Words: Heart: hemodynamics; Sympathetic neurons system: stellate ganglion block


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