Complex Regional Pain Syndromes Clinical Trial
Official title:
Impact of the Ultrasound-guided Approach on the Efficiency and Safety of the Stellate Ganglion Block in Chronic Pain
The first purpose of this study is to compare the effectiveness of the stellate ganglion
block realized with two different approaches (blind and ultrasound-guided) in patients with a
diagnosis of complex regional pain syndrome.
The second purpose of this study is to determine the safest approach and to compare the
safety profiles of the two approaches.
To evaluate whether the ultrasound guided approach is more effective than the blind technique
in producing a greater than 1.5 degree Celsius rise in ipsilateral arm temperature after a
stellate ganglion block.
Blocks will both be performed with 10 mL of xylocaine/bupivacaine. Secondary outcomes will be
the impact of the approach (blind vs ultrasound) on pain reduction, horner syndrome, side
effects (hoarseness, dysphagia, pharyngeal discomfort) and complications (blood aspiration,
intravascular injection).
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