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The Comparison of Sympathetic Blockade of Stellate Ganglion Block and Thoracic Sympathetic Ganglion Block

Chronic Pain Clinical Trial

Official title:
The Comparison of Sympathetic Blockade of Stellate Ganglion Block and Thoracic Sympathetic Ganglion Block in Patients With Chronic Upper Extremity Neuropathic Pain: a Prospective Randomized and Comparative Clinical Trial

Clinical Trial Summary

For patients scheduled to undergo upper limb sympathetic nerve block due to chronic neuropathic pain in the upper limb lasting more than 3 months, the ultrasound-guided stellate ganglion block group (S group) and the fluoroscopy-guided thoracic sympathetic nerve block group (T) Patients are randomly assigned 1:1 to one of the groups, and the procedure is performed. To evaluate the effectiveness of sympathetic nerve blockade, temperature changes in both palms are measured twice, 20 minutes before and 20 minutes after the procedure, using an infrared thermographer. Other variables related to the procedure are surveyed by outpatient visit or telephone before the procedure, after the procedure, before returning home, and 1 week and 1 month after the procedure.

Clinical Trial Description

Patients aged 19 to 85 with upper limb pain are directly informed about the study, recruited, and enrolled at the Seoul National University Hospital Pain Center. Before and after the procedure, continuous monitoring of electrocardiography, blood pressure, pulse rate, and oxygen saturation is carried out. Before undergoing thoracic sympathetic ganglion block (TSGB) guided by fluoroscopy or ultrasound-guided stellate ganglion block (SGB), the temperature of both palms is measured using an infrared thermometer. Prior to the procedure, Doppler mode ultrasound equipment is used to measure blood flow velocity in the upper limb arteries (brachial artery). In the case of ultrasound-guided stellate ganglion block, the patient is placed in a supine position, and the procedure is performed using ultrasound guidance to inject 5 mL of 1% mepivacaine at the level of C6. For fluoroscopy-guided thoracic sympathetic ganglion block, the patient is positioned prone, and 3 mL of 1% mepivacaine is injected at the level of T3. In both cases, the procedure is performed by a specialist with a rank of professor or higher who specializes in pain management. After the procedure, the palm temperature is measured again 20 minutes later using an infrared thermometer. Blood flow velocity in the upper limb arteries (brachial artery) is also measured 20 minutes post-procedure using Doppler mode ultrasound equipment. Additionally, various procedure-related variables are assessed through outpatient visits or telephone surveys conducted before the procedure, at discharge, one week post-procedure, and four weeks post-procedure. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT06130514
Study type Interventional
Source Seoul National University
Contact Jee Youn Moon, MD, PhD
Phone 821052992036
Email jymoon0901@gmail.com
Status Not yet recruiting
Phase N/A
Start date December 10, 2023
Completion date January 10, 2026
View Details
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