NCT06241820

Brief Summary

The patient, who is experiencing chronic pain in the lower extremities persisting for more than three months, is scheduled to undergo lumbar sympathetic ganglion block. To evaluate the technical success of the sympathetic blockade, temperature and perfusion index (PI) will be measured at one-minute intervals over a 20-minute period before and after the procedure on the treated side and the opposite side foot. Additionally, other variables related to the procedure will be assessed before the procedure, after the procedure, before discharge, and during follow-up outpatient visits or phone surveys at 1 week and 1 month after the procedure.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
40

participants targeted

Target at P25-P50 for not_applicable chronic-pain

Timeline
Completed

Started Feb 2024

Shorter than P25 for not_applicable chronic-pain

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 28, 2024

Completed
8 days until next milestone

First Posted

Study publicly available on registry

February 5, 2024

Completed
8 days until next milestone

Study Start

First participant enrolled

February 13, 2024

Completed
3 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 30, 2024

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

May 30, 2024

Completed
Last Updated

July 11, 2024

Status Verified

July 1, 2024

Enrollment Period

3 months

First QC Date

January 28, 2024

Last Update Submit

July 9, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Difference of perfusion index (%)

    Difference of perfusion index (%) between ipsilateral foot and contralateral foot

    before and 1 - 20 minutes after FS-guided lumbar sympathetic ganglion block

Secondary Outcomes (6)

  • Difference of temperature change (°C)

    before and 1 - 20 minutes after FS-guided lumbar sympathetic ganglion block

  • Severity of pain

    Time before block and 20 minutes, 1 week, 4 weeks after FS-guided lumbar sympathetic ganglion block ( The higher the score, the more severe the pain)

  • Proportion of patients reaching ≥ 1.5°C rise

    20 minutes after FS-guided lumbar sympathetic ganglion block

  • Proportion of patients reaching ≥ 2.0°C rise

    20 minutes after FS-guided lumbar sympathetic ganglion block

  • Proportion of patients reaching ≥ 100% rise of perfusion index (%)

    1 - 20 minutes after FS-guided lumbar sympathetic ganglion block

  • +1 more secondary outcomes

Study Arms (1)

Lumbar Sympathetic Ganglion Block (LSGB)

OTHER

FS-guided LSGB at L3 level.

Procedure: Lumbar Sympathetic Ganglion Block

Interventions

A needle will be inserted at the L3 on the side experiencing pain, either right or left, under fluoroscopy guidance. Once the needle is positioned in front of the desired vertebral body, its location is confirmed using a contrast medium. If the position is well visualized in lateral and anteroposterior (AP) views, 7 mL of 0.5% ropivacaine will be injected.

Lumbar Sympathetic Ganglion Block (LSGB)

Eligibility Criteria

Age19 Years - 85 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Lower extremity pain
  • Pain for more than 3 months
  • years

You may not qualify if:

  • If the patient refuses to undergo the procedure
  • In the presence of vascular disorders in the lower extremities
  • If the patient has previously undergone lumbar sympathetic ganglion removal or neurolysis
  • When there are abnormalities in blood coagulation tests
  • If there is a systemic infection or infection at the injection site
  • In the presence of anatomical deformities at the injection site
  • If the patient has allergies to the injected medication
  • In other cases where the researcher deems the patient unsuitable for participation

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Seoul National University Hospital

Seoul, South Korea

Location

Related Publications (12)

  • Day M. Sympathetic blocks: the evidence. Pain Pract. 2008 Mar-Apr;8(2):98-109. doi: 10.1111/j.1533-2500.2008.00177.x.

    PMID: 18366465BACKGROUND
  • Joo EY, Kong YG, Lee J, Cho HS, Kim SH, Suh JH. Change in pulse transit time in the lower extremity after lumbar sympathetic ganglion block: an early indicator of successful block. J Int Med Res. 2017 Feb;45(1):203-210. doi: 10.1177/0300060516681398. Epub 2017 Jan 17.

    PMID: 28222636BACKGROUND
  • Stevens RA, Stotz A, Kao TC, Powar M, Burgess S, Kleinman B. The relative increase in skin temperature after stellate ganglion block is predictive of a complete sympathectomy of the hand. Reg Anesth Pain Med. 1998 May-Jun;23(3):266-70. doi: 10.1016/s1098-7339(98)90053-0.

    PMID: 9613538BACKGROUND
  • Kim ED, Yoo WJ, Lee YJ, Park HJ. Perfusion index as a tool to evaluate the efficacy of stellate ganglion block for complex regional pain syndrome. Clin Auton Res. 2019 Apr;29(2):257-259. doi: 10.1007/s10286-018-00585-6. Epub 2019 Jan 1. No abstract available.

    PMID: 30600407BACKGROUND
  • Lee JY, Kim ED, Kim YN, Kim JS, Sim WS, Lee HJ, Park HJ, Park HJ. Correlation of Perfusion Index Change and Analgesic Efficacy in Transforaminal Block for Lumbosacral Radicular Pain. J Clin Med. 2019 Jan 7;8(1):51. doi: 10.3390/jcm8010051.

    PMID: 30621004BACKGROUND
  • Abdelnasser A, Abdelhamid B, Elsonbaty A, Hasanin A, Rady A. Predicting successful supraclavicular brachial plexus block using pulse oximeter perfusion index. Br J Anaesth. 2017 Aug 1;119(2):276-280. doi: 10.1093/bja/aex166.

    PMID: 28854539BACKGROUND
  • Yamazaki H, Nishiyama J, Suzuki T. Use of perfusion index from pulse oximetry to determine efficacy of stellate ganglion block. Local Reg Anesth. 2012;5:9-14. doi: 10.2147/LRA.S30257. Epub 2012 Mar 13.

    PMID: 22915896BACKGROUND
  • Ginosar Y, Weiniger CF, Meroz Y, Kurz V, Bdolah-Abram T, Babchenko A, Nitzan M, Davidson EM. Pulse oximeter perfusion index as an early indicator of sympathectomy after epidural anesthesia. Acta Anaesthesiol Scand. 2009 Sep;53(8):1018-26. doi: 10.1111/j.1399-6576.2009.01968.x. Epub 2009 Apr 24.

    PMID: 19397502BACKGROUND
  • Huang B, Sun K, Zhu Z, Zhou C, Wu Y, Zhang F, Yan M. Oximetry-derived perfusion index as an early indicator of CT-guided thoracic sympathetic blockade in palmar hyperhidrosis. Clin Radiol. 2013 Dec;68(12):1227-32. doi: 10.1016/j.crad.2013.07.003. Epub 2013 Aug 19.

    PMID: 23969155BACKGROUND
  • Cheng J, Salmasi V, You J, Grille M, Yang D, Mascha EJ, Cheng OT, Zhao F, Rosenquist RW. Outcomes of Sympathetic Blocks in the Management of Complex Regional Pain Syndrome: A Retrospective Cohort Study. Anesthesiology. 2019 Oct;131(4):883-893. doi: 10.1097/ALN.0000000000002899.

    PMID: 31365367BACKGROUND
  • Samen CDK, Sutton OM, Rice AE, Zaidi MA, Siddarthan IJ, Crimmel SD, Cohen SP. Correlation Between Temperature Rise After Sympathetic Block and Pain Relief in Patients with Complex Regional Pain Syndrome. Pain Med. 2022 Sep 30;23(10):1679-1689. doi: 10.1093/pm/pnac035.

    PMID: 35234922BACKGROUND
  • Kim J, Yun M, Han AH, Pauzi MF, Jeong JH, Yoo Y, Moon JY. Thoracic sympathetic ganglion blocks: real-world outcomes in 207 chronic pain patients. Reg Anesth Pain Med. 2024 Jul 8;49(7):528-535. doi: 10.1136/rapm-2023-104624.

    PMID: 37726196BACKGROUND

MeSH Terms

Conditions

Chronic PainComplex Regional Pain SyndromesPeripheral Nervous System DiseasesNeuralgia, Postherpetic

Condition Hierarchy (Ancestors)

PainNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and SymptomsAutonomic Nervous System DiseasesNervous System DiseasesNeuromuscular DiseasesNeuralgia

Study Officials

  • Jeongsoo Kim, MD

    Seoul National University Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

January 28, 2024

First Posted

February 5, 2024

Study Start

February 13, 2024

Primary Completion

April 30, 2024

Study Completion

May 30, 2024

Last Updated

July 11, 2024

Record last verified: 2024-07

Data Sharing

IPD Sharing
Will not share

Locations