NoL Index Variations Before and After a Stellate Ganglion Block

Completed

• Conditions: Chronic Pain Syndrome

• Registration Number: NCT03317782
• Lead Sponsor: Maisonneuve-Rosemont Hospital

Brief Summary

To evaluate and compare the NoL index variations after a painful physiotherapy exercise in patients with upper limb CRPS, before and after a stellate ganglion block.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2017-10-14
• Study First Submitted QC: 2017-10-18
• Study Start: 2017-10-23
• Study First Posted: 2017-10-23
• Primary Completion: 2018-12-18
• Study Completion: 2019-04-04
• Status Verified: 2019-09
• Last Update Submitted: 2019-09-12
• Last Update Posted: 2019-09-16

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 20

Inclusion Criteria

• Diagnosis of upper limb CRPS according to the Budapest criteria12, for more than 6 months;
• Significant pain relief from stellate ganglion block;
• Undergoing physical therapy;
• 18 years and older.

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Exclusion Criteria

• Patients taking beta blockers

  • Bilateral/generalized CRPS
  • Patients needing sedation for the procedure
  • Inability to understand a Numeric Pain rating Scale due to cognitive dysfunction or linguistic barrier
  • Movement disorder making a person unable to lie still for the duration of the evaluation period.
  • Patient refusal

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Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Change in NoL index from baseline	20 minutes	• Change in the NoL index after a painful physiotherapy exercise in patients with upper limb CRPS 20 minutes after a stellate ganglion block, from baseline (before the stellate ganglion block)

Secondary Outcome Measures

Name	Time	Method
correlation between change in NoL index and change in the Numeric Rating Scale (NRS) pain score (from 0-10) from baseline	20 minutes	Correlate the NoL index variation (delta NoL) with the NRS pain score variation (delta NRS) painful physiotherapy exercise in patients with upper limb CRPS, before and 20 minutes after a stellate ganglion block.
Change in peak NoL index values before and after a stellate ganglion block	20 minutes	Measure the change in peak NoL index (peak NoL index after a painful physiotherapy exercise before the stellate ganglion block minus the peak NoL index value after a painful physiotherapy exercise after the stellate ganglion block
change in Numeric Rating Scale (NRS) pain intensity score (from 0-10) before and after a stellate ganglion block	20 minutes	Measure the change in NRS pain intensity score after a painful physiotherapy exercise, before and 20 minutes after a stellate ganglion block.

Trial Locations

Locations (1)

Maisonneuve Rosemont Hospital; 🇨🇦 Montréal, Quebec, Canada