Analysis of Photoplethysmographic Signal in Lumbar Sympathetic Block (park001)

Seoul National University

Status and phase: Unknown; Phase 3

Conditions: Complex Regional Pain Syndrome

Treatments: Procedure: lumbar sympathetic block

Study type: Interventional

Funder types: Other

Identifiers

NCT01134289

H-0906-010-282 (Other Identifier)

Seoul National Univ Hospital

Details and patient eligibility

About

This study aims to compare the alternative current and the direct current signal changes of photoplethysmography between both feet during one side lumbar sympathetic block.

The hypothesis is that signal changes occur earlier than other indices to decide whether it is successful following lumbar sympathetic block on only one-side.

Enrollment: 25 estimated patients

Sex: All

Ages: 19 to 70 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Physically examined for complex regional pain syndrome on lower extremity,
• Scheduled for diagnostic lumbar sympathetic blockade.

Exclusion criteria

• Graded as ASA 3 or higher,
• Below 18 or above 70 years of age, or
• Had any other contraindication for regional anesthesia.

Trial design

Primary purpose: Diagnostic

Allocation: Non-Randomized

Interventional model: Single Group Assignment

Masking: Quadruple Blind

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25 participants in 2 patient groups

lumbar sympathetic block

Active Comparator group

Description:

Unilateral lumbar sympathetic blockade using chirocaine

Treatment:

Procedure: lumbar sympathetic block

contralateral side

No Intervention group