NCT05269251

Effects of Brachial Plexus Block on Tissue Oxygenation

Effects of Brachial Plexus Block Applied With Different Approaches on Tissue Oxygenation

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 99 (actual)
• Sponsor: Gazi University · Academic / Other
• Sex: All
• Age: 18 Years – 65 Years
• Healthy volunteers: Accepted

Summary

The aim of this study is to measure the effects of sympathetic blockade caused by peripheral nerve blocks performed with the axillary, infraclavicular and interscalene approach on tissue oxygenation with Near Infrared Spectroscopy (NIRS), to evaluate and compare the radial artery flow velocity and diameter in the blocked extremity, and to investigate whether there is a relationship with the quality of the sensory and motor block.

Detailed description

It has been reported that vasodilation after peripheral nerve blocks increases tissue oxygenation and increases arterial circulation on the ipsilateral side . Near Infrared Spectroscopy (NIRS), a noninvasive measurement method of tissue oxygen level, is used to measure regional hemoglobin oxygen saturation of arterial, venous and capillary blood . Many studies have compared the effects of upper extremity peripheral nerve blocks on the onset, quality, extent, and postoperative pain of sensory and motor block through axillary, infraclavicular, supraclavicular and interscalene approaches. The aim of this study is to measure the effects of sympathetic blockade caused by peripheral nerve blocks performed with the axillary, infraclavicular and interscalene approach on tissue oxygenation with Near Infrared Spectroscopy (NIRS), to evaluate and compare the radial artery flow velocity and diameter in the blocked extremity, and to investigate whether there is a relationship with the quality of the sensory and motor block.

Conditions

• Tissue Oxygenation

Interventions

Type	Name	Description
DEVICE	Near Infrared Spectroscopy (NIRS)	After the brachial plexus block, the regional oxygen saturation (rSO2) was monitored for 30 minutes with the Regional Oximetry System (O3™, Masimo, Irvine, CA) and the radial artery diameter with ultrasound in the same period.

Timeline

• Start date: 2021-04-12
• Primary completion: 2022-05-31
• Completion: 2022-08-01
• First posted: 2022-03-07
• Last updated: 2024-03-01

Locations

1 site across 1 country: Turkey (Türkiye)