NCT03169517

Blood Flow Index as an Indicator of Successful Peripheral Nerve Block

Blood Flow Index as an Indicator of Successful Peripheral Nerve Block : A Prospective Observational Study Using Laser Speckle Contrast Imaging.

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 110 (actual)
• Sponsor: Huazhong University of Science and Technology · Academic / Other
• Sex: All
• Age: 18 Years – 75 Years
• Healthy volunteers: —

Summary

Laser speckle contrast imaging (LSCI) allows real-time, non-invasive, quantitative measurements of regional blood flow. The aim of this prospective observational study was to evaluate the blood flow changes by LSCI after peripheral nerve block and determine whether this novel optical technique can be used as a reliable indicator of successful blocks.

Detailed description

Methods: One hundred adult patients scheduled for elective upper or lower limb surgery with peripheral nerve block will receive LSCI measurements and pinprick sensory tests before the block and at 5-min intervals till 30 min after the block. The sensitivity, specificity of LSCI as a diagnostic method will be determined by receiver operator characteristic analysis. Clinical Implications: LSCI with quantitative data could be used as an indicator of successful blocks.

Conditions

• Laser

Timeline

• Start date: 2017-05-27
• Primary completion: 2017-09-04
• Completion: 2017-09-04
• First posted: 2017-05-30
• Last updated: 2017-09-06

Locations

1 site across 1 country: China