Blood flow index as an indicator of successful sciatic nerve block: a prospective observational study using laser speckle contrast imaging

摘要

Background: Laser speckle contrast imaging allows real-time, non-invasive, quantitative measurements of regional blood flow. The objectives of this prospective observational study were to use laser speckle contrast imaging to evaluate blood flow changes after sciatic nerve block, and to determine whether this novel optical technique can evaluate block success.