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| Ultrasound
- Guided Nerve Blockade |
Recent
findings: The ability to visualize nerve location, needle advancement,
needle-nerve interaction, and local anesthetic spread makes
ultrasound-guided nerve block an attractive option. Study results
indicate that these advantages can improve the ease of block
performance, block success rates, and complications.
- How
well does the Ultrasound-guided blockade work?
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Two studies reported that nerve block was more successful using
ultrasound guidance than without ultrasound. In a study of 188
patients the success rate was 83% for ultrasound guidance and
63% without it. In a study of 40 patients, nerve block was more
successful and faster in 20 patients who were treated with ultrasound
guidance compared with 20 treated without it. Two other studies
showed that the nerve block was successful in 99% of 1146 patients
and in 94% of 520 patients treated using ultrasound guidance.
A study of 100 patients reported that less anaesthetic was needed
to block the nerve when ultrasound guidance was used.
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