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Ultrasound-guided infraclavicular brachial plexus block
1Department of Anesthesiology, New York University School of Medicine, 550 First Avenue, New York, NY 10016, USA.
British Journal of Anaesthesia
|October 16, 2002
Summary
Ultrasound guidance improves infraclavicular brachial plexus blocks, enabling precise local anesthetic delivery. This technique enhances block success and reduces complications for surgical anesthesia.
Area of Science:
- Anesthesiology
- Regional Anesthesia
- Ultrasound Imaging
Background:
- Peripheral nerve blocks traditionally rely on blind techniques.
- Accurate needle placement is crucial for effective nerve blockade.
Purpose of the Study:
- To evaluate the feasibility of visualizing individual brachial plexus nerves using real-time ultrasound.
- To assess the efficacy of ultrasound-guided needle-to-nerve targeting for brachial plexus blocks.
Main Methods:
- Ultrasound guidance was used for 126 patients undergoing infraclavicular brachial plexus block.
- Standardized technique involved imaging nerves, marking probe position, maintaining needle visualization, and precise local anesthetic deposition.
Main Results:
- 90.4% of patients achieved excellent blocks, avoiding supplemental anesthesia or general anesthesia.
- Mean block administration, onset, and completion times were 10.0, 3.0, and 6.7 minutes, respectively.
- Vascular puncture occurred in one patient; 42.6% had catheters placed with minimal repeat injections needed.
Conclusions:
- Ultrasound enables accurate perineural local anesthetic deposition.
- This imaging modality has the potential to improve success rates and reduce complications in infraclavicular brachial plexus blocks.