Comparison of Ultrasound Guided Supraclavicular Brachial Plexus Block with and without Peripheral Nerve Stimulation (PNS) Guidance: A randomised controlled trial
This randomized controlled trial demonstrates that while adding peripheral nerve stimulation to ultrasound guidance for supraclavicular brachial plexus blocks does not improve success rates or onset time, it significantly increases procedural duration due to frequent needle re-adjustments, suggesting that ultrasound guidance alone is sufficient for efficient and effective block performance.