Anaes SAQs · Ultrasound-guided peripheral nerve blocks
Sonoanatomy and ultrasound-guided regional anaesthesia
Final-viva question on sonoanatomy: the echoic appearance of fascia/nerve/muscle/vessel/bone, anisotropy, the in-plane vs out-of-plane needle approaches with dynamic needle tip positioning, machine optimisation, and the safety measures (aspiration, Doppler, incremental injection, tip visualisation) that prevent intraneural and intravascular injection.
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Prompt
Describe the principles of ultrasound-guided regional anaesthesia: the appearance of tissues, anisotropy, the in-plane and out-of-plane needle approaches, and the measures that prevent intraneural and intravascular injection.
Question
Describe the principles of ultrasound-guided regional anaesthesia: the appearance of tissues, anisotropy, the in-plane and out-of-plane needle approaches, and the measures that prevent intraneural and intravascular injection[2][3].
References4ShowHide
- [1]Tire Y, et al. Current Status and Future Projections of Artificial Intelligence-Assisted Ultrasonography and Needle Visibility Methods in Regional Anesthesia. Eurasian J Med, 2026.PMID 42364233
- [2]Natto O, et al. Eye-tracking technology applied to regional anaesthesia task performance, safety and expertise. Br J Anaesth, 2026.PMID 42350172
- [3]Mao K, et al. Dynamic needle tip positioning may improve first-attempt success rate in short-axis blocks. J Int Med R, 2026.PMID 42319179
- [4]Turan EI, et al. Authors' reply: ChatGPT and sonoanatomy: augmenting practice, preserving expertise. Minerva Anestesiol, 2026.PMID 42240596