Articles: nerve-block.
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Editorial
Augmented reality in ultrasound-guided regional anaesthesia: useful tool or expensive toy?
Use of augmented reality is increasingly applied in medical education and practice. The main advantage of this technology is the display of relevant information in the visual field of multiple operators. Here we provide a critical analysis of the potential application of augmented reality in regional anaesthesia.
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Reg Anesth Pain Med · Sep 2023
Focused ultrasound-induced inhibition of peripheral nerve fibers in an animal model of acute pain.
Moderate-to-severe acute pain is prevalent in many healthcare settings and associated with adverse outcomes. Peripheral nerve blockade using traditional needle-based and local anesthetic-based techniques improves pain outcomes for some patient populations but has shortcomings limiting use. These limitations include its invasiveness, potential for local anesthetic systemic toxicity, risk of infection with an indwelling catheter, and relatively short duration of blockade compared with the period of pain after major injuries. Focused ultrasound is capable of inhibiting the peripheral nervous system and has potential as a pain management tool. However, investigations of its effect on peripheral nerve nociceptive fibers in animal models of acute pain are lacking. In an in vivo acute pain model, we investigated focused ultrasound's effects on behavior and peripheral nerve structure. ⋯ Focused ultrasound, using a distinct parameter set, reversibly inhibits A-delta peripheral nerve nociceptive, motor, and non-nociceptive sensory fiber-mediated behaviors, has a prolonged effect on C nociceptive fiber-mediated behavior, and alters nerve structure. Focused ultrasound may have potential as a peripheral nerve blockade technique for acute pain management. However, further investigation is required to determine C fiber inhibition duration and the significance of nerve structural changes.
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The sacroiliac joint is one of the proven causes of low back and lower extremity pain, ranging from 10% to 25% in patients with persistent axial low back pain without disc herniation, discogenic pain, or radiculitis. Despite the difficulty of diagnosis, multiple therapeutic modalities including surgical and nonsurgical interventions have been utilized. Among the interventional modalities, intraarticular injections are commonly utilized. ⋯ Chronic low back pain, sacroiliac joint pain, sacroiliac joint dysfunction, sacroiliitis, sacroiliac joint injection, sacroiliac joint nerve blocks, radiofrequency ablation, conventional radiofrequency, pulsed radiofrequency.