期刊
ANAESTHESIA
卷 76, 期 -, 页码 65-73出版社
WILEY
DOI: 10.1111/anae.15257
关键词
monitor; nerve stimulation; safety; ultrasound
The widespread use of ultrasound in peripheral nerve blockade has called into question the value of electrical nerve stimulation, with studies showing that ultrasound guidance alone leads to significantly improved block success rates and decreased need for rescue analgesia. The combination of nerve stimulation and ultrasound does not seem to improve block success rates, except for challenging nerve views such as the obturator nerve.
With the widespread use of ultrasound for localising nerves during peripheral nerve blockade, the value of electrical nerve stimulation of evoked motor responses has been questioned. Studies continue to show that, compared with nerve stimulation, ultrasound guidance alone leads to: significantly improved block success; decreased need for rescue analgesia; decreased procedural pain; and lower rates of vascular puncture. Nerve stimulation combined with ultrasound does also not appear to improve block success rates, apart from those blocks where the nerves are challenging to view, such as the obturator nerve. The role of nerve stimulation has changed in the last 15 years from a technique to locate nerves to that of an adjunct to ultrasound. Nerve stimulation can serve as a monitor against needle-nerve contact and may be useful in avoiding nerves that are in the needle trajectory during specific ultrasound guided techniques. Nerve stimulation is also a useful adjunct in teaching novices ultrasound-guided regional anaesthesia, especially when the position and or appearance of nerves may be variable. In this review, the changing role of nerve stimulation in contemporary regional anaesthetic practice is presented and discussed.
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