Articles: nerve-block.
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We aimed to compare the safety and efficacy of pectoral nerve block (Pecs) I and II with control or other techniques used during breast cancer surgeries such as local anesthesia, paravertebral block, and erector spinae plane block (ESPB). ⋯ Pecs block is a safe and effective analgesic procedure during breast cancer surgeries. It shows lower intra and postoperative opioid consumption than ESPB, and reduces pain compared with control, paravertebral block, and local anesthesia, with better effect when combined with dexmedetomidine.
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J. Neurol. Neurosurg. Psychiatr. · Dec 2021
Randomized Controlled TrialGreater occipital nerve block modulates nociceptive signals within the trigeminocervical complex.
The pharmacological block of the greater occipital nerve has been proven effective in numerous headache and facial pain syndromes. This clinical effect supports the hypothesis of a strong functional interaction between the occipital and trigeminal nerves which has been proposed in neurophysiological in vivo experiments in rodents. Although it is likely that the interaction has to occur in the central nervous system, the exact site and the mechanisms of the interaction remain largely unknown. ⋯ These data suggest that the functional inhibition of the occipital nerve block on trigeminal nociceptive activity is likely to occur at the C2 level where the occipital nerve enters the trigeminocervical complex and converges on the same central nuclei before the signal crosses the midline at that level and is then transmitted to higher processing centres.
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Reg Anesth Pain Med · Dec 2021
Randomized Controlled TrialRandomized trial comparing the spread of erector spinae block with the combination of erector spinae block and retrolaminar block in soft embalmed Thiel cadavers.
Erector spinae plane (ESP) and retrolaminar (RL) blocks show unreliable spread. We hypothesize that the combination of ESP and RL blocks provides more extensive and reliable spread of dye than single ESP blocks. Our primary objective was to compare the spread of dye to the paravertebral spaces after the combination block and ESP block in Thiel embalmed cadavers. Spread, the primary end point, was defined as the number of paravertebral spaces colored with dye per injection. ⋯ In conclusion, the combination of ESP and RL blocks was more extensive and reliable than ESP block alone.