Articles: nerve-block.
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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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Minerva anestesiologica · Dec 2021
Ultrasound-guided parasternal blocks: techniques, clinical indications and future prospects: a narrative review.
Fascial plane blocks represent anesthetic procedures performed to manage perioperative and chronic pain. Recently, many fascial blocks techniques have been described increasing their field of applications. They offer anesthetic and analgesic efficacy, easy of execution and low risk of complications. ⋯ So, essentially these blocks may be described as superficial or deep parasternal-intercostal plane blocks, based on where the target nerves are hunted. Even if they all provide analgesia to the antero-medial chest wall, the anatomical injection site represents the main peculiarity that differentiates these techniques. To date, a common nomenclature for antero-medial chest wall blocks or parasternal-intercostal plane blocks is not yet well defined and a standardized nomenclature is needed to ensure an adequate communication among anesthesiologists.
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Due to changing demographics geriatric patients with multiple comorbidities and proximal femoral fractures are an increasing patient population. In these patient groups, peripheral regional anesthesia could become increasingly more important besides established procedures, such as neuraxial or general anesthesia. The aim of this single center feasibility study was to evaluate a combined blockade technique of the lumbosacral plexus for three predefined subgroups depending on the type of hip fracture. ⋯ The combined anesthetic technique presented in this study enables surgical treatment of proximal femoral fractures. The associated effort and requirement for expert knowledge in regional anesthesia indicates that this method should be considered especially in cases with high anesthetic risk, suitable sonoanatomy, and non-compromised coagulation.
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Reg Anesth Pain Med · Dec 2021
Regional anesthesia and acute compartment syndrome: principles for practice.
Acute compartment syndrome (ACS) is a potentially reversible orthopedic surgical emergency leading to tissue ischemia and ultimately cell death. Diagnosis of ACS can be challenging, as neither clinical symptoms nor signs are sufficiently sensitive. ⋯ Regional anesthesia (RA) techniques are traditionally discouraged in clinical settings where the development of ACS is a concern as sensory and motor nerve blockade may mask symptoms and signs of ACS. This Education article addresses the most common trauma and elective orthopedic surgical procedures in adults with a view towards assessing their respective risk of ACS and offering suggestions regarding the suitability of RA for each type of surgery.
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Reg Anesth Pain Med · Dec 2021
Posterior hip pericapsular neurolysis (PHPN) for inoperable hip fracture: an adjunct to anterior hip pericapsular neurolysis.
The development of anterior hip neurolysis has made an appreciable impact on the management of patients with inoperable hip fracture. Nonetheless, suboptimal analgesic benefit was still observed in some patients. We therefore developed a novel posterior hip pericapsular neurolysis (PHPN) to complement anterior hip neurolysis in inoperable hip fracture. ⋯ While most patients responded satisfactorily to anterior hip neurolysis, we concluded PHPN could be an effective adjunct to manage suboptimal pain control after anterior hip neurolysis in inoperable hip fracture.