Regional anesthesia and pain medicine
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Reg Anesth Pain Med · Mar 2021
Validation of a new protocol for ultrasound-guided genicular nerve radiofrequency ablation with accurate anatomical targets: cadaveric study.
Ultrasound (US)-guided radiofrequency ablation (RFA) of genicular nerves (GNs) is increasingly performed to manage chronic knee pain. The anatomical foundations supporting the choice of original targets for US-guided GN-RFA have been thoroughly improved by recent anatomical studies. Therefore, this study aimed to provide a new protocol with revised anatomical targets for US-guided GN-RFA and to assess their accuracy in a cadaveric model. ⋯ US-guided GN-RFA with revised anatomical targets resulted in accurate capture of the five targeted nerves. This protocol provides precise sensory denervation of a larger panel of nerves, targeting those whose constancy regarding anatomical location has been clearly demonstrated. It is expected to improve the clinical outcomes.
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Reg Anesth Pain Med · Mar 2021
Prevalence of autonomic nervous system dysfunction in complex regional pain syndrome.
We aimed to investigate the prevalence of dysautonomia in complex regional pain syndrome (CRPS) via the combined autonomic nervous system (ANS) function tests, including the deep breathing test (DBT), orthostatic test (OST) and sympathetic skin response (SSR). ⋯ Dysautonomia, as evaluated using the combined ANS tests, were observed in a small portion of patients with CRPS. The diagnostic performances of these tests for CRPS were inadequate for clinical purposes.