Regional anesthesia and pain medicine
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Reg Anesth Pain Med · Jan 2025
MRI-derived abdominal adipose tissue is associated with multisite and widespread chronic pain.
Musculoskeletal pain typically occurs in multiple sites; however, no study has examined whether excessive visceral and subcutaneous adipose tissue are associated with musculoskeletal pain. This study therefore aimed to describe the associations between MRI-derived abdominal adipose tissue and multisite and widespread chronic musculoskeletal pain. ⋯ Abdominal adipose tissue was associated with chronic musculoskeletal pain, suggesting that excessive and ectopic fat depositions may be involved in the pathogenesis of multisite and widespread chronic musculoskeletal pain. The identified stronger effects in women than men may reflect sex differences in fat distribution and hormones.
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Reg Anesth Pain Med · Jan 2025
Real time continuous monitoring of injection pressure at the needle tip is better than ultrasound in early detecting intraneural injection.
During peripheral nerve blocks, inadvertent intraneural injection is not infrequent. Recently, with sonographic nerve swelling, it has been shown that intraneural injection can be detected as early as 0.4 mL. A new method based on injection pressure monitoring at the needle tip, the real pressure in the tissues, is compared with sonographic performance in early detection of intraneural injection. ⋯ Pressure monitoring at the needle tip consistently showed a pressure rise from the onset of injection and proved to be a more sensitive and earlier indicator of intraneural injection than sonographic nerve swelling.
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Reg Anesth Pain Med · Jan 2025
ReviewEfficacy of long-acting local anesthetics versus their mixture with shorter-acting local anesthetics for peripheral nerve blocks guided by ultrasound: a systematic review with meta-analysis of randomized controlled trials.
Local anesthetic (LA) mixtures are used in peripheral nerve blocks (PNB) to improve onset, though study results remain conflicting. ⋯ LA mixtures may not affect sensory and motor block onset in ultrasound-guided PNB but could shorten the duration of sensory blockade.