Articles: nerve-block.
-
Reg Anesth Pain Med · Sep 2024
Identification of spread after deliberated intraneural injection in five mammalian species: not all animal models and needle types are valid for studying the effect of intraneural injections in humans.
This research endeavors to investigate the phenomenon of intraneural spread across distinct locations: subcircumneurium, extrafascicular intraneural, intrafascicular intraneural, and intraperineurium after deliberate intraneural injections across five mammalian species. The study also aims to propose determinants influencing this spread. Furthermore, the investigation strives to ascertain the optimal animal species and needle configuration for extrapolating intraneural injection outcomes to human contexts. ⋯ Despite the formidable challenges associated with the practical realization of intrafascicular injection, the utilization of animal models possessing monofascicular or oligofascicular nerves, such as rats, rabbits, and dogs, in conjunction with needles featuring aperture dimensions surpassing those of the fascicles, likely contributes to the compromised reliability of investigations into intraneural injection outcomes.
-
Case Reports
Ultrasound-guided erector spinae nerve block for relief of endometriosis pain in the emergency department.
Endometriosis is a debilitating chronic condition often accompanied by severe pelvic pain and infertility issues. When outpatient medical management is not adequate, controlling pain can be challenging for providers in the acute setting. We report the case of a 23-year-old female with a past medical history of endometriosis who presented to a freestanding emergency department with a chief complaint of 10/10 pelvic pain on a numeric rating scale. ⋯ Utilizing nerve blocks for endometriosis and other chronic pelvic pain in the acute care setting can serve as an effective alternative to opioids. In patients with multiple medication intolerances and for providers navigating pain control in the setting of a nationwide opioid crisis, ESPB blocks can help alleviate acute pain or exacerbations of chronic pain. This case demonstrates the first known use of an ESPB to relieve endometriosis pain in the emergency department.
-
Peripheral nerve blocks provide a safe and reliable alternative in the anesthetic management of femur fractures in elderly subpopulations associated with significant comorbidities. Single-Insertion Multiple Nerve Block Anesthesia (SIMBA) is a technique where a single needle insertion is used to block all four nerves that supply the femur shaft: the femoral nerve, obturator nerve, lateral femoral cutaneous nerve, and sciatic nerve. The authors performed this technique in 11 cardiac compromised geriatric patients with midshaft/distal femur fractures, and the surgery was conducted successfully without any significant hemodynamic change and good postoperative analgesia.
-
Arch Orthop Trauma Surg · Sep 2024
Review Meta AnalysisDifferent peripheral nerve blocks for patients undergoing total knee arthroplasty: a network meta-analysis of randomized controlled trials.
To comprehensively compare the effect of different peripheral nerve blocks for patients undergoing total knee arthroplasty (TKA). ⋯ cACB combined with IPACK/GNB may be the most favorable block after TKA, continuous blocks may be better than single-shot blocks, and combined blocks may be better than separate blocks.