Articles: nerve-block.
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A pneumatic thigh tourniquet is routinely used during lower-extremity orthopedic surgeries to provide a bloodless field. When using peripheral nerve blocks, tourniquet-related thigh pain and discomfort limit their routine use as an anesthetic method. ⋯ Spinal anesthesia is significantly more effective than the peripheral nerve block method in reducing thigh tourniquet pain. A combined femoral and lateral femoral cutaneous nerve block with popliteal block can improve thigh tourniquet tolerance if supplemented with intravenous analgesics.
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Observational Study
Caudal epidural block versus ultrasound-guided dorsal penile nerve block for pediatric distal hypospadias surgery: A prospective, observational study.
The surgery of hypospadias is very painful in the postoperative period and requires long-term analgesia. A dorsal penile nerve block (DPNB) and caudal epidural block (CEB) are commonly used regional anesthesia techniques for postoperative pain control. ⋯ NCT04215874.
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Randomized Controlled Trial
Effect of mental rotation skills training on ultrasound-guided regional anaesthesia task performance by novice operators: a rater-blinded, randomised, controlled study.
Mental three-dimensional rotation training is associated with improved ultrasound-guided regional anaesthesia technical skills.
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Despite the popularity of the erector spinae plane (ESP) block, both the mechanism of the block and the extent of injectate spread is unclear. This study used magnetic resonance imaging (MRI) to evaluate the spread of local anesthetic injectate following ESP blocks in six patients with pain. ⋯ Our study showed that the ESP block injectate consistently spread to the erector spinae muscles, neural foramina, and intercostal space. It was associated with sensory changes and pain relief in the dorsal and ventral thoracic and abdominal walls. Nevertheless, the extent of spread to the neural foramina and intercostal space, and the sensory block itself, was highly variable.