Articles: nerve-block.
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Randomized Controlled Trial
Ultrasound-guided erector spinae block versus mid-transverse process to pleura block for postoperative analgesia in lumbar spinal surgery.
In recent years, promising results were achieved with the use of ultrasound (US)-guided interfascial plane blocks for effective postoperative analgesia in several surgeries. Erector spina plane (ESP) block and mid-transverse to pleura plane (MTP) block are the latest techniques in this area. The aim of this prospective and randomized study was to compare the postoperative analgesic efficacy of bilateral ESP and MTP blocks in patients undergoing lumbar spinal surgery under general anesthesia (GA). ⋯ Both ESP and MTP blocks provided effective pain relief after lumbar spinal surgery but the ESP block was superior to MTP block regarding postoperative analgesia in the first 24 h.
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Reg Anesth Pain Med · Oct 2020
Complication rate of ultrasound-guided paravertebral block for breast surgery.
Thoracic paravertebral blockade is often used as an anesthetic and/or analgesic technique for breast surgery. With ultrasound guidance, the rate of complications is speculated to be lower than when using landmark-based techniques. This investigation aimed to quantify the incidence of pleural puncture and pneumothorax following non-continuous ultrasound-guided thoracic paravertebral blockade for breast surgery. ⋯ Pneumothorax following non-continuous ultrasound-guided thoracic paravertebral block using a parasagittal approach is an uncommon occurrence, with a similar rate to pneumothorax following breast surgery alone.
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The pericapsular nerve group (PENG) block is a novel regional technique indicated for analgesia for hip joint pain. We administered PENG blocks and performed catheter insertion for continuous infusions in patients with femur fractures on hospital admission. In this case series, we describe our initial experience of pain management in 10 patients with continuous infusion and its associated adverse events. ⋯ Overall, eight patients had femoral neck fractures, and two patients had intertrochanteric fractures. All 10 patients reported good pain relief. The median (IQR) Numerical Rating Scale (NRS) score decreased from 7 (6-7) before the block to 2 (2-2.75) 20 min after PENG catheter placement. The median (IQR) NRS score after 12, 24 and 48 hours were 2 (2-3), 2 (2-3), and 2 (0.25-2), respectively. Patients underwent surgery 24-48 hours following catheter placement. Catheters were removed by an Acute Pain Service nurse 72 hours postinsertion. We want to highlight the potential for intravascular catheter placement in this anatomical region. Further studies are required to confirm if this is a technical error or an associated complication of continuous PENG blocks.
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Anaesth Crit Care Pain Med · Oct 2020
Real-time continuous monitoring of injection pressure during peripheral nerve blocks in fresh cadavers.
The incidence of unintentional intraneural injection while performing peripheral nerve block has been estimated to be 15% under real-time ultrasound guidance. Injection pressure increase may detect an intraneural injection. Real-time injection pressure changes throughout an entire nerve block procedure in relationship with needle tip location have never been reported. ⋯ Based on significant differences in injection pressure values and curve shapes, the system was able to discriminate between four needle tip locations. This may help with needle tracking while performing a peripheral nerve block.