Articles: analgesia.
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Reg Anesth Pain Med · Feb 2024
Randomized Controlled TrialEqual mixture of 2% lidocaine with adrenaline and 0.5% bupivacaine 20 mL provided faster onset of complete conduction blockade during ultrasound-guided supraclavicular brachial plexus block than 20 mL of 0.5% bupivacaine alone: a randomized double-blinded clinical trial.
Recent evidence has questioned the advantage of local anesthetic (LA) combinations. This study tested the hypothesis that mixing rapid-onset (lidocaine) and long-duration (bupivacaine) LA would provide faster onset of complete conduction blockade (CCB) compared with bupivacaine alone and longer duration of analgesia compared with lidocaine alone during low-volume (20 mL) ultrasound-guided (USG) supraclavicular brachial plexus block (SCBPB). ⋯ At 20 mL LA volume, equal mixture of lidocaine and bupivacaine provided significantly faster onset of CCB compared with bupivacaine alone and longer duration of postoperative analgesia compared with lidocaine alone but shorter than bupivacaine alone during low-volume USG-SCBPB.
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Randomized Controlled Trial
The Relationship between Pre-Anesthetic Analgesia and Nociception (ANI) and Propofol Injection Pain among Patients Receiving Remifentanil: A Prospective, Randomized, Controlled Study.
Background and Objectives: The analgesia/nociception index (ANI) potentially monitors nociceptive status during anesthesia, but its link to preoperative pain sensitivity is unclear. We investigated the relationship between pre-anesthetic ANI scores and propofol injection pain (PIP) in patients receiving remifentanil. Materials and Methods: This study included 124 male patients aged 19-60 undergoing general anesthesia (ASA class I or II). ⋯ AUC, cut-off value, specificity, and sensitivity in ANI during propofol injection for PIP were 0.77 (p < 0.01), 65, 81%, and 67%, respectively. Conclusions: ANI scores demonstrated significant differences between groups, suggesting potential predictive value for PIP despite the low pre-induction AUC value. This study highlights the potential of using ANI scores to predict and manage PIP in patients receiving remifentanil.
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Supracondylar fractures of the distal humerus are the most common fracture around the elbow in children. A thorough initial assessment must be conducted to identify any associated neurovascular injury and carefully documented. The assessment should include a vascular examination of the radial pulse, temperature, colour and capillary refill time. ⋯ Casting should be followed by orthogonal radiographs and a repeat neurovascular assessment of the limb. Oral analgesia and safety netting information should be provided on discharge, and the child reviewed in a fracture clinic within 1 week of the injury. The British Orthopaedic Association Standards for Trauma and Orthopaedics for supracondylar fractures of the humerus in children are useful for junior orthopaedic and emergency medicine clinicians to refer to when dealing with these injuries.
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Randomized Controlled Trial
Placebo analgesia and nocebo hyperalgesia in patients with Alzheimer disease and healthy participants.
The role of placebo analgesia and nocebo hyperalgesia in patients with Alzheimer disease (AD) is largely unknown, with only few studies in the area. Therefore, this study aims to investigate to which extent placebo analgesia and nocebo hyperalgesia effects are present in patients experiencing mild-to-moderate AD. Twenty-one patients with AD (test population) and 26 healthy participants (HP; design validation) were exposed to thermal pain stimulation on 3 test days: Lidocaine condition (open/hidden lidocaine administration), capsaicin condition (open/hidden capsaicin administration), and natural history (no treatment), in a randomized, within-subject design. ⋯ With a well-controlled experimental setting, this study suggests that patients with AD may not experience placebo analgesia effects. Nocebo hyperalgesia effects in patients with AD needs further research. These findings may have implications for the conduction of clinical trials and the treatment of patients with AD in clinical practice.
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Randomized Controlled Trial
Programmed Intermittent Bolus for Erector Spinae Plane Block versus Intercostal Nerve Block with Patient-controlled Intravenous Analgesia in Video-assisted Thoracoscopic Surgery: A Randomized Controlled Non-inferiority Trial.
Postoperative analgesia is crucial after video-assisted thoracoscopic surgery (VATS). This study was designed to investigate whether the analgesic effect of programmed intermittent bolus (PIB) erector spinae plane block (ESPB) is noninferior to that of intercostal nerve block with patient-controlled intravenous analgesia (ICNB-PCIA) for VATS. ⋯ ESPB using a PIB injection offers noninferior analgesia to ICNB-PCIA after VATS.