Current pain and headache reports
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Curr Pain Headache Rep · Dec 2024
Review Comparative StudyOverview and Comparison of Interscalene Block Techniques for Brachial Plexus Pain Management.
Peripheral nerve blocks are performed using local anesthetics that are commonly performed prior to surgery to either be the sole anesthetic and/or for postoperative pain management. Interscalene blocks are a specific type of nerve block that targets the superior and middle trunks of the brachial plexus inhibiting transmission of pain signals from the upper extremities to the central nervous system making them useful in mitigating pain following surgeries involving the shoulder, upper arm, and elbow. ⋯ Previously, interscalene blocks were performed with a nerve stimulator, which is an instrument designed to generate a twitch in surrounding muscles to verify the anesthetic block was placed in the correct location. However, this approach with a nerve stimulator alone is being done less frequently as physicians now often employ ultrasound either by itself or in conjunction with a nerve stimulator to in the block. Several clinical studies have shown that the use of ultrasound leads to improved safety and effectiveness of the interscalene block as compared to performing the block using a nerve stimulator alone. Clinical studies comparing interscalene blocks done with ultrasound versus ultrasound in conjunction with a nerve stimulator have shown the combination to be slightly safer and more efficacious with reduced side effects, though the difference in these metrics between the two is small. Interscalene blocks are highly effective for postoperative pain related to shoulder and upper extremity surgeries. Ultrasound guided blocks are more effective with reduced adverse effects when compared to nerve stimulation alone. The combination of both ultrasound and nerve stimulation allows for increased efficacy and decreaed side effects in limited clinical investigations. Therefore, more studies are needed to further compare and determine best practice interscalene techniques for shoulder and upper extremity surgeries.
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Curr Pain Headache Rep · Dec 2024
ReviewMechanism of Action of Temporary Peripheral Nerve Stimulation.
Peripheral nerve stimulation (PNS) refers to the technique of utilizing electrical stimulation of peripheral nerves to inhibit the transmission of pain signals. PNS is used to treat chronic intractable pain and post-surgical or post-traumatic pain alongside a variety of other pain conditions, including headaches, facial pain, pelvic and urogenital pain, chest wall pain, residual limb or phantom limb pain, and back pain. ⋯ More recently, PNS has been used temporarily for periods of time less than 60 days to treat acute post-surgical pain. Peripheral nerve stimulation is believed to be effective due to its effects on both central and peripheral pathways. Centrally, it is proposed that the electrical pulses of PNS inhibit alpha-delta and C fibers, which decreases pain signaling in the higher centers of the central nervous system. Peripherally, gate theory is applied as it is theorized that PNS downregulates inflammatory mediators, endorphins, and neurotransmitters associated with pain signaling to decrease the transmission of efferent nociception and reduce pain sensations.
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Curr Pain Headache Rep · Dec 2024
ReviewPotential Predictors of Response to CGRP Monoclonal Antibodies in Chronic Migraine: Real-World Data.
Real-world data (RWD) has identified potential predictors of response to anti-CGRP therapies in patients with chronic migraine (CM). This review aims to synthesize the most remarkable findings published to date regarding this topic. ⋯ Migraine features such as unilateral pain and positive triptan response and chronic features such as daily headache or medication overuse (MO) emerge as predictors of positive outcomes, potentially linked to elevated baseline serum anti-calcitonin gene-related peptide (anti-CGRP) levels. Demographic and baseline characteristics, encompassing obesity, psychiatric comorbidities, and prior refractoriness to prophylactic treatments, are associated with poor responses in both treatment-naïve patients and after-switch scenarios. Nevertheless, the consistency of these predictors across diverse populations requires further investigation. Recent RWD literature highlights emerging predictors of response of different sources among patients with CM receiving anti-CGRP therapies. Comprehending these predictors and identifying novel biomarkers of response hold the potential to refine treatment strategies for CM patients, enhancing their management and therapeutic outcomes.
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Curr Pain Headache Rep · Dec 2024
ReviewOptimizing Pain Management in Cardiac Surgery: A Review of Analgesic Adjuvants.
Pain management following cardiac surgery is a critical component in optimizing both short- and long-term patient outcomes, with poor pain management associated with significant acute and chronic opioid use, opioid dependence and a significant rate of opioid related adverse drug events. The significant burden of both acute and chronic pain following cardiac surgery has given rise to the need for multimodel analgesic strategies, to optimize outcomes and minimize side effects. ⋯ While significant research has focused recently on the additive value of peripheral nerve blocks, less emphasis has been given to the value of non-opioid based analgesics in preference to traditional opioid based anesthetic and analgesic strategies. In this review, we examine the evidence for several common analgesics, highlighting the evidence supporting efficacy following cardiac surgery, as well as the safety concerns with each agent. We demonstrate the value of a multimodal analgesic strategy to reduce pain scores and improve patient-centered outcomes, and highlight the need for further studies of combination analgesic strategies.
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Curr Pain Headache Rep · Dec 2024
ReviewPharmacological Treatment of Fibromyalgia Syndrome: A Practice-Based Review.
Fibromyalgia Syndrome (FMS) is a complex chronic pain condition characterized by widespread musculoskeletal pain and numerous other debilitating symptoms. The purpose of this review is to provide a comprehensive overview, based on everyday clinical practice, of the drugs presently employed in the treatment of FMS. ⋯ The treatment of FMS is based on a multimodal approach, with pharmacologic treatment being an essential pillar. The drugs used include tricyclic antidepressants, serotonin and noradrenaline reuptake inhibitors, other antidepressants, anticonvulsants, myorelaxants, and analgesics. The effectiveness of these medications varies, and the choice of drug often depends on the specific symptoms presented by the patient. Many drugs tend to either address only some domains of the complex FMS symptomatology or have a limited effect on pain. Each treatment option comes with potential side effects and risks that necessitate careful consideration. It may be beneficial to divide patients into clinical subpopulations, such as FMS with comorbid depression, for more effective treatment. Despite the complexities and challenges, the pharmacological treatment remains a crucial part for the management of FMS. This review aims to guide clinicians in prescribing pharmacological treatment to individuals with FMS.