Articles: analgesics.
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To define recent trends in opioid prescribing after surgery and new persistent opioid use in the United States. ⋯ Both opioid prescription size after surgery and new persistent opioid use decreased over the last decade, suggesting that opioid stewardship practices had favorable effects on the risk of long-term opioid use.
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Opioid analgesics are commonly used to treat acute and chronic pain following traumatic injury. Psychiatric comorbidity has been reported to be associated with increased pain and persistent opioid use. Our aims were to determine the extent of post-injury opioid use and assess whether pre-injury antidepressant, benzodiazepine, and z-hypnotic drug use is associated with increased post-injury opioid use. ⋯ This large registry-based study adds to the body of knowledge on opioid use beyond in-hospital care in patients having sustained traumatic injury, a field which is scarcely investigated and not yet fully understood. It suggests that both previous drug therapy and the nature of opioid treatment initiation may affect outcome. This will help guide clinicians in selecting the appropriate pain management in this patient group.
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Prescription opioids for noncancer pain in the United Kingdom have increased over the past 2 decades, alongside associated harms. Policies addressing opioid prescribing must be tailored to individual patient needs with specific disease systems. The aim of this study was to evaluate clinical conditions associated with new opioid initiation in noncancer pain using nationally representative UK data. ⋯ This is the first study in the United Kingdom evaluating large-scale national data to assess indications associated with opioid initiation. Nearly 3 quarters of new opioid prescriptions for noncancer pain were in patients with musculoskeletal conditions, often for conditions with limited evidence for opioid efficacy. These findings could inform targeted interventions and future policies to support nonpharmacological interventions in the most common conditions where opioid harms outweigh benefits.
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The development of nonopioid analgesics for the treatment of abdominal pain is a pressing clinical problem. To address this, we examined the expression of G i/o -coupled receptors, which typically inhibit nociceptor activation, in colonic sensory neurons. This led to the identification of the orphan receptor GPR35 as a visceral analgesic drug target because of its marked coexpression with transient receptor potential ankyrin 1 (TRPA1), a mediator of noxious mechanotransduction in the bowel. ⋯ Consistent with this mechanism of action, we confirmed that TRPA1-mediated colonic contractions evoked by SP release were abolished by CS pretreatment in a GPR35-dependent manner. Our data demonstrate that GPR35 agonists prevent the activation and sensitisation of colonic nociceptors through the inhibition of TRPA1-mediated SP release. These findings highlight the potential of GPR35 agonists to deliver nonopioid analgesia for the treatment of abdominal pain.
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Meta Analysis
Cannabinoids for Acute Postoperative Pain Management: A Systematic Review and Meta-Analysis of Clinical Trials.
Poor acute postoperative pain control, coupled with the use of intravenous medications with a limited and unsafety efficacy spectrum, has led to new therapeutic alternative explorations to reduce adverse events while increasing its analgesic efficacy. There cannabinoids have been proposed as a useful control agent in post-surgical pain. Nevertheless, to date, there is no solid evidence to evaluate them. The current article sought to determine cannabinoids' effectiveness and safety in the aforementioned context. ⋯ The management of severe pain after surgery, and the use of intravenous drugs with limited and potentially unsafe effectiveness, has led to the exploration of new treatment options to minimize side effects while improving pain relief. Cannabinoids have been suggested as a potential solution for managing post-surgical pain, but there is currently insufficient evidence to assess their effectiveness. The purpose of this article was to evaluate the effectiveness and safety of cannabinoids in this context.