Department of Anesthesiology, Rush University Medical Center, Chicago, Illinois, USA.
Drugs Aging. 2010 Oct 1;27(10):775-89. doi: 10.2165/11539430-000000000-00000.
The prevalence of chronic pain increases with age, exceeding 50% in individuals aged ≥65 years. Nonsteroidal anti-inflammatory drugs (NSAIDs) are a mainstay of chronic pain management but carry significant dose-related risks of cardiovascular, renal, haematological and other systemic adverse events (AEs). Older patients have an increased risk of these AEs and are more likely to take multiple medications that can potentially interact with NSAIDs. In particular, older patients are more likely to have cardiovascular disease and a natural age-related decline in renal function, increasing the risks of cardiovascular, haematological and renal AEs. Given these risks, recent guidelines for the management of chronic pain in the elderly recommend using NSAIDs rarely and only in carefully selected patients. NSAIDs currently available in the US fall into three categories: nonselective NSAIDs that act via inhibition of cyclo-oxygenase (COX)-1 and COX-2; celecoxib, a selective inhibitor of COX-2; and topical NSAIDs that inhibit both COX-1 and COX-2 but result in much less systemic NSAID exposure than oral formulations. Topical NSAIDs have demonstrated efficacy similar to oral NSAIDs, with an incidence of AEs similar to placebo; however, these agents are an option only in patients with localized pain in superficial joints. Safe pain management in older patients therefore requires cautious choice of selective and nonselective oral NSAIDs, topical NSAIDs or non-NSAID analgesics. This article discusses the risks and benefits of NSAID therapy, reviews its mechanism of action as the source of adverse effects and provides recommendations for maximizing NSAID safety, particularly in older patients. Articles cited in this review were identified via a search of PubMed (January 2005 to November 2009) and a manual search of reference lists from the articles identified in that search. Priority was given to articles discussing NSAID use in older populations, clinical trials of high quality, reports on NSAID safety and AEs, and treatment guidelines.
慢性疼痛的患病率随年龄增长而增加,≥65 岁人群中超过 50%患有慢性疼痛。非甾体抗炎药(NSAIDs)是慢性疼痛管理的主要药物,但具有与剂量相关的显著心血管、肾脏、血液学和其他全身不良事件(AE)风险。老年患者发生这些 AE 的风险增加,并且更有可能服用多种可能与 NSAIDs 相互作用的药物。特别是,老年患者更易患心血管疾病,且肾功能随年龄自然衰退,增加了心血管、血液学和肾脏 AE 的风险。鉴于这些风险,最近针对老年人慢性疼痛管理的指南建议很少使用 NSAIDs,并且仅在精心选择的患者中使用。美国目前可用的 NSAIDs 分为三类:通过抑制环氧化酶(COX)-1 和 COX-2 起作用的非选择性 NSAIDs;塞来昔布,一种选择性 COX-2 抑制剂;以及抑制 COX-1 和 COX-2 的局部用 NSAIDs,但与口服制剂相比,全身 NSAID 暴露量要少得多。局部用 NSAIDs 已被证明与口服 NSAIDs 具有相似的疗效,不良反应发生率与安慰剂相似;然而,这些药物仅适用于浅层关节局部疼痛的患者。因此,老年患者安全的疼痛管理需要谨慎选择选择性和非选择性口服 NSAIDs、局部用 NSAIDs 或非 NSAID 类镇痛药。本文讨论了 NSAID 治疗的风险和益处,回顾了其作用机制作为不良反应的来源,并提供了最大限度提高 NSAID 安全性的建议,特别是在老年患者中。本文综述中引用的文章是通过在 PubMed(2005 年 1 月至 2009 年 11 月)上进行搜索,并手动搜索在该搜索中确定的文章的参考文献而确定的。优先考虑讨论 NSAID 在老年人群中使用、高质量临床试验、关于 NSAID 安全性和 AE 的报告以及治疗指南的文章。