From the Anesthesiology Department, Chronic Pain and Fatigue Research Center, University of Michigan Medical School, Ann Arbor, Michigan.
Department of Anesthesiology, Pain Medicine and Critical Care, Hospital for Special Surgery, New York, New York.
Anesth Analg. 2024 Jan 1;138(1):5-15. doi: 10.1213/ANE.0000000000005904. Epub 2023 Dec 15.
Cannabis products (CPs) and cannabis-based medicines (CBMs) are becoming increasingly available and are commonly used for pain management. The growing societal acceptance of cannabis and liberalization of cannabis laws allows patients to access CPs with minimal clinical oversight. While there is mechanistic plausibility that CPs and CBMs may be useful for pain management, the clinical trial literature is limited and does not refute or support the use of CBMs for pain management. Complicating matters, a large and growing body of observational literature shows that many people use CPs for pain management and in place of other medications. However, products and dosing regimens in existing trials are not generalizable to the current cannabis market, making it difficult to compare and reconcile these 2 bodies of literature. Given this complexity, clinicians need clear, pragmatic guidance on how to appropriately educate and work with patients who are using CBMs for pain management. In this review, we narratively synthesize the evidence to enable a clear view of current landscape and provide pragmatic advice for clinicians to use when working with patients. This advice revolves around 3 principles: (1) maintaining the therapeutic alliance; (2) harm reduction and benefit maximization; and (3) pragmatism, principles of patient-centered care, and use of best clinical judgment in the face of uncertainty. Despite the lack of certainty CPs and chronic pain management use, we believe that following these principles can make most of the clinical opportunity presented by discussions around CPs and also enhance the likelihood of clinical benefit from CPs.
大麻制品(CPs)和大麻类药物(CBMs)越来越普及,常用于疼痛管理。社会对大麻的接受度不断提高,大麻法律也日趋宽松,使得患者在几乎没有临床监督的情况下就能获得 CPs。虽然 CPs 和 CBMs 可能对疼痛管理有用具有一定的机制合理性,但临床试验文献有限,既没有反驳也没有支持使用 CBMs 进行疼痛管理。更复杂的是,大量不断增长的观察性文献表明,许多人使用 CPs 来进行疼痛管理,并用其代替其他药物。然而,现有试验中的产品和剂量方案与当前的大麻市场并不具有通用性,这使得很难比较和调和这两种文献。鉴于这种复杂性,临床医生需要明确、务实的指导,以了解如何适当地教育和与使用 CBMs 进行疼痛管理的患者合作。在这篇综述中,我们对证据进行了叙述性综合,以便清楚地了解当前的情况,并为临床医生提供与患者合作时使用的实用建议。这些建议围绕三个原则:(1)保持治疗联盟;(2)减少伤害和最大化收益;(3)实用主义、以患者为中心的护理原则以及在不确定的情况下运用最佳临床判断。尽管 CPs 和慢性疼痛管理的使用存在不确定性,但我们相信,遵循这些原则可以充分利用围绕 CPs 进行讨论带来的临床机会,同时也提高 CPs 带来临床获益的可能性。