• Sebastiano Mercadante.
• Anesthesia and Intensive Care and Pain Relief and Palliative Care Unit, La Maddalena Cancer Center, Palermo, Italy.
• Curr Opin Anaesthesiol. 2015 Oct 1; 28 (5): 559-64.

Purpose Of ReviewThe aim of this article was to examine the definition, the characteristics, and the management of breakthrough cancer pain (BTP) in cancer patients by a critical review of recent literature.Recent FindingsBTP should be more correctly defined as an episode of severe intensity in patients receiving an adequate treatment with opioids able to provide at least mild analgesia. BTP is a heterogeneous condition as episodes vary between individuals. BTP can be classified into two big distinct pictures: spontaneous-type and incident-type pain. The principal pharmacological treatment of BTP is represented by the administration of opioids as needed. Recent reviews revealed that transmucosal preparation of fentanyl provided superior and more rapid pain relief as compared with placebo in the first 30 min after dosing. Few comparison studies among fentanyl products have been performed.Finally, although dose titration was recommended for years, a meaningful dosing according to the level of opioid tolerance may enhance the advantages of such products.SummaryBTP represents a serious problem reported by many cancer patients despite receiving regular use of opioids. Subgroups of breakthrough pain have been identified. Different modalities of pharmacological interventions are available. Further studies are warranted to assess the net benefit of these drugs to assist decision-making by patients, clinicians, and payers according to individual clinical conditions.

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