Current opinion in supportive and palliative care
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Curr Opin Support Palliat Care · Dec 2014
ReviewOpioids prescription for symptoms relief and the impact on respiratory function: updated evidence.
Opioids are used for treating dyspnea and other symptoms in oncological and nononcological patients. The relief of respiratory fatigue and anxiety that these opioids offer is well known. One of the scarcely frequent, but very much feared, side-effects is respiratory depression. The purpose of this review is to determine whether or not the situation of an advanced-stage patient under palliative care and the use of opioids are risk factors for respiratory depression. ⋯ A bibliographic review found three randomized double-blinded placebo-controlled studies and five prospective studies, six of which showed that opioids significantly relieve dyspnea (P<0.001). The use of morphine for symptomatic relief does not significantly change the level of saturation of oxygen in the blood. In addition, the functional studies do not indicate that the use of opioids for dyspnea relief causes high CO2 levels in blood (P=0.05). The opioids used for treating dyspnea do not significantly compromise respiratory function; they are safe and effective.
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Curr Opin Support Palliat Care · Dec 2014
ReviewRole of corticosteroids for fatigue in advanced incurable cancer: is it a 'wonder drug' or 'deal with the devil'.
Although corticosteroids are frequently used to palliate cancer-related symptoms, limited published studies are available. This review summarizes recent literature on the impact of corticosteroids on fatigue, its related symptoms, and the role of 'corticosteroid rotation' in improving the corticosteroid-related side-effects. ⋯ Recent studies confirm the short-term benefit of corticosteroids for the symptomatic treatment of cancer-related fatigue and anorexia cachexia in advanced incurable cancer. Future studies are needed to determine the optimal dose, type, and the role of corticosteroid rotation so as to optimize long-term efficacy and minimize side-effects.
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Studies in different countries and settings of care have reported the quality of care for the dying patients as suboptimal. Care pathways have been developed with the aim of ensuring that dying patients and their family members received by health professionals the most appropriate care. This review presents and discusses the evidence supporting the effectiveness of the end-of-life care pathways. ⋯ The overall amount of evidence supporting the dissemination of end-of-life care pathways is rather poor. One negative randomized trial suggests the pathways have the potential to reduce the gap between hospital and hospices. Further research is needed to understand the potential benefit of end-of-life care pathways.
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Curr Opin Support Palliat Care · Dec 2014
ReviewChronobiology of chronic pain: focus on diurnal rhythmicity of neuropathic pain.
Although circadian rhythmicity has long been recognized in various nociceptive pain conditions such as arthritis, diurnal pain patterns in neuropathic conditions have only recently been described. The purpose of this article is to review emerging evidence and discuss future research to further understand this phenomenon. ⋯ The observation of clinically relevant diurnal pain variability in neuropathic conditions has important implications for future research and treatment of pain. This is an immature research field, and further investigation is needed to better characterize these patterns in more detail, investigate contributory mechanisms, and to develop therapeutic strategies that exploit this phenomenon.