Breathlessness and other respiratory symptoms in palliative care
Breathlessness is prevalent among palliative care patients with intensity likely to increase as death approaches for many people. There are two main patterns of breathlessness—episodic breathlessness and constant breathlessness—and three separate qualities of breathlessness—air hunger, work or effort, and tightness. Chronic breathlessness is defined as disabling breathlessness despite optimal treatment of the underlying pathophysiology. The measurement of breathlessness includes three domains: sensory-perceptual experience, affective distress, and symptom impact. The management of breathlessness includes specific disease management, non-pharmacological interventions, pharmacological therapies, and, in a very small proportion of people, palliative non-invasive ventilation. A full assessment of the widespread effects of chronic breathlessness on the individual including coping style and help-seeking behaviour is important to tailor interventions. Interventions focused on the breathlessness can be based on a ‘Breathing, Thinking, Functioning’ clinical framework. Oral, low-dose morphine in steady state remains the pharmacological treatment with the strongest evidence base.