Fatigue in advanced cancer: a prospective controlled cross-sectional study

Area of Science:

• Palliative Care
• Oncology
• Symptom Research

Background:

• Fatigue is a common symptom in advanced cancer patients and the general population.
• Distinguishing cancer-related fatigue from background fatigue is challenging.
• Palliative care inpatients often experience significant symptom burden.

Purpose of the Study:

• To determine the prevalence of severe subjective fatigue in palliative care inpatients.
• To compare fatigue levels in advanced cancer patients with healthy controls.
• To investigate factors associated with fatigue severity in this population.

Main Methods:

• Cross-sectional study comparing palliative care inpatients with age- and sex-matched healthy volunteers.
• Defined 'severe subjective fatigue' as fatigue exceeding that of 95% of the control group.
• Utilized multivariate analysis to identify correlates of fatigue severity.

Main Results:

• 75% of palliative care inpatients experienced severe subjective fatigue.
• Fatigue severity was not associated with demographic factors, cancer-specific variables, nutritional status, or mood.
• Multivariate analysis revealed significant associations between fatigue severity, pain, and dyspnea in patients.

Conclusions:

• Severe subjective fatigue is highly prevalent in advanced cancer patients receiving palliative care.
• The underlying causes of this severe fatigue remain unclear.
• Further research is needed to explore potential causal links between fatigue, pain, and dyspnea.