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Measurement of dyspnoea
1Salvatore Maugeri Foundation IRCCS, Lung Function Unit, Scientific Institute of Gussago, I-25064 Gussago, BS, Italy.
Summary
Measuring dyspnoea, or breathlessness, is vital for patient care. New indices improve breathlessness assessment by considering functional impact and effort, not just task difficulty.
Area of Science:
- Respiratory Medicine
- Clinical Assessment
Background:
- Dyspnoea, an uncomfortable sensation of breathing, significantly impacts daily life.
- Accurate measurement of dyspnoea is crucial for effective patient evaluation and management.
- Existing clinical methods often rely on the magnitude of the exertional task causing breathlessness.
Purpose of the Study:
- To review methods for measuring dyspnoea.
- To highlight the development of improved indices for dyspnoea assessment.
- To discuss the components and properties of various dyspnoea measurement scales.
Main Methods:
- Review of psychophysical methods and clinical scales for assessing breathlessness.
- Discussion of the Visual Analogue Scale (VAS) for dyspnoea.
- Introduction of the Baseline Dyspnoea Index (BDI) and Transition Dyspnoea Index (TDI).
- Description of the Borg Category-Ratio-10 (CR-10) scale.
Main Results:
- Clinical methods for measuring dyspnoea have evolved beyond simple task magnitude.
- Newer indices like BDI and TDI incorporate functional impairment and effort magnitude.
- The Borg CR-10 scale offers a ratio-scaled measurement with verbal descriptors.
Conclusions:
- Improved clinical rating scales enhance the measurement of dyspnoea.
- Comprehensive assessment considers task, functional impact, and effort.
- Various measurement instruments differ in administration, cost, and time requirements.