Abnormally high exertional breathlessness predicts mortality in people referred for incremental cycle exercise testing.

ABSTRACT:

Background

Exertional breathlessness is a key symptom in cardiorespiratory disease and can be quantified using incremental exercise testing, but its prognostic significance is unknown. We evaluated the ability of abnormally high breathlessness intensity during incremental cycle exercise testing to predict all-cause, respiratory, and cardiac mortality.

Study design and methods

Longitudinal cohort study of adults referred for exercise testing followed prospectively for mortality assessed using the Swedish National Causes of Death Registry. Abnormally high exertional breathlessness was defined as a breathlessness intensity response (Borg 0-10 scale) > the upper limit of normal using published reference equations. Mortality was analyzed using multivariable Cox regression, unadju

SUBMITTER: Elmberg V 

PROVIDER: S-EPMC11654960 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature