Clinical, scintigraphic, and angiographic predictors of oxygen pulse abnormality in patients undergoing cardiopulmonary exercise testing.

ABSTRACT:

Background

The oxygen (O₂ ) pulse curve obtained at cardiopulmonary exercise testing provides information on cardiorespiratory fitness and the presence of cardiovascular disease. O₂ pulse abnormalities have been attributed to myocardial ischemia, among other conditions, but the predictors of abnormal O₂ pulse curves are not completely known.

Hypothesis

Perfusion abnormalities detected by myocardial perfusion scintigraphy (MPS) may be associated with abnormal O₂ pulse curves.

Methods

Forty patients with normal left ventricular function underwent cardiopulmonary exercise testing with radiotracer injection at peak exercise, followed by MPS. The O₂ pulse curves were classified as (A) normal; (B) probably normal (norma

SUBMITTER: De Lorenzo A 

PROVIDER: S-EPMC6490395 | biostudies-literature | 2017 Oct

REPOSITORIES: biostudies-literature