Coronary vasomotor dysfunction in cancer survivors treated with thoracic irradiation.

ABSTRACT:

Background

We sought to test the hypothesis that thoracic radiation therapy (RT) is associated with impaired myocardial flow reserve (MFR), a measure of coronary vasomotor dysfunction.

Methods

We retrospectively studied thirty-five consecutive patients (71% female, mean ± standard deviation (SD) age: 66 ± 11 years) referred clinically for positron emission tomography/computed tomography (PET/CT) myocardial perfusion imaging at a median (interquartile range, IQR) interval of 4.3 (2.1, 9.7) years following RT for a variety of malignancies. Radiation dose-volume histograms were generated for the heart and coronary arteries for each patient.

Results

The median (IQR) of mean cardiac radiation doses was 12.0 (1.2, 24.2) Gray. There were significant inverse correlations betw

SUBMITTER: Groarke JD 

PROVIDER: S-EPMC7855471 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature