title: The utility of cardiac stress testing for detection of cardiovascular disease in breast cancer survivors: a systematic review.
abstract: BACKGROUND
  Heart function tests performed with myocardial stress, or "cardiac stress tests", may be beneficial for detection of cardiovascular disease. Women who have been diagnosed with breast cancer are more likely to develop cardiovascular diseases than the general population, in part due to the direct toxic effects of cancer treatment on the cardiovascular system. The aim of this review was to determine the utility of cardiac stress tests for the detection of cardiovascular disease after cardiotoxic breast cancer treatment.
  
  
  METHODS
  Systematic review.
  
  
  METHODS
  Medline and Embase were searched for studies utilizing heart function tests in breast cancer survivors. Studies utilizing a cardiac stress test and a heart function test performed at rest were included to determine whether stress provided added benefit to identifying cardiac abnormalities that were undetected at rest within each study.
  
  
  RESULTS
  Fourteen studies were identified. Overall, there was a benefit to utilizing stress tests over tests at rest in identifying evidence of cardiovascular disease in five studies, a possible benefit in five studies, and no benefit in four studies. The most common type of stress test was myocardial perfusion imaging, where reversible perfusion defects were detected under stress in individuals who had no defects at rest, in five of seven studies of long-term follow-up. Two studies demonstrated the benefit of stress echocardiography over resting echocardiography for detecting left ventricular dysfunction in anthracycline-treated breast cancer survivors. There was no benefit of stress cardiac magnetic resonance imaging in one study. Two studies showed a potential benefit of stress electrocardiography, whereas three others did not.
  
  
  CONCLUSIONS
  The use of cardiac stress with myocardial perfusion imaging and echocardiography may provide added benefit to tests performed at rest for detection of cardiovascular disease in breast cancer survivors, and merits further research.
authors: Rehabilitation Sciences, University of British Columbia, Vancouver, BC, Canada.
authors: Amy A
authors: AA
authors: Kirkham
authors: Department of Medicine, University of British Columbia, Vancouver, BC, Canada.
authors: Sean A
authors: SA
authors: Virani
authors: Rehabilitation Sciences, University of British Columbia, Vancouver, BC, Canada ; Department of Physical Therapy, University of British Columbia, Vancouver, BC, Canada.
authors: Kristin L
authors: KL
authors: Campbell
keywords: breast neoplasms; exercise test; heart diseases; heart function tests; review
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