The Value of Myocardial Perfusion Single-Photon Emission Computed Tomography in Screening Asymptomatic Patients With Atrial Fibrillation for Coronary Artery Disease
J. Wells Askew, MD*,*,
Todd D. Miller, MD, FACC*,
David O. Hodge, MS and
Raymond J. Gibbons, MD, FACC*
* Division of Cardiovascular Diseases, Department of Internal Medicine
Division of Biostatistics, Department of Health Sciences Research, Mayo Clinic and Mayo Clinic College of Medicine, Rochester, Minnesota
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Figure 1 Summed Stress Score Results in Patients With and Without Atrial Fibrillation
Solid bars = atrial fibrillation patients; open bars = non-atrial fibrillation patients. *The p value for mean SSS between patients with and without atrial fibrillation (p = 0.35). SSS = summed stress score.
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Figure 3 Kaplan-Meier Survival Curves According to Summed Stress Score Risk Categories
Kaplan-Meier estimates for overall survival in atrial fibrillation (AF) patients (A) and non-AF patients (B) according to summed stress score (SSS) risk categories. Survival difference was statistically significant in both AF and non-AF patients (p < 0.001 by log rank statistic). Numbers below the graphs indicate numbers of patients available for analysis at given time points.
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Figure 4 Kaplan-Meier Survival Curves
Kaplan-Meier estimates for overall survival in atrial fibrillation (AF) and non-AF patients. Differences between survival curves were statistically significant (p < 0.001 by log rank statistic). Numbers below the graph indicate numbers of patients available for analysis at given time points.
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Figure 5 Relationship of Summed Stress Score and Mortality in the Presence of Atrial Fibrillation
Kaplan-Meier estimates for overall survival in atrial fibrillation (AF) and non-AF patients according to low-/intermediate-risk summed stress score (SSS) and high-risk SSS. Differences between the survival curves of the low-/intermediate-risk SSS AF and non-AF groups as well as between the high-risk SSS AF and non-AF groups were statistically significant (p < 0.001 by log rank statistic for the curves as shown). Numbers below the graph indicate numbers of patients available for analysis at given time points.
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