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Prediction of Cardiovascular Outcomes With Left Atrial Size

Is Volume Superior to Area or Diameter?

Teresa S.M. Tsang, MD, FACC^_*,,_*, Walter P. Abhayaratna, MBBS, FRACP^_*,, Marion E. Barnes, MS, Yoko Miyasaka, MD, PhD, FACC^_*,, Bernard J. Gersh, MB, ChB, DPhiL, FACC^_*, Kent R. Bailey, PhD, Stephen S. Cha, MS and James B. Seward, MD, FACC^_*,

^_* Division of Cardiovascular Diseases and Internal Medicine, Mayo Clinic, Rochester, Minnesota
Mayo Echocardiography Research Center, Mayo Clinic, Rochester, Minnesota
Section of Biostatistics, Mayo Clinic, Rochester, Minnesota

View larger version (20K): [in a new window]   Figure 1 Receiver-operator characteristic curves for the overall performance of left atrial (LA) diameter, LA area, and indexed LA volume for the prediction of cardiovascular events in patients with sinus rhythm.

View larger version (19K): [in a new window]   Figure 2 Graded relationship between Kaplan-Meier cumulative event-free survival and categorical increment of indexed left atrial (LA) volume.