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Reoperation for prosthetic aortic valve obstruction in the era of echocardiography: trends in diagnostic testing and comparison with surgical findings

Steven E. Girard, MD, PhD^*, Fletcher A. Miller, Jr., MD, FACC^*, Thomas A. Orszulak, MD, Charles J. Mullany, MD, Samantha Montgomery, MS, William D. Edwards, MD, Henry D. Tazelaar, MD, Joseph F. Malouf, MD, FACC^* and A. Jamil Tajik, MD, FACC^*

^* Division of Cardiovascular Disease, Mayo Clinic and Mayo Foundation, Rochester, Minnesota, USA
Division of Internal Medicine, Mayo Clinic and Mayo Foundation, Rochester, Minnesota, USA
Division of Cardiovascular Surgery, Section of Biostatistics, Mayo Clinic and Mayo Foundation, Rochester, Minnesota, USA
Division of Anatomic Pathology, Mayo Clinic and Mayo Foundation, Rochester, Minnesota, USA

View larger version (14K): [in a new window]   Figure 1 Temporal trends in hemodynamic catheterization rates for AVR area among patients with prosthetic aortic valve (AVR) obstruction undergoing reoperation. Filled circles = cases of mechanical AVR obstruction. Cochran–Armitage Trend test p = 0.07. Open circles = cases of bioprosthetic AVR obstruction.