Value of low-dose dobutamine stress echocardiography on defining true severe low gradient aortic stenosis in patients with preserved left ventricular ejection fraction.

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第一作者： Dan,Liu

第一单位： Department of Internal Medicine I, University Hospital Würzburg, Würzburg, Germany.

作者： Dan,Liu ^[1] ; Kai,Hu ^[2] ; Eva,Liebner ^[1] ; Frank,Weidemann ^[2] ; Sebastian,Herrmann ^[1] ; Georg,Ertl ^[3] ; Stefan,Frantz ^[1] ; Peter,Nordbeck ^[2]

作者单位： Department of Internal Medicine I, University Hospital Würzburg, Würzburg, Germany. ^[1] Comprehensive Heart Failure Center, Würzburg, Germany. ^[2] Medizinische Klinik I des Klinikum Vest, Recklinghausen, Germany. ^[3] Department of Internal Medicine I, University Hospital Würzburg, Würzburg, Germany. nordbeck_p@ukw.de. ^[4] Comprehensive Heart Failure Center, Würzburg, Germany. nordbeck_p@ukw.de. ^[5] Medizinische Klinik und Poliklinik I, Comprehensive Heart Failure Center, University Hospital Würzburg, Oberdürrbacher Str. 6, 97080, Würzburg, Germany. nordbeck_p@ukw.de. ^[6]

关键词 Aortic stenosis Aortic valve velocity ratio Mitral annular plane systolic excursion Stress echocardiography Systolic pulmonary artery pressure