Left Ventricular Outflow Tract Obstruction after Ross-Konno Operation
INTRODUCTION: SAM (systolic anterior motion) isdefined as the dynamic motion of the anterior mitral valve leaflet to the leftventricular outflow tract (LVOT) during systole. In this study, we present acase which we e,ncountered with significant left ventricular outflow tractobstruction (LVOTO) related to SAM and developed after Ross-Konno operation. METHOD:A 4-month, 6.2 kg girl underwent balloon valvuloplasty due to bicuspid aorticstenosis when she was one-month. Ross-Konno operation was performed on the patient due to residual aortic stenosis(peak gradient of 140 mm Hg) and severe aortic regurgitation. Intraoperativeechocardiography (ECHO)showed a peak gradient of 25 mmHg between the LV-Aorta. RESULTS: In the ICU atpostoperative 3. hour, when tachycardia began with the patient’s hemodynamicdeterioration, SAM in ECHO and concomitant LVOTO (Peak grad: 140 mmHg) and 2nddegree MY was identified. Pulmonary edema was observed along with a decrease inoxygen saturation. The treatment initiat......
【作者名称】: Cenap Zeybek
, Mustafa Kemal Avsar
, Ozgür Yildirim
, Mehmet Salih Bilal
【关 键 词】: Systolic Anterior Motion Of Mitral Valve
, Ross-Conno Operatio
, Left Ventricular Outflow Tract Obstruction
, Open Access Library
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