Aortic valve replacement in low-flow, low-gradient aortic stenosis: Left ventricular ejection fraction matters
نویسندگان
چکیده
منابع مشابه
Low-flow aortic stenosis and preserved left ventricular ejection fraction.
Valvular aortic stenosis (AS) is the most frequent valvular disease in developed countries. Treatment decisions in AS are mainly based upon the symptomatic status of the patient and the severity of AS. Doppler echocardiography represents the standard tool for detecting and assessing the severity of the disease. Under the same denomination of severe AS [aortic valve area (AVA) < 1 cm(2)], severa...
متن کاملLow Gradient, Low Ejection Fraction Aortic Stenosis.
Low gradient aortic stenosis can be caused by critical aortic stenosis causing left ventricular impairment or by more moderate aortic stenosis coexisting with another cause of left ventricular impairment. The main challenges are to differentiate these two states and then to determine whether the left ventricle is likely to recover after aortic valve surgery. Exhaustive echocardiography is neces...
متن کاملOutcome of patients with aortic stenosis, small valve area, and low-flow, low-gradient despite preserved left ventricular ejection fraction.
OBJECTIVES The aim of this case match study was to compare the outcome of patients with paradoxical low-flow (left ventricular ejection fraction [LVEF] ≥50% but stroke volume index <35 ml/m(2)), low-gradient (mean gradient [MG] <40 mm Hg), a priori severe (aortic valve area [AVA] ≤1.0 cm(2)) aortic stenosis (AS) (PLG-SAS group) with that of patients with a severe AS (AVA ≤1.0 cm(2)) and consist...
متن کاملRelationship Between QT Interval and Outcome in Low‐Flow Low‐Gradient Aortic Stenosis With Low Left Ventricular Ejection Fraction
BACKGROUND QT interval has been shown to be associated with cardiovascular events. There is no data regarding the association between QT interval and left ventricular (LV) function and prognosis in patients with low LV ejection fraction (LVEF), low-flow, low-gradient aortic stenosis (LF-LG AS). We aimed to examine the relationship between corrected QT interval (QTc) and LV function and outcome ...
متن کاملInfluence of preoperative left ventricular contractile reserve on postoperative ejection fraction in low-gradient aortic stenosis.
BACKGROUND Dobutamine stress hemodynamics (DSH) has the potential to stratify operative risk in low-gradient aortic stenosis (AS), but little is known about the relation between left ventricle contractile reserve and postoperative left ventricular ejection fraction (LVEF). We sought to assess the value of DSH to predict postoperative improvement in LVEF. METHODS AND RESULTS Sixty-six consecut...
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ژورنال
عنوان ژورنال: The Journal of Thoracic and Cardiovascular Surgery
سال: 2017
ISSN: 0022-5223
DOI: 10.1016/j.jtcvs.2017.03.102