Assessment of Normal-Flow Aortic Stenosis
نویسندگان
چکیده
منابع مشابه
Assessment of Normal-Flow Aortic Stenosis
The increasing complexity of assessing aortic stenosis (AS) will perhaps haunt cardiologists in years to come. Did we over-complicate it, were we overly ambitious in trying to identify those who might benefit from intervention? These are questions that we will be held accountable for by the vast numbers of patients who now carry some form of this diagnosis, and we have reason to be concerned. T...
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The presence of a low transvalvular pressure gradient (<40 mmHg) in conjunction with a small aortic valve area (AVA ≤1 cm) is a challenging situation as it raises uncertainty about the actual severity of aortic stenosis (AS) and therefore about the indication of aortic valve replacement (AVR) if the patient is symptomatic. This lowgradient ‘severe’ (small AVA) AS entity may in fact be related t...
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In a search for an indirect estimate of severity, data from 40 patients with pure aortic stenosis have been analyzed. Calculated aortic valvular areas ranged from 0.5 cm2 to 2.4 cm.2 Both aortic systolic upstroke time and the rate of aortic pressure rise were significantly altered by aortic stenosis; neither permitted reliable estimates of severity of the stenosis. An estimate of arterial compl...
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"Degenerative" or calcific aortic stenosis is a complex, multifaceted, systemic disease that is not solely limited to the aortic valve but also includes reduced arterial compliance as well as alterations of left ventricular geometry and function. This particular nature of the disease underscores the need for a more comprehensive evaluation of disease severity going beyond the standard parameter...
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Pulmonary stenosis has alw"ays attracted more attention than other forms of congenital heart disease. This was true even in the eighteenth and nineteenth centuries, when the approach to the whole subject was mainly aitatomical, and for that reason academic. In recent years the surgical treatment of pulmonary stenosis has inevitably aroused further interest and has underlined the need for more d...
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ژورنال
عنوان ژورنال: Circulation: Cardiovascular Imaging
سال: 2017
ISSN: 1941-9651,1942-0080
DOI: 10.1161/circimaging.117.007293