نتایج جستجو برای: aortic stenosis
تعداد نتایج: 160989 فیلتر نتایج به سال:
Variations in certain slopes of the carotid pulse which exist among normal subjects, patients with aortic valvular disease, and those with hypertrophic subaortic stenosis were examined. Records from 256 subjects were quantified with computer technics. The externally recorded volume pulses were related to simultaneously recorded brachial artery pressures (cuff); thus the slopes are expressed in ...
Variations in certain slopes of the carotid pulse which exist among normal subjects, patients with aortic valvular disease, and those with hypertrophic subaortic stenosis were examined. Records from 256 subjects were quantified with computer technics. The externally recorded volume pulses were related to simultaneously recorded brachial artery pressures (cuff); thus the slopes are expressed in ...
It has been reported that 30-40% of patients with aortic stenosis are hypertensive. In such patients, the left ventricle faces a double (i.e. valvular and vascular) pressure overload, which results in subsequent wall volume hypertrophy. From a clinical standpoint, it is difficult to separate the respective contributions of aortic stenosis and systemic hypertension to left ventricular burden and...
OBJECTIVE In this study, we have designed an analog circuit model of the cardiovascular system that is able to simulate normal condition and cardiovascular diseases, such as mitral stenosis, aortic stenosis, and hypertension. Especially we focused on severe aortic stenosis, because it is one of the causes of sudden death in asymptomatic patients. In this study, we aim to investigate the simulat...
Supravalvular aortic stenosis is a less common form of left ventricular outflow tract obstruction (LVOTO); commonest being the valvular aortic stenosis followed by valvular and subvalvular forms respectively. Most of the supravalvular aortic stenosis is associated with Williams syndrome; isolated supravalvular aortic stenosis is further rarer. We present a case of isolated SVAS with infective e...
OBJECTIVES To examine long axis excursion in patients with all grades of aortic stenosis and preserved transverse systolic function, and to compare long axis excursion in symptomatic with that in asymptomatic severe aortic stenosis. DESIGN Prospective comparative study. SETTING Regional cardiothoracic centre. PATIENTS 78 patients with all grades of aortic stenosis and normal fractional sh...
CALCIFIC AROTIC STENOSIS AND ATHEROSCLEROSIS: Aortic stenosis is the most frequent valvular heart disease in western world and its incidence continues to rise. Aortic sclerosis is the first characteristic lesion of the cusps, which is today considered a process similar to atherosclerosis. The progression of the disease is an active process leading to forming of bone matrix and heavily calcified...
A 9-year-old girl with the supravalvar aortic stenosis syndrome is presented. In addition to the classical features of the syndrome, namely supravalvar aortic stenosis, peripheral pulmonary stenosis, typical facies, and mental retardation, she was also found to have stenosis at the origin of all aortic arch main branches, a hitherto undescribed feature.
The height of the "a" wave of the apexcardiogram was evaluated as a marker for critical aortic stenosis in patients over 40. Critical aoritc stenosis was defined as an aortic valve area less than .75 cm-2 with no more than mild aortic insufficiency. Phonocardiograms and apexcardiograms were performed on 72 patients with catheterization proven aortic stenosis and on 14 normal controls, all over ...
OBJECTIVE To determine the incidence and prognosis of congenital aortic valve stenosis in the five Health Districts of Liverpool that make up the Merseyside area. DESIGN The records of the Liverpool Congenital Malformations Registry and the Royal Liverpool Children's Hospital identified 239 patients (155 male, 84 female) born with aortic valve stenosis between 1960 and 1990. Patients were tra...
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