نتایج جستجو برای: valvular regurgitation
تعداد نتایج: 24174 فیلتر نتایج به سال:
Today, an inclusive evaluation of valvular incompetence plays a significant role in clinical cardiology. Also, an accurate evaluation of Regurgitant Volume (RV) in cardiac patients with Valvular Regurgitation (VR) is crucial to analyze the progression of the disease, which can then decide the suitable time for surgical treatment or further treatment. Numerous techniques and algorithms have been...
Mitral and aortic valve regurgitation both lead to left ventricle volume overload, but have different pathophysiology. Preload is increased in mitral regurgitation whereas afterload is normal since part of the ejection flow goes to the left atrium; however, both preand afterload are increased in aortic regurgitation. When the regurgitations are chronic, the ventricle adapts by increasing the vo...
T he recognition, quantification, and follow-up of valvular regurgitation is a long-standing clinical problem. While many ways to evaluate the severity of valvular insufficiency have been tried, none allows precise quantification of regurgitant volume, much less of the severity of the lesion's effect on the cardiovascular system and the patient.' Invasive angiography is the traditional and most...
availability of a new tool it is incumbent on clinical investigators to develop guidelines for defining the normal range of findings. Many recent studies have suggested that with improving sensitivity of Doppler ultrasound devices, valvular regurgitation may be detected through the tricuspid valves of as many as 95% of the healthy subjects in some series,3 92% of pulmonary valves,4 and a variab...
availability of a new tool it is incumbent on clinical investigators to develop guidelines for defining the normal range of findings. Many recent studies have suggested that with improving sensitivity of Doppler ultrasound devices, valvular regurgitation may be detected through the tricuspid valves of as many as 95% of the healthy subjects in some series,3 92% of pulmonary valves,4 and a variab...
Acute severe valvular regurgitation is a surgical emergency, but accurate and timely diagnosis can be difficult. Although cardiovascular collapse is a common presentation, examination findings to suggest acute regurgitation may be subtle, and the clinical presentation may be nonspecific. Consequently, the presentation of acute valvular regurgitation may be mistaken for other acute conditions, s...
Vr. H., a 20ear-old Negro housewife, was apparently norimnal at birth except for small supernumeraryl digits on eaich of her 4 extremities. As a child she was able to keel) up with other children until her early teens when she noted easy fatigabilitv on moderate exertion and inability to run because of dvspnea and marked dizziness. At 15 years of age she had pleurisy an(l shortness of l)reathi ...
BACKGROUND Echocardiographic screening for rheumatic heart disease (RHD) has the potential to detect subclinical cases for secondary prevention, but is constrained by inadequate human resources in most settings. Training non-expert health workers to perform focused cardiac ultrasound (FoCUS) may enable screening at a population-level. We aimed to evaluate the quality and agreement of FoCUS for ...
To assess the prevalence of valvular regurgitation in the aged, we studied 176 apparently healthy volunteers with no history or physical evidence of cardiac abnormality. Their ages ranged from 40 to 90 (66 +/- 14, mean +/- SD) years. We examined these subjects by pulsed Doppler echocardiography combined with two-dimensional echocardiography to determine the prevalence of valvular regurgitation....
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