Assessment of regional right ventricular systolic function in patients with obstructive sleep apnea syndrome using velocity vector imaging
نویسندگان
چکیده
منابع مشابه
Assessment of regional right ventricular systolic function in patients with obstructive sleep apnea syndrome using velocity vector imaging
Obstructive sleep apnea syndrome (OSAS) is the most common type of sleep disorder which is associated with a series of cardiovascular disorders, including right ventricular (RV) dysfunction. However, it is difficult to assess the RV function systematically using a conventional echocardiography because RV has a complex geometrical shape. A case-control study was performed to assess the regional ...
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BACKGROUND The aims of this study were to evaluate subclinical regional right ventricular (RV) dysfunction in newly diagnosed obstructive sleep apnea (OSA) patients without systemic and pulmonary arterial (PA) hypertension, and to correlate OSA severity to RV dysfunction, using both velocity vector imaging (VVI)-derived strain imaging and tissue Doppler imaging (TDI). METHODS AND RESULTS The ...
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Background and Purpose: Sleep breathing disorders have a negative impact on the illness outcome and quality of life in patients with heart failure. This study was conducted to investigate the probability of obstructive sleep apnea in men with heart failure and some related factors. Method: This was a cross-sectional study conducted on 100 male patients with systolic heart failure selected throu...
متن کاملLeft ventricular systolic dysfunction in patients with obstructive sleep apnea syndrome.
STUDY OBJECTIVES Conflicting results have been reported regarding the effects of obstructive sleep apnea syndrome (OSAS) on daytime left ventricular (LV) systolic function. This study aimed to assess the prevalence and causes of LV systolic dysfunction, using radionuclide angiography, in a large group of patients with OSAS. DESIGN AND SETTING A prospective study in the pneumology department o...
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AIMS This study tested the feasibility of velocity vector imaging (VVI) analysis to quantitatively assess right ventricular (RV) function during stress echocardiography (SE). METHODS AND RESULTS We prospectively enrolled 73 patients (treadmill 38, dobutamine 35) undergoing SE using an Acuson C512 ultrasound system. The RV ejection fraction was measured for global RV function. The radial veloc...
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ژورنال
عنوان ژورنال: Medicine
سال: 2016
ISSN: 0025-7974
DOI: 10.1097/md.0000000000004788