Evaluation of Subclinical Right Ventricular Dysfunction in Obstructive Sleep Apnea Patients Using Velocity Vector Imaging
نویسندگان
چکیده
منابع مشابه
Evaluation of subclinical right ventricular dysfunction in obstructive sleep apnea patients using velocity vector imaging.
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 ...
متن کاملSubclinical Left Ventricular Dysfunction in Patients with Obstructive Sleep Apnea
OBJECTIVE We aimed to investigate whether fragmented QRS (fQRS) is associated with subclinical left ventricular (LV) dysfunction in patients with obstructive sleep apnea (OSA). SUBJECTS AND METHODS A total of 141 patients with OSA who had normal LV ejection fraction (LVEF) were included in the study. The fQRS was defined as the presence of an additional R wave, notching of R or S wave or the ...
متن کاملAssessment 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 ...
متن کاملRight ventricular dysfunction in patients with obstructive sleep apnoea syndrome.
There is conclusive evidence that obstructive sleep apnoea syndrome (OSAS) influences right heart haemodynamics and can also induce pulmonary hypertension. It is not known, however, whether right ventricular dysfunction can occur in patients with OSAS in the absence of lung disease. We studied 107 patients (94 males, 13 females, mean age 55 +/- 11 yrs) with polysomnographically verified OSAS in...
متن کاملDetermination of right ventricular dysfunction using the speckle tracking echocardiography method in patients with obstructive sleep apnea.
BACKGROUND The speckle tracking echocardiography (STE) method shows the presence of right ventricular (RV) dysfunction before the advent of RV failure and pulmonary hypertension in patients with cardiopulmonary disease. We aimed to assess subclinical RV dysfunction in obstructive sleep apnea (OSA) using the STE method. METHOD Twenty-one healthy individuals and 58 OSA patients were included. A...
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ژورنال
عنوان ژورنال: Circulation Journal
سال: 2010
ISSN: 1346-9843,1347-4820
DOI: 10.1253/circj.cj-09-0562