Right and left ventricular interaction in pulmonary hypertension: Insight from velocity vector imaging

2019 ◽  
Vol 36 (5) ◽  
pp. 877-887
Author(s):  
Hong Meng ◽  
Krishnaswamy Chandrasekaran ◽  
Hector R. Villarraga ◽  
Aijaz A. Shah ◽  
Maytinee Kittipovanonth ◽  
...  
Keyword(s):  
Pulmonary Hypertension ◽  
Velocity Vector ◽  
Left Ventricular ◽  
Ventricular Interaction ◽  
Velocity Vector Imaging

scholarly journals The results of standard echocardiography and use of Velocity Vector Imaging technology after surgical revascularization in patients with coronary artery disease

2019 ◽  
Vol 18 (2) ◽  
pp. 31-43
Author(s):  
A. Yu. Vasiliev ◽  
E. B. Petrova ◽  
M. V. Fedorova ◽  
S. B. Efimova ◽  
P. N. Kordatov
Keyword(s):  
Coronary Artery ◽  
Velocity Vector ◽  
Artery Bypass ◽  
Objective Assessment ◽  
Left Ventricular ◽  
Lv Function ◽  
Surgical Revascularization ◽  
Imaging Technology ◽  
Velocity Vector Imaging ◽  
The Impact

The aim of the study was to assess the impact of surgical revascularization on left ventricular function using standard echocardiographic study and Velocity Vector Imaging technology. Materials and methods. 40 patients with ischemic heart disease were examined before and 12 days, 6, 12 and 24 months after coronary artery bypass grafting (CABG). A standard echocardiographic (EchoCG) study was performed on ultrasound scanner Acuson Х 300 (Siemens, USA) with a 5–1 MHz sector multifrequency sensor. For objective assessment of myocardial function, the analysis of left ventricular (LV) deformation and rotational properties was performed using Syngo VVI (Siemens Medical Solutions USA Inc., США) in 720 LV segments. Results. Standard EchoCG showed a stable systolic, diastolic and contractile LV function during 2 years of follow-up. The study of global values of strain (S) and strain rate (SR) showed a decrease in longitudinal S 6 months after CABG in the right coronary artery (RCA) area in the group of patients with complaints compared to those who had no complaints (p = 0.004), in addition, in this zone there was a tendency to a difference in longitudinal SR between these two groups (p = 0.07). In anterior descending artery area was a tendency to decreased strain of longitudinal fibers (p = 0.06) during the same period of observation. 1 year after CABG, strain decreased in patients with complaints (p = 0.04) in the circumference artery area only in circular fibers. Positive dynamics were noted in the diastolic function of left ventricular fibers and rotation indices. Conclusion. The use of Velocity Vector Imaging after coronary bypass surgery shows a change in the function of myocardial fibers in the areas of coronary arteries, which is important in patients complaining of angina pain. 

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