Early detection of right ventricular systolic dysfunction by using myocardial acceleration during isovolumic contraction in patients with mitral stenosis

Abstract

TDI-derived right ventricular IVA may be used as an adjunctive, reliable, noninvasive parameter for the early detection of right ventricular systolic dysfunction in patients with MS but without signs of systemic venous congestion.

Evaluation of the effect of mitral stenosis severity on the left ventricular systolic function using isovolumic myocardial acceleration

“…It can detect even small changes in the contractile function and is well correlated with the invasive or noninvasive measures of LV dP/dt [13,17]. Therefore, IVA can be used as a valuable and easy parameter for the quantification of global systolic function in various cardiac diseases [26,27].…”

“…Tayyareci et al [26] investigated the IVA of right ventricle in prediction of the degree of MS and demonstrated that Sm, IVV and IVA of right ventricle significantly decreased in the patients with MS compared to the control group, however, they noted that only right ventricle and IVA can predict the degree of MS. Decreased IVA of LV was shown in MS patients in our study, although it was not associated with the degree of stenosis.…”

“…Decreased IVA of LV was shown in MS patients in our study, although it was not associated with the degree of stenosis. This discrepancy might be caused by the classification differences; since Tayyareci et al [26] grouped the MS patients into two groups (mild-moderate and severe) instead of three (mild, moderate and severe), which was helpful in the assessment of treatment strategies. Besides, the correlation of IVA with both LA diameter and PASP might be resulted from the increase in these two parameters due to hemodynamic effects of stenosis, instead of the systolic dysfunction of LV.…”

Modern Approaches to the Evaluation of Right Ventricular Function

“…Данный показатель хорошо зарекомендовал себя в каче-стве прогностического при заболеваниях правых отделов сердца [17,19,20,21,22]. Кроме того, в отличие от остальных индексов, этот параметр менее зависит от постнагрузки, однако широкие диапазоны нормальных значений (1,4-3,0 см/сек), полученные разными авторами, не позволяют ис-пользовать его как скрининговый метод оценки глобальной систолической функции правого желудочка.…”

Experimental Impact of Mucopolysaccharidosis on Right Atrial Contractile Capacity of Skinned Fibers

“…The importance of this issue can be seen in the observation, that a dysfunctional preoperative right ventricular function is associated with postoperative regurgitation, requirement of more blood transfusion, longer intensive care unit stays and hospital stays [1]. An early involvement of right ventricular function in mitral valve stenosis is shown by Tayyareci, who performed a study to detect early signs of right ventricular dysfunction in patients with MS [2]. He found some evidence for an early systolic dysfunction in patients without signs of systemic venous congestion.…”