Key result
PMBV is linked to a ~40% relative improvement in LV global peak systolic strain in mitral stenosis.
Why the study?
The effect of successful percutaneous mitral balloon valvuloplasty on left ventricular systolic functions in moderate–severe mitral stenosis patients with normal systolic function was evaluated using strain and strain rate echocardiography.
Does percutaneous mitral balloon valvuloplasty improve left ventricular systolic functions measured by strain echocardiography in patients with moderate-severe mitral stenosis?
Observational
Does percutaneous mitral balloon valvuloplasty improve left ventricular systolic functions measured by strain echocardiography in patients with moderate-severe mitral stenosis?
Absolute Event Rate: -17.32% vs -12.38%
Successful percutaneous mitral balloon valvuloplasty significantly improves left ventricular systolic function as measured by strain and strain rate echocardiography in patients with moderate-severe mitral stenosis.
PMBV was associated with improved LV strain in moderate-severe MS; hypothesis-generating and leaves open need for RCTs before practice change.
Background/aim: This study aimed to evaluate the effect of successful percutaneous mitral balloon valvuloplasty (PMBV) on left ventricular systolic functions using strain and strain rate echocardiography in moderate–severe mitral stenosis (MS) patients with normal left ventricular systolic function confirmed by conventional echocardiography. Materials and methods: Patients with moderate–severe MS who had undergone successful PMBV were included. Conventional echocardiographic parameters were evaluated before and after PMBV. Peak systolic strain and strain rate values of basal, mid, and apical segments of the left ventricular anterior, inferior, septum, and lateral walls were determined. Results: After PMBV, significant decreases were determined in the peak and mean gradients of the mitral valve and pulmonary artery pressure, but a significant increase in the mitral valve area. Significant increases (improvement) were determined in the peak systolic strain and strain rate in the basal, mid, and apical segments of the left ventricular septum, lateral, anterior, and inferior walls and in the left ventricular global peak systolic strain (–17.32 ± 0.58% vs. –12.38 ± 1.06%) and strain rate (–1.65 ± 0.07 vs. –1.22 ± 0.12). Conclusion: Strain and strain rate echocardiography can be used for quantitative evaluation of the effect of PMBV on the left ventricular systolic functions in moderate–severe MS patients.
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Güntürk et al. (2020) conducted an observational in Moderate-severe mitral stenosis. Percutaneous mitral balloon valvuloplasty (PMBV) vs. Before PMBV was evaluated on Left ventricular global peak systolic strain. Percutaneous mitral balloon valvuloplasty significantly improved left ventricular global peak systolic strain (-17.32% vs. -12.38%) in patients with moderate-severe mitral stenosis.
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