This study evaluated the structural, functional and tissue characteristic changes of myocardium in patients with hypertrophic obstructive cardiomyopathy after treated with the Liwen procedure using cardiac magnetic resonance (CMR) techniques. Compared with pre-operation, one year after treated with Liwen procedure (a new effective procedure), patients’ septal and left ventricular free wall thickness and left ventricular mass (LVM) were significantly reduced. There was no significant change in left ventricular ejection fraction (LVEF) (P>0.05).
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Zheng et al. (2024) studied this question.
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