医学
肥厚性心肌病
左心室肥大
心脏病学
内科学
法布里病
室性心动过速
错义突变
心肌病
致心律失常性右心室发育不良
疾病
突变
心力衰竭
血压
基因
遗传学
生物
作者
Marie‐France Poulin,Alap Shah,Richard G. Trohman,Christopher Madias
出处
期刊:World Journal of Clinical Cases
[Baishideng Publishing Group Co (World Journal of Clinical Cases)]
日期:2015-01-01
卷期号:3 (6): 519-519
被引量:8
标识
DOI:10.12998/wjcc.v3.i6.519
摘要
A 54-year-old female with Anderson-Fabry disease (AFD)-R342Q missense mutation on exon 7 in alpha-galactosidase A (GLA) gene - presented with sustained ventricular tachycardia. Imaging confirmed the presence of a new left ventricular apical aneurysm (LVAA) and a significantly reduced intra-cavitary gradient compared to two years prior. AFDcv is an X-linked lysosomal storage disorder caused by GLA enzyme deficiency. The phenotypic expression of AFD in the heart is not well described. Cardiac involvement can include left ventricular hypertrophy (LVH), which is typically symmetric, but can also mimic hypertrophic cardiomyopathy (HCM). Left ventricular apical aneurysm is a rare finding in HCM. We suggest a shared mechanism of LVAA formation in AFD and HCM, independent of the underlying cardiomyopathy. Mechanisms of LVAA formation in HCM include genetic predisposition and long-standing left ventricular wall stress from elevated intra-cavitary systolic pressures due to mid-cavitary obstruction. Both mechanisms are supported in this patient (a brother with AFD also developed a small LVAA). Screening for AFD should be considered in cases of unexplained LVH, particularly in patients with the aneurysmal variant of HCM.
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