Zhang Shaozhen, Zhao Wang
Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, No. 139, Middle Renmin Road, Changsha, Hunan 410011, China.
Eur Heart J Case Rep. 2025 Apr 8;9(4):ytaf166. doi: 10.1093/ehjcr/ytaf166. eCollection 2025 Apr.
Restrictive cardiomyopathy (RCM) is characterized by impaired diastolic function and ventricular filling, often due to genetic and environmental factors. The gene, encoding myosin heavy chain in muscle fibres critical for muscle contraction, has been implicated in RCM.
We describe the case of a female patient who was presented with recurrent chest tightness and shortness of breath. Based on imagining findings and genetic testing, she was diagnosed with -induced RCM. Her daughter inherited the same variant but presented with a hypertrophic phenotype.
-induced cardiomyopathy is a complex condition, associated with variable clinical presentation and phenotype. While imagining and endomyocardial biopsy play important roles in diagnosing RCM, their application might be limited for economic and safety reasons. Further research is needed to elucidate the pathogenesis and develop safer and cheaper approaches to diagnose -induced restrictive cardiomyopathy.
限制性心肌病(RCM)的特征是舒张功能和心室充盈受损,通常由遗传和环境因素引起。编码对肌肉收缩至关重要的肌纤维中肌球蛋白重链的基因与RCM有关。
我们描述了一名女性患者的病例,该患者反复出现胸闷和呼吸急促。根据影像学检查结果和基因检测,她被诊断为诱导性RCM。她的女儿遗传了相同的变异,但表现为肥厚型表型。
诱导性心肌病是一种复杂的疾病,与临床表现和表型的多样性有关。虽然影像学检查和心内膜心肌活检在诊断RCM中起着重要作用,但由于经济和安全原因,它们的应用可能受到限制。需要进一步研究以阐明其发病机制,并开发更安全、更便宜的方法来诊断诱导性限制性心肌病。