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LANCET:一分钟了解扩张型心肌病

2017-02-14 MedSci MedSci原创

扩张型心肌病的定义为存在左心室扩张和收缩功能障碍。高达35%的扩张型心肌病存在编码细胞骨架、肌节和核包膜蛋白的基因突变。获得性扩张型心肌病的原因包括心肌炎和接触酒精、药物和毒素,以及代谢和内分泌紊乱。其最常见的症状有充血性心力衰竭,此外,还包括循环衰竭、心律失常和血栓栓塞事件。继发性神经激素变化有助于逆转重塑和持续的心肌细胞损伤。射血分数极低或严重舒张功能障碍患者的预后是最差的。慢性心力衰竭的治疗

扩张型心肌病的定义为存在左心室扩张和收缩功能障碍。


高达35%的扩张型心肌病存在编码细胞骨架、肌节和核包膜蛋白的基因突变。

获得性扩张型心肌病的原因包括心肌炎和接触酒精、药物和毒素,以及代谢和内分泌紊乱。

其最常见的症状有充血性心力衰竭,此外,还包括循环衰竭、心律失常和血栓栓塞事件。

继发性神经激素变化有助于逆转重塑和持续的心肌细胞损伤。

射血分数极低或严重舒张功能障碍患者的预后是最差的。

慢性心力衰竭的治疗包括改善生存质量和减少住院,换句话说,即使用血管紧张素转化酶抑制剂和β阻断剂。

其他干预包括入选多学科心力衰竭管理,以及使用治疗心律失常和预防猝死的装置。

对药物难治的患者可能从机械循环支持和心脏移植中获益。

目前,正在研究发生临床症状以前的治疗和干细胞治疗的潜在作用。

原始出处:
Weintraub RG, Semsarian C, Macdonald P. Dilated cardiomyopathy. Lancet. 2017 Feb 9. pii: S0140-6736(16)31713-5. 

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    2017-03-21 howi
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    2017-05-17 lsj637
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    2017-02-17 天涯183

    最新研究进展

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    2017-02-15 jihuaijun1112

    无敌学习

    0

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特发性扩张型心肌病(DCM)是目前进行过心脏移植的年轻人心力衰竭最常见的原因,但人们对脂肪沉积在DCM中的临床价值了解甚少。阜外医院陆敏杰等人对此进行了研究,发现脂肪沉积现象在DCM患者中较为普遍,且与DCM诸多特征相关,研究结果近期发表于《美国心脏病学会杂志》。 研究利用水脂分离成像法,前瞻性探索了脂肪沉积在特发性扩张型心肌病(DCM)患者中的发生率,以及左心室(LV)脂肪沉积与心肌纤维化及心

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