心肌致密化不全(NVM)是一种少见的先天性遗传性心肌疾患,多认为心脏胚胎发育早期网织状肌小梁致密化过程失败,导致小梁化的心肌持续存在,以心室内有许多突起的肌小梁、小梁间深陷的隐窝和心室收缩和舒张功能减退为特征。1995年以前,心肌病的分类中没有心肌致密化不全的确切类型 Myocardial degeneration (NVM) is a rare inherited congenital heart disease, many believe that the early embryonic embryonic meshwork trabecular meshwork densification process failed, leading to the persistence of trabecular myocardial, with many ventricular Prominent trabecular, trabecular deep recess and ventricular contraction and diastolic dysfunction is characterized. Prior to 1995, there was no exact type of myocardial densification in the classification of cardiomyopathy