Methods: Longitudinal retrospective observational studies were conducted with 27 consecutive families in which LMNA gene defects were identified in the probands, all sharing the DCM phenotype.

• 方法：对连续的27个已鉴定为核纤层蛋白A/C基因缺陷的家庭进行纵向追溯观测研究，都存在扩张型心肌病表型。