Methods:Two patients who received homologous orthotopic heart transplantation were followed up with echocardiography regularly and endomyocardial biopsies were done according to clinical necessity.

• 方法:2例患者同种原位心脏移植术后定期彩色超声心动图检查,必要的心肌活检。结果:供体心房与受体心房吻合使左右心房呈“腰征”,心房上下径增大;