The purpose of this study is to observe the safety and effectiveness of the AMPLATZER™ Cardiac Plug (ACP) device in Chinese population indicated for use of AMPLATZER™ Cardiac Plug after its market approval by China FDA (CFDA). This is a prospective, multi-centre, single arm, post approval, observational study. The clinical study will be conducted at up to 35 sites in China. Approximately 343 subjects will be enrolled in this study.