• Chutong Ren, Zhenfei Fang, Yanshu Zhao, and Jun Luo.
• Department of Minimal Invasive Surgery.
• Medicine (Baltimore). 2020 Jun 19; 99 (25): e20279.

RationaleArrhythmogenic right ventricular cardiomyopathy (ARVC) is a hereditary cardiomyopathy disease discovered in 1994. Though there are advances in diagnosis of arrhythmogenic right ventricular cardiomyopathy, early diagnosis is still difficult especially when it is combined with other diseases with similar pathophysiologic changes, such as left to right shunt congenital heart disease (CHD). In this paper, we reported a case of CHD combined with ARVC.Patient ConcernsThe patient was referred to us for chest tightness and shortness of breath after physical activities. His cardiac MRI indicated the possibility of arrhythmogenic right ventricular cardiomyopathy. He was diagnosed with a large atrial septal defect (ASD) through ultrasound examination.DiagnosisCHD ASD combined with arrhythmogenic right ventricular cardiomyopathy.InterventionsThe patient underwent occlusion of the ASD and he was followed-up closely. His symptoms were relieved a lot and the activity tolerance was elevated.LessonsCHD may accompany with arrhythmogenic right ventricular cardiomyopathy. Careful history collection and comprehensive examinations should be emphasized. We firmly believe that our work will be helpful for the medical practice of similar complicated cardiovascular diseases.

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