Hypertrophic cardiomyopathy is the most common cardiac genetic disorder. Several projects at IEMR explore aspects of this disease, in patients and in transgenic mouse models. In clinical terms, the disease is defined by hypertrophy of the left ventricle. However, IEMR researchers observed that transgenic mice with mutations associated with hypertrophic cardiomyopathy can have hypertrophy even of the right ventricle. This has now resulted in a review article that summarizes current knowledge about involvement of the right ventricle in hypertrophic cardiomyopathy.