• hypertrophic cardiomyopathy

The Authors’ reply

We thank Dr Ramchand and his colleagues for valuable comments1 on our paper from the retrospective data from National Health Insurance Research Database in Taiwan.2

Several key points should be emphasised in interpretation of the observational study. First, although we did not know how many patients received cardiac MRI to establish or confirm the diagnosis of hypertrophic cardiomyopathy (HCM), it is uncommon to mistake hypertensive cardiac disease for HCM. Second, among patients with HCM without hypertension in our study, use of ACE inhibitors/angiotensin …