Neither Athletic Training nor Detraining Affects LV Hypertrophy in Adult, Low-Risk Patients With HCM

We retrospectively evaluated our database of patients with HCM who were engaged in competitive sport at the time of first diagnosis. Diagnosis was based on imaging recognition of left ventricular (LV) wall thickness >15 mm in any myocardial segment in the absence of another condition capable of producing such a degree of hypertrophy (2). Sixty patients with echocardiographic and 12-lead electrocardiographic data available on serial evaluations (>1 year apart) were included in this analysis. The clinical status of the 60 patients was recorded during follow-up. No differences were observed in LV cavity size and wall thickness, regardless of patients’ sport participation . The left atrium increased in size mildly over time in both groups. No changes in LV filling parameters occurred.