['Our purpose was to investigate cardiovascular abnormalities in children with osteogenesis imperfecta (OI).', 'Two hundred children (100 OI, 100 matched volunteers) were prospectively studied. Aortic and left ventricular (LV) measurements were performed using transthoracic echocardiography. Patients were typed according to modified phenotypical Sillence classification as published in the Nosology and Classification of Genetic Skeletal disorders: 2015 Revision.', 'Patients (age 9.6±4.1\u2005years, body surface area 1.08±0.47\u2005m'] Does echocardiographic phenotype in osteogenesis imperfecta vary with disease severity?