To analyze myocardial compliance in young patients with neurofibromatosis t
ype I without cardiovascular malformations compared with normal subjects, w
e used pulsed Doppler tissue imaging to study 42 patients at our pediatric
department (mean age 10 years, range 4 to 19). Our study is the first to de
monstrate the presence of a diastolic dysfuntion in patients with neurofibr
omatosis type I and to suggest the presence of an underlying cardiovascular
disease in these patients.